This is the genuine Kubota HH1J0-43172 fuel filter cartridge. Kubota’s parts lists show it as the main fuel filter on common-rail D1803-CR and V2403-CR engines, and engine dealers list it for the D1803 and V2403. Kubota dealer catalogs also list it for the M6-131 and M6-141, the M7 series from M7-131 to M7-174, the M126GX and M135GX, the KX057-5 and U55-5 excavators and the R430 wheel loader.
It replaces the older numbers HH1J0-43170 and 1J521-43170. Kubota uses several cartridges that look alike. The L3560, the MX4800, MX5200 and MX5800 and the KX040-4 are listed with a different one, 1J800-43172. The water separator on the same engines also takes its own filter. Match the number on your old filter or have the machine or engine model and serial number ready.
Confirm Fitment Before You Order
Kubota fuel filter cartridges look alike and are picked by machine. Dealer catalogs list a different cartridge, 1J800-43172 (older number 1J800-43170), for the L3560, MX4800, MX5200, MX5800, M6060, M7060 and KX040-4. Have the machine or engine model and serial number ready, or the number on your old filter. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | HH1J0-43172 |
| Brand | Kubota |
| Condition | New, genuine, in original packaging |
| Warranty | Kubota genuine parts warranty: 1 year against defects in materials or workmanship. |
| Type | Fuel filter cartridge |
| Engines | Kubota D1803-CR, V2403-CR (common rail) |
| Machines | Kubota M6-131, M6-141, M7-131 to M7-174, M126GX, M135GX, KX057-5, U55-5, R430 |
| Replaces | HH1J0-43170, 1J521-43170 |
| Part weight | About 1.4 lb (0.65 kg) |
| Shipping weight | 2 lb |
Fits / Applications
- Kubota D1803-CR and V2403-CR common-rail engines
- Kubota M6-131 and M6-141 tractors
- Kubota M7 series tractors, M7-131 to M7-174
- Kubota M126GX and M135GX tractors
- Kubota KX057-5 and U55-5 excavators
- Kubota R430 wheel loader
- Kubota D1803-CR-E4B-KEA-2 parts book: listed from engine serial 7JQ0001. Before that the book lists HH1J0-43170.
- Kubota V2403-CR-TIE4B-KEA-1 parts book: listed from engine serial 7JQ0001. Before that the book lists HH1J0-43170.
- On the other side of a serial break? Send us the serial number and we will check which part number Kubota calls for.
Bleed the air out of the fuel system after you change the cartridge. On a common-rail engine, keep everything clean while the filter is off.
Part Numbers & Cross Reference
Kubota HH1J0-43172 · Kubota (older number) HH1J0-43170 · Kubota (older number, M126GX and M135GX) 1J521-43170
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 engines and machines take the HH1J0-43172?
Kubota’s parts lists show it on common-rail D1803-CR and V2403-CR engines. Dealer catalogs also list it for the M6-131, M6-141, the M7 series, the M126GX and M135GX, the KX057-5, U55-5 and R430.
Does it replace the HH1J0-43170?
Yes. HH1J0-43170 is the older number, and Kubota’s parts lists and dealers point it to HH1J0-43172. It also replaces 1J521-43170 on the M126GX and M135GX.
Will it fit my L or MX series tractor?
Dealer catalogs list a different cartridge, 1J800-43172, for the L3560 and the MX4800, MX5200 and MX5800. Call 530-668-0818 with the tractor model and serial number and we will find the right one.
Is this the same as the water separator filter?
No. On the D1803-CR and V2403-CR this cartridge is the main fuel filter. The water separator takes its own filter, 1J430-43060 or the newer 1E786-43060.
Related Parts
- Kubota D1803-CR & V2403-CR Mechanical Fuel Feed Pump (KX040-4, U48-5) | Genuine Kubota 1J801-52030
- Kubota B3350 & LX3310/LX3520/LX4020 12 V Electric Fuel Lift Pump | Genuine Kubota 1G639-52035
- Kubota D1703, D1803, V2203 & V2403 (03 Series) Engine Oil Filter Cartridge | Genuine Kubota HH164-32430
- Kubota V2403-CR D1803-CR Injection Pump 1J801-50500 (Genuine)
- Kubota V2403 D1803 Fuel Injector 1J808-53052 (Genuine)
- Kubota V2403 D1803 SCV Suction Control Valve 1J801-50540 (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.
UPS to all 50 states, including Alaska and Hawaii. Your rate shows at checkout. Questions on fitment? Call 530-668-0818.
Pricing covers the unit itself. Any applicable sales tax is additional; shipping is calculated at checkout. Buying tax-exempt? Qualifying diesel repair shops, fleets, farms, and agricultural operations can purchase tax-free. Set up tax-exempt purchasing once and every qualifying order is tax-free going forward.





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