Kubota Tractor Electrical

Alternators and starters for Kubota tractors and compact utility equipment, covering a wide range of B, L, M, and MX series machines across multiple decades of production. Both new and replacement units are available to get your Kubota running again.

Fits Models At A Glance

• B Series: B1500, B1550, B1700, B1750, B20, B21, B2100, B2150, B2410, B2710, B2910, B3030HSD, B3200HSD, B4200D, B7100, B7200
• BX Series: BX1500, BX1800, BX1830, BX1850D, BX1860, BX1870, BX1880, BX2200D, BX2230, BX2230D, BX2350, BX2360, BX2370, BX2380, BX22D, BX23D, BX24, BX25
• L Series (Compact): L175, L185, L225, L235, L245, L275, L285, L295, L305, L345, L2050, L2202, L2250, L2350, L2600, L2650, L2800, L2850, L2900, L2950, L3000, L3010, L3130, L3240, L3250, L3300, L3400, L3410, L3430, L3450, L3540, L3600, L3650, L3710, L3750, L4200, L4300, L4310, L4350, L4610, L4700, L4850DT, L48, L5400, L5450DT
• L3000–L4000 Sub-Series: L3350DT, L3750DT, L4150
• M Series: M4030, M4030DT, M4030SU, M4030SUTF, M4500, M4700, M4700DT, M4800, M4800SUDF, M4800SUF, M4900, M4900DT, M4900SU, M4900SUDT, M4950, M4950DTS, M4950S, M5030, M5400, M5400DT, M5400DTN, M5700, M5700DT, M7500
• MX Series: MX5000

Key Notes

• Voltage/Amperage: Units range from 12V/25A to 12V/45A; verify specs before ordering
• Starter Types: Includes ND/OSGR and standard gear reduction starters; tooth count varies by application
• Alternator Types: ND/IR/IF, ND/ER/EF, and Nippondenso external regulator types available
• Serial Number Sensitivity: Some L and KH series fitments require specific serial number ranges — confirm before ordering
• Cross-Reference: Select units cross to Case-IH applications; confirm OEM part number match

Why Choose Broken Tractor

• ✅ Broad Kubota fitment coverage across all major series
• ✅ OEM part numbers listed for confident cross-referencing
• ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH

Frequently Asked Questions

What Kubota tractor models do your alternators and starters fit?

Broken Tractor carries alternators and starters for Kubota B, BX, L, M and MX series tractors, including models such as the B2410, BX2380, L3400, L4610, M4900 and MX5000. Coverage spans multiple decades of production, from older L175 and L245 models to newer BX and M series machines. Always match the OEM part number on your old unit to confirm fitment before ordering.

How do I choose the right alternator for my Kubota tractor?

Start by matching the OEM part number and the voltage and amperage rating of your original alternator. Kubota tractor alternators we carry range from 12 volt 25 amp to 12 volt 45 amp, and they come in different styles, including ND/IR/IF, ND/ER/EF and Nippondenso external regulator types. Choosing the wrong regulator style or amperage can cause charging problems, so verify these specs before you order.

Are all Kubota tractor starters the same?

No, Kubota starters vary by model. We offer ND/OSGR and standard gear reduction starters, and the pinion tooth count changes from one application to another. Compare the OEM part number and tooth count on your existing starter to make sure the replacement engages your flywheel correctly.

Does the serial number matter when ordering a starter or alternator for a Kubota L series tractor?

Yes, some Kubota L series fitments only apply to specific serial number ranges, so the same model can take different parts depending on when it was built. Check the serial number on your tractor and match it against the OEM part number before you order. If you are unsure, call (800) 909-7060 and the parts team can help confirm the correct unit.

Can I use the OEM part number to find a replacement Kubota alternator or starter?

Yes, the OEM part number is the most reliable way to find the right replacement. Broken Tractor lists OEM part numbers on its Kubota alternators and starters so you can cross-reference your old unit with confidence. Orders ship fast from our locations in Baton Rouge, LA and Kimbolton, OH.