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Dayco 89482 Accessory Drive Belt Tensioner Assembly
| Brand | Dayco 89482 |
|---|---|
| Position | Fan and Alternator, Fan and Air Conditioning, Alternator and Water Pump, Fan, Water Pump and Alternator, Main Drive, Fan, and Alternator and Air Conditioning |
| Belt Type | Serpentine |
| Direction | Counter clock wise |
| Number of Pulleys | 1 |
| Pulley 1 Diameter | 74 |
| Pulley 1 Flat | Y |
| Pulley 1 Width | 39.25 |
| Type | Automatic |
| Fits | — |
Automatic tensioner assembly. Maintains proper serpentine belt tension for consistent drive performance.
Serpentine belt system part. Built for accessory drive applications with a single pulley design.
Single-pulley design. Uses a 74 mm flat pulley for smooth belt tracking.
Cross-references ACDelco 38513, CARQUEST 38513 and CNH 87326915 for the same application. See all 35.
Dayco 89482 Accessory Drive Belt Tensioner Assembly
The Dayco 89482 accessory drive belt tensioner assembly is an automatic serpentine belt tensioner built for accessory drive belt system service. It uses a counter clockwise direction and a single pulley to maintain proper belt tension in the serpentine drive system.
For buyers searching for a Dayco 89482 serpentine belt tensioner assembly, this part is a direct-fit style replacement for applications that use a 74 mm pulley with a flat pulley surface and 39.25 mm width. It also cross-references Gates 38513 for the same application.
Key Features
- Accessory drive belt tensioner assembly for serpentine belt systems
- Automatic tensioner design for consistent belt tension
- Counter clockwise rotation
- Single pulley configuration
- 74 mm pulley diameter with flat pulley profile
- 39.25 mm pulley width
- Dayco 89482 part number for catalog matching and replacement lookup
Product Details
This Dayco 89482 tensioner assembly is used in accessory drive belt systems where the serpentine belt must stay properly tensioned across engine-driven accessories. The automatic design helps maintain belt engagement as operating conditions change, while the counter clockwise direction and pulley dimensions support correct fitment in the specified application. It is a practical replacement choice for service work on vehicles and equipment that call for this exact tensioner configuration, including searches for Dayco 89482, serpentine belt tensioner, and accessory drive belt tensioner assembly.
Common Issues This Part Can Address
- Loose or slipping serpentine belt
- Belt squeal caused by weak tension
- Uneven belt tracking across the accessory drive
- Worn tensioner pulley or tensioner arm movement
- Loss of proper belt tension in the drive system
Installation Notes and Tips
Verify pulley diameter, width, rotation direction, and belt routing before installation. Match the replacement to the original tensioner configuration and confirm the serpentine belt path is correct after service. For fitment-based searches, this part is commonly referenced for Cummins and Komatsu applications where the original tensioner specification matches Dayco 89482.
Quality Assurance
Dayco manufactures belt drive components for automotive and heavy-duty service applications. This tensioner assembly is cataloged under Dayco 89482 and is listed with interchange references including Gates 38513, ACDelco 38513, and SKF VKM910513 for the same application.
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