SPI 09-710215 Top End Gasket Set for Snowmobile Engine Rebuilds

The SPI 09-710215 Top End Gasket Set provides everything needed for a complete cylinder rebuild. Designed and manufactured to OE specifications, these gaskets require no trimming and install without fitment issues. Every material is explicitly selected for temperature, oil, fuel, and coolant resistance, and tested to ASTM standards. Each set is evaluated against strict quality-control benchmarks to ensure it meets or exceeds OEM performance levels.

Key Features:

• Manufactured to OE specifications — no trimming or fitment adjustments required
• Materials tested to ASTM standards for temperature, oil, fuel, and coolant resistance
• Strict quality-control evaluation ensures OE-level or better performance
• Includes reed gaskets, base gaskets, and select intake/exhaust gaskets for cylinder rebuild

AF Gasket Material:

• Composed of non-asbestos nitrile butadiene bonded cellulose fiber
• Commonly used in clutch cover, oil pump, and coolant applications
• Maintains tensile strength and torque retention at operating temperatures well over 300°F

Steel & MLS (Multi-Layer Steel) Gaskets:

• Constructed from multiple layers of stainless steel to resist corrosion and engine chemicals
• Coated and embossed with a fluoroelastomer-based rubber using an on-off pattern for a tight metallic surface seal
• Withstands shearing forces between the cylinder head and cylinder
• Fluoroelastomer coating enhances bonding to imperfect mating surfaces common during engine rebuilds

Seals & O-Rings:

• NBR, Fluoroviton, and silicone materials selected per application based on temperature resistance, abrasion resistance, chemical resistance, and aniline point
• Teflon coating applied on select applications to extend performance life