Kubota 1J770-53075 Fuel Injector Kit | Genuine Common Rail Injector for V3307-CR-TE4

The Kubota 1J770-53075 is the current genuine Kubota “INJECTOR, KIT” for the V3307-CR-TE4 common rail turbo diesel. The kit includes a new Denso common rail injector (Denso 295050-1980) with the O-rings and seals needed for a clean, leak-free installation. It is the factory replacement for the entire earlier 1J770 injector line, so if your parts book shows 1J770-53050, 1J770-53051, 1J770-53053, 1J770-53070, 1J770-53073, or 1J770-53074, this is the number Kubota supplies today.

Valley Fuel Injection is an authorized Kubota dealer and a diesel injection specialist shop since 1993. We do not just sell injectors, we test, diagnose, and repair complete common rail systems every day through our diesel fuel injection services, so we can help you confirm the injector is actually the problem before you spend the money.

Application & Fitment

This injector kit fits the Kubota V3307-CR-TE4, the 3.3 liter Tier 4 common rail turbo diesel used across Kubota’s mid-size construction and tractor lineup. The same injector is used in the Caterpillar C3.3B, which is the CAT-branded version of this Kubota engine, under CAT part numbers 436-1096 and 608-2959.

Kubota equipment applications:

• SVL75-2, SVL75-2C, SVL75-2CA compact track loaders
• SSV75, SSV75C, SSV75P, SSV75PC skid steer loaders
• KX080-4 and KX080-4S excavators
• M6060HD, M6060HDC, M6060HFC tractors
• M7060HD, M7060HD12, M7060HDC, M7060HDC12, M7060HFC tractors
• M4-071HDC12, M4D-061HDC12, M4D-071HDC12 tractors

CAT C3.3B applications (same injector via CAT crosses 436-1096 / 608-2959):

• 236D through 289D and D3 series skid steer and compact track loaders
• 308E2 CR and 308E2 SR mini excavators
• 906M, 907M, 908M compact wheel loaders
• AP300F and AP355F asphalt pavers

Injector part numbers change with engine serial number breaks. If you are not certain which kit your machine takes, call us with your engine model and serial number and we will verify fitment before you order.

Cross-Reference Part Numbers

Kubota 1J770-53075 replaces or interchanges with the following numbers:

• Denso 295050-1980 (also listed as 241-102-0030 / 2411020030)
• Caterpillar 436-1096 and 608-2959 (C3.3B engine)
• Kubota 1J770-53050, 1J770-53051, 1J770-53052, 1J770-53053
• Kubota 1J770-53070, 1J770-53073, 1J770-53074
• Kubota 1J778-53051 and 1J778-53073
• Kubota remanufactured KEARI-1J770
• Denso 295050-1320 (earlier variant listed as compatible)

Frequently Asked Questions

Does 1J770-53075 replace my older Kubota injector part number?

Yes. Kubota has superseded this injector several times, and 1J770-53075 is the current factory number. It replaces 1J770-53050, 1J770-53051, 1J770-53052, 1J770-53053, 1J770-53070, 1J770-53073, and 1J770-53074. If your old injector or parts diagram shows any of those numbers, this is the correct kit to order today.

Should I replace one injector or all four?

It depends on hours and fuel history. When an injector fails from contaminated fuel, water, or debris, the remaining three have usually been exposed to the same conditions. As a full injection shop we can test your injectors, inspect the supply pump and rail, and tell you honestly whether one kit or a full set makes sense. See our common rail system repair service, or call us and we will talk it through, including set pricing if you need all four.

My machine is a CAT, not a Kubota. Will this injector fit?

If your machine runs the Caterpillar C3.3B engine, yes. The C3.3B is a Kubota-built engine, and this same injector is sold by CAT as 436-1096 and 608-2959. That covers the D-series and D3 skid steers and track loaders (236D through 289D), 308E2 CR/SR mini excavators, 906M/907M/908M wheel loaders, and AP300F/AP355F pavers. Give us your engine serial number and we will confirm before it ships.

Why Buy From Valley Fuel Injection

• Authorized Kubota dealer. Genuine Kubota parts in factory packaging, no gray-market or counterfeit risk.
• Diesel injection specialists since 1993, based in Woodland, California.
• Complete Kubota engine sales, parts, and service under one roof.
• Real diagnostic help. We repair common rail systems daily, so we can help you avoid replacing parts that are not the problem.
• Serial number fitment verification on every injector order.

Pricing & Availability

Call 530-668-0818 for current pricing and availability on the genuine Kubota 1J770-53075 injector kit, including set pricing if you need all four injectors. Please have your engine model and engine serial number ready so we can confirm the correct kit for your machine. You can also contact us online and we will get back to you quickly.