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Parts that go with it

Rebuilding instead of replacing? These are the parts for this unit.

Powerhouse Supply

12V Denso Style Starter for Isuzu, Chevrolet, GMC, Elgin Sweeper 1984-2005

Replaces OEM: 128000-0490, 128000-0491, 128000-0492, 128000-0494, 94039465

Engines: Isuzu 6BG1, 6BD1, 4BD2, 4BD1

12V Denso Style Starter for Isuzu, Chevrolet, GMC, Elgin Sweeper 1984-2005

Regular price $185.99 USD
Regular price Sale price $185.99 USD
Sale Sold out

In stock.Ships today when you order by 3 PM ET (2 PM CT), Monday to Friday. Free Standard delivery in 2 to 5 business days, or choose Next Day or 2 Day at checkout.

  • Texas 5
  • Tennessee 12
  • Minnesota 5
  • Mississippi 16
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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 Isuzu, Chevrolet and GMC applications. Rated 3.0 kW with 11 tooth pinion, clockwise rotation, open nose cone and flange mount with 3 bolt holes. 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 3.0KW
Rotation CLOCKWISE
Tooth Quantity 11
Mounting Bolt Hole Quantity 3
Mounting Type FLANGE
Nose Cone Type OPEN NOSE
Design family Denso R style
Starter type Offset Gear Reduction (OSGR)
Drive gear OD 1.575" / 40mm
Mount hole 1 size 13mm
Mount hole 1 type Unthreaded
Mount hole 2 type Unthreaded
Mount hole 3 size 13mm
Mount hole 3 type Unthreaded

Vehicle applications (41)

Make Model Year Engine
Chevrolet P30 1990-1991 L4 3.9L 239cid
Chevrolet Tiltmaster W5 1984-1994 6.5L
Chevrolet Tiltmaster W6 1984-1993 5.8L
Chevrolet Tiltmaster W7 1984-1993 5.8L
Chevrolet W3500 Tiltmaster 1995-1997 L4 3.9L 236cid Isuzu 4BD2
Chevrolet W4500 Tiltmaster 1986-1991 L4 3.9L 236cid Isuzu 4BD1
Chevrolet W4500 Tiltmaster 1992-1997 L4 3.9L 236cid Isuzu 4BD2
Chevrolet W5500 Tiltmaster 1988-1994 L6 6.5L 396cid Isuzu 6BG1
Chevrolet W6500 Tiltmaster 1987-1991 L6 5.8L 353cid Isuzu 6BD1
Chevrolet W6500 Tiltmaster 1988-1989 L6 6.5L 396cid Isuzu 6BG1
Chevrolet W6500 Tiltmaster 1992-1994 L6 6.5L 396cid Isuzu 6BG1
Chevrolet W7500 Tiltmaster 1984-1991 L6 5.8L 353cid Isuzu 6BD1
Chevrolet W7500 Tiltmaster 1989-1994 L6 6.5L 396cid Isuzu 6BG1
Elgin Sweeper All Models 6BD1T 1989-1993 Isuzu Diesel
GMC P3500 1989-1991 L4 3.9L 239cid
GMC Tiltmaster W4 1986-1994 3.9L
GMC Tiltmaster W5 1984-1994 6.5L
GMC Tiltmaster W6 1984-1993 5.8L
GMC Tiltmaster W7 1984-1993 5.8L
GMC W3500 Forward 1995-1997 L4 3.9L 236cid Isuzu 4BD2
GMC W4500 Forward 1992-1997 L4 3.9L 236cid Isuzu 4BD2
GMC W5500 Forward 1988-1994 L6 6.5L 396cid Isuzu 6BG1
GMC W6500 Forward 1987-1991 L6 5.8L 353cid Isuzu 6BD1
GMC W6500 Forward 1988-1989 L6 6.5L 396cid Isuzu 6BG1
GMC W6500 Forward 1992-1994 L6 6.5L 396cid Isuzu 6BG1

... and 16 more applications. Contact us to confirm your vehicle.

Reference numbers (12)

Denso 128000-0490, 128000-0491, 128000-0492, 128000-0494
GM 94039465, 94052175
Isuzu 1811002340, 1811002341, 2912559020, 8971197490
Lester 16881
WAI 16881N

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

Parts that go with it

Rebuilding instead of replacing? These are the parts for this unit.

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.

Which way does it rotate?

This unit turns clockwise. Rotation is read looking at the drive end, the end the pulley or gear sits on. A starter that spins the wrong way cannot engage the flywheel, so this is not a detail you can work around.

How do I know it fits my machine?

We list 17 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 16881 number?

16881 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.

Also fits this machine

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