Full Gasket Set and Crank Seals for Ski-Doo Formula Plus 521 cc 1985-1987

Full Gasket Set and Crank Seals for Ski-Doo Formula Plus

This full gasket set and crank seal kit is a complete engine reseal package for the Ski-Doo Formula Plus 521 cc snowmobile.

Overview

This full gasket set and crank seal kit provides the seals and gaskets needed to reseal the engine on a Ski-Doo Formula Plus 521 cc machine. It covers the top end, bottom end, and crank seals in one package for a complete rebuild or refresh. Ideal for owners rebuilding a 1985 through 1987 Formula Plus engine.

Built For Performance

• Complete set covering engine gaskets and crank seals
• Engineered for the 521 cc Formula Plus powerplant
• Seals the crankcase to help maintain proper compression
• Includes gaskets for top end and bottom end assembly
• Materials chosen for heat and oil resistance in two-stroke engines

Fits These Machines

• for Ski-Doo Formula Plus, 521 cc, 1985-1987

On-The-Job Use

• Engine rebuilds and top end refreshes
• Resealing a crankcase after a teardown
• Restoring older Formula Plus snowmobiles
• Routine maintenance when oil leaks appear

Specs At A Glance

Good To Know

Q: Does this kit include the crank seals? A: Yes, this set includes both the gaskets and the crank seals for the Formula Plus 521 cc engine. Confirm your model year matches before ordering.

Q: Is this a complete engine reseal kit? A: It is a full gasket set with crank seals, covering the main sealing points for the engine. Some small parts or fasteners may need to be reused or sourced separately.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.