James Gaskets Evolution Sportster Rocker Box Upper Rubber Gasket - Harley Sportster

Ensure a perfect seal on your Evolution Sportster's rocker box with this upper rubber gasket from James Gaskets. Made in the U.S.A. with state-of-the-art materials, it's a direct OEM-replacement for your Harley V-twin.

Why riders pick this

• Direct OEM-replacement for Evo Sportster upper rocker box
• Manufactured in the U.S.A. with advanced materials
• Ensures a reliable, leak-free top end seal
• Engineered for precise fit and long-term durability

A critical component for preventing oil leaks from your Evolution Sportster's top end is a high-quality rocker box upper rubber gasket. James Gaskets delivers a precision-engineered replacement, manufactured in the U.S.A. with advanced materials and production methods to ensure a reliable, long-lasting seal.

Premium Sealing for Your Evo Top End

• Direct OEM-replacement for Evolution Sportster upper rocker box covers
• Manufactured in the U.S.A. with state-of-the-art gasket materials
• Designed for a precise fit and superior sealing performance
• Trusted by performance V-twin riders and builders

Maintain Peak Engine Performance

Addressing rocker box leaks is vital for maintaining proper oil levels and a clean engine. This James Gaskets upper rubber gasket provides the consistent sealing required, especially after top-end work or routine inspections. For best results, always ensure all mating surfaces are clean, dry, and free of any old gasket residue before installation, and follow your Harley-Davidson service manual for proper assembly procedures.

Specifications

• Brand: James Gaskets
• Manufacturer Part #: 17354-89
• Length: 6.85 in
• Width: 9.85 in
• Height: 0.5 in
• Weight: 0.115 lbs

Common questions