Kubota 1J770-53074 Common Rail Fuel Injector Kit for V3307-CR-TE4 (Genuine)

Genuine Kubota fuel injector kit, part number 1J770-53074, a Denso-built common-rail injector for the Kubota V3307-CR-TE4 3.3L four-cylinder turbo diesel and its Caterpillar-badged twin, the CAT C3.3B. This is the injector behind the Kubota SVL75 and SVL75-2 track loaders, SSV75 skid steers, KX080-4 excavator and a long list of CAT D-series machines. Supplied to order by Valley Fuel Injection & Turbo, an authorized Kubota dealer and diesel fuel-injection shop in Woodland, CA.

Application & Fitment

Engines:

• Kubota V3307-CR-TE4, 3.3L common-rail turbo diesel (Tier 4)
• Caterpillar C3.3B, the Kubota-built version of the same engine

Equipment applications:

• Kubota SSV75 / SSV75C skid steer loaders
• Kubota SVL75 / SVL75-2 compact track loaders
• Kubota KX080-4 excavator
• Kubota M6060HFC / M7060HFC tractors
• CAT 236D, 242D, 246D, 257D, 259D, 262D, 277D, 279D, 287D and 289D skid steer and compact track loaders (D and D3 series)
• CAT 308E2 CR, 308E2 SR, 308.5, 308, 309 and 310 mini excavators
• CAT 906M / 907M / 908M compact wheel loaders
• CAT AP300F / AP355F asphalt pavers

Please note: this injector does not fit the Kubota V2403-CR. The V2403 common-rail engine uses a Bosch fuel system with different part numbers. Not sure which engine you have? Call us with your engine serial number and we will confirm the correct injector before you order.

Cross-Reference Part Numbers

• Denso 295050-1980 (2950501980)
• Caterpillar 608-2959
• Caterpillar 436-1096
• Kubota 1J770-53050, 1J770-53051, 1J770-53052, 1J770-53070, 1J770-53071, 1J770-53072 and 1J770-53073 (earlier versions of the same injector)
• Kubota 1J770-53075 (shown by Kubota dealer listings as the later replacement number)
• Kubota 1J778-53051 / 1J778-53073 (related OE numbers that appear in some injection-shop listings, call to verify)

Frequently Asked Questions

Will this injector fit my machine?

If your machine runs the Kubota V3307-CR-TE4 or CAT C3.3B, yes. That covers the Kubota SVL75/SVL75-2, SSV75, KX080-4 and M6060HFC/M7060HFC, plus the CAT D-series loaders, 308-class mini excavators, 906M through 908M wheel loaders and AP300F/AP355F pavers listed above. It does not fit the V2403-CR, which runs a Bosch injector. The fastest way to be certain is to give us your engine serial number, and we will check it against the Kubota parts system before anything ships.

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

A common-rail injector meters fuel at extremely high pressure, and a copy that flows even slightly off spec can cause hard starts, white smoke, rough running and eventually engine damage. The genuine 1J770-53074 kit is a new Denso injector built, flow-tested and calibrated to Kubota’s specification, and it carries genuine Kubota parts backing. Online marketplaces are full of untested copies of this part number. We rebuild and test common-rail injectors every day, and on this engine we recommend genuine.

How do I order, and what do you need from me?

Call 530-668-0818 or send a quote request with your engine model, engine serial number and machine model. We confirm fitment against the Kubota parts system, then quote current pricing, availability and lead time. Injector kits are supplied to order, and we can also advise on rail, supply pump and filter service while the injectors are out.

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 components, and we rebuild the very common-rail systems these parts serve. Diesel is all we do, and we have done it across Northern California and Nevada since 1993.

Pricing & availability: this genuine Kubota common-rail fuel 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.