Alternator for Mercury Marine 115ELPT OptiMax 2004-2014 9-19201 400-12303

HOW TO FIND YOUR FITMENT

Two ways to ensure proper fitment

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LOOK FOR YOUR
MAKE/ MODEL/ YEAR

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Product Info
Applications List
Part Replacement List
Policy Information
Reviews

Quick Links

Product Info

Applications List

Part Replacement List

Policy Information

Reviews

Overview

DB Electrical Alternators for powering Mercury Marine outboards
DB Electrical keeps vehicles of every shape and size moving forward – from mowers, motorcycles and ATVs to automobiles, tractors, pickups and large commercial trucks. We work directly with factories to ensure each component is manufactured to our exacting quality control standards. But because there is no middleman, we can offer these exceptional-quality electrical components at low factory direct prices.

With DB Electrical alternators, you’ll get …

Superior Quality Every Time – Our aftermarket alternators deliver performance that’s equivalent to the original.
Direct-Fit OEM Replacement Parts – DB Electrical aftermarket alternators are designed for perfect fitment to replace the ones that originally came with your vehicle.
Engineer-Tested Excellence – Our alternators go through a rigorous testing program to ensure optimal performance. Most alternators are supplied with their final test results and performance curve.

Reasons to choose DB Electrical for your next alternator:

Built to Take the Heat – Most DB Electrical alternators offer high-temperature epoxy, heavy-duty rectifiers, high-quality regulators, top-quality bearings and high-temperature grease for better charging and longer life under high-heat environments.
Depth of Inventory – Find both common and hard-to-find alternators for virtually any type of vehicle to travel over road, trail or water.
Brand New Alternator – Never settle for a secondhand one. Many places will try to sell you a used alternator for about the price we’ll sell you a new one.

The DB Electrical Advantage – 1-Year Warranty
DB Electrical delivers exceptional value for products that we stand behind with our total-confidence 1-year warranty. Yes, you have a full year to make sure your alternator meets your expectations.

Item Number: 400-12303

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item Condition	Aftermarket Part
Unit Type	Alternator
Voltage	12
Amperage	50
Regulator	IR
Fan Type	IF
Fits	MERCURY MARINE 4-GROOVE PULLEY 50mm OD

