Kubota L3901

Parts Compatible with the Kubota L3901 Compact Tractor

The L3901 sits in the upper portion of Kubota's Standard L Series compact tractor lineup, between the L3301 (33 horsepower) below and the L4701 (47 horsepower) above. The L3901 shares the same chassis as the L2501 and L3301, with engine displacement and rated power as the primary scale variables between the three machines on that shared chassis. Where the L2501 stays below the 25 horsepower Tier 4 emissions threshold to avoid the DPF service requirement, the L3901 sits above that threshold with the full Tier 4 emissions package including the DPF, with correspondingly different fuel system service intervals than the L2501. The drivetrain variants follow the same pattern across the L Series: DT for 4WD gear, F for the front loader configuration, H and HST for hydrostatic transmission options.

Many L3901 service parts cross to L2501 and L3301 in the same Standard L chassis because Kubota built all three machines on the same component platform. The L3901 also crosses on engine and fuel system service to the larger L4701 because the L4701 uses an engine from the same family scaled up for the larger frame.

Common Replacement Parts for the Kubota L3901

Hydraulic system service is one of the central order categories on the L3901 across all configurations. Hydraulic Filter HH3A0-82623 is the spin on hydraulic filter, the same filter used on the L2501 and other Standard L Series chassis machines. Engine internal sealing service uses Seal 19202-04460, the engine seal shared across the L Series and several Kubota mini excavator engine applications.

Fuel system service uses Fuel Filter 15831-43380 for the Tier 4 final primary fuel filter on the L3901. Smaller assembly hardware and gauge components (Oil Gauge Plug 1G513-36550, Guide Oil Gauge 17456-36420, O-Ring 04811-50550, O-Ring 04817-50300, Washer 04512-50080) are typically batched into a service order alongside the larger filter and seal components. Because the L3901 sits above the 25 HP Tier 4 emissions threshold, the DPF and associated emissions hardware come into play at higher hour intervals than the L2501, which has a simpler routine maintenance schedule.