Gates 39508 Accessory Drive Belt Tensioner Assembly

OE Automatic Belt Tensioner for Ford Applications

The Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 39508, is built for accessory drive belt systems that require consistent belt tension and smooth operation. It is an OE Exact replacement with fit, form, and function aligned to original equipment specifications for select Ford EcoSport, Focus, and Fiesta models.

Gates applies its OE system design experience to this DriveAlign Premium OE Automatic Belt Tensioner line, focusing on rigid manufacturing tolerances and dependable belt control for everyday drivability.

Key Features

• OE Exact replacement for direct-fit service on select Ford vehicles
• Thermoplastic construction for the tensioner body
• Single smooth/backside pulley for V-ribbed belt routing
• 2 mounting holes for OE-style installation points
• Pulley dimensions: 65 mm outside diameter, 24 mm width, 17 mm bearing bore inside diameter
• Flanged pulley: No
• Accessory drive belt tensioner assembly for the belt system

Detailed Description

This Gates accessory drive belt tensioner assembly is engineered for the accessory drive belt system on 2014-2017 Ford Fiesta, 2015-2018 Ford Focus, and 2018-2021 Ford EcoSport models. The smooth/backside pulley design works with V-ribbed belts, while the OE Exact rating supports direct replacement needs where original fit and function matter. Part number 39508 is also referenced under Ford CM5Z 6A228 A for the same application.

As part of the DriveAlign Premium OE Automatic Belt Tensioner product line, this component is built to match original equipment expectations for belt tracking and tension management. If you are searching for a Ford EcoSport belt tensioner, Ford Focus accessory drive belt tensioner, or Ford Fiesta automatic belt tensioner, this part number 39508 is the relevant OE-style service part.

What It Helps Address

• Belt slack that can affect accessory drive performance
• Noise from a worn or unstable belt tensioner assembly
• Uneven belt tracking on V-ribbed accessory drive systems
• Loss of consistent belt tension in the engine accessory drive
• Service replacement needs for OE-style Ford belt tensioner applications

Installation Notes and Tips

• Verify vehicle fitment by year, make, and model before ordering.
• Confirm the belt routing and pulley contact surface match the existing accessory drive setup.
• Inspect the belt, pulleys, and related drive components during service to avoid repeat repairs.
• Use the OE mounting locations and confirm the 2-hole mounting pattern aligns with the original assembly.

Quality Assurance

Gates manufactures this DriveAlign Premium OE Automatic Belt Tensioner to rigid tolerances and specifications intended to match OE fit, form, and function. The OE Exact comparison rating reflects its focus on original-equipment-style replacement for select Ford applications.