This is a new, genuine Kubota common-rail fuel injector kit, part number 1J070-53074. It belongs to Kubota’s 1J070 part series, the common-rail version of the V1505 1.5 liter four-cylinder diesel, which Kubota’s own part names call the V1505-CR-T. Kubota’s parts catalog lists it for the LX3310 compact tractor (LX3310HSD, LX3310HSDC), the F3710 front mower and ZD1611 zero-turn mowers (ZD1611LF, ZD1611RL, ZD1611RLF). It is Kubota’s replacement for the earlier kit 1J070-53070. The engine takes four.

This is an electronic injector fed from the fuel rail, not the mechanical nozzle holder used on the V1505 in the B3350. Common-rail injectors are usually replaced after a failed fuel return test, an injector or cylinder balance fault code, hard starting, rough running or white smoke. Water or dirt in the fuel is the usual cause, so sort out the fuel supply and the filters at the same time.

Specifications

Fits / Applications

• Kubota V1505 common-rail four-cylinder diesel, 1.5 L, in Kubota’s 1J070 part series (V1505-CR-T)
• Kubota LX3310 compact tractor: LX3310HSD, LX3310HSDC
• Kubota F3710 front mower
• Kubota ZD1611 zero-turn mowers: ZD1611LF, ZD1611RL, ZD1611RLF
• Four injectors per engine

Kubota’s Diagmaster service tool has an injector compensation function, and it is run when a common-rail injector is replaced, so plan the job with a shop that has the tool. Keep everything clean: cap the lines and ports as soon as they are open, fit new sealing parts, and tighten the clamp and line nuts to the torque in the Kubota workshop manual.

Part Numbers & Cross Reference

Kubota 1J070-53074  ·  Kubota (superseded) 1J070-53070

Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.

Frequently Asked Questions

Will the 1J070-53074 fit my Kubota LX3310?

Yes. Kubota’s parts catalog lists it for the LX3310HSD and LX3310HSDC, and for the F3710 front mower and ZD1611 zero-turn mowers. For any other model, call 530-668-0818 with the serial number and we will check.

Does it replace 1J070-53070?

Yes. Kubota replaced the earlier injector kit 1J070-53070 with 1J070-53074.

Does a new injector have to be set up in the ECU?

Plan on it. Kubota’s Diagmaster service tool has an injector compensation function that is run when a common-rail injector or the ECU is replaced.

Is the 1J070-53074 new or remanufactured?

New, genuine Kubota. The engine takes four, and this listing is for one injector kit.

Related Parts

• Kubota V1505 Fuel Injector for B3350, F3990 & ZD1511, Nozzle Holder Kit | Genuine Kubota 1J050-53900
• Kubota D1005, D1105 & V1505 Fuel Injector for BX2680, RTV-X1100C | Genuine Kubota 1G677-53903
• Kubota D905, D1005, D1105, V1305 & V1505 Early-Build Fuel Injector Kit | Genuine Kubota 16032-53902
• Kubota V1505 Common-Rail Turbocharger Assembly for LX3310, F3710 & ZD1611 | Genuine Kubota 1J070-17010

Why Buy From Valley Fuel Injection

We are an authorized Kubota dealer and a diesel fuel-injection shop in Woodland, CA, working on diesel engines since 1993. When you call, you talk to people who know Kubota engines, and we check the part number against your engine serial or machine model before anything ships, so the right part arrives the first time. See our Kubota engine sales, parts and service.