This is the genuine Kubota 15221-43170 fuel filter element. Kubota dealer catalogs list it for the KX018-4, KX030-4, KX033-4, KX057-4, KX080-3, KX41-2, KX61-2, KX71-3, KX91-2, KX91-3, KX121-2, KX121-3, KX161-2 and KX161-3 excavators, the U15, U17, U25S, U27-4, U35, U45 and U55, the R310, R420 and R520 wheel loaders, the SCL1000 and older L series tractors such as the L175, L225, L2500, L2600 and L3000.

It replaces Kubota 15221-43080, the element on older machines such as the L245, L295, L345, KX41H, KX71, KX101, KX151, R400, R410 and R510. It is not the small in-line filter used on BX tractors and RTVs, which is 12581-43012. Match the number on your old element or have the machine model and serial number ready.

Specifications

Fits / Applications

• Kubota KX121-2, KX121-3, KX161-2 and KX161-3 excavators
• Kubota KX018-4, KX030-4, KX033-4, KX057-4 and KX080-3 excavators
• Kubota KX41-2, KX61-2, KX71-3, KX91-2 and KX91-3 excavators
• Kubota U15, U17, U25S, U27-4, U35, U45 and U55 excavators
• Kubota R310, R420 and R520 wheel loaders and the SCL1000
• Kubota L175, L225, L2500, L2600, L285 and L3000 tractors
• Older machines that listed 15221-43080, such as the L245, L295, L345, KX41H, KX71, KX101, KX151, R400, R410 and R510
• Listed by engine dealers for the D722, D902, D905, D1005, V1305, V1505, V2203, V2403 and Z482

Bleed the air out of the fuel system after you fit the new element.

Part Numbers & Cross Reference

Kubota 15221-43170  ·  Kubota (older number) 15221-43080  ·  Kubota (linked number, discontinued) 70000-43081

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

Which machines use the 15221-43170 fuel filter element?

Kubota dealer catalogs list it for KX excavators such as the KX121-3, KX161-3, KX057-4 and KX080-3, the U15, U17, U25S, U27-4, U35, U45 and U55, the R310, R420 and R520, the SCL1000 and older L series tractors such as the L175, L225 and L2500.

Will it fit my BX tractor or RTV?

BX tractors, the RTV900, RTV1100 and ZD mowers are not on the dealer fit lists for this element. Dealer catalogs list the small in-line filter 12581-43012 for those machines.

What numbers does it replace?

It replaces Kubota 15221-43080. Two engine dealers also link it with 70000-43081, a number a Kubota dealer catalog now shows as discontinued.

How do I make sure it is the right element?

Match the number on your old element, or call 530-668-0818 with the machine model and serial number.

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.