Applications List

Select Make & Type

MAKE	TYPE	MODEL	YEAR	ENGINE
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2004	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2005	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2006	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2007	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2008	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2009	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2010	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2011	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2012	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2013	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax	2014	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax Saltwater	2004	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Optimax Saltwater	2005	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Pro XS Optimax	2010	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Pro XS Optimax	2011	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Pro XS Optimax	2012	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Pro XS Optimax	2013	115HP
MERCURY MARINE	Engines - Marine Outboard	115ELPT Pro XS Optimax	2014	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2004	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2005	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2006	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2007	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2008	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2009	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2010	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2011	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2012	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2013	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax	2014	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax Saltwater	2004	115HP
MERCURY MARINE	Engines - Marine Outboard	115EXLPT Optimax Saltwater	2005	115HP
MERCURY MARINE	Engines - Marine Outboard	125ELPT Optimax	2010	125HP
MERCURY MARINE	Engines - Marine Outboard	125ELPT Optimax	2011	125HP
MERCURY MARINE	Engines - Marine Outboard	125ELPT Optimax	2012	125HP
MERCURY MARINE	Engines - Marine Outboard	125ELPT Optimax	2013	125HP
MERCURY MARINE	Engines - Marine Outboard	125ELPT Optimax	2014	125HP
MERCURY MARINE	Engines - Marine Outboard	125EXLPT Optimax	2010	125HP
MERCURY MARINE	Engines - Marine Outboard	125EXLPT Optimax	2011	125HP
MERCURY MARINE	Engines - Marine Outboard	125EXLPT Optimax	2012	125HP
MERCURY MARINE	Engines - Marine Outboard	125EXLPT Optimax	2013	125HP
MERCURY MARINE	Engines - Marine Outboard	125EXLPT Optimax	2014	125HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Bluewater Optimax	1999	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL DTS Optimax	2005	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL DTS Optimax	2006	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL DTS Optimax	2007	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL DTS Optimax	2008	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL DTS Optimax	2009	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax	2006	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax	2007	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax	2008	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax	2009	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax	2010	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax	2011	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax	2012	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax	2013	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax	2014	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax Saltwater	2000	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax Saltwater	2001	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax Saltwater	2002	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax Saltwater	2003	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax Saltwater	2004	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL Optimax Saltwater	2005	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXL OS Optimax	1998	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXXL Bluewater Optimax	1999	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXXL Optimax Saltwater	2000	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXXL Optimax Saltwater	2001	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXXL Optimax Saltwater	2002	200HP
MERCURY MARINE	Engines - Marine Outboard	200CXXL OS Optimax	1998	200HP
MERCURY MARINE	Engines - Marine Outboard	200L DTS Optimax	2005	200HP
MERCURY MARINE	Engines - Marine Outboard	200L DTS Optimax	2006	200HP
MERCURY MARINE	Engines - Marine Outboard	200L DTS Optimax	2007	200HP
MERCURY MARINE	Engines - Marine Outboard	200L DTS Optimax	2008	200HP
MERCURY MARINE	Engines - Marine Outboard	200L DTS Optimax	2009	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	1998	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	1999	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2000	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2001	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2002	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2003	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2004	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2005	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2006	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2007	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2008	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Optimax	2009	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Pro XS Optimax	2010	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Pro XS Optimax	2011	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Pro XS Optimax	2012	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Pro XS Optimax	2013	200HP
MERCURY MARINE	Engines - Marine Outboard	200L Pro XS Optimax	2014	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Bluewater Optimax	1999	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL DTS Optimax	2006	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL DTS Optimax	2007	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL DTS Optimax	2008	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL DTS Optimax	2009	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL DTS Saltwater Optimax	2005	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2002	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2003	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2004	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2005	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2006	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2007	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2008	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2009	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2010	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2011	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2012	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2013	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax	2014	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax Saltwater	2000	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL Optimax Saltwater	2001	200HP
MERCURY MARINE	Engines - Marine Outboard	200XL OS Optimax	1998	200HP
MERCURY MARINE	Engines - Marine Outboard	200XXL Bluewater Optimax	1999	200HP
MERCURY MARINE	Engines - Marine Outboard	200XXL Optimax Saltwater	2000	200HP
MERCURY MARINE	Engines - Marine Outboard	200XXL Optimax Saltwater	2001	200HP
MERCURY MARINE	Engines - Marine Outboard	200XXL Optimax Saltwater	2002	200HP
MERCURY MARINE	Engines - Marine Outboard	200XXL OS Optimax	1998	200HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS Optimax	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS Optimax	2010	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS Optimax	2011	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS XL Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS XL Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS XL Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS XL Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS XL Optimax	2010	225HP
MERCURY MARINE	Engines - Marine Outboard	225 Pro XS XL Optimax	2011	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Bluewater Optimax	1999	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL DTS Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL DTS Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL DTS Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL DTS Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL DTS Optimax Saltwater	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL DTS Optimax Saltwater	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax	2010	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax	2011	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax	2012	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax Saltwater	2000	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax Saltwater	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax Saltwater	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax Saltwater	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax Saltwater	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Optimax Saltwater	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL OS Optimax	1998	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Saltwater EFI	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Saltwater EFI	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Saltwater EFI	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXL Saltwater EFI	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Bluewater Optimax	1999	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL DTS Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL DTS Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL DTS Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL DTS Optimax Saltwater	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL DTS Optimax Saltwater	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL DTX Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax	2010	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax Saltwater	2000	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax Saltwater	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax Saltwater	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax Saltwater	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax Saltwater	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Optimax Saltwater	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL OS Optimax	1998	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Saltwater EFI	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Saltwater EFI	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Saltwater EFI	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225CXXL Saltwater EFI	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225L DTS Optimax	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225L DTS Optimax	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225L DTS Optimax	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225L DTS Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225L DTS Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225L DTS Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225L DTX Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225L EFI	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225L EFI	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225L EFI	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225L EFI	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	1998	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	1999	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2000	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2010	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2011	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Optimax	2012	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Pro XS Optimax	2012	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Pro XS Optimax	2013	225HP
