QuadBoss QBS563907 - Polaris Top End Gasket Kit

Gasket set designed for piston replacement. Includes the head, base and upper gaskets.

• Includes the gaskets gaskets needed to reseal the cylinder and head on one engine
• Designed as a direct-fit replacement to match OEM dimensions for easier assembly
• Helps restore proper compression and prevent coolant and oil leaks
• Made in USA

The QuadBoss QBS563907 top end gasket kit is designed for piston replacement and includes the gaskets needed to reseal the cylinder and head on one engine. The kit includes head, base and upper gaskets to support top-end service and help restore proper compression while preventing coolant and oil leaks.

Key Features & Performance Benefits

• Complete Top-End Gasket Set: Includes head, base and upper gaskets for one engine.
• Direct-Fit Replacement: Designed to match OEM dimensions for easier assembly.
• Leak Prevention: Helps prevent coolant and oil leaks during engine operation.
• Compression Restoration: Supports proper compression after piston replacement.

Key Product Specifications & Technical Data

• Brand: QuadBoss
• Part Number: QBS563907
• Product Type: Powersports top end gasket kit
• Application: Piston replacement
• Gasket Coverage: Cylinder and head resealing
• Gaskets Included: Head, base and upper gaskets
• Fitment Type: Direct-fit replacement
• Country of Manufacture: Made in USA

What's Included in the Box

One QuadBoss top end gasket kit containing the head, base and upper gaskets.

Fitment

Fits 1990 Polaris Trail Blazer 250, 1990 Polaris Trail Boss 250 4X4, 1991 Polaris Trail Blazer 250, 1991 Polaris Trail Boss 250, 1991 Polaris Trail Boss 250 4X4, 1992 Polaris Trail Blazer 250, 1992 Polaris Trail Boss 250, 1992 Polaris Trail Boss 250 4X4, 1993 Polaris Trail Blazer 250 and 1993 Polaris Trail Boss 250.

Fitments:
1985 Polaris Scrambler 250 Base
1986 Polaris Scrambler 250 Base
1987 Polaris Trail Boss 250 4X4 Base
1988 Polaris Trail Boss 250 4X4 Base
1989 Polaris Big Boss 250 4X6 Base
1989 Polaris Trail Boss 250 4X4 Base
1990 Polaris Big Boss 250 4X6 Base
1990 Polaris Trail Blazer 250 Base
1990 Polaris Trail Boss 250 4X4 Base
1991 Polaris Big Boss 250 4X6 Base
1991 Polaris Big Boss 250 6X6 Base
1991 Polaris Trail Blazer 250 Base
1991 Polaris Trail Boss 250 Base
1991 Polaris Trail Boss 250 4X4 Base
1992 Polaris Big Boss 250 4X6 Base
1992 Polaris Big Boss 250 6X6 Base
1992 Polaris Trail Blazer 250 Base
1992 Polaris Trail Boss 250 Base
1992 Polaris Trail Boss 250 4X4 Base
1993 Polaris Big Boss 250 6X6 Base
1993 Polaris Trail Blazer 250 Base
1993 Polaris Trail Boss 250 Base
1993 Polaris Trail Boss 250 4X4 Base
1994 Polaris Trail Blazer 250 Base
1994 Polaris Trail Boss 250 Base
1995 Polaris Trail Blazer 250 Base
1995 Polaris Trail Boss 250 Base
1996 Polaris Trail Blazer 250 Base
1996 Polaris Trail Boss 250 Base
1997 Polaris Trail Blazer 250 Base
1997 Polaris Trail Boss 250 Base
1998 Polaris Trail Blazer 250 Base
1998 Polaris Trail Boss 250 Base
1999 Polaris Trail Blazer 250 Base
1999 Polaris Trail Boss 250 Base
2000 Polaris Trail Blazer 250 Base
2000 Polaris Xplorer 250 4X4 Base
2001 Polaris Trail Blazer 250 Base
2001 Polaris Xplorer 250 4X4 Base
2002 Polaris Trail Blazer 250 Base
2002 Polaris Xplorer 250 4X4 Base
2003 Polaris Trail Blazer 250 Base
2004 Polaris Trail Blazer 250 Base
2005 Polaris Trail Blazer 250 Base
2006 Polaris Trail Blazer 250 Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Clearance Item: t
Regular Stock: false
Units Per Sku: 1