Kyosho 74035-01 KE21V Cylinder Head Spare Part  [KY-74035-01]

Kyosho 74035-01 - Cylinder Head(KE21V)
Price:
£51.36
Brand:
Kyosho
Model:
KY-74035-01
GTIN:
4548565513857
Condition:
Brand New
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KE21V Head: Technical Summary

This cylinder head is a replacement component for the KE21V RC engine series and is made to fit directly. It provides combustion chamber sealing and supports the head gasket plus the glow plug assembly used in model nitro engines.

Fit and compatibility: the head is designated for the KE21V family; always check hole alignment and glow plug clearance against your original head before installing. If there is any mismatch, do not fit the part.

Installation notes: ensure all mating surfaces are clean, select the correct head gasket thickness from the engine kit, and tighten the head screws evenly in a crisscross pattern to avoid distortion. Inspect glow plug seating and thread engagement on reassembly. Avoid over-tightening fasteners.

Tuning role: while the head alone does not change core engine geometry, its sealing quality and heat transfer properties influence compression stability and tuning predictability. Replace damaged or warped heads to return the engine to reliable operation.
Remark :
Due to limited stock availability, please notice that some Kyosho items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

How can I verify compatibility before I fit the head?

Measure and compare the bolt pattern and glow plug position with the existing head. If dimensions and clearances do not match, do not proceed with fitting.

What manual techniques help avoid distortion?

Tighten screws in small increments and follow a crisscross sequence to distribute load evenly. Clean surfaces and use the correct gasket to minimise the risk of warping.

When should I suspect the head is the cause of engine trouble?

Suspect the head if you find visible warping, cracks, or damaged sealing faces, or if the engine shows persistent compression loss and unstable running despite normal tuning.

Are there post-fit checks to run after installation?

After fitting, verify glow plug engagement, check for leaks, and run the engine to confirm stable compression and consistent running before finalising settings.

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