This is the genuine Kubota nut, part number 02156-50080. Kubota’s parts books list this nut in many places: on the starter of the D722, D902, D905, D1005 and D1305, on the exhaust manifold of the D722 and D902 (4 per engine), and on the water pump and water flange of the D1503-M, D1703 and D1803.
It is a small nut used in many spots, so order it by number and by the count your job needs.
Confirm Fitment Before You Order
The engines named on this page are the ones whose Kubota parts books we have checked. For any other engine, send us the engine model and serial number and we will read the part off the Kubota parts list. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | 02156-50080 |
| Brand | Kubota |
| Condition | New, genuine, in original packaging |
| Warranty | Kubota genuine parts warranty: 1 year against defects in materials or workmanship. |
| Type | Nut |
| Kubota name | NUT |
| Used with | Kubota starters, exhaust manifolds, water pumps and water flanges |
| Engines | Kubota Super Mini, 05 and 03 series |
| Quantity | Depends on the spot. See the list |
Fits / Applications
- Kubota D722-E3B and D902-E3B: 4 on the exhaust manifold, plus the starter and alternator
- Kubota D905-E2B, D1005-E4B and D1305-E4B: on the starter
- Kubota D1503-M-E2B, D1703-E2B and D1803-CR: on the water pump and the water flange
- Kubota D1503-M-E2B and D1703-E2B (to serial 7DMZ999): on the cylinder head
- Other Kubota engines: send us the engine model and serial number and we will check the parts list
Tighten to the figure in the Kubota workshop manual for your engine.
Part Numbers & Cross Reference
Kubota 02156-50080.
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
How many do I need?
Depends on the spot. See the list.
My engine is not named here. Will it fit?
Send us the engine model and serial number and we will read the part off the Kubota parts list for that engine.
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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