Alternator for BMW Motorcycle K1100LT 1993-1999 K1100RS 1993-1996
Alternator for BMW Motorcycle K1100LT 1993-1999 K1100RS 1993-1996
Alternator for BMW Motorcycle K1100LT 1993-1999 K1100RS 1993-1996
Alternator for BMW Motorcycle K1100LT 1993-1999 K1100RS 1993-1996
Alternator for BMW Motorcycle K1100LT 1993-1999 K1100RS 1993-1996
Alternator for BMW Motorcycle K1100LT 1993-1999 K1100RS 1993-1996
Alternator for BMW Motorcycle K1100LT 1993-1999 K1100RS 1993-1996

Alternator for BMW Motorcycle K1100LT 1993-1999 K1100RS 1993-1996

Item #: 400-24131

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
  • Satisifed customers recently purchased: 2000 BMW R1100R; 1998 BMW R1200C; 1997 BMW R1200C Classic; 1997 BMW R1100RT
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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: 400-24131

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Part TypeUNIT
Voltage12
Amperage50
RegulatorIR
Fan TypeIF
FitsBMW MOTORCYCLES 1989-07
4-GROOVE PULLEY

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
BMWMotorcycleK1100LT19931100cc
BMWMotorcycleK1100LT19941100cc
BMWMotorcycleK1100LT19951100cc
BMWMotorcycleK1100LT19961100cc
BMWMotorcycleK1100LT19971100cc
BMWMotorcycleK1100LT19981100cc
BMWMotorcycleK1100LT19991100cc
BMWMotorcycleK1100RS19931100cc
BMWMotorcycleK1100RS19941100cc
BMWMotorcycleK1100RS19951100cc
BMWMotorcycleK1100RS19961100cc
BMWMotorcycleK751986751cc
BMWMotorcycleK751987751cc
BMWMotorcycleK751988751cc
BMWMotorcycleK751989751cc
BMWMotorcycleK75C1986751cc
BMWMotorcycleK75C1987751cc
BMWMotorcycleK75C1988751cc
BMWMotorcycleK75C1989751cc
BMWMotorcycleK75C1990751cc
BMWMotorcycleK75RT1990751cc
BMWMotorcycleK75RT1991751cc
BMWMotorcycleK75RT1992751cc
BMWMotorcycleK75RT1993751cc
BMWMotorcycleK75RT1994751cc
BMWMotorcycleK75RT1995751cc
BMWMotorcycleK75RT1996751cc
BMWMotorcycleR1100GS19941085cc
BMWMotorcycleR1100GS19951085cc
BMWMotorcycleR1100GS19961085cc
BMWMotorcycleR1100GS19971085cc
BMWMotorcycleR1100GS19981085cc
BMWMotorcycleR1100GS19991085cc
BMWMotorcycleR1100R19941085cc
BMWMotorcycleR1100R19951085cc
BMWMotorcycleR1100R19961085cc
BMWMotorcycleR1100R19971085cc
BMWMotorcycleR1100R19981085cc
BMWMotorcycleR1100R19991085cc
BMWMotorcycleR1100R20001085cc
BMWMotorcycleR1100R20011085cc
BMWMotorcycleR1100RS19921085cc
BMWMotorcycleR1100RS19931085cc
BMWMotorcycleR1100RS19941085cc
BMWMotorcycleR1100RS19951085cc
BMWMotorcycleR1100RS19961085cc
BMWMotorcycleR1100RS19971085cc
BMWMotorcycleR1100RS19981085cc
BMWMotorcycleR1100RS19991085cc
BMWMotorcycleR1100RS20001085cc
BMWMotorcycleR1100RS20011085cc
BMWMotorcycleR1100RT19941085cc
BMWMotorcycleR1100RT19951085cc
BMWMotorcycleR1100RT19961085cc
BMWMotorcycleR1100RT19971085cc
BMWMotorcycleR1100RT19981085cc
BMWMotorcycleR1100RT19991085cc
BMWMotorcycleR1100RT20001085cc
BMWMotorcycleR1100RT20011085cc
BMWMotorcycleR1100S19971085cc
BMWMotorcycleR1100S19981085cc
BMWMotorcycleR1100S19991085cc
BMWMotorcycleR1100S20001085cc
