Kubota 1J508-53076 Common Rail Fuel Injector Kit for V3800 Engines

The Kubota 1J508-53076 is a genuine Kubota fuel injector kit (Kubota catalog listing “INJECTOR,KIT”) for the 3.8L V3800 common-rail Tier 4 Final engine family. It is a Denso-built common-rail injector and the current factory supersession of part numbers 1J508-53070 and 1J508-53074, so if your parts diagram shows either earlier number, 1J508-53076 is the kit Kubota supplies today. Worn or fouled injectors show up as hard starting, rough idle, smoke, poor fuel economy, and lost power. A genuine Kubota injector restores factory spray pattern, flow calibration, and emissions compliance.

Application & Fitment

This injector kit fits the Kubota V3800-TIEF4 (also listed as V3800-CR-TE4) electronic common-rail diesel, used in:

• Kubota SVL95-2S and SVL95-2SC compact track loaders
• Kubota SVL97-2 and SVL97-2C compact track loaders
• Kubota M5 series tractors, including the M5-091 and M5-111 (HD and HDC variants)
• Kubota M6 series tractors such as the M6-101DTC (listed under this kit’s predecessor part numbers, call to verify)

The same Denso injector also serves the CAT C3.8B, a Kubota V3800-based common-rail engine, in CAT 272D2, 297D2, 299D2, and 299D3 loaders under CAT part number 482-8434. That cross-reference is published against the predecessor Kubota numbers this kit replaces, so call us to verify it against your engine serial number before ordering for a CAT machine.

Fitment always comes down to the serial number. Have your engine model and serial number ready and we will confirm the exact injector for your machine before anything ships.

Cross-Reference Part Numbers

• Kubota 1J508-53070 | superseded by 1J508-53076
• Kubota 1J508-53074 | superseded by 1J508-53076
• Denso 295700-0100 and Denso 295700-0101 | published for the predecessor Kubota part numbers this kit replaces
• CAT 482-8434 | Fuel Unit Injector for the CAT C3.8B, listed against predecessor 1J508-53074

Because the Denso and CAT numbers are published against earlier numbers in this supersession chain, confirm your application with us if you are cross-referencing from one of them.

Frequently Asked Questions

Will 1J508-53076 fit my SVL95-2 or SVL97-2 track loader?

Yes. The SVL95-2S, SVL95-2SC, SVL97-2, and SVL97-2C run the Kubota V3800-TIEF4 common-rail engine this kit serves. Give us the engine serial number and we will confirm it against the Kubota parts system before you order.

Why buy a genuine Kubota injector instead of an aftermarket one?

These are Denso-built common-rail injectors, flow-calibrated to tolerances aftermarket copies rarely match. Each injector carries a correction code that must be programmed into the engine ECU at installation, and a genuine kit comes with a valid code, the correct seals, and Kubota warranty backing. As a shop that rebuilds common-rail systems every day, we know exactly what separates a genuine injector from a cheap copy, and at the injection pressures a V3800 runs, injector quality is not the place to save money.

How do I order this injector kit?

Call 530-668-0818 with your engine model and serial number, or send them through our contact page. We will confirm fitment, quote current pricing and lead time, and advise on quantity. On higher-hour engines, replacing injectors as a complete set is commonly recommended so all cylinders stay balanced.

Why source your Kubota parts from Valley Fuel Injection

As an authorized Kubota dealer and diesel fuel injection specialists, Valley Fuel Injection & Turbo supplies genuine Kubota engines and fuel-system parts, and we rebuild the very common-rail systems these injectors serve. Diesel is all we do, and we have done it from Woodland, California since 1993.

Pricing & availability: this genuine Kubota injector kit is supplied to order. Call 530-668-0818 or request a quote for current pricing, availability, and lead time. Have your engine model and serial number ready so we can confirm the exact part for your machine.