Gates 9640HD Accessory Drive Belt

Heavy-Duty V-Belt for Jeep Accessory Drives

Gates 9640HD is a High Capacity V-Belt (Heavy-Duty) built for accessory drive systems that see sustained load. It uses EPDM construction with a notched profile and a polyester cord for durability in demanding belt drives, including Jeep power steering and air conditioning applications.

The FleetRunner Heavy-Duty line is Gates’ heavy-duty belt family, identified by its distinct green overcord and engineered for longer service life in severe-duty use. This belt is sized at 13 mm top width, 38-degree angle, 64.38-inch outside circumference, and 64-inch effective length for the listed Jeep applications.

Key Features

• Gates 9640HD High Capacity V-Belt (Heavy-Duty)
• EPDM belt material for heavy-duty accessory drive service
• Notched construction for flexible operation around pulleys
• Polyester cord material with HC50 section
• 13 mm top width and 38-degree belt angle
• 64.38-inch outside circumference and 64-inch effective length
• FleetRunner Heavy-Duty design with Gates green overcord

Detailed Product Overview

Gates 9640HD is an accessory drive belt for vehicles that require a heavy-duty V-belt profile. It is listed for 1972-1974 Jeep CJ5, Wagoneer, Cherokee, J10, and J20 applications in power steering and air conditioning or air conditioning and air pump positions. This part cross-references Dayco 17640 and Continental 17641 for the same application.

For buyers searching Jeep CJ5 accessory drive belt, Jeep Wagoneer power steering belt, or 1974 Jeep Cherokee air conditioning belt, this part number provides a direct match to the specified belt dimensions and fitment notes. Gates 9640HD is also referenced by multiple aftermarket and OE-style part numbers, making it a practical replacement choice when matching an existing heavy-duty V-belt specification.

Common Problems This Belt Can Address

• Squealing or slipping accessory drive belt
• Cracking, glazing, or visible wear on the belt ribs and edges
• Loss of belt tension from age-related stretch
• Accessory drive noise under load from power steering or A/C operation
• Replacement needs for a worn Jeep CJ5, Wagoneer, Cherokee, J10, or J20 belt

Installation Notes and Tips

Verify belt length, top width, and pulley routing before installation. Confirm the application notes for your Jeep CJ5, Wagoneer, Cherokee, J10, or J20, especially the listed power steering, air conditioning, and air pump configurations. Inspect pulleys and belt alignment at the same time, since worn pulleys or misalignment can shorten belt life.

After installation, check belt tension according to the vehicle service procedure and recheck routing after the engine has run through a heat cycle. For searchers comparing Gates 9640HD, 9640HD, and FleetRunner heavy-duty V-belt options, matching the listed dimensions is the key step.

Quality Assurance

Gates FleetRunner Heavy-Duty V-belts are built for heavy-duty applications using patented EPDM construction and a distinct green overcord for added durability and longer service life in demanding drives.