Lister LT1 air cooled Diesel, 1 cylinder, 408cc 1974 -

Valve stem seal included. Equates to 657-25999

Weight of set and packing approximately 240g Pack size 245 x353 x 25

The manufacturer recommends that the LT1 is decarbonised after 1000 hours, an exercise that will require many of the gaskets and joints contained in a top set.