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Gates 38505 Accessory Drive Belt Tensioner Assembly
| Brand | Gates 38505 |
|---|---|
| Position | Air Conditioning, Hub and Alternator, Alternator, Hub and Air Conditioning, Fan and Alternator, and Fan |
| 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 |
| Fits | — |
OE-style replacement. Automatic belt tensioner assembly for straightforward installation.
Steel construction. Built with a durable steel body and smooth-backed pulley.
Heavy-duty design. Engineered to meet demanding OEM requirements.
Cross-references Dayco 89442, Dayco 89484 and Dorman - HELP 38505 for the same application. See all 23.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Gates DriveAlign Premium OE Belt Tensioner
The Gates DriveAlign Premium OE Automatic Belt Tensioner, part number 38505, is built for accessory drive belt systems that need stable belt control and consistent pulley alignment. It uses a steel housing with a smooth/backside contact surface and a V-ribbed belt profile to support reliable operation in demanding engine bays.
Gates 38505 is part of the DriveAlign Premium OE line, which focuses on OE-style fit and function for accessory drive belt system components. For buyers searching for a Gates belt tensioner assembly, Gates 38505, or an OE automatic belt tensioner for accessory drive belt service, this part is built around the dimensions and construction details that matter most.
Key Features
- Accessory drive belt tensioner assembly for V-ribbed belt systems
- Steel construction for durability in engine compartment use
- Smooth/backside pulley contact surface
- Single mounting hole design
- Pulley dimensions: 2.95 in. outside diameter and 1.57 in. width
- Bearing bore inside diameter: 1.18 in. / 30 mm
- Includes tensioner assembly and bolt
Detailed Description
This Gates automatic belt tensioner is engineered for accessory drive belt applications where proper belt tension helps maintain accessory performance and reduce belt-related noise. The 75 mm pulley diameter, 40 mm width, and steel body support consistent belt tracking in systems using a V-ribbed belt. Gates 38505 is a practical replacement choice for drivers and technicians looking for a Gates DriveAlign tensioner assembly with OE-style dimensions.
Cross-reference part numbers for the same application include Dorman - HELP 38505 and Litens 910002A. This part is commonly searched for as a belt tensioner assembly for Ford, Chevrolet, and GMC accessory drive belt service, especially when matching the original tensioner layout is important.
What It Helps Address
- Belt squeal caused by weak or inconsistent tension
- Belt flutter from worn tensioner components
- Accessory drive belt tracking issues
- Noise from a worn pulley bearing
- Reduced belt control in high-vibration operation
Installation Notes and Tips
Verify pulley diameter, width, bearing bore, and mounting style against the original unit before installation. Inspect the belt, idler pulleys, and related accessory drive components at the same time, since worn parts in the belt path can shorten tensioner life. Confirm the belt type is V-ribbed and check that the smooth/backside contact surface matches the original application.
For fitment-based searches, this part is used in vehicle-specific accessory drive belt service and is often referenced for Ford, Chevrolet, and GMC applications. Use the vehicle’s original tensioner specifications to confirm the correct replacement before installation.
Quality Assurance
Gates states that its FleetRunner heavy-duty automatic belt tensioners are engineered to exceed demanding OEM requirements and have shown extended service life in laboratory vibration and contamination testing. That product-line focus supports the OE-style construction and durability expected from Gates 38505.
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| No rows match your filter. | ||||