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Dayco 89249 Accessory Drive Belt Tensioner Assembly
| Brand | Dayco 89249 |
|---|---|
| Belt Type | Serpentine |
| Direction | Clock Wise |
| Number of Pulleys | 1 |
| Pulley 1 Diameter | 82 |
| Pulley 1 Flat | Y |
| Pulley 1 Width | 27 |
| Type | Automatic, Integral |
| Fits | Buick, Chevrolet, Oldsmobile, and Pontiac · 37 vehicles |
Automatic, integral design. Maintains proper belt tension with a built-in tensioner assembly.
Serpentine belt compatible. Works with serpentine accessory drive systems.
Single-pulley layout. Uses one pulley for a compact, efficient design.
Cross-references ACDelco 38126, CARQUEST 38126 and Dorman 419-120 for the same application. See all 12.
Accessory Drive Belt Tensioner for GM V6 Applications
Dayco 89249 is an automatic accessory drive belt tensioner assembly for serpentine belt systems. It is built for clockwise rotation and uses an integral automatic design to maintain proper belt tension in supported Buick, Chevrolet, Oldsmobile, and Pontiac applications.
Compatible with 1991-1995 Buick Park Avenue, Regal, LeSabre, and Riviera applications, plus select Chevrolet Lumina APV, Oldsmobile 88, 98, Silhouette, Toronado, and Pontiac Bonneville and Trans Sport models, this tensioner supports proper accessory drive operation. Dayco 89249 is also cross-referenced with Gates 38126 for the same application.
Key Features
- Accessory drive belt tensioner assembly for serpentine belt systems
- Automatic, integral tensioner design
- Clockwise rotation
- Single pulley design
- 82 mm pulley diameter with 27 mm pulley width
- Flat pulley surface for belt tracking
- Dayco 89249 replacement part number
Detailed Description
This Dayco accessory drive belt tensioner assembly is specified for vehicles using a serpentine belt layout and an automatic tensioning system. The 82 mm pulley and flat pulley profile help maintain consistent belt contact across the accessory drive path, while the clockwise direction matches the listed OE-style applications. Use Dayco 89249 when replacing a worn or noisy tensioner on GM minivan and passenger car platforms from the early 1990s.
Fits 1992-1995 Buick LeSabre, N/A. Fits 1992-1995 Buick Regal, N/A. Fits 1992-1995 Chevrolet Lumina APV, N/A. Fits 1992-1995 Oldsmobile Silhouette, N/A. Fits 1992-1995 Pontiac Trans Sport, N/A. Fits 1992-1994 Buick Park Avenue, N/A. Fits 1992-1994 Oldsmobile 88, N/A. Fits 1992-1994 Oldsmobile 98, N/A. Fits 1992-1994 Pontiac Bonneville, N/A. Fits 1992-1993 Buick Riviera, N/A. Fits 1992 Oldsmobile Toronado, N/A. Fits 1991 Buick Park Avenue, N/A, 2nd Design. Fits 1991 Oldsmobile 98, N/A, 2nd Design.
What It Helps Solve
- Serpentine belt squeal caused by weak or inconsistent tension
- Belt flutter or tracking issues at the accessory drive
- Noise from a worn tensioner pulley or spring mechanism
- Reduced belt control on high-mileage GM accessory drive systems
- Premature belt wear from improper tension
Installation Notes and Tips
Verify pulley direction, diameter, and belt routing before installation. Compare the existing tensioner to Dayco 89249 to confirm the clockwise configuration and integral automatic style match the vehicle’s original setup. Inspect the serpentine belt, idler pulleys, and accessory drive components at the same time so the new tensioner is installed into a clean, properly aligned system.
Quality Assurance
Dayco is a recognized supplier of accessory drive components, and this tensioner is built to meet the dimensional and application requirements listed for the supported Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Dayco 89249 also cross-references Gates 38126 for the same application.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | Buick | LeSabre | — | — | N/A | — |
| 1995 | Buick | Regal | 3.8L | V6 | N/A | — |
| 1995 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | — |
| 1995 | Oldsmobile | Silhouette | — | — | N/A | — |
| 1995 | Pontiac | Trans Sport | 3.8L | V6 | N/A | — |
| 1994 | Buick | LeSabre | — | — | N/A | — |
| 1994 | Buick | Park Avenue | — | — | N/A | — |
| 1994 | Buick | Regal | 3.8L | V6 | N/A | — |
| 1994 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | — |
| 1994 | Oldsmobile | 88 | — | — | N/A | — |
| 1994 | Oldsmobile | 98 | — | — | N/A | — |
| 1994 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | — |
| 1994 | Pontiac | Bonneville | — | — | N/A | — |
| 1994 | Pontiac | Trans Sport | 3.8L | V6 | N/A | — |
| 1993 | Buick | LeSabre | — | — | N/A | — |
| 1993 | Buick | Park Avenue | — | — | N/A | — |
| 1993 | Buick | Regal | 3.8L | V6 | N/A | — |
| 1993 | Buick | Riviera | — | — | N/A | — |
| 1993 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | — |
| 1993 | Oldsmobile | 88 | — | — | N/A | — |
| 1993 | Oldsmobile | 98 | — | — | N/A | — |
| 1993 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | — |
| 1993 | Pontiac | Bonneville | — | — | N/A | — |
| 1993 | Pontiac | Trans Sport | 3.8L | V6 | N/A | — |
| 1992 | Buick | LeSabre | — | — | N/A | — |
| 1992 | Buick | Park Avenue | — | — | N/A | — |
| 1992 | Buick | Regal | 3.8L | V6 | N/A | — |
| 1992 | Buick | Riviera | — | — | N/A | — |
| 1992 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | — |
| 1992 | Oldsmobile | 88 | — | — | N/A | — |
| 1992 | Oldsmobile | 98 | — | — | N/A | — |
| 1992 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | — |
| 1992 | Oldsmobile | Toronado | — | — | N/A | — |
| 1992 | Pontiac | Bonneville | — | — | N/A | — |
| 1992 | Pontiac | Trans Sport | 3.8L | V6 | N/A | — |
| 1991 | Buick | Park Avenue | — | — | N/A | 2nd Design |
| 1991 | Oldsmobile | 98 | — | — | N/A | 2nd Design |
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