- Replace worn out or broken stock rocker arm shafts with these proven S&S Performance rocker arm shafts
- Fits 1986-later XL models, 1984-2017 Big Twins and S&S V-Series, SB-Series and T-Series engines
- 4 required per motor
Replace worn or damaged stock rocker arm shafts with the high-quality S&S Cycle 90-4006 Rocker Arm Shaft, designed for durable performance in Harley-Davidson and Big Twin engines. This component is an essential upgrade for maintaining optimal engine operation and longevity, especially in engines from 1984 to 2017, including XL models from 1986 onward, as well as S&S V-Series, SB-Series, and T-Series engines. Crafted for ease of installation, this shaft ensures your engine maintains proper valve timing and smooth operation. Its robust construction guarantees reliable performance under demanding riding conditions, making it a trusted choice for enthusiasts and professional mechanics alike.
Features:
- Designed to replace worn or broken stock rocker arm shafts for improved engine reliability
- Compatible with 1986-later XL models, 1984-2017 Big Twins, and S&S V-Series, SB-Series, and T-Series engines
- Set includes four rocker arm shafts per motorcycle for comprehensive replacement
