CYLINDER BASE. FR/RR .020" PAPER, CYLINDER BASE.

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JAMES GASKETS, CYLINDER BASE. FR/RR .020" PAPER
'Type B'. Front & rear. .020" thick fiber reinforced paper. Final crush .016". OEM replacement reference 16774-86D, 16789-04. 'Type B' gasket explained: 'Type B' was introduced on Evolution XL Sportster models in 1986, and will fit all Evo XL models, but also all 84-99 Evo 1340cc models although the Big Twin cylinder base is a bit larger than the gasket. The 'type B' is the only gasket type that 'The Factory' supplied from 1986 onwards for both Evo Big Twin and Evo XL Sportster models. Both type 'A' and type 'B' have identical inner bore diameter, oil hole and stud hole locations. Gaskets for front & rear cylinder are identical. Only difference between the 'A' & 'B' gaskets is the outside perimeter.

Fits: > 84-99 Evo B.T.; 86-22 XL (excl. 08-12 XR1200) (NU)