Gates 38161 Accessory Drive Belt Tensioner Assembly

OE Automatic Belt Tensioner for Ford and Mercury

Restore proper accessory drive belt tension with this Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 38161. It is built for OE fit, form, and function, with rigid manufacturing tolerances for consistent belt control on the Ford Explorer and Mercury Mountaineer.

The DriveAlign Premium OE Automatic Belt Tensioner line is Gates’ OE-focused replacement range for accessory drive systems. This tensioner assembly uses a steel body, a smooth/backside pulley contact surface, and a V-ribbed belt design to maintain stable belt tracking in the accessory drive belt system.

• Fits 1996-2001 Ford Explorer, N/A
• Fits 1997-2001 Mercury Mountaineer, N/A
• Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 38161
• Steel construction for accessory drive belt system service
• Single smooth/backside pulley with V-ribbed belt application
• OE Improved comparison rating for OE-style replacement needs
• Two mounting holes for direct tensioner assembly installation

This automatic belt tensioner is used to maintain correct serpentine belt tension as engine components wear and belt length changes over time. On Ford Explorer and Mercury Mountaineer applications, proper tension helps keep the accessory drive system operating smoothly and reduces belt-related noise and tracking issues. This part cross-references Continental 49257 for the same application.

Common Problems This Part Can Address

• Belt squeal from weak or inconsistent tension
• Serpentine belt flutter or poor tracking
• Accessory drive noise caused by a worn tensioner pulley
• Loss of belt tension after mileage accumulation
• Irregular belt engagement in the drive belt system

Installation Notes and Tips

Inspect the serpentine belt, idler pulleys, and related accessory drive components before installation. Confirm pulley alignment and mounting surface condition, and verify the belt routes correctly after the tensioner is installed. For Ford Explorer and Mercury Mountaineer service, compare the original unit to part number 38161 before removal to confirm OE-style fitment.

Quality Assurance

Gates manufactures this DriveAlign Premium OE Automatic Belt Tensioner to rigid tolerances and specifications so it matches OE fit, form, and function for the listed applications.