295050-0960 Common Rail Injector | Denso DCRI300960 Duramax 2.8L LWN

This 295050-0960 common rail diesel injector is the direct service replacement for OEM reference 12640381, cross-referenced to Denso code DCRI300960. It is built for the Duramax 2.8L LWN engine platform, covering Holden Colorado RG and Chevrolet S10 applications where precise pilot injection and rail pressure holding are non-negotiable for cold-start smoothness and load response. Each unit is supplied as a new aftermarket assembly, individually packaged for distributor shelf stock and workshop bay-side handling.

This injector is calibrated specifically for the 2.8L Duramax LWN four-cylinder diesel, the powerplant widely recognized in Australian and South American markets under the Holden Colorado RG and Chevrolet S10 badges. The LWN engine relies on a common rail layout where injection timing and quantity are managed electronically per cylinder; a drifted or leaking 295050-0960 unit shows up first as a cold-start haze, a rhythmic injector balance deviation on a scan tool, or a faint diesel knock under light throttle that disappears once rail pressure builds. Workshops servicing fleet Colorados and S10s should treat DCRI300960 as a stock-holding line item rather than a special-order part, because these vehicles routinely accumulate high hours in mixed load cycles where pilot injection quality directly affects DPF loading and oil dilution risk.

Fitting a common rail injector on the LWN demands the same discipline as any high-pressure diesel system: cap every open port immediately, replace the high-pressure fuel line and combustion seal rather than reusing them, and clean the injector bore until it is free of carbon varnish before seating the new unit. Torque the clamp and pressure union to the manufacturer's figure, then perform the injector coding or pilot-learn routine with a capable scan tool. Skipping the coding step leaves the ECM running default correction values, which masks the new injector's flow match and can produce a lingering rough idle that technicians mistakenly blame on the part. Prime the rail before cranking, and run a leak-off check after the first heat cycle to confirm the control valve is sealing correctly.

For an independent diesel shop or a common rail specialist, the 295050-0960 sits in a high-turnover repair category: the LWN is common enough that bay time is predictable, yet the injectors are far enough into their service life on many units that return flow drift and nozzle wear are regular diagnostic findings. Carrying a matched set allows a technician to replace a single failed cylinder without waiting on a dealer backorder, and the 12640381 cross-reference simplifies lookup for counter staff handling walk-in Colorado and S10 owners. The commercial logic is straightforward: a correctly coded DCRI300960 restores combustion stability, reduces the fuel dilution that thins engine oil on short-trip duty, and keeps the vehicle out of a repeat repair loop.

We supply a bench test report with each production batch covering leak-off rate, opening response, and spray pattern verification against the DCRI300960 specification window. Photographs of the assembly line, calibration station, and final inspection bench are available on request for distributors building technical files or satisfying internal supplier qualification requirements. Ask our sales desk for the current batch documentation package when placing a stock order.

Q1: Will the ECM reject a new 295050-0960 if the original injector failed electrically rather than mechanically?
A: No. The coding routine writes the new injector's correction values into the ECM; the failure mode of the old unit does not affect the learn procedure. Clear stored injector circuit codes first.

Q2: Can I replace just one injector on an LWN, or does the whole set need swapping?
A: One unit is acceptable if the remaining injectors pass a leak-off and balance test within spec. If two or more show drift, quote the set to avoid a comeback.

Q3: What is the most common warranty return cause on this part number?
A: Contamination introduced during installation. A speck of debris at the inlet union scores the control valve seat within minutes. Cap ports until the moment of connection.

Q4: Do you supply matched flow sets for fleet workshops?
A: Yes. Request a matched set at order entry; we bench-group units within the DCRI300960 tolerance band and label each cylinder position.

Q5: How should the injector be stored before installation?
A: Keep it in the sealed sleeve, upright, away from damp concrete. The solenoid terminals and nozzle cap stay in place until the bay is ready.

Q6: Is the pressure union torque spec the same as OEM?
A: Yes, the 295050-0960 body and thread dimensions follow the original Denso drawing. Use the LWN service manual figure; do not exceed it to chase a leak.