Product Description: Comprehensive Engine Cylinder Piston Gasket Kit Fitment: This engine cylinder piston gasket kit is designed for perfect compatibility with a range of models, including the Sportrax 400 (1999‑2008), TRX400X (2009‑2014), and XR400R (1996). Ensure your vehicle model matches for optimal performance. OE Number: The kit replaces various part numbers, including 2100 HN1 A70, 12191 KCY 672, 13011 KCY 670, 90601 KA5 000, 13101 KCY 670, 13111 KCY 670, 91301 428 003, 12251 HN1 003, 12100 KCY 670, and 12191 KCY 672. Verify these numbers with your existing parts for a precise fit. Function: Designed to restore optimum engine performance, this kit provides strong power output and excellent sealing capabilities, ensuring your engine runs efficiently and reliably. Exquisite Workmanship: Made from high-quality metal alloy material, this kit features sturdy construction with high hardness. It is rustproof and wear-resistant, ensuring long-lasting durability and performance under various conditions. Excellent Performance: Professionally manufactured for high accuracy and stable performance, this kit offers high reliability and contributes to improved driving safety, making it a top choice for engine maintenance and repair. Upgrade your engine’s performance and reliability with our Comprehensive Engine Cylinder Piston Gasket Kit. Its precise fit, durable construction, and superior functionality make it an essential component for restoring and enhancing your vehicle's power and efficiency.