Engine starter motors currently listed
The references below are separate parts, even when the name and appearance are similar. Check the forklift brand, the number on the part or package, and the product photo before requesting a quotation.
If the part number is missing, send the forklift model, nameplate and clear photos of the old part. Our parts team will identify the checks still needed before quotation.
Forklift engine electrical guide
Forklift Starter Motors: Engine References and No-Crank Diagnosis
A starter motor must match the engine flywheel housing, ring gear, voltage, rotation, pinion and mounting. Engine family and exact reference are more reliable than forklift brand alone.

Xinchai 490 Starter
490B-51000Engine starter motorCheck reference
Isuzu 4JG2 Starter
807042-9972Engine starter motorCheck reference
C240 Engine Starter
C240PKJ-20-30Engine starter motorCheck referenceWhat must match
Voltage, rated output, rotation, pinion tooth count, nose length, mounting flange, terminal position and engine application must agree.
Where it works
The starter engages the engine ring gear and cranks the engine through the starting circuit. Cable condition and battery voltage directly affect its performance.
Why no-crank needs diagnosis
A failed start can come from the battery, cables, key switch, neutral switch, relay, wiring, engine seizure or starter. Test the circuit before ordering.
Symptoms and checks
| Single click | Check battery condition, voltage drop, terminals, earth path, relay and solenoid before replacing the complete starter. |
|---|---|
| Slow cranking | Measure voltage drop and battery performance; check cable size, connections, engine oil viscosity and mechanical resistance. |
| Starter spins but engine does not | Inspect pinion engagement, drive mechanism, tooth count, ring gear and nose dimensions. A similar motor with the wrong pinion is not suitable. |
| Repeated failure | Check over-cranking, heat, loose mounting, damaged ring gear, oil contamination and voltage mismatch. The underlying cause must be corrected. |
Electrical rule: disconnect and isolate the battery before starter removal, and follow the truck manual. High-current circuits can cause serious arcing and damage.
Genuine, rebuilt and aftermarket choices
Genuine or traceable OEM units are preferred when pinion geometry or engine application is uncertain. A professionally rebuilt starter should have traceable core identity and documented testing. An unverified low-cost unit can fit the flange yet use a different output, rotation or drive.
Prices differ with voltage, output, manufacturer, new or rebuilt condition, solenoid inclusion, warranty and freight weight. Compare identical specifications and condition.
Information required for a starter quotation
Send the engine model and serial information, starter label and number, voltage, forklift model, photos of mounting flange, pinion and terminals, tooth count when measurable and required quantity.
Verified forklift replacement part
490B-51000 Xinchai 490 Engine Starter Motor
Xinchai 490 Engine Starter Motor reference 490B-51000 is shown with an actual product photo to make identification easier.
Authpart checks the reference together with the available truck and component information before quotation. This helps prevent ordering a part that looks similar but cannot be installed or used correctly.
Verify This Part for My Forklift
Product overview
| Product | Xinchai 490 Engine Starter Motor |
|---|---|
| Reference / specification | 490B-51000 |
| System | Forklift engine system |
| Supply option | Brand and supply option stated clearly in our quotation |
| Application | Confirmed from the available truck and component information |
Why the correct match matters
Engine parts must match the engine model, mounting details and electrical or fluid connections. The same truck series may use different engines or component versions.
Reference first
We check 490B-51000 instead of quoting from a general description alone.
Truck confirmation
The model, serial number and component details help us confirm the correct version.
Visible order check
Reference labels and product condition can be photographed for confirmation before shipment.
Send what you have
Send the part number, nameplate or clear photos you have. Our parts team will check the reference against the truck details and tell you exactly what else is needed.
- Engine model and nameplate
- Part reference
- Connector, port or mounting photos
Continue your parts search
Use these actual product photos to open related forklift part pages.
Confirm 490B-51000 before you order
Send the reference, truck model or clear product photos. Authpart will check the details and explain the proposed supply option clearly.
Request a Verified Quote