MERCURY MARINE	Engines - Marine Outboard	225L Pro XS Optimax	2014	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Bluewater Optimax	1999	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL DTS Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL DTS Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL DTS Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL DTS Optimax Saltwater	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL DTS Optimax Saltwater	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL DTS Optimax Saltwater	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL DTX Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2000	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2010	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2011	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Optimax	2012	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL OS Optimax	1998	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Pro XS Optimax	2012	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Pro XS Optimax	2013	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Saltwater EFI	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Saltwater EFI	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Saltwater EFI	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225XL Saltwater EFI	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225XS Sport SM RH Optimax Racing	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225XS Sport SM RH Optimax Racing	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225XS Sport SM RH Optimax Racing	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225XS Sport SM RH Optimax Racing	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Bluewater Optimax	1999	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL DTS Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL DTS Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL DTS Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL DTS Optimax Saltwater	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL DTS Optimax Saltwater	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL DTS Optimax Saltwater	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL DTX Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax	2006	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax	2007	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax	2008	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax	2009	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax	2010	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax Saltwater	2000	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax Saltwater	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax Saltwater	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax Saltwater	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax Saltwater	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Optimax Saltwater	2005	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL OS Optimax	1998	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Saltwater EFI	2001	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Saltwater EFI	2002	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Saltwater EFI	2003	225HP
MERCURY MARINE	Engines - Marine Outboard	225XXL Saltwater EFI	2004	225HP
MERCURY MARINE	Engines - Marine Outboard	250 Optimax Pro XS	2007	250HP
MERCURY MARINE	Engines - Marine Outboard	250 Optimax Pro XS	2010	250HP
MERCURY MARINE	Engines - Marine Outboard	250 Optimax Pro XS	2011	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Optimax	2009	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Optimax	2010	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Optimax	2011	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Optimax	2012	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Optimax	2013	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Optimax	2014	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Saltwater EFI	2001	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Saltwater EFI	2002	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Saltwater EFI	2003	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXL Saltwater EFI	2004	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Optimax	2009	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Optimax	2010	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Optimax	2011	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Optimax	2012	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Optimax	2013	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Optimax	2014	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Saltwater EFI	2001	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Saltwater EFI	2002	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Saltwater EFI	2003	250HP
MERCURY MARINE	Engines - Marine Outboard	250CXXL Saltwater EFI	2004	250HP
MERCURY MARINE	Engines - Marine Outboard	250L Optimax Pro XS	2012	250HP
MERCURY MARINE	Engines - Marine Outboard	250L Optimax Pro XS	2013	250HP
MERCURY MARINE	Engines - Marine Outboard	250L Optimax Pro XS	2014	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax	2009	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax	2010	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax	2011	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax	2012	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax	2013	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax	2014	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax Pro XS	2008	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax Pro XS	2009	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax Pro XS	2010	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax Pro XS	2011	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax Pro XS	2012	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax Pro XS	2013	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Optimax Pro XS	2014	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Saltwater EFI	2001	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Saltwater EFI	2002	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Saltwater EFI	2003	250HP
MERCURY MARINE	Engines - Marine Outboard	250XL Saltwater EFI	2004	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS CL Racing	2005	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS CXL Racing	2006	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS CXL Racing	2007	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS CXL Racing	2008	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS CXL Racing	2009	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS Racing	2010	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS Racing	2011	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS Racing	2012	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS Racing	2013	250HP
MERCURY MARINE	Engines - Marine Outboard	250XS Racing	2014	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Optimax	2009	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Optimax	2010	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Optimax	2011	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Optimax	2012	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Optimax	2013	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Optimax	2014	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Saltwater EFI	2001	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Saltwater EFI	2002	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Saltwater EFI	2003	250HP
MERCURY MARINE	Engines - Marine Outboard	250XXL Saltwater EFI	2004	250HP
MERCURY MARINE	Engines - Marine Outboard	300X CL Promax Racing	2005	300HP
MERCURY MARINE	Engines - Marine Outboard	300XS CXL Optimax Racing	2007	300HP
MERCURY MARINE	Engines - Marine Outboard	300XS CXL Optimax Racing	2008	300HP
MERCURY MARINE	Engines - Marine Outboard	300XS CXL Optimax Racing	2009	300HP
MERCURY MARINE	Engines - Marine Outboard	300XS CXL Optimax Racing	2010	300HP
MERCURY MARINE	Engines - Marine Outboard	300XS CXL Optimax Racing	2011	300HP
MERCURY MARINE	Engines - Marine Outboard	300XS CXL Optimax Racing	2012	300HP
MERCURY MARINE	Engines - Marine Outboard	300XS CXL Optimax Racing	2013	300HP
MERCURY MARINE	Engines - Marine Outboard	300XS CXL Optimax Racing	2014	300HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2005	75HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2006	75HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2007	75HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2008	75HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2009	75HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2010	75HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2011	75HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2012	75HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2013	75HP
MERCURY MARINE	Engines - Marine Outboard	75ELPT Optimax	2014	75HP
MERCURY MARINE	Engines - Marine Outboard	90ELPT Optimax	2006	90HP
MERCURY MARINE	Engines - Marine Outboard	90ELPT Optimax	2007	90HP
MERCURY MARINE	Engines - Marine Outboard	90ELPT Optimax	2008	90HP
MERCURY MARINE	Engines - Marine Outboard	90ELPT Optimax	2009	90HP
MERCURY MARINE	Engines - Marine Outboard	90ELPT Optimax	2010	90HP
MERCURY MARINE	Engines - Marine Outboard	90ELPT Optimax	2011	90HP
MERCURY MARINE	Engines - Marine Outboard	90ELPT Optimax	2012	90HP
MERCURY MARINE	Engines - Marine Outboard	90ELPT Optimax	2013	90HP
MERCURY MARINE	Engines - Marine Outboard	90ELPT Optimax	2014	90HP
MERCURY MARINE	Engines - Marine Outboard	90EXLPT Optimax	2006	90HP
MERCURY MARINE	Engines - Marine Outboard	90EXLPT Optimax	2007	90HP
MERCURY MARINE	Engines - Marine Outboard	90EXLPT Optimax	2008	90HP
MERCURY MARINE	Engines - Marine Outboard	90EXLPT Optimax	2009	90HP
MERCURY MARINE	Engines - Marine Outboard	90EXLPT Optimax	2010	90HP
MERCURY MARINE	Engines - Marine Outboard	90EXLPT Optimax	2011	90HP
MERCURY MARINE	Engines - Marine Outboard	90EXLPT Optimax	2012	90HP
MERCURY MARINE	Engines - Marine Outboard	90EXLPT Optimax	2013	90HP
MERCURY MARINE	Engines - Marine Outboard	90EXLPT Optimax	2014	90HP

