Gates 40G3691 Automatic Continuously Variable Transmission (CVT) Belt - Drive Belt

Gates G-Force CVT Belt 40G3691 Overview

The Gates G-Force CVT Belt 40G3691 is a power sport CVT belt built for demanding trail and work use in vehicles with engines under 800cc. It uses an aramid cord, double-notched construction, and a chloroprene belt body to support consistent operation in continuously variable transmissions.

Gates G-Force WorkHorse CVT belts are part of the G-Force line focused on hard-use power sport applications. This belt is engineered for vehicles that need dependable belt performance under load, making it a direct replacement choice for select ATV and UTV CVT systems.

Key Features

• Part number 40G3691
• Power sport CVT belt for automatic continuously variable transmissions
• Double-notched construction for flexibility and heat management
• Aramid cord material for added tensile strength
• Chloroprene belt material with fabric bottom
• Black finish
• OE performance rating
• Top width: 1.406 in. (36 mm)
• Outside circumference: 38.125 in. (968 mm)
• Cross section designation: RVS-R
• Angle: 26 degrees

Detailed Description

Gates 40G3691 is a G-Force WorkHorse CVT belt engineered for tough tasks and trail conditions in smaller-displacement power sport vehicles. The belt’s aramid reinforcement and double-notched profile are selected to support stable engagement and durability in CVT-driven applications, while the OE performance rating makes it a practical replacement for factory-style service intervals. If you are searching for a Gates CVT belt for ATV or UTV use, 40G3691 is built around the dimensions and construction details that matter most in transmission service.

This part cross-references Gates 40C3691 and 40R3691 for the same application. It is also associated with interchange numbers such as XTX2261 and XTX2290. For buyers comparing Gates 40G3691 against other CVT belt options, the listed width, circumference, and RVS-R section help confirm the correct match before installation.

What It Helps Address

• Slipping or glazed CVT belt surfaces
• Loss of drive engagement under load
• Noise or vibration from a worn transmission belt
• Reduced belt response during acceleration
• Service replacement for a stretched or damaged CVT belt

Installation Notes and Tips

Verify the belt dimensions, section designation, and transmission requirements before installation. Confirm the application against the vehicle’s CVT specifications, especially on ATV and UTV models with engines under 800cc. Inspect the drive and driven pulleys for wear, contamination, or damage before installing the new belt, and follow the vehicle manufacturer’s service procedure for belt break-in and alignment checks.

Quality Assurance

Gates manufactures the G-Force WorkHorse line for demanding power sport service, with construction details selected to meet OE-style performance expectations in CVT applications. Part number 40G3691 is built to the published dimensional and material specifications listed above.