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Gates 38757 Accessory Drive Belt Tensioner Assembly - Fan and Alternator
OE-Style Belt Tensioner for Accessory Drive Systems
The Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 38757, is built for accessory drive belt systems that need consistent belt control and stable pulley alignment. It uses a steel housing with a smooth/backside pulley contact surface and an OE Exact comparison rating for direct replacement confidence.
Gates 38757 is part of the DriveAlign Premium OE Automatic Belt Tensioner line, a product family focused on OE-level fit and function for demanding engine accessory drives. This tensioner is engineered to maintain proper belt tension under vibration and contamination, helping support reliable operation in daily driving and heavy-duty service.
- Steel construction for durability in the accessory drive belt system
- Automatic belt tensioner assembly with OE Exact comparison rating
- V-ribbed belt application with smooth/backside pulley contact
- Single pulley design with 70 mm outside diameter
- 17 mm bearing bore inside diameter and 33.5 mm width
- Two mounting holes for secure installation
Detailed Product Overview
This accessory drive belt tensioner assembly is designed to keep the serpentine belt properly tensioned as engine speed changes. Gates 38757 helps maintain belt tracking and pulley engagement in applications where consistent tension is critical for alternator, power steering, water pump, and other belt-driven accessory performance. If you are searching for a Gates 38757 belt tensioner or an OE-style automatic belt tensioner for a Gates application, this part is built for direct replacement use.
This part cross-references Litens 910129A for the same application.
Common Problems This Part Can Address
- Belt squeal caused by weak or inconsistent tension
- Serpentine belt flutter from worn tensioner components
- Misalignment concerns from a failing pulley assembly
- Accessory drive noise related to belt control loss
- Reduced belt stability in high-vibration operating conditions
Installation Notes and Tips
Before installation, inspect the belt, idler pulleys, and adjacent accessory drive components for wear or contamination. Confirm pulley alignment and verify the belt follows the correct routing for the vehicle application. For vehicle-specific searches, this Gates 38757 tensioner is commonly referenced for accessory drive belt tensioner replacement needs on Honda Civic and related make/model searches where the OE Exact fitment standard is required.
Quality Assurance
Gates states that its FleetRunner heavy-duty automatic belt tensioner design is engineered to exceed demanding OEM requirements and has been tested under severe vibration and contamination conditions. In laboratory testing, the design lasted up to three times longer than competing aftermarket tensioners.
| Brand | Gates |
|---|---|
| Part Number | 38757 |
| Material | Steel |
| Pulley 1 Flanged | No |
| Bearing Bore Inside Diameter | .67 |
| Bearing Bore Inside Diameter | 17 |
| Width | 1.32 |
| Width | 33.5 |
| Outside Diameter | 2.76 |
| Outside Diameter | 70 |
| Mounting Hole Quantity | 2 |
| Belt Type | V-ribbed |
| Pulley Quantity | 1 |
| Bearing Bore Inside Diameter 1 (in) | .67 |
| Bearing Bore Inside Diameter 1 (mm) | 17 |
| Belt Type | V-ribbed |
| Contact Surface | Smooth/backside |
| Contents | Tensioner assy. |
| OE Comparison Rating | Oe exact |
| Outside Diameter (in) | 2.76 |
| Outside Diameter (mm) | 70 |
| Pulley 1 Flanged | No |
| Width (in) | 1.32 |
| Width (mm) | 33.5 |
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.