Tamiya 7684289 FS-18SR Head Gasket - Replacement Part  [7684289]

Tamiya 7684289 - FS-18SR Head Gasket
Price:
£4.34
Brand:
Tamiya
Model:
7684289
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Replacement Tamiya 7684289 FS-18SR head gasket for secure sealing

The Tamiya 7684289 FS-18SR Head Gasket is an essential spares item that restores the seal between the head and cylinder of the FS-18SR engine. Fitting a new gasket prevents compression loss and helps avoid external leaks, which is important for lap consistency and long term engine health.

Key Points

  • Precision Fit: Made to the FS-18SR dimensions to ensure correct head seating and reliable combustion chamber sealing.
  • Durability: Chosen materials stand up to the thermal stress of regular running and occasional hard use.
  • Performance Reliability: A good seal helps maintain steady compression so tuning and throttle behaviour remain consistent.

Will this gasket fit an older FS-18SR build?

Compatibility depends on the exact engine variant. The part is specified for the FS-18SR; check your engine markings or parts list to confirm this Tamiya 7684289 FS-18SR Head Gasket matches your build.

How should I prepare the surfaces before fitting?

Clean both head and block surfaces of old gasket material and deposits, then dry and inspect for flatness. Screw down evenly to avoid distortion of the new gasket.

Is it worth upgrading to an aftermarket gasket?

Most users stick with OEM-spec replacements like the Tamiya 7684289 for reliable fit. Aftermarket options may offer different materials but always check compatibility with FS-18SR dimensions before choosing one.

How will I know the gasket is sealing correctly after install?

After assembly, check for steady idle, consistent throttle response and absence of external leaks. A compression check will confirm the gasket is sealing to specification.

Any maintenance tips to extend gasket life?

Avoid overtightening head screws, run correct fuel mix and keep the engine free of debris. Regular inspection during engine rebuilds will catch early wear and keep the seal reliable.

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