S&S Cycle 90-4006 Rocker Arm Shaft — Twin Cam & XL Engines (Set of 4)

S&S Cycle 90-4006 Rocker Arm Shaft — Twin Cam & XL Engines

Rebuild your valve train with confidence using the S&S Cycle 90-4006 Rocker Arm Shaft. Made in the USA and engineered for precise fit, this set of four rocker arm shafts is designed for Harley-Davidson Twin Cam and XL engines — as well as S&S V-series, SB-series, and T-series powerplants. Whether you’re doing a full engine rebuild or replacing worn components, the 90-4006 delivers the durability and accuracy your valve train demands.

• Includes four rocker arm shafts — ideal for complete engine rebuilds
• Designed specifically for Twin Cam and XL engines
• Compatible with S&S V-series, SB-series, and T-series engines
• Precision-engineered for exact fit and long-term reliability
• Constructed to handle high-performance valve train stresses
• Made in the USA by S&S Cycle

Specifications

• Part Number: 90-4006
• SKU: 90-4006
• Brand: S&S Cycle
• Weight: 0.4 lbs
• Country of Manufacture: USA
• Compatibility: Harley-Davidson Twin Cam, XL (Sportster), S&S V-series, SB-series, T-series engines