Zenoah K700013040 - 3x40 Water Jacket O-Ring for G231PUM and G260PUM  [K700013040]

ZENOAH WATER JACKET O-RING 3X40 G231PUM,G260PUM #700013040 (W/O PACKING)
Price:
AUD$4.53
Brand:
Zenoah
Model:
K700013040
Condition:
Brand New
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O-ring for water jacket maintenance

This O-ring is an RC-scale service part designed to restore the water jacket seal on Zenoah small gas engines. It matches the 3x40 measurement used in the product title and arrives without extra packaging.

Fit this O-ring during cooling system service on compatible Zenoah models and make sure the jacket bore and partnering faces are free from debris before installation. Proper seating on clean surfaces reduces leak risk and helps the engine maintain stable temperatures during tuning and operation.

Practical installation advice: remove all old sealing residue, inspect the groove for any damage, use a light smear of a seal-safe lubricant to ease fitting if required, and check that the ring lies evenly around the jacket before you reassemble the engine.

Compatibility

  • G231PUM
  • G260PUM

Will a damaged O-ring affect engine cooling or temperature readings?

Yes, a compromised O-ring can allow coolant leakage or air ingress, which may alter cooling efficiency and affect temperature stability during tuning runs. Replace any seal that shows deformation.

Can I reuse the original O-ring after removal?

Reusing an old O-ring is not recommended if it shows signs of wear, flattening, or surface damage. For reliable sealing, fit a new 3x40 ring during maintenance.

Should I lubricate the O-ring when installing?

Light lubrication with a seal-compatible oil can ease placement and reduce the chance of twisting, but avoid excessive lubricant that could attract debris into the cooling passages.

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