- This valve spring is of high quality and suitable for our cylinder heads.
- Kubota engine
- Z400-Z402, Z482, Z602
- D662, D662-E D662-EB D662-E2B, 3D64
- D722, D722EBH, D772B, D722-E-BX, D722-E2-BX-2, D722-E3-BX-2, D722-E4-BX-1, D722-E4
- This Kubota valve spring is of high quality and suitable for our cylinder heads.
- Kubota Engine
- D905, D1005, D1105, D1105-E2B, D1105-E3B, D1105-E4B
- V1205, V1205-B, V1205B, V1205E
- V1305, V1305T, V1305-D18, V1305-E-D12, V1305E
- This valve spring is of high quality and suitable for our cylinder heads.
- Kubota Engine
- D650 | D750 | D850 | D950 | Z482 | Z500 | ZB500
- D750, D750-B, D750-A
- D850, D850BH, D850-5B
- This valve spring is of high quality and suitable for our cylinder heads.
- Engine
- S3L, S3L2, S4L, S4L2
- OEM for reference:
- 31A0401301
- This valve spring is of high quality and suitable for our cylinder heads.
- Engine
- 4TNV88
- Engine information: 4 Cylinder
- Bore : 3.46 in (88.00 mm)
- This valve spring is of high quality and suitable for our cylinder heads. Kubota Engine
- D1703, D1803, V2203, V3300, V3600
- Kubota
- L2501 HST, Kubota L2501, Kubota L3240 GST, Kubota L3240 HST, Kubota L3240, Kubota L3300 GST, Kubota L3300, Kubota L3400 HST, Kubota L3400, Kubota L3410 GST, Kubota L3410 HST, Kubota L3410, Kubota L3430, Kubota L35
- KX037-4, KX91-3S2, U35-3S2, U35-4, U36-4
- This valve spring is of high quality and suitable for our cylinder heads.
- Engine
- 3TNV70, 3TNV76
- OEM for reference:
- 119717-11131
Valve Springs for Mini Tractors
What is a valve spring and why is it important?
A valve spring is a vital component in the engine of your mini tractor. It is responsible for keeping the engine valves closed when they are not being actuated by the camshaft, ensuring proper compression and timing. By controlling the movement of the valves, the valve spring maintains efficient airflow, smooth combustion, and stable engine performance.
A weakened or broken valve spring can lead to valve float, loss of power, engine misfiring, or even severe engine damage. Replacing faulty valve springs in time is critical to keeping your mini tractor reliable and efficient.
How to choose the right valve spring?
The correct valve spring depends on the engine make, model, and specifications of your mini tractor. Valve springs differ in size, coil strength, and material to match the design requirements of different engines.
Not sure which valve spring is right for your machine? Contact our customer service – we’ll help you choose the correct part for your mini tractor.
Replacing a valve spring
Replacing a valve spring can be more complex than basic maintenance, but with the right tools it is manageable. Always consult the manual for your tractor. General steps:
- Preparation: Park the tractor, switch off the engine, disconnect the battery, and remove the cylinder head cover.
- Remove old spring: Using a valve spring compressor, carefully remove the valve retainer and old spring.
- Install new spring: Place the new valve spring in position and reinstall the retainer securely.
- Reassembly: Refit the cylinder head cover and all removed components.
- Final check: Start the engine and ensure smooth idle, stable performance, and no abnormal noises.
A high‑quality valve spring ensures proper valve timing, protects the engine, and maintains the long‑term efficiency of your mini tractor.
Why choose Shop4trac for valve springs?
At Shop4trac, we stock only high‑quality valve springs from trusted manufacturers. Every spring is tested for durability, strength, and compatibility with different mini tractor engines. With fast shipping and expert support, you can be confident that your machine will remain in peak condition.
Whether for Iseki, Yanmar, Kubota, or Shibaura – Shop4trac provides the right valve spring and professional service.
