This is a new, genuine Kubota EGR valve assembly, part number 1J807-62703. Kubota’s parts description reads VALVE,ASSY(EGR), and it supersedes the earlier 1J807-62700. It is for the common-rail D1803, the 1.8 liter three-cylinder, and Kubota dealer parts catalogs list it on the R430 wheel loader, whose engine is turbocharged and intercooled.

It belongs to Kubota’s 1J807 number series, which also carries the R430’s EGR cooler, 1J807-71410. EGR valves are replaced when they stick from soot or the actuator fails. Signs are EGR fault codes, rough idle, black smoke, low power or a derate. Check the connector, the wiring and the EGR cooler and pipes before you order.

Specifications

Fits / Applications

• Kubota D1803 common-rail diesel engine, turbocharged and intercooled build
• Kubota R430 wheel loader
• Current replacement for an old valve numbered 1J807-62700

Fit a new EGR valve gasket, Kubota 1J803-17410. Kubota’s parts list for the R430 shows a lead valve, 1J574-13710, in the same group, so check it for soot and damage while the EGR valve is off. Clean the mating faces, check the connector and harness, then clear stored codes after the repair.

Part Numbers & Cross Reference

Kubota 1J807-62703  ·  Kubota (superseded) 1J807-62700

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 1J807-62703 fit my Kubota R430?

Kubota dealer parts catalogs list it as the EGR valve for the R430 wheel loader. Call 530-668-0818 with your engine serial number and we will confirm it before you order.

What numbers does the 1J807-62703 replace?

It supersedes Kubota 1J807-62700. If your old valve carries that number, this is the current part.

Is it the same as 1J805-62705 or 1J808-62703?

No. 1J805-62705 is another D1803 valve and 1J808-62703 is a V2403 valve. They look alike, so order by the number on your old valve.

Is it new or remanufactured?

New, genuine Kubota. It is the complete EGR valve assembly, and the gasket is a separate part number.

Related Parts

• Kubota D1803 Engine Wire Harness 1J807-65066 (Genuine)
• Kubota V2403 D1803 Fuel Injector 1J808-53052 (Genuine)
• Kubota D1803-CR-TIE4 & V2403-CR-TIE4 Common-Rail Fuel Injector | Bosch 0445110775 New
• Kubota V2403-CR D1803-CR Injection Pump 1J801-50500 (Genuine)

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.