Kubota D902, D905, D1105 & V1505 Thermostat, 71°C (160°F) | Genuine Kubota 19434-73015
This is a new, genuine Kubota thermostat assembly, part number 19434-73015. It starts to open at 71°C (160°F). It fits Kubota D902, D905, D1105, V1505 and V2203 diesel engines. Kubota lists it on machines such as the BX1500D and BX2230D, L2600DT and M5700 tractors, U15 and U17 mini excavators, KX41-3 and KX91-3 excavators, and R420S and R520S wheel loaders. It replaces 19434-73010, 19434-73013 and 19434-73014.
Replace it if the engine is slow to warm up or runs hot, and any time the water pump is replaced. The thermostat gasket, Kubota 16221-73270, is a separate part number.
Confirm Fitment Before You Order
Kubota uses several different thermostats across its engine lines. Match the number in your parts list, or send the engine model and serial number, and we will confirm the match. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | 19434-73015 |
| Brand | Kubota |
| Condition | New, genuine, in original packaging |
| Warranty | Kubota genuine parts warranty: 1 year against defects in materials or workmanship. |
| Type | Coolant thermostat assembly |
| Opening temperature | 71°C (160°F) |
| Replaces | 19434-73010, 19434-73013, 19434-73014 |
| Gasket | Kubota 16221-73270, sold separately |
| Engines | Kubota D902, D905, D1105, V1505, V2203 |
| Shipping weight | 1 lb |
Fits / Applications
- Kubota D902, D905 and D1105 diesel engines
- Kubota V1505 and V2203 diesel engines
- Kubota BX1500D and BX2230D tractors
- Kubota L2600DT and M5700 tractors
- Kubota U15 and U17 mini excavators
- Kubota KX41-3 and KX91-3 excavators
- Kubota R420S and R520S wheel loaders
Use a new thermostat gasket (Kubota 16221-73270) and clean both housing faces. Refill and bleed the cooling system, then confirm the engine reaches normal temperature.
Part Numbers & Cross Reference
Kubota (replaced number) 19434-73014 · Kubota (replaced number) 19434-73013 · Kubota (replaced number) 19434-73010
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
Does 19434-73015 replace thermostat 19434-73014?
Yes. It replaces 19434-73010, 19434-73013 and 19434-73014.
Which Kubota engines and machines use the 19434-73015 thermostat?
It fits Kubota D902, D905, D1105, V1505 and V2203 diesel engines. Kubota lists it on machines such as the BX1500D and BX2230D, L2600DT and M5700 tractors, U15 and U17 mini excavators, KX41-3 and KX91-3 excavators, and R420S and R520S wheel loaders.
Does the 19434-73015 thermostat come with a gasket?
No. The thermostat gasket, Kubota 16221-73270, is a separate part number and is sold separately. Use a new gasket and clean both housing faces when you fit the thermostat.
What temperature does 19434-73015 open at, and when should I replace it?
It starts to open at 71°C (160°F). Replace it if the engine is slow to warm up or runs hot, and any time the water pump is replaced.
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- Kubota D905 D1005 D1105 D1305 Radiator Assembly 1G996-72060 (Genuine)
- Kubota 05 Series D905, D1005, D1105 & V1505 Engine Stop Solenoid 12 V | Genuine Kubota 17208-60016
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 can help you match the part number to your engine serial or machine model before you order. See our Kubota engine sales, parts and service.
UPS Ground anywhere in the lower 48. 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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