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Lister ST1 Top End Decoke Gasket Set - Lister P/N 657-23503
High quality Lister ST1 single cylinder engine De-coke or top gasket sets, these aftermarket and genuine (when available) gaskets sets are equivalent to Lister P/N 657-23503. For air cooled single cylinder engines made between 1975 - 1985.
Other Lister part numbers for this set: 657-12500, 657-12502, 657-12501.
Genuine sets are new old stock and may show signs of long-term storage, all aftermarket sets are new.
Important Note: Please choose carefully, gasket sets that have been opened are non-refundable, unless we have sent you something that was incorrect. If you have any doubts about choosing the correct gasket set, please contact us with your engine number and we will check for you.
Decarbonising
The original manufacturer recommendations recommend that the ST1 is decarbonised after about every 1500 hours of run time, or sooner if engine shows loss of compression or blow-by past the piston. This will require the top end gasket set.
