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Dorman 300-124 Power Steering Pump Pulley
Durable Power Steering Pump Pulley for Cadillac, Oldsmobile, Pontiac
The Dorman 300-124 power steering pump pulley is engineered to restore proper belt alignment and power steering function in select Cadillac, Oldsmobile, and Pontiac vehicles. Designed with precision, this steel pulley ensures reliable performance for models including Allante, Aurora, Bonneville, DeVille, Eldorado, and Seville.
- Constructed from durable steel with a black finish for corrosion resistance
- Features 6 grooves compatible with serpentine belts
- 6.5-inch outside diameter for exact fitment
- Single mounting hole with a 0.663-inch bore diameter
- Standard replacement grade for dependable operation
- Package includes the pulley only; mounting hardware and installation instructions not included
Product Details and Specifications
The Dorman 300-124 power steering pump pulley is designed to meet OEM specifications for a precise fit and function. Its steel construction provides strength and durability, while the black coating helps resist wear and corrosion. The pulley’s 6-groove design is compatible with serpentine belts commonly used in Cadillac Allante, Oldsmobile Aurora, Pontiac Bonneville, and other related models. With a 6.5-inch outside diameter and a 0.663-inch bore, this pulley aligns correctly with the power steering pump shaft, ensuring smooth belt operation and consistent steering performance.
Compatible Vehicles and Applications
This power steering pump pulley is compatible with the following makes and models:
- Cadillac Allante, DeVille, Eldorado, Seville
- Oldsmobile Aurora
- Pontiac Bonneville
Use the Dorman 300-124 pulley to replace worn or damaged pulleys that cause belt slippage or steering issues in these vehicles.
Common Issues Addressed by This Pulley
- Power steering belt slippage due to worn or damaged pulley grooves
- Noise or squealing from misaligned or deteriorated pulleys
- Reduced power steering pump efficiency affecting steering response
- Excessive wear on serpentine belts caused by pulley damage
- Vibration or wobbling from bent or unbalanced pulleys
Installation Notes and Tips
Installation of the Dorman 300-124 power steering pump pulley requires removal of the old pulley and proper alignment on the power steering pump shaft. Note that mounting hardware and installation instructions are not included, so having the correct tools and reference to a vehicle-specific repair manual is recommended. Ensure the serpentine belt is properly routed over the 6-groove pulley to maintain correct tension and avoid premature belt wear.
Quality Assurance and Warranty
Dorman power steering pump pulleys are manufactured to meet standard replacement quality, providing reliable performance for your vehicle’s steering system. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship. For exact warranty terms, consult the product packaging or Dorman’s official resources.
| Brand | Dorman |
| Part Number | 300-124 |
| Belt Type | Serpentine |
| Color | Black |
| Groove Quantity | 6 |
| Installation Instructions Included | No |
| Item Grade | Standard Replacement |
| Material | Steel |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 1 |
| Outside Diameter | 6.5 |
| Package Contents | Pulley |
| Pulley Bore | 0.663 |
This part fits 45 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 2005 | Pontiac | Bonneville | 4.6L | V8 | N/A | 16.8 mm I.D. Shaft |
| 2004 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 2004 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 2004 | Pontiac | Bonneville | 4.6L | V8 | N/A | 16.8 mm I.D. Shaft |
| 2003 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 2003 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 2003 | Oldsmobile | Aurora | N/A | 16.8 mm I.D. Shaft | ||
| 2002 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 2002 | Cadillac | Eldorado | N/A | 16.8 mm I.D. Shaft | ||
| 2002 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 2002 | Oldsmobile | Aurora | 4.0L | V8 | N/A | 16.8 mm I.D. Shaft |
| 2001 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 2001 | Cadillac | Eldorado | N/A | 16.8 mm I.D. Shaft | ||
| 2001 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 2001 | Oldsmobile | Aurora | 4.0