Cometic, set of cylinder base gaskets FR/RR. .010" RCS

Type 'B'. .010" thick RCS (Rubber Coated Steel), stamped steel core with a .001" thick heat-resistant nitrile rubber coating on both sides. Replacement reference OEM 16774-86D, 16789-04.
Explanation of Type 'A' (old style) and Type 'B' (new style) gaskets: There are 2 types of cylinder base gaskets available for Evolution models. For convenience, we shall call them 'Type A' (old) and 'Type B' (new).
*The 'Type A' gasket was introduced on the 1984 Evolution Big Twin models, and can be used on all 84-99 Evo 1340cc models, fitting perfectly to the contour of the cylinder base. They fit 86-22 Evo XL models, but protrude at the cylinder base. This can be a problem with silicone-beaded base gaskets.
*The 'Type B' gasket was introduced on Evolution XL Sportster models in 1986, and fits all Evo XL models, as well as all 84-99 Evo 1340cc models, although the Big Twin cylinder base is slightly larger than the gasket.
The 'type B' is the only gasket type that 'The Factory' supplied from 1986 onwards for the Evo Big Twin and Evo XL Sportster models.
Both 'A' and 'B' type gaskets have identical inner diameter, oil hole and bolt locations. The gaskets for the front and rear cylinders are identical. The only difference between the 'A' and 'B' gaskets is the outer perimeter.


Specifications


Brand
Cometic


Application
84-99 Evo Big Twin; 88-22 XL Sportster1200 (Excl. 08-12 XR1200) (NU)


OEM
16774-86D, 16789-04


Sales unit
Pack of 2 pcs


Material
Coated Rubber


Diameter
0.01 pulgada


Packaging weight
0.032 kg


HS Code
84849000


Motorcycle family
BIG TWIN, DYNA, FX, FXR, SOFTAIL, SPORTSTER, TOURING


Original name
Cometic, cylinder base gasket set FR/RR. .010" RCS