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Mechanical Dual-Stage Diesel Fuel Injector Assemblies (Premium Set of 4)

Condition: 100% Brand New Premium Quality.

Fuel System Architecture: Tailored exclusively For Bosch VP44 Distribution Pump Systems.
These are classic pure mechanical injector nozzle assemblies.

Performance Gains: Restores original factory fuel atomization spray patterns, fixes rough idling/misfires,
cures excessive black exhaust smoke under acceleration, and improves cold-start compression firing.

FAQ

📄 Q: Do these 4JH1 injectors require electrical IMA coding or ECU programming after fitting?A: No. The For 4JH1 3.0L engine utilizes a traditional mechanical dual-stage injector setup fed via fuel lines from the VP44 distributor pump. There are no electrical solenoids, wire plugs, or digital adaptation codes on these units. They are completely mechanical drop-in parts. No programming required.

📄 Q: My Rodeo has a later 3.0L engine (4JJ1 model) - will these injectors fit?A: No. The later generation 2007+ models use the 4JJ1 Common Rail high-voltage electronic injection system. This item 105118-8210 is strictly engineered For 4JH1 (2003-2006) older mechanical engine blocks. They are completely different shapes and non-interchangeable.

📄 Q: How can I verify that this is the exact correct part number for my vehicle?A: Please locate and clean the flat surface on your existing injector's metal shank body; the reference number will usually be stamped there (e.g., starting with 105118-xxxx or an Isuzu part code). Alternatively, send us your 17-digit VIN (Chassis Number) and we will verify the build details.

📄 Q: Is there a mandatory procedure required before installing these brand-new injectors?A: Yes. You MUST thoroughly drain, flush, and clean the entire engine fuel tank, feed lines, and fuel hoses, and install a premium brand-new fuel filter. Any metal shavings, microscopic tank scaling, or water sludge left in the lines from the old pump failure will instantly score the tight tolerances of the new nozzles, which voids warranty coverage.

⚠️ Please Note: Please ensure your factory parts display stamped codes 105118-8210 or 8973829480 before completing payment. Thorough line bleeding to completely purge trapped air pockets is mandatory post-installation For Holden and For Isuzu mechanical diesel fueling overhauls.