Niche 1523 is a new Cylinder Head Valve and Spring Kit. This Kit includes everything you need to replace your worn out Valves and Valve Springs. Also included a new head gasket cover for a hassle-free installation. Quality and performance guaranteed.

• Designed for the 2001-2014 Polaris Sportsman 400
• Includes Intake Valves, Exhaust Valves, Valve Springs, Valve Spring Retainers and Valve Stem Seals
• Also Includes Valve Cotters and Head Cover Gasket
• Valves and Retainers Made of Hardened, Heat-Treated Alloy
• Engineered and Tested to Exceed Original Equipment Standards and Performance

Designed for the 2001-2014 Polaris Sportsman 400Niche