Kubota L3301F / L3901F Compact Tractor L3301F Injectors

Kubota L3301F / L3901F Compact Tractor L3301F Overview

The Kubota L3301F / L3901F Compact Tractor with the L3301F 2.4L V2403 CR engine was produced between 2014 and 2024. This vehicle uses Bosch common rail diesel injectors (primary part number 0445110777) operating at fuel pressures up to 2000 bar. The L3301F engine in the Kubota L3301F / L3901F Compact Tractor produces and of torque. When replacing injectors on the Kubota L3301F / L3901F Compact Tractor L3301F, always use new copper sealing washers and torque to manufacturer specifications. Each injector should be coded to the ECU after fitting.

Compatible Injectors

Common Injector Problems in Kubota L3301F / L3901F Compact Tractor

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  Rough idle and engine vibration — Worn injector nozzles cause uneven fuel spray, leading to rough idle at low RPM. Most noticeable when the engine is cold.
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  Excessive exhaust smoke — Black or blue-grey smoke on acceleration indicates poor fuel atomisation. This is often caused by carbon buildup on the injector nozzle tip.
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  Poor fuel economy — A worn or leaking injector delivers incorrect fuel quantities, reducing efficiency by 10–20% in severe cases.
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  Engine misfire under load — Intermittent misfires during acceleration suggest one or more injectors are failing to deliver the correct fuel pressure.
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  Difficult cold starting — Degraded injector nozzles struggle to atomise fuel at lower cranking pressures, causing extended crank times in cold weather.

Other Engine Codes for Kubota L3301F / L3901F Compact Tractor

Related Pages

Bosch 2.4L V2403 CR — browse compatible engines, vehicles, and injectors