Gates 38191 Accessory Drive Belt Tensioner Assembly

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 38191) is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for Ford vehicles such as the E-350 Club Wagon, E-350 Econoline, Excursion, F-250 Super Duty, and F-350 Super Duty, this tensioner assembly ensures reliable belt performance and longevity.

• Constructed from durable steel materials for strength and longevity
• Includes two pulleys: one flanged and one non-flanged for precise belt guidance
• Compatible with V-ribbed belt types featuring smooth and grooved contact surfaces
• Features a single mounting hole for secure installation
• Outside pulley diameter measures 2.99 inches (76 mm) with widths ranging from 1.46 to 1.5 inches (37 to 38 mm)

Detailed Product Description and Specifications

This accessory drive belt tensioner assembly is designed with two pulleys, where Pulley 1 is non-flanged and Pulley 2 is flanged, providing proper belt alignment and reducing slippage. Both pulleys have an outside diameter of 2.99 inches (76 mm) and widths between 1.46 and 1.5 inches (37 to 38 mm). The bearing bore inside diameter is consistently 0.67 inches (17 mm), ensuring compatibility with OE specifications. The tensioner supports V-ribbed belts, accommodating up to eight grooves on the grooved pulley surface, which enhances grip and belt tracking. The contact surfaces include a smooth backside and a v-ribbed grooved side to match belt profiles accurately.

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner product line by Gates focuses on delivering OE performance and fitment for accessory drive belt systems. This line is engineered to meet original equipment standards, providing consistent tension and alignment to extend belt life and maintain engine accessory function. Part number 38191 is a representative component within this line, designed to fit specific Ford truck and van models requiring precise tensioner specifications.

Common Applications and Problem Resolution

• Maintains proper tension on V-ribbed accessory drive belts
• Prevents belt slippage and misalignment in Ford E-350 and Super Duty models
• Reduces noise and vibration caused by worn or loose tensioners
• Addresses premature belt wear due to improper tension
• Supports reliable operation of engine accessories such as alternators and power steering pumps

Installation Notes and Tips

• Ensure compatibility with Ford E-350 Club Wagon, Econoline, Excursion, F-250, and F-350 Super Duty models before installation
• Verify belt type as V-ribbed and check groove count for proper fit
• Use appropriate tools to remove the old tensioner and install the new assembly securely using the single mounting hole
• Inspect pulleys for smooth rotation and absence of damage during installation
• Follow vehicle manufacturer torque specifications for mounting hardware

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 38191) is manufactured to meet OE performance standards, ensuring durability and reliable operation. Gates provides quality assurance through rigorous testing and material selection, with steel construction for strength. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region and application.