Replaces These Part Numbers

ARROWHEAD	ADR0318, 400-12303
ARCO MARINE	20850
DELCO	19020704, 19020707
DIXIE	A-1666
EMP PARTS	4-6455
EMS	8471N
FAMILY	5SI
J&N Electrical Products	400-12155, 400-12303
LESTER	8471
MALLORY	9-19201
MERCURY MARINE	875286A1, 875286T, 881247A1, 889956
MES MOTORCYCLE & MARINE	3201M
MINNPAR	47-2961
MP PARTS	4-6455
PIC	240-6318
RCP	42950
SIERRA MARINE	18-6455
WAI	1-2486-01DR
WILSON SMALL ENGINE	70-01-8471
WILSON	90-01-4430

Frequently Asked Questions

Q: Do I need a larger charge wire for a High Output unit?
A: The high amp unit will operate better than stock, but not to its full potential without a larger charge wire. It’s the same reason firetrucks do not use garden hoses. It is IMPARATIVE to have proper charge and ground cables.

Q: Does a High Amp unit cause any damage to my battery or my vehicles charging system?
A: As long as it is installed properly with battery in good condition, then no. A High Output unit works exactly like a factory unit and only produces what is being demanded. No alternator works continuously at full output. Higher amperage is not bad and will not hurt a battery, but high voltage will blow one up.

Q: Will aftermarket underdrive pulleys (crankshaft power pulley) have any effect on my alternator?
A: Yes, underdrive crankshaft pulleys slow all the components (power steering, a/c, and alternator) to provide more power to the rear wheels. In some cases, the charging systems will fall totally on the battery at idle and completely stop charging.

Q: Where is the best place to get a voltage reading of the alternator output?
A: You’ll get the most accurate voltage reading from the back of the alternator at the main charge post that runs directly to the battery. This must be done while the vehicle is running.

Q: Why is the pulley on a high amp alternator smaller than my stock pulley?
A: The smaller pulley advances the power curve of the alternator just slightly, which produces a little more amperage around the idle if needed.

Q: Will I need a smaller belt for my high amp unit?
A: This varies by application because not all belts and belt tensioners are in the same condition. The tensioner will always tell you if you need a new belt or not. If it’s in range, you will not. If it is out, you will. Generally, you will need a belt that is one inch shorter than stock. You should have no problem finding a replacement wherever you buy your parts. V belt applications simply re-adjust your belt tensions to 3/8” deflection.

Q: What is the difference between a one wire, self-exciting and a self-energizing regulator?
A: Nothing. They are all exactly the same. Different manufacturers use different terms for marketing. The only wire to hook up is the charge wire to the battery. This does require modification for the alternator charge light on the dash.

Q: My stock unit used a five-groove pulley, and you sent my high amp alternator with a 6 groove. Why and what can I do?
A: 5 groove overdrive pullies are not produced. Install the belt on the back groove of the pulley closest to the fan or body of the alternator. The fan is internal, and this application will work just fine.

Q: Can your alternator be run in dual or triple alternator applications?
A: Yes. When wired and mounted correctly, the alternator can run in either dual or triple applications.

Q: Will I need a new battery with a high amp alternator?
A: If your battery is in good condition, and in spec of its OEM rating, then no. Your battery should work equally well with either the OEM and a High Amp unit.

Customer Reviews

WARNING: California’s Proposition 65

Alternator for Mercury Marine 115ELPT OptiMax 2004-2014 9-19201 400-12303

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