Alternator for Mercury 857006T, 875285T1, 881248T, 889955, 19020703 400-12306
Alternator for Mercury 857006T, 875285T1, 881248T, 889955, 19020703 400-12306
Alternator for Mercury 857006T, 875285T1, 881248T, 889955, 19020703 400-12306
Alternator for Mercury 857006T, 875285T1, 881248T, 889955, 19020703 400-12306
Alternator for Mercury 857006T, 875285T1, 881248T, 889955, 19020703 400-12306

Alternator for Mercury 857006T, 875285T1, 881248T, 889955, 19020703 400-12306

Item #: 400-12306

30-DAY RETURN POLICY

If your order arrives and it’s not exactly what you want, you may return it within 30 days for a refund. We know that people sometimes order a part and then discover it’s not exactly the one they need for the repair. We understand and want to work with you. Just make sure the item is in its original packaging and in good condition free of damage.

When a returned product comes back to us, we’ll check it over to make sure it’s in ‘Like New’ condition and free from damage such as dents, scratches, cracks, abuse, defacement or indication of removed screws/fasteners or seals. Return processing may take up to 5 business days from the time your product is received by DB Electrical.

To return a product, simply click here to start the process.

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DB Electrical alternators are highly engineered for excellence in performance.
  • Built to Beat the Heat: High temperature epoxy and high temperature grease withstand extreme heat
  • Heavy-duty rectifiers and high-quality regulators enhance superior charging performance
  • Most alternators are supplied with final test results and performance curve
  • Direct-fit replacement and easy installation made possible with OEM fitment specifications
  • Factory direct, money-saving alternator typically priced substantially less than OEM counterparts
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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

DB Electrical Alternators
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: 400-12306

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Voltage12
Amperage50
RegulatorIR

