2.4L V2403 CR · Remanufactured
Remanufactured Bosch 0445110777 (0 445 110 777) common-rail diesel injector for the Kubota V2403 2.4-litre engine — direct replacement for Kubota OE 1J801-53052 (also listed as 1J80153052). Fits Kubota KX040-4 mini excavators, L3301F / L3901F / L4701F compact tractors and MX4800H / MX5200F utility tractors powered by the V2403 common-rail unit. OEM-tested and calibrated with full flow and leak-back verification on CR318 PRO test bench. Includes 12-month unlimited-mileage warranty. Supplied as an exchange unit — return your old injector within 21 days.
KX040, KX040-4, L3301F, L3901F, L4701F, MX5200F, MX4800H, V2403
Hard starting or extended cranking; rough or uneven idle; loss of power under load; excess smoke from the exhaust; cylinder misfire or contribution fault codes. When two or more appear together, suspect the injector before peripherals — a comparative leak-off test isolates the failed unit without tear-down.
Injector back-leak beyond specification; nozzle wear degrading the spray pattern; combustion gas leaks past the injector seat washer. Internal wear cannot be repaired in situ — once delivery drifts outside calibration, remanufacture or replacement is the reliable fix.
Run a comparative leak-off (back-leak) test across all injectors before condemning a single unit. Compare requested vs actual rail pressure in live data at idle and under load. Inspect injector connectors and wiring before replacing hardware. Never condemn a common-rail injector on a fault code alone.
Each remanufactured 0445110777 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.
The 0445110777 trusted family covers 4 verified vehicle fitments across 1 makes: Kubota. Every fitment listed is registry-verified.
0445110777 cross-references 2 further OE numbers, including 1J80153052 and 1J801-53052. Always match the reference etched on your failed unit's body.
UK diesel injector specialists supplying OEM tested and calibrated remanufactured injectors. Trusted by garages and mechanics nationwide with 12-month warranty on every part.