Kimpex Pro Series Drive Belt for Ski-Doo Alpine 640 ER 1970

Kimpex Pro Series Drive Belt for Ski-Doo Alpine 640 ER

This Kimpex Pro Series drive belt is a direct-fit replacement belt for the 1970 Ski-Doo Alpine 640 ER snowmobile, engineered to transfer power from the engine clutch to the driven clutch.

Overview

The Kimpex Pro Series Drive Belt for Ski-Doo Alpine 640 ER is a replacement belt built to keep your vintage snowmobile moving on the trail. This drive belt for Ski-Doo Alpine 640 ER delivers consistent power transfer between the primary and secondary clutches so acceleration stays smooth. It suits riders maintaining or restoring a 1970 Alpine 640 ER who need a dependable belt without chasing discontinued originals.

Built For Performance

• Kimpex Pro Series construction for consistent power transfer under load
• Reinforced cord design resists stretching under repeated clutch engagement
• Heat-resistant rubber compound handles the friction heat of clutch operation
• Tuned dimensions for proper belt deflection on the Alpine 640 ER clutching system
• Direct replacement fit for the OEM belt position, no modification required
• Suited to both trail riding and utility work in cold-weather conditions

Fits These Machines

• for Ski-Doo Alpine 640 ER (1970)

On-The-Job Use

• Replacing a worn, glazed, or stretched drive belt on a vintage Alpine
• Trail and backcountry riding where consistent clutch engagement matters
• Utility hauling and grooming tasks on snow
• Seasonal maintenance and restoration projects for classic Ski-Doo machines

Specs At A Glance

Good To Know

Q: How often should a drive belt be replaced? A: Replace it when you notice glazing, fraying, missing cogs, or a belt that sits too low in the secondary clutch. A stretched belt causes sluggish engagement and lost top speed.

Q: Can I install this belt myself? A: Yes, drive belt replacement is a common DIY job that involves opening the secondary clutch and rolling the new belt into place. Check belt deflection and alignment afterward for best performance.

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