Description
A leaking rocker box gasket compromises engine sealing and can lead to oil contamination and performance degradation. This complete S&S Cycle gasket kit eliminates guesswork by providing all necessary gaskets and O-rings for both rocker boxes in one package, ensuring a factory-spec seal during assembly or rebuild. Whether you’re performing routine maintenance or a full top-end refresh, having OEM-grade gasket materials ready prevents delays and protects your engine’s integrity.
- Manufacturer: S&S Cycle
- Part Number: 90-4091
- Application: Both rocker boxes
- Includes: Complete gasket set
- Includes: All required O-rings
- Material: Factory-specification compounds
- Installation: Bolt-on replacement
- Fitment: Harley-Davidson specific







