Cometic C9278 Upper Rocker Box Cover Gaskets are designed for Harley-Davidson Evolution V-Twin engines requiring an upper rocker box cover gasket matching OEM reference 17356-92. This five-piece gasket set supports dependable sealing between the upper rocker box cover and cylinder head, helping protect the valve train area from oil leaks and contamination.
Built by Cometic, a manufacturer known for advanced gasket technology, the C9278 uses carefully selected materials and manufacturing processes to meet the demands of high-performance V-Twin applications. The gasket design is intended to provide a consistent fit and reliable sealing performance when installed on clean, properly prepared mating surfaces.
These upper rocker box cover gaskets are suitable for compatible Harley-Davidson Evolution engine applications and are intended as a replacement for the specified OEM-style gasket. Verify engine model, year, and gasket configuration before installation to confirm fitment. The Cometic C9278 set includes five gaskets, making it a practical choice for servicing multiple covers or keeping replacement components available for future maintenance.
Features:
- Brand: Cometic
- Manufacturer part number: C9278
- Vendor part number: C9278
- Product type: Upper rocker box cover gasket set
- Quantity: Five gaskets per pack
- Fitment: Compatible with select Harley-Davidson Evolution V-Twin engines
- OEM reference: 17356-92
- Application: Replacement sealing components for upper rocker box covers
- Construction: Designed using modern gasket materials, manufacturing processes, and sealing technology