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Powerhouse Supply

12V Starter for Harley Davidson XL1200C Sportster 1200 Custom, XLH1000 and Buell 1981-2020

Replaces OEM: 128000-8450, 128000-8452, 128000-8453, 31390-86, 31533-81

12V Starter for Harley Davidson XL1200C Sportster 1200 Custom, XLH1000 and Buell 1981-2020

Regular price $98.99 USD
Regular price Sale price $98.99 USD
Sale Sold out

In stock.Free shipping. Arrives in 2 to 5 business days.

  • Texas 42
  • Tennessee 86
  • Minnesota 42
  • Mississippi 36
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Confirm this part fits before you order.

Compatibility and OEM references are a guide, not a guarantee for your specific machine. Once an electrical part has been installed or used it cannot be returned, and a standard return costs you the return shipping plus a 20 percent restocking fee.

Ask us to confirm Return policy

⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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New 12 volt OSGR starter for Harley Davidson, Buell and Buell Street Motorcycle applications. Rated 1.4 kW. Direct replacement for the part numbers in the cross reference list. Ships from USA. Power on the first turn.

Specifications

Design OSGR
Voltage 12V
Power Rating 1.4KW
Design family Denso RA style
Rotation Clockwise
Starter type Offset Gear Reduction (OSGR)
Tooth quantity 9
Drive gear OD 1.122" / 28.500mm
Overall length 156 mm / 6.142"
Mount hole 1 size 3/8-24
Mount hole 1 type Threaded
Mount hole 2 size 3/8-24
Mount hole 2 type Threaded
Registry OD 2.157" / 54.800mm
Mounting ear distance 1 3.150" / 80mm

Vehicle applications (74)

Make Model Year Engine
Buell Blast 2000-2009 492cc
Buell M2 Cyclone 1997-2002 1202cc
Buell M2L Cyclone 2002 1202cc
Buell RR1000 1987 1000cc
Buell S1 1998 White Lightning 1202cc
Buell S1 Lightning 1996-1998 1202cc
Buell S2 Thunderbolt 1995-1996 1202cc
Buell S2T Thunderbolt 1996 1202cc
Buell S3 Thunderbolt 1997-2001 1202cc
Buell X1 Lightning 1999-2002 1202cc
Buell X1W 2002 White Lightning 1203cc
Buell XB12R Firebolt 2004-2009 1202cc
Buell XB12R Firebolt 2010 1203cc
Buell XB12S Lightning 2004-2008 1202cc
Buell XB9R Firebolt 2002-2007 984cc
Buell XB9S Lightning 2003-2004 984cc
Buell Street Motorcycle Blast 2000-2009 492cc
Buell Street Motorcycle M2 Cyclone 1997-2002 1202cc
Buell Street Motorcycle M2L Cyclone 2002 1202cc
Buell Street Motorcycle RR1000 1987 1000cc
Buell Street Motorcycle S1 1998 White Lightning 1202cc
Buell Street Motorcycle S1 Lightning 1996-1998 1202cc
Buell Street Motorcycle S2 Thunderbolt 1995-1996 1202cc
Buell Street Motorcycle S2T Thunderbolt 1996 1202cc
Buell Street Motorcycle S3 Thunderbolt 1997-2001 1202cc

... and 49 more applications. Contact us to confirm your vehicle.

Reference numbers (7)

Denso 128000-8450, 128000-8452, 128000-8453
Harley Davidson 31390-86, 31533-81
Lester 18477
WAI 18477N

Cross reference numbers are shown for compatibility only. All brand names are the property of their respective owners.

Common questions about this starter

What voltage is this starter?

This one is 12V. Voltage has to match your machine exactly. A 12V unit on a 24V system will be damaged, and a 24V unit on a 12V system will crank slowly or not at all. If you are unsure, check the battery setup: two 12V batteries wired in series usually means a 24V system.

How do I know it fits my machine?

We list 37 vehicle and equipment applications for this starter. Use the "Does it fit?" checker further up this page to pick your make, model and year, or open the full applications list.

The surest check is the number stamped on the unit you are replacing. Match it against the cross reference numbers on this page. Fitment lists are a guide, and the same machine can leave the factory with more than one setup, so the number on your old part beats a model year every time.

My old part has a different number on it. Is this still right?

Probably yes. One unit is sold under many numbers by the vehicle maker, the original manufacturer and the aftermarket. The cross reference list on this page shows the numbers we know map to this starter. If yours appears there, this is the right part.

If your number is not listed, try our cross reference lookup. It searches every number we hold, not just the ones shown here.

What is the 18477 number?

18477 is the Lester number. Lester is the long standing industry catalogue for rotating electrical, and its numbers are how the trade identifies a unit regardless of who sold it. We use it as our part number because it is the one identifier that stays stable across every brand that has ever boxed this starter.

Is it the starter or the solenoid?

One loud click and no crank usually points at the solenoid or the battery connection. Rapid clicking is nearly always a flat battery or a bad ground, not the starter. A whirring noise with no engine turning means the drive gear is not engaging. Silence with good battery voltage points at the ignition switch, a relay or the starter itself.

Before replacing anything, load test the battery and clean both cable ends. A poor ground imitates a failed starter closely enough to sell a lot of unnecessary parts.

What is tooth count and why does it matter?

The tooth count is the number of teeth on the drive gear that meets the engine flywheel. It has to match the flywheel it engages. A starter that is otherwise identical but carries a different tooth count will not mesh correctly and will chew the ring gear.

Count the teeth on your old drive gear if you are unsure. Our glossary explains the rest of the spec vocabulary.

What does gear reduction mean?

A gear reduction starter puts a small gearbox between the motor and the drive. It spins a smaller, lighter motor faster and gears it down for torque, so you get more cranking power for less weight and less current draw. Direct drive starters skip the gearbox and are simpler but heavier for the same output.

The two are not interchangeable by eye. Match the mounting and the part number, not the look.

Is this new or remanufactured?

New. Every starter we list is a new unit, not a rebuilt core, and it carries a one year warranty. There is no core to return and no deposit to chase.

How fast does it ship?

Orders leave within three business days. Ships from USA. You can read the full terms in our shipping policy, and returns are covered in the return and refund policy.

What if I order the wrong part?

Returns are accepted within the window set out in our return and refund policy,and a restocking fee applies unless the part is defective or we made the error. A unit that has been installed or used cannot be returned, so it is worth confirming fitment by part number before you fit it.