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Gates 38667 Accessory Drive Belt Tensioner Assembly
| Brand | Gates 38667 |
|---|---|
| Position | Alternator, Fan, Fan, Air Conditioning, Alternator and Water Pump, and Fan and Alternator |
| Material | Steel, steel, steel |
| Pulley 1 Flanged | No |
| Pulley 2 Flanged | Yes |
| Bearing Bore Inside Diameter | 1.18, 1.18, .67 |
| Bearing Bore Inside Diameter | 30, 30, 17 |
| Groove Quantity | 0, 10, 0 |
| Width | 1.57, 1.59, 1.26 |
| Width | 40, 40.5, 32 |
| Outside Diameter | 2.95, 2.91, 2.76 |
| Outside Diameter | 75, 74, 70 |
| Mounting Hole Quantity | 3 |
| Belt Type | V-ribbed |
| Pulley Quantity | 3 |
| 9855 | No |
| Bearing Bore Inside Diameter 1 (in) | 1.18, 1.18, .67 |
| Bearing Bore Inside Diameter 1 (mm) | 30, 30, 17 |
| Belt Type | V-ribbed |
| Contact Surface | Smooth/backside, v-ribbed grooved, smooth/backside |
| Contents | Tensioner assy. |
| Number of Grooves | 0, 10, 0 |
| OE Comparison Rating | Oe improved |
| Outside Diameter (in) | 2.95, 2.91, 2.76 |
| Outside Diameter (mm) | 75, 74, 70 |
| Pulley 1 Flanged | No |
| Pulley 2 Flanged | Yes |
| Pulley 3 Flanged | No |
| Width (in) | 1.57, 1.59, 1.26 |
| Width (mm) | 40, 40.5, 32 |
| Fits | — |
OE improved design. Built to exceed demanding OEM requirements.
Heavy-duty construction. Steel components help it stand up to vibration and contamination.
Automatic belt tensioner. Maintains proper belt tension for reliable accessory drive operation.
Cross-references Continental 49603, Dayco 89498 and Dorman - HELP 38667 for the same application. See all 22.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Accessory Drive Belt Tensioner for OE-Style Performance
Gates DriveAlign Premium OE Automatic Belt Tensioner 38667 is built for accessory drive systems that need stable belt control and consistent pulley alignment. It uses a steel construction with a V-ribbed pulley layout and OE Improved rating to support dependable belt tracking in demanding engine bay conditions.
For drivers searching for a replacement accessory drive belt tensioner assembly for Mercedes-Benz applications, this part number 38667 matches common OE cross-references and is built to meet the needs of accessory belt service on select vehicles.
Key Features
- Brand: Gates DriveAlign Premium OE Automatic Belt Tensioner
- Part number: 38667
- Accessory drive belt tensioner assembly for V-ribbed belt systems
- Steel construction for durable service
- OE Improved rating for OE-style replacement performance
- Three-pulley design with mixed flanged and non-flanged pulley surfaces
- Mounting hole quantity: 3
- Contents: tensioner assembly
Product Details
The Gates 38667 automatic belt tensioner is engineered for accessory drive belt systems that rely on controlled belt tension and smooth pulley operation. Its steel body and pulley set are sized for OE-style fitment, with listed pulley diameters of 75 mm, 74 mm, and 70 mm and widths of 40 mm, 40.5 mm, and 32 mm. The tensioner uses a V-ribbed belt type and a smooth/backside plus grooved contact surface arrangement to support proper belt routing.
Gates positions the DriveAlign Premium OE Automatic Belt Tensioner line as an OE-focused replacement solution for demanding service conditions. In heavy-duty testing, the FleetRunner tensioner family was shown to last longer than many aftermarket alternatives under vibration and contamination exposure, which supports the durability expectations of this product line.
This part cross-references Continental 49603 and Dayco 89498 for the same application. It is also listed among Mercedes-Benz OE-style interchange numbers, making it a relevant search match for Mercedes-Benz accessory drive belt tensioner replacement needs.
Common Problems It Can Help Address
- Belt squeal from weak or inconsistent tension
- Accessory belt flutter or poor tracking
- Noise from a worn tensioner pulley assembly
- Reduced belt stability in high-vibration operation
- Service issues caused by aging OE tensioner components
Installation Notes and Tips
Before installation, compare the pulley layout, mounting points, and belt routing to the original unit. Confirm the V-ribbed belt path and inspect the accessory drive belt, idlers, and adjacent pulleys for wear before replacing the tensioner. For Mercedes-Benz accessory drive belt tensioner replacement work, verify the OE cross-reference and vehicle application before service.
Fits select Mercedes-Benz models listed by OE interchange reference, including applications associated with part number 38667. Verify the exact vehicle match against the original tensioner and belt system before installation.
Quality Assurance
Gates designs the DriveAlign Premium OE line for OE-style replacement performance in accessory drive systems. The FleetRunner heavy-duty tensioner family is validated through vibration and contamination testing to support long service life in demanding operating conditions.
| Year | Make | Model | Position | Notes |
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| No rows match your filter. | ||||