236305G - Gearbox Mainshaft Oil Seal Rear -
$8.61
$10.76
Core Plug (Cup Type) for sealing the core holes left in the engine block casting after the sand cores are removed during manufacture.
The cup-shaped plug is pressed into the machined bore and seals against the coolant jacket, completing the cooling circuit. It also acts as a relief point if coolant freezes, helping protect the block from cracking.
Nominal 53mm diameter (measured 52.75mm).
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