12640381 Diesel Fuel Injector for Holden Colorado LWN 2.8L

12640381 Denso diesel fuel injector for Holden Colorado LWN 2.8L

The 12640381 Denso diesel fuel injector is supplied by Rayfuel as a new aftermarket replacement for selected Holden Colorado RG vehicles with the LWN 2.8L diesel engine. It cross-references Denso number 295050-0960 and is intended for number-matched common-rail fuel-system repair. Workshops and parts buyers can browse related products in our Denso common rail injector range.

This item is a Rayfuel aftermarket product for a Denso common-rail system. It is not described as a genuine Holden, GM or Denso boxed component. Final compatibility must be established from the complete number on the removed injector, vehicle identification, production specification and the physical connector and fuel-port layout.

Product Identification

• Primary part number: 12640381
• Denso cross-reference: 295050-0960
• Product type: Common rail diesel fuel injector assembly
• Injection system: Denso system
• Vehicle application: Selected Holden Colorado RG
• Engine application: LWN 2.8L diesel
• Product brand: Rayfuel

The OE number 12640381 is the primary identifier for this listing, while 295050-0960 is the supplied Denso cross-reference. Forms such as 2950500960 are punctuation variations. Similar-looking injectors and nearby number sequences can represent different calibration, emissions or production versions, so compare every character before purchase.

12640381 Denso diesel fuel injector application and fitment

This injector is listed for selected Holden Colorado RG vehicles using the LWN 2.8L common-rail diesel engine. Fitment may vary by production date, market, emissions system, engine calibration and part-number supersession. A vehicle model and engine displacement alone are not sufficient for final confirmation.

Compare 12640381 and 295050-0960 with the number on the removed injector or a reliable VIN-based parts record. Also inspect the electrical connector, high-pressure inlet, return connection, hold-down shape, body length and nozzle end. If the removed component carries another reference, confirm a documented interchange before ordering.

Injector Function and Performance

A common-rail injector meters high-pressure diesel fuel and delivers controlled injection events into the combustion chamber. Correct operation supports dependable starting, stable idle, balanced cylinder contribution and consistent response under load. Injector performance also depends on clean fuel, correct rail pressure, sound wiring, suitable compression and the condition of the wider fuel system.

Common Signs This Injector May Need Replacing

• Hard starting or extended cranking
• Rough idle or uneven cylinder contribution
• Reduced power during acceleration
• Increased exhaust smoke
• Abnormal combustion noise
• Excessive injector return flow
• Injector-related diagnostic trouble codes

These symptoms do not prove injector failure. Similar faults can result from low rail pressure, wiring problems, restricted fuel supply, poor compression or contaminated diesel. Professional diagnosis and injector testing are recommended before replacement.

Installation and Coding

Installation should be carried out by a qualified diesel technician using clean working practices. Protect all high-pressure connections from contamination, inspect associated pipework and replace required seals. The injector compensation or calibration code may need to be registered to the correct cylinder using suitable diagnostic equipment. Follow the service procedure for the exact vehicle.

Before You Order

Please confirm OE number, engine model or old part photos before ordering. Verify both 12640381 and 295050-0960, then check the VIN and production specification. General vehicle information is available through the Holden website, but exact injector fitment must still be confirmed by number. Use the Rayfuel contact page for photo-based support.

The 12640381 Denso diesel fuel injector is intended as an OE-number-matched aftermarket replacement for compatible Holden Colorado RG LWN 2.8L applications.

Rayfuel Supply and Support

Rayfuel supplies diesel injection components to repair shops, wholesalers and distributors. Support includes part-number comparison, old-part photo checks, quantity quotations, mixed-parts inquiries and export packaging. Contact us before shipment if you need several injectors or confirmation for a specific Holden Colorado vehicle.