Alternator for Mitsubishi IR/EF 12-Volt 50 Amp ARCO Marine 86050
Alternator for Mitsubishi IR/EF 12-Volt 50 Amp ARCO Marine 86050
Alternator for Mitsubishi IR/EF 12-Volt 50 Amp ARCO Marine 86050
Alternator for Mitsubishi IR/EF 12-Volt 50 Amp ARCO Marine 86050
Alternator for Mitsubishi IR/EF 12-Volt 50 Amp ARCO Marine 86050
Alternator for Mitsubishi IR/EF 12-Volt 50 Amp ARCO Marine 86050
Alternator for Mitsubishi IR/EF 12-Volt 50 Amp ARCO Marine 86050

Alternator for Mitsubishi IR/EF 12-Volt 50 Amp ARCO Marine 86050

Item #: 400-48017

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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.

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DB Electrical marine alternators excel for powering watercrafts.
  • 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
  • Plated fans, pulleys and hardware protect against rust-producing dampness
  • Marine alternators meet SAEJ1171 certification for use on boats and jet skis
  • Factory direct, money-saving pricing keeps more money in your pocket
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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

DB Electrical Alternators
DB Electrical keeps watercrafts moving forward with quality aftermarket alternators. 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.
  • Corrosion Resistance – Plated fans, pulleys and hardware offer protection against rust-producing dampness.
  • Flame Arrestor Screens – Where applicable, alternators come with these screens to meet Marine SAEJ1171 Certification as laid out by the SAE.
  • 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: 400-48017

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Voltage12
RotationCW
DimensionReplacement Unit:, B+ Terminal: M5x0.8,
Amperage50
Pulley ClassV1
RegulatorIR
Fan TypeEF
FitsMitsubishi Motors
Used on: Mitsubishi Motors: All L2E, L3E Inboard w/L2E-62WM: 1982-On K3M Inboard w/ K3M-61EM: 1982-On K4E Inboard w/K4E-61DM, K4E-61EM: 1982-On K4F w/K4F-61WM, K4F-62WM: Also Used on Westerbeke Generator Sets

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
MITSUBISHIInboardK3MAllK3M-61EM
MITSUBISHIInboardK4EAllK4E-61DM
MITSUBISHIInboardK4EAllK4E-61EM
MITSUBISHIInboardK4FAllK4F-61WM
MITSUBISHIInboardK4FAllK4F-62WM
MITSUBISHIInboardL2EAllL2E-62WM
MITSUBISHIInboardL3EAllL3E-62WM
WESTERBEKEGenerator Set10.0 BTD19873 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19883 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19893 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19903 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19913 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19923 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19933 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19943 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19953 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19963 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19973 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19983 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD19993 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set10.0 BTD20003 Cyl. 68CI 1.1L
WESTERBEKEGenerator Set11.0 BTD19874 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19884 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19894 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19904 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19914 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19924 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19934 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19944 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19954 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19964 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19974 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19984 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD19994 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD20004 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 BTD20014 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 WMD19804 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 WMD19814 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 WMD19824 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 WMD19834 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 WMD19844 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 WMD19854 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 WMD19864 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set11.0 WMD19874 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set12.5 BTD19874 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTD19884 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19884 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19894 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19904 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19914 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19924 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19934 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19944 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19954 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19964 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19974 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19984 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA19994 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 BTDA20004 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 WMD19804 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 WMD19814 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 WMD19824 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 WMD19834 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 WMD19844 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 WMD19854 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 WMD19864 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set12.5 WMD19874 Cyl. 91CI 1.5L
WESTERBEKEGenerator Set15.0 BTD19874 Cyl. 128CI 2.1L
WESTERBEKEGenerator Set15.0 BTD19884 Cyl. 128CI 2.1L
WESTERBEKEGenerator Set15.0 BTD19894 Cyl. 128CI 2.1L
WESTERBEKEGenerator Set15.0 BTD19904 Cyl. 128CI 2.1L
WESTERBEKEGenerator Set4.4 BCD19862 Cyl. 37CI 0.6L
WESTERBEKEGenerator Set4.4 BCD19872 Cyl. 37CI 0.6L
WESTERBEKEGenerator Set4.4 BCD19882 Cyl. 37CI 0.6L
WESTERBEKEGenerator Set4.4 BCD19892 Cyl. 37CI 0.6L
WESTERBEKEGenerator Set6.0 BCD19863 Cyl. 47CI 0.8L
WESTERBEKEGenerator Set6.0 BCD19873 Cyl. 47CI 0.8L
WESTERBEKEGenerator Set6.0 BCD19883 Cyl. 47CI 0.8L
WESTERBEKEGenerator Set6.0 BCD19893 Cyl. 47CI 0.8L
WESTERBEKEGenerator Set7.7 WMD19803 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set7.7 WMD19813 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set7.7 WMD19823 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set7.7 WMD19833 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set7.7 WMD19843 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19843 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19853 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19863 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19873 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19883 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19893 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19903 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19913 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19923 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19933 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19943 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19953 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19963 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19973 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19983 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD19993 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTD20003 Cyl. 60CI 1.0L
WESTERBEKEGenerator Set8.0 BTDA20003 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set8.0 BTDA20013 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set8.0 BTDA20023 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set8.0 BTDA20033 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set8.0 BTDA20043 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set8.0 BTDA20053 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set8.0 BTDA20063 Cyl. 80CI 1.3L
WESTERBEKEGenerator Set8.0 BTDA20073 Cyl. 80CI 1.3L

Replaces These Part Numbers

ARCO MARINE86050
ARROWHEADAMT0262, A2T25271
J&N Electrical Products400-48017
LESTER20061
MITSUBISHIA2T25271
MITSUBISHI INDUSTRIALMM409650
QUICKSILVER8M6007495
WESTERBEKE30594, 49246

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

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