095000-6980 — Technical Research
Denso common-rail diesel injector for the Isuzu 4JJ1-TC / 4JJ1-TCX 3.0-litre engine, cross-referenced to Isuzu OE family 8-98011604. Fitted to the Isuzu D-Max (3.0), Holden Rodeo RA and Colorado RC, and Chevrolet Colorado (2007-2012). Common failure drivers on these 4JJ1 injectors are fuel contamination, nozzle coking and internal wear that raises back-leakage until the ECU can no longer compensate. Key symptoms: Hard starting / extended cranking; Rough idle and vibration; Loss of power / limp mode; Black smoke. Common failure modes: Nozzle coking / poor atomisation; High back-leakage / internal wear; Corrosion from water in fuel.
Denso 095000-6980 Isuzu 4JJ1-TC 3.0 Common Rail Injector
Denso common-rail diesel injector for the Isuzu 4JJ1-TC / 4JJ1-TCX 3.0-litre engine, cross-referenced to Isuzu OE family 8-98011604. Fitted to the Isuzu D-Max (3.0), Holden Rodeo RA and Colorado RC, and Chevrolet Colorado (2007-2012). Common failure drivers on these 4JJ1 injectors are fuel contamination, nozzle coking and internal wear that raises back-leakage until the ECU can no longer compensate. Key symptoms: Hard starting / extended cranking; Rough idle and vibration; Loss of power / limp mode; Black smoke. Common failure modes: Nozzle coking / poor atomisation; High back-leakage / internal wear; Corrosion from water in fuel.
High back-leakage from a worn injector drops cranking rail pressure on the 4JJ1, making the engine slow to start, especially when cold.
An out-of-balance injector unevenly fuels its cylinder, producing a shaky idle and audible misfire.
When injector delivery falls outside its correction range the ECU pulls fuel and boost or drops the D-Max into limp mode.
Poor atomisation from a worn nozzle over-fuels the cylinder, producing visible black smoke under load.
A leaking injector causes a pronounced top-end knock on the 4JJ1, often most obvious at idle.
Internal leakage and over-fuelling waste fuel and can trigger fuelling-related fault codes.
- codingEach Denso injector carries an individual ID/QR correction code that must be written into the ECU after fitting; without coding the 4JJ1 runs on default trim and may log cylinder-balance faults.
- InstallationReplace the fuel filter and check for water/debris before fitting - contaminated fuel is the leading cause of repeat failure on the 4JJ1.
- InstallationFit a new injector sealing washer and use the correct tightening torque; a reused or crushed washer causes combustion blow-by around the injector bore.
- MisdiagnosisRead live injector correction and back-leakage values to find the weak cylinder before removal rather than replacing all four injectors blind.
- WarningConfirm the stamped Denso number (095000-6980) and Isuzu OE (8-98011604) before ordering - the 4JJ1 ran several injector revisions and the 2.5 4JK1 (095000-6992 / 8-98011605) is NOT interchangeable.
- TestingBench-test on a Denso-capable common-rail tester across delivery and back-leakage points; verify spray pattern and cylinder balance before refitting.
What is Denso injector 095000-6980?+
A Denso common-rail diesel injector for the Isuzu 4JJ1-TC / 4JJ1-TCX 3.0 engine, cross-referenced to Isuzu OE family 8-98011604.
Which vehicles use 095000-6980?+
Isuzu D-Max 3.0, Holden Rodeo RA and Colorado RC, and Chevrolet Colorado with the 3.0 4JJ1-TC engine (2007-2012).
Is it solenoid or piezo?+
It is a Denso solenoid common-rail injector.
What is the Isuzu OE number for 095000-6980?+
The Isuzu OE family is 8-98011604 (e.g. 8-98011604-1 / 8-98011604-5). Always confirm the number stamped on your original injector before ordering.
What are the symptoms of a failing 095000-6980?+
Hard starting, rough idle and vibration, loss of power or limp mode, black smoke, diesel knock and higher fuel consumption.
Why does my Isuzu D-Max knock or rattle?+
A leaking injector causes a top-end knock on the 4JJ1 that is often most obvious at idle. Bench-test to confirm the faulty cylinder before replacing.
What causes these injectors to fail?+
Fuel contamination, water in the fuel, nozzle coking and high-mileage internal wear that raises back-leakage - fix the cause, not just the injector.
Do I need to code the injector to the ECU?+
Yes. Each Denso injector has an individual ID correction code that must be written into the ECU after fitting, or the engine runs on default trim and may log cylinder-balance faults.
Is 095000-6980 the same as the 2.5 4JK1 injector?+
No. 095000-6980 (8-98011604) is the 3.0 4JJ1-TC injector; the 2.5 4JK1-TC uses a different injector (095000-6992 / 8-98011605). They are not interchangeable - match the stamped number.
Should I replace one or all four?+
Diagnose each with live correction and back-leakage values; on high-mileage 4JJ1 engines failures often cluster, so check all four before deciding.
Does a remanufactured 095000-6980 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated to the Denso plan to meet original delivery and back-leakage specifications.