Denso 23670-09350 Diesel Injector

3.0L D-4D · Remanufactured

Toyota 1KD-FTV 3.0 D-4D Denso common-rail injector

Shared engine codes

1KD-FTV, 1KDFTV, 1KD

Compatible vehicles

Common 23670-09350 injector failure symptoms

Diesel knock / injector rattle at idle; rough running when cold; black smoke under load; misfire on individual cylinders; loss of power. When two or more appear together, suspect the injector before peripherals — a comparative leak-off test isolates the failed unit without tear-down.

What causes these injectors to fail

Injector leak-back rising with wear (documented kd-series trait); nozzle wear causing over-fuelling and combustion damage risk on neglected engines; injector seal leaks allowing combustion blow-by. Internal wear cannot be repaired in situ — once delivery drifts outside calibration, remanufacture or replacement is the reliable fix.

How workshops diagnose 23670-09350 faults

Do not ignore injector rattle on KD engines — prolonged over-fuelling from worn injectors is documented to cause combustion damage. Compare leak-off across all injectors before ordering replacements. Denso compensation codes must be registered using the manufacturer diagnostic procedure after fitting. Never condemn a common-rail injector on a fault code alone.

How every unit is tested before despatch

Each remanufactured 23670-09350 is fully stripped, ultrasonically cleaned and inspected; worn components are replaced with OE-grade parts. The rebuilt unit is calibrated on a common-rail test bench against the manufacturer's specification — delivery, back-leak and response verified — and despatched with a 12-month parts warranty and its calibration data on file.

Vehicle coverage at a glance

The 23670-09350 trusted family covers 5 verified vehicle fitments across 1 makes: Toyota. Every fitment listed is registry-verified.

OE & cross-references

23670-09350 cross-references 9 further OE numbers, including 23670-09060, 23670-09070, 23670-30050, 23670-30310, 23670-30400, 23670-39145, 23670-30030 and DCRI300460. Always match the reference etched on your failed unit's body.

Related fault codes & engine guides

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