BMWMotorcycleR1100S20011085cc
BMWMotorcycleR1100S20021085cc
BMWMotorcycleR1100S20031085cc
BMWMotorcycleR1100S20041085cc
BMWMotorcycleR1100S20051085cc
BMWMotorcycleR1150GS19991130cc
BMWMotorcycleR1150GS20001130cc
BMWMotorcycleR1150GS20011130cc
BMWMotorcycleR1150GS20021130cc
BMWMotorcycleR1150GS20031130cc
BMWMotorcycleR1150GS20041130cc
BMWMotorcycleR1150GS Adventure20011130cc
BMWMotorcycleR1150GS Adventure20021130cc
BMWMotorcycleR1150GS Adventure20031130cc
BMWMotorcycleR1150GS Adventure20041130cc
BMWMotorcycleR1150GS Adventure20051130cc
BMWMotorcycleR1150R20001130cc
BMWMotorcycleR1150R20011130cc
BMWMotorcycleR1150R20021130cc
BMWMotorcycleR1150R20031130cc
BMWMotorcycleR1150R20041130cc
BMWMotorcycleR1150R20051130cc
BMWMotorcycleR1150R20061130cc
BMWMotorcycleR1150R Rockster20021130cc
BMWMotorcycleR1150R Rockster20031130cc
BMWMotorcycleR1150R Rockster20041130cc
BMWMotorcycleR1150R Rockster20051130cc
BMWMotorcycleR1150RS20001130cc
BMWMotorcycleR1150RS20011130cc
BMWMotorcycleR1150RS20021130cc
BMWMotorcycleR1150RS20031130cc
BMWMotorcycleR1150RS20041130cc
BMWMotorcycleR1150RT20001130cc
BMWMotorcycleR1150RT20011130cc
BMWMotorcycleR1150RT20021130cc
BMWMotorcycleR1150RT20031130cc
BMWMotorcycleR1150RT20041130cc
BMWMotorcycleR1150RT20051130cc
BMWMotorcycleR1150RT20061130cc
BMWMotorcycleR1200C Classic19961170cc
BMWMotorcycleR1200C Classic19971170cc
BMWMotorcycleR1200C Classic19981170cc
BMWMotorcycleR1200C Classic19991170cc
BMWMotorcycleR1200C Classic20001170cc
BMWMotorcycleR1200C Classic20011170cc
BMWMotorcycleR1200C Classic20021170cc
BMWMotorcycleR1200C Classic20031170cc
BMWMotorcycleR1200C Independent20001170cc
BMWMotorcycleR1200C Independent20011170cc
BMWMotorcycleR1200C Independent20021170cc
BMWMotorcycleR1200C Independent20031170cc
BMWMotorcycleR850C1997848cc
BMWMotorcycleR850C1998848cc
BMWMotorcycleR850C1999848cc
BMWMotorcycleR850C2000848cc
BMWMotorcycleR850GS1997848cc
BMWMotorcycleR850GS1998848cc
BMWMotorcycleR850GS1999848cc
BMWMotorcycleR850GS2000848cc
BMWMotorcycleR850R1994848cc
BMWMotorcycleR850R1995848cc
BMWMotorcycleR850R1996848cc
BMWMotorcycleR850R1997848cc
BMWMotorcycleR850R1998848cc
BMWMotorcycleR850R1999848cc
BMWMotorcycleR850R2000848cc
BMWMotorcycleR850R2001848cc
BMWMotorcycleR850R2002848cc
BMWMotorcycleR850R2003848cc
BMWMotorcycleR850R2004848cc
BMWMotorcycleR850R2005848cc
BMWMotorcycleR850R2006848cc
BMWMotorcycleR850R2007848cc
BMWMotorcycleR850RT1996848cc
BMWMotorcycleR850RT1997848cc
BMWMotorcycleR850RT1998848cc
BMWMotorcycleR850RT1999848cc
BMWMotorcycleR850RT2000848cc
BMWMotorcycleR850RT2001848cc
BMWMotorcycleR850RT2002848cc
BMWMotorcycleR850RT2003848cc
BMWMotorcycleR850RT2004848cc
BMWMotorcycleR850RT2005848cc
BMWMotorcycleR850RT2006848cc

Replaces These Part Numbers

ARROWHEADABO0364, 400-24131
ARROWHEADB0123105001
BMW12-31-2-306-020
BOSCH0-123-105-001
LESTER12494

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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