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
MARINEREngines - Marine Outboard200 (DFI)AllAll
MARINEREngines - Marine Outboard225 (DFI)AllAll
MARINEREngines - Marine OutboardV-115 (DFI)AllGM 2.5L - 153ci - 4cyl
MARINEREngines - Marine OutboardV-135 (DFI)AllGM 2.5L - 153ci - 4cyl
MARINEREngines - Marine OutboardV-150 (DFI)AllGM 2.5L - 153ci - 4cyl
MARINEREngines - Marine OutboardV-175 (DFI)AllGM 2.5L - 153ci - 4cyl
MERCRUISEREngineModel 575SCI00-OnGM 8.2L - 502ci - 8cyl
MERCURY MARINEEngines - Marine Outboard115CXL Optimax Saltwater2000115HP
MERCURY MARINEEngines - Marine Outboard115L Optimax2000115HP
MERCURY MARINEEngines - Marine Outboard115L Optimax Saltwater2000115HP
MERCURY MARINEEngines - Marine Outboard115XL Optimax Saltwater2000115HP
MERCURY MARINEEngines - Marine Outboard135CXL Bluewater Optimax1999135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax2006135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax2007135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax2008135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax2009135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax2010135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax Saltwater2000135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax Saltwater2001135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax Saltwater2002135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax Saltwater2003135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax Saltwater2004135HP
MERCURY MARINEEngines - Marine Outboard135CXL Optimax Saltwater2005135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax1999135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2000135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2001135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2002135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2003135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2004135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2005135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2006135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2007135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2008135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2009135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2010135HP
MERCURY MARINEEngines - Marine Outboard135L Optimax2011135HP
MERCURY MARINEEngines - Marine Outboard135XL Bluewater Optimax1999135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2002135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2003135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2004135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2005135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2006135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2007135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2008135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2009135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2010135HP
MERCURY MARINEEngines - Marine Outboard135XL Optimax2011135HP
MERCURY MARINEEngines - Marine Outboard150CXL Bluewater Optimax1999150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax2006150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax2007150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax2008150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax2009150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax2010150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax2011150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax Saltwater2000150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax Saltwater2001150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax Saltwater2002150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax Saltwater2003150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax Saltwater2004150HP
MERCURY MARINEEngines - Marine Outboard150CXL Optimax Saltwater2005150HP
MERCURY MARINEEngines - Marine Outboard150CXL Saltwater EFI2003150HP
MERCURY MARINEEngines - Marine Outboard150CXL Saltwater EFI2004150HP
MERCURY MARINEEngines - Marine Outboard150CXL Saltwater EFI2005150HP
MERCURY MARINEEngines - Marine Outboard150L EFI2003150HP
MERCURY MARINEEngines - Marine Outboard150L EFI2004150HP
MERCURY MARINEEngines - Marine Outboard150L EFI2005150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax1999150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2000150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2001150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2002150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2003150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2004150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2005150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2006150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2007150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2008150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2009150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2010150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2011150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2012150HP
MERCURY MARINEEngines - Marine Outboard150L Optimax2013150HP
MERCURY MARINEEngines - Marine Outboard150L Pro XS Optimax2011150HP
MERCURY MARINEEngines - Marine Outboard150L Pro XS Optimax2012150HP
MERCURY MARINEEngines - Marine Outboard150L Pro XS Optimax2013150HP
MERCURY MARINEEngines - Marine Outboard150L Pro XS Optimax2014150HP
MERCURY MARINEEngines - Marine Outboard150L Saltwater EFI2003150HP
MERCURY MARINEEngines - Marine Outboard150L Saltwater EFI2004150HP
MERCURY MARINEEngines - Marine Outboard150L Saltwater EFI2005150HP
MERCURY MARINEEngines - Marine Outboard150XL Bluewater Optimax1999150HP
MERCURY MARINEEngines - Marine Outboard150XL EFI2006150HP
MERCURY MARINEEngines - Marine Outboard150XL EFI2007150HP
MERCURY MARINEEngines - Marine Outboard150XL EFI2008150HP
MERCURY MARINEEngines - Marine Outboard150XL EFI2009150HP
MERCURY MARINEEngines - Marine Outboard150XL EFI2010150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax2006150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax2007150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax2008150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax2009150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax2010150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax2011150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax2012150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax2013150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax Saltwater2000150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax Saltwater2001150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax Saltwater2002150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax Saltwater2003150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax Saltwater2004150HP
