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Gates 38766 Accessory Drive Belt Tensioner Assembly - Fan
DriveAlign OE Belt Tensioner Overview
Gates DriveAlign Premium OE Automatic Belt Tensioner 38766 is built for accessory drive belt systems that need consistent belt control and OE-style fit. This steel tensioner assembly uses a smooth/backside contact surface and a V-ribbed belt pulley design to maintain proper belt tension in demanding engine bay conditions.
For drivers searching for a Gates 38766 belt tensioner assembly for Honda Civic or Toyota Corolla applications, this part is an OE Exact replacement option for accessory drive belt service.
Key Features
- Steel tensioner assembly for accessory drive belt systems
- OE Exact comparison rating for OE-style replacement fit
- V-ribbed pulley with smooth/backside contact surface
- Single mounting hole design
- Pulley dimensions: 2.91 in. outside diameter and 1.34 in. width
- Bearing bore inside diameter: 0.67 in. / 17 mm
Product Line Details
Gates DriveAlign Premium OE Automatic Belt Tensioner components are engineered for precise belt control in accessory drive systems. The FleetRunner heavy-duty tensioner design is positioned for long service life and was validated in laboratory testing under severe vibration and contamination conditions, where it outlasted competing aftermarket tensioners in durability testing.
Detailed Description
This Gates 38766 automatic belt tensioner assembly is designed for vehicles that rely on a stable serpentine belt path to drive accessories such as the alternator, power steering pump, and air conditioning compressor. Its steel construction, OE Exact rating, and smooth pulley contact surface support consistent belt tracking and tension retention in daily driving and fleet service. If you are replacing a worn belt tensioner on a Honda Civic or Toyota Corolla, this part number 38766 provides a direct-fit service solution for the accessory drive belt system.
This part cross-references Dayco 89475 for the same application.
What It Helps Address
- Belt squeal caused by weak or inconsistent tension
- Serpentine belt flutter or vibration
- Accessory drive belt misalignment
- Premature belt wear from a worn pulley or bearing
- Loss of proper belt tension in the drive system
Installation Notes and Tips
Inspect the serpentine belt, pulley surfaces, and adjacent accessory components before installation. Confirm the belt routing matches the vehicle service diagram and verify pulley alignment after replacement. For Honda Civic and Toyota Corolla service, compare the original tensioner dimensions and mounting style to Gates 38766 before installation.
Quality Assurance
Gates designs this DriveAlign tensioner to meet demanding OEM requirements, and the FleetRunner heavy-duty platform is validated through vibration and contamination testing for durability-focused service applications.
| Brand | Gates |
|---|---|
| Part Number | 38766 |
| Material | Steel |
| Pulley 1 Flanged | No |
| Bearing Bore Inside Diameter | .67 |
| Bearing Bore Inside Diameter | 17 |
| Width | 1.34 |
| Width | 34 |
| Outside Diameter | 2.91 |
| Outside Diameter | 74 |
| Mounting Hole Quantity | 1 |
| 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) | 2.91 |
| Outside Diameter (mm) | 74 |
| Pulley 1 Flanged | No |
| Width (in) | 1.34 |
| Width (mm) | 34 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
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* 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.