OE Quality
60-Day Returns

Gates 38512 Accessory Drive Belt Tensioner Assembly - Air Conditioning, Fan and Air Conditioning or Fan To Air Conditioning
Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner 38512
The Gates DriveAlign Premium OE Automatic Belt Tensioner 38512 is engineered to maintain optimal tension on V-ribbed accessory drive belts. Designed with durable steel construction and precise dimensions, this tensioner assembly supports reliable belt operation in various vehicle applications, including popular makes and models requiring a 30mm bearing bore diameter.
- Constructed from high-strength steel for durability
- Single pulley design with a smooth backside contact surface
- Compatible with V-ribbed belt systems
- Mounting hole quantity: 1 for secure installation
- Dimensions: 75mm (2.95 in) outside diameter, 40mm (1.57 in) width
- Bearing bore inside diameter: 30mm (1.18 in)
Detailed Product Description and Specifications
This accessory drive belt tensioner assembly features a single pulley without flanges, optimized for V-ribbed belt applications. The smooth backside contact surface reduces belt wear and ensures consistent tension. With a bearing bore inside diameter of 30mm (1.18 inches), the tensioner fits specific vehicle models requiring this precise measurement. The overall pulley diameter measures 75mm (2.95 inches) with a width of 40mm (1.57 inches), providing compatibility with a range of accessory drive belt systems. The steel material construction offers strength and resistance to wear under typical engine operating conditions.
About the DriveAlign Premium OE Automatic Belt Tensioner Line
The DriveAlign Premium OE Automatic Belt Tensioner product line by Gates focuses on delivering original equipment quality and fitment. This line is designed to meet or exceed OEM specifications, ensuring proper belt tension and alignment for accessory drive systems. The 38512 part number is part of this line, providing a reliable replacement option for vehicles requiring precise tensioner dimensions and performance.
Common Applications and Issues Addressed
- Maintains proper tension on V-ribbed accessory drive belts
- Prevents belt slippage and premature wear
- Reduces noise caused by loose or misaligned belts
- Supports smooth operation of alternators, power steering pumps, and air conditioning compressors
- Helps avoid engine accessory drive failures related to tensioner malfunction
Installation Notes and Tips
Ensure the mounting surface is clean and free of debris before installation. Verify the bearing bore diameter and pulley dimensions match the vehicle’s specifications. Use the single mounting hole to secure the tensioner assembly firmly. Proper alignment with the V-ribbed belt is critical to prevent premature belt wear. Consult the vehicle’s service manual for torque specifications and installation procedures specific to the make and model.
Quality Assurance and Warranty
Gates DriveAlign Premium OE Automatic Belt Tensioners are manufactured to meet stringent quality standards. The steel construction and precision engineering contribute to long service life and consistent performance. While specific warranty details for part number 38512 should be confirmed with the supplier, Gates typically offers coverage against defects in materials and workmanship consistent with industry standards.
| Brand | Gates |
| Part Number | 38512 |
| Material | Steel |
| Pulley 1 Flanged | No |
| Bearing Bore Inside Diameter | 1.18 |
| Bearing Bore Inside Diameter | 30 |
| Width | 1.57 |
| Width | 40 |
| Outside Diameter | 2.95 |
| Outside Diameter | 75 |
| Mounting Hole Quantity | 1 |
| Belt Type | V-ribbed |
| Pulley Quantity | 1 |
| Bearing Bore Inside Diameter 1 (in) | 1.18 |
| Bearing Bore Inside Diameter 1 (mm) | 30 |
| Belt Type | V-ribbed |
| Contact Surface | Smooth/backside |
| Contents | Tensioner assy., bolt |
| Outside Diameter (in) | 2.95 |
| Outside Diameter (mm) | 75 |
| Pulley 1 Flanged | No |
| Width (in) | 1.57 |
| Width (mm) | 40 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.