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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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
MitsubishiMarineK3M1982K3M-61EM
MitsubishiMarineK4E1982K4E-61DM
MitsubishiMarineK4E1982K4E-61EM
MitsubishiMarineK4F1982K4F-61WM
MitsubishiMarineK4F1982K4F-62WM
WesterbekeGenerator Set10.0 BTD198768cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD198868cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD198968cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199068cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199168cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199268cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199368cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199468cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199568cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199668cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199768cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199868cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD199968cu in 1.1L 3 cyl
WesterbekeGenerator Set10.0 BTD200068cu in 1.1L 3 cyl
WesterbekeGenerator Set11.0 BTD198780cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD198880cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD198980cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199080cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199180cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199280cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199380cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199480cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199580cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199680cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199780cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199880cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD199980cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD200080cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 BTD200180cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 WMD198080cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 WMD198180cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 WMD198280cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 WMD198380cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 WMD198480cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 WMD198580cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 WMD198680cu in 1.3L 4 cyl
WesterbekeGenerator Set11.0 WMD198780cu in 1.3L 4 cyl
WesterbekeGenerator Set12.5 BTD198791cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTD198891cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA198891cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA198991cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199091cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199191cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199291cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199391cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199491cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199591cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199691cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199791cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199891cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA199991cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 BTDA200091cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 WMD198091cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 WMD198191cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 WMD198291cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 WMD198391cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 WMD198491cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 WMD198591cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 WMD198691cu in 1.5L 4 cyl
WesterbekeGenerator Set12.5 WMD198791cu in 1.5L 4 cyl
WesterbekeGenerator Set15.0 BTD1987128cu in 2.1L 4 cyl
WesterbekeGenerator Set15.0 BTD1988128cu in 2.1L 4 cyl
WesterbekeGenerator Set15.0 BTD1989128cu in 2.1L 4 cyl
WesterbekeGenerator Set15.0 BTD1990128cu in 2.1L 4 cyl
WesterbekeGenerator Set4.4 BCD198637cu in 0.6L 2 cyl
WesterbekeGenerator Set4.4 BCD198737cu in 0.6L 2 cyl
WesterbekeGenerator Set4.4 BCD198837cu in 0.6L 2 cyl
WesterbekeGenerator Set4.4 BCD198937cu in 0.6L 2 cyl
WesterbekeGenerator Set6.0 BCD198647cu in 0.8L 3 cyl
WesterbekeGenerator Set6.0 BCD198747cu in 0.8L 3 cyl
WesterbekeGenerator Set6.0 BCD198847cu in 0.8L 3 cyl
WesterbekeGenerator Set6.0 BCD198947cu in 0.8L 3 cyl
WesterbekeGenerator Set7.7 WMD198060cu in 1.0L 3 cyl
WesterbekeGenerator Set7.7 WMD198160cu in 1.0L 3 cyl
WesterbekeGenerator Set7.7 WMD198260cu in 1.0L 3 cyl
WesterbekeGenerator Set7.7 WMD198360cu in 1.0L 3 cyl
WesterbekeGenerator Set7.7 WMD198460cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD198460cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD198560cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD198660cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD198760cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD198860cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD198960cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199060cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199160cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199260cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199360cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199460cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199560cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199660cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199760cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199860cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD199960cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTD200060cu in 1.0L 3 cyl
WesterbekeGenerator Set8.0 BTDA200080cu in 1.3L 3 cyl
WesterbekeGenerator Set8.0 BTDA200180cu in 1.3L 3 cyl
WesterbekeGenerator Set8.0 BTDA200280cu in 1.3L 3 cyl
WesterbekeGenerator Set8.0 BTDA200380cu in 1.3L 3 cyl
WesterbekeGenerator Set8.0 BTDA200480cu in 1.3L 3 cyl
WesterbekeGenerator Set8.0 BTDA200580cu in 1.3L 3 cyl
WesterbekeGenerator Set8.0 BTDA200680cu in 1.3L 3 cyl
WesterbekeGenerator Set8.0 BTDA200780cu in 1.3L 3 cyl

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.

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