Kubota Tractor Engine Parts

Engine pistons, rings, bearings, gasket sets, fuel solenoids, overhaul kits, and related internal engine components for Kubota L, B, and M series tractors spanning decades of production — from early L1500-era machines to modern MX and M series cab tractors.

Fits Models At A Glance

• B Series: B1700, B21, B2100, B2400, B2910HSD, B3000HSDC, B3030HSD, B3200HSD, B3300SUHSD, B7800
• Early L Series: L1500, L1501, L175, L185, L1801, L1802, L2000, L2002, L2050, L225, L235, L245, L275, L285, L295, L305, L345, L355
• Mid L Series: L2200, L2201, L2202, L2250, L2350, L2402, L2500, L2550, L2600, L2601, L2650, L2850, L2900, L2950, L3001, L3202, L3250, L3300, L3350, L3450, L3600, L35, L4202
• Late L Series: L4350DT, L4400DT, L4740, L5040GST3, L5240, L4740HST3, L5640
• M Series: M4000, M4050, M4500, M4950, M5140, M5640SU, M6040, M7040, M8200, MX4700, MX5100

Key Notes

• Piston/Ring Sizes: 76mm, 82mm, and 85mm bore options available to match original specifications
• Bearing Types: Main bearing sets, rod bearing sets, and thrust washer sets in standard sizing
• Gasket Sets: Top, upper, lower, and bottom gasket sets available for select early L series models
• Overhaul Kits: Complete engine overhaul kits for V1505, V2203, V2403, and V3300 engine families
• Fuel Solenoids: Fits D905, D1005, D1105, and larger V-series diesel engines across B and M series

Why Choose Broken Tractor

• ✅ Broad fitment coverage across 40+ Kubota tractor models
• ✅ Engine kits and components sourced for direct replacement
• ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH

Frequently Asked Questions

Which engine overhaul kit fits a Kubota L4740 tractor?

The Kubota L4740 uses the V2203 and V2403 engine family overhaul kits, which Broken Tractor carries in several versions, including SKUs RP2139, V2203MW and V2203MW-25. The same kits also fit the L4350DT, L4400DT, L5240 and MX5100. Because these kits differ by version, match the part number to your engine before ordering.

What overhaul kit fits a Kubota B3200HSD or other B series tractor?

The V1505 engine overhaul kit fits the Kubota B2910HSD, B3000HSDC, B3030HSD, B3200HSD, B3300SUHSD and B7800HSD. We offer it in a standard bore version (SKU V1505) and a 0.50mm bore version (SKU V1505-50). Choose the bore size that matches your cylinders, especially if the block has been bored before.

What piston ring size do I need for a Kubota L2202?

The Kubota L2202 is listed for both the 76mm ring set (SKU 15221-21050) and the 85mm ring set (SKU S.22459), so the correct size depends on your engine's bore. The 85mm piston and ring set also fit the L2402, while the 82mm ring set fits the L1801, L2002 and L2601. Ring sets are sold per cylinder, so order one for each cylinder you are rebuilding. Because fitment can vary by engine and serial number, match the part number on your old parts or call (800) 909-7060 to confirm.

Which fuel shutoff solenoid fits a Kubota M7040 tractor?

The fuel shutoff solenoid SKU 1G772-60012 fits the Kubota M7040 and M6040 in their DT, F, HD and cab variants. For the L4740, L5040, L5240, M5140, M5640 and MX4700, use SKU 1A021-60015 instead. The B7800 with a D905, D1005 or D1105 engine takes SKU 17208-60010.

What gasket sets are available for early Kubota L series tractors?

Broken Tractor carries top and lower engine gasket sets for the Kubota L1500 and L175, plus upper and bottom engine gasket sets for the L2000 and L225. A top gasket set is also available for the L2600 and L285. Each set is model specific, so pick the set listed for your exact tractor model.