The Cometic C9765 is an Extreme Sealing Technology (EST) rocker box gasket kit designed for Harley-Davidson Evolution Sportster motorcycles (1991–2003 models).

Key Details
Application: Harley-Davidson Evo Sportster (883 and 1200 models from 1991 to 2003).
Kit Contents: Includes every gasket, seal, O-ring, and washer required to rebuild or overhaul both rocker boxes.
Material: Premium steel construction featuring elastomer/Viton coatings for superior leak prevention and high-temperature durability.
Purpose: Replaces stock paper or cork gaskets with multi-layer, reusable, and high-performance sealing materials to stop common top-end oil leaks.

Specs
Product Name Gasket Kit
Type Rocker Box
Model EST
Material Steel
Units Kit
Riding Style Street

Package info
Weight 0.31 lbs
Height 2.25
Length 9.4
Width 7.44

2002-2003 Harley-Davidson XL883R Sportster 883 Roadster
1999-2003 Harley-Davidson XL883C Sportster 883 Custom
1999-2003 Harley-Davidson Sportster 1200 XLH
1999-2001 Harley-Davidson XLH883
1996-2003 Harley-Davidson XL1200S Sportster 1200 Sport
1996-2003 Harley-Davidson XL1200C Sportster 1200 Custom
1991-2003 Harley-Davidson Sportster 883 XLH
1991-1998 , 2002-2003 Harley-Davidson XLH883HUG Sportster 883 Hugger
1991-1998 Harley-Davidson XLH1200
1991-1995 Harley-Davidson XLH883DLX Sportster 883 Deluxe