MERCURY MARINEEngines - Marine Outboard150XL Optimax Saltwater2005150HP
MERCURY MARINEEngines - Marine Outboard150XL Pro XS Optimax2011150HP
MERCURY MARINEEngines - Marine Outboard150XL Pro XS Optimax2012150HP
MERCURY MARINEEngines - Marine Outboard150XL Pro XS Optimax2013150HP
MERCURY MARINEEngines - Marine Outboard150XL Pro XS Optimax2014150HP
MERCURY MARINEEngines - Marine Outboard150XL Saltwater EFI2003150HP
MERCURY MARINEEngines - Marine Outboard150XL Saltwater EFI2004150HP
MERCURY MARINEEngines - Marine Outboard150XL Saltwater EFI2005150HP
MERCURY MARINEEngines - Marine Outboard175CXL Optimax2006175HP
MERCURY MARINEEngines - Marine Outboard175CXL Optimax2007175HP
MERCURY MARINEEngines - Marine Outboard175CXL Optimax2008175HP
MERCURY MARINEEngines - Marine Outboard175CXL Optimax2009175HP
MERCURY MARINEEngines - Marine Outboard175CXL Optimax2010175HP
MERCURY MARINEEngines - Marine Outboard175CXL Optimax Saltwater2003175HP
MERCURY MARINEEngines - Marine Outboard175CXL Optimax Saltwater2004175HP
MERCURY MARINEEngines - Marine Outboard175CXL Optimax Saltwater2005175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2001175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2002175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2003175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2004175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2005175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2006175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2007175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2008175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2009175HP
MERCURY MARINEEngines - Marine Outboard175L Optimax2010175HP
MERCURY MARINEEngines - Marine Outboard175L Pro XS Optimax2008175HP
MERCURY MARINEEngines - Marine Outboard175L Pro XS Optimax2009175HP
MERCURY MARINEEngines - Marine Outboard175L Pro XS Optimax2010175HP
MERCURY MARINEEngines - Marine Outboard175L Pro XS Optimax2011175HP
MERCURY MARINEEngines - Marine Outboard175L Pro XS Optimax2012175HP
MERCURY MARINEEngines - Marine Outboard175L Pro XS Optimax2013175HP
MERCURY MARINEEngines - Marine Outboard175L Pro XS Optimax2014175HP
MERCURY MARINEEngines - Marine Outboard175XL Optimax2002175HP
MERCURY MARINEEngines - Marine Outboard175XL Optimax2003175HP
MERCURY MARINEEngines - Marine Outboard175XL Optimax2004175HP
MERCURY MARINEEngines - Marine Outboard175XL Optimax2005175HP
MERCURY MARINEEngines - Marine Outboard175XL Optimax2006175HP
MERCURY MARINEEngines - Marine Outboard175XL Optimax2007175HP
MERCURY MARINEEngines - Marine Outboard175XL Optimax2008175HP
MERCURY MARINEEngines - Marine Outboard175XL Optimax2009175HP
MERCURY MARINEEngines - Marine Outboard175XL Optimax2010175HP
MERCURY MARINEEngines - Marine Outboard175XL Pro XS Optimax2008175HP
MERCURY MARINEEngines - Marine Outboard175XL Pro XS Optimax2009175HP
MERCURY MARINEEngines - Marine Outboard175XL Pro XS Optimax2010175HP
MERCURY MARINEEngines - Marine Outboard175XL Pro XS Optimax2011175HP
MERCURY MARINEEngines - Marine Outboard175XL Pro XS Optimax2012175HP
MERCURY MARINEEngines - Marine Outboard175XL Pro XS Optimax2013175HP
MERCURY MARINEEngines - Marine Outboard175XL Pro XS Optimax2014175HP
MERCURY MARINEEngines - Marine Outboard2.5 CL EFI Racing1998280HP
MERCURY MARINEEngines - Marine Outboard2.5 CL EFI Racing1999280HP
MERCURY MARINEEngines - Marine Outboard2.5 CL EFI Racing2000280HP
MERCURY MARINEEngines - Marine Outboard2.5 CL EFI Racing2005280HP
MERCURY MARINEEngines - Marine Outboard2.5 CS EFI Racing1998280HP
MERCURY MARINEEngines - Marine Outboard2.5 CS EFI Racing1999280HP
MERCURY MARINEEngines - Marine Outboard2.5 CS EFI Racing2000280HP
MERCURY MARINEEngines - Marine Outboard2.5 CS EFI Racing2005280HP
MERCURY MARINEEngines - Marine Outboard200CXL Bluewater EFI1999200HP
MERCURY MARINEEngines - Marine Outboard200CXL Saltwater EFI2000200HP
MERCURY MARINEEngines - Marine Outboard200CXL Saltwater EFI2001200HP
MERCURY MARINEEngines - Marine Outboard200CXL Saltwater EFI2002200HP
MERCURY MARINEEngines - Marine Outboard200CXL Saltwater EFI2003200HP
MERCURY MARINEEngines - Marine Outboard200CXL Saltwater EFI2004200HP
MERCURY MARINEEngines - Marine Outboard200CXL Saltwater EFI2005200HP
MERCURY MARINEEngines - Marine Outboard200L EFI1999200HP
MERCURY MARINEEngines - Marine Outboard200L EFI2000200HP
MERCURY MARINEEngines - Marine Outboard200L EFI2001200HP
MERCURY MARINEEngines - Marine Outboard200L EFI2002200HP
MERCURY MARINEEngines - Marine Outboard200L EFI2003200HP
MERCURY MARINEEngines - Marine Outboard200L EFI2004200HP
MERCURY MARINEEngines - Marine Outboard200L EFI2005200HP
MERCURY MARINEEngines - Marine Outboard200XL Bluewater EFI1999200HP
MERCURY MARINEEngines - Marine Outboard200XL Saltwater EFI2000200HP
MERCURY MARINEEngines - Marine Outboard200XL Saltwater EFI2001200HP
MERCURY MARINEEngines - Marine Outboard200XL Saltwater EFI2002200HP
MERCURY MARINEEngines - Marine Outboard200XL Saltwater EFI2003200HP
MERCURY MARINEEngines - Marine Outboard200XL Saltwater EFI2004200HP
MERCURY MARINEEngines - Marine Outboard200XL Saltwater EFI2005200HP
MERCURY MARINEEngines - Marine Outboard200XS CS Optimax Racing2005200HP
MERCURY MARINEEngines - Marine Outboard200XS L Optimax Racing2000200HP
MERCURY MARINEEngines - Marine Outboard200XS L SM Optimax Racing2005200HP
MERCURY MARINEEngines - Marine Outboard200XS SM LH 15 Optimax Racing2006200HP
MERCURY MARINEEngines - Marine Outboard200XS SS Optimax Racing2000200HP
MERCURY MARINEEngines - Marine Outboard200XS SS Optimax Racing2005200HP

Replaces These Part Numbers

ARROWHEADADR0310, 400-12306
ANDRE NIERMANN020706
ARCO MARINE20840
BARSANCO110-8470
DELCO19020703, 19020706
DIXIEA-1667
EMP PARTS4-6454
FAMILY5SI
J&N Electrical Products400-12154, 400-12306
LESTER8470
MALLORY9-19112
MERCURY MARINE857006T, 875285T1, 881248T, 889955, 889955A03
MES MOTORCYCLE & MARINE3200M
MINNPAR47-1982
MP PARTS4-6454
PIC240-6317
SIERRA MARINE18-6454
WAI1-2487-01DR
WILSON SMALL ENGINE70-01-8470
WILSON90-01-4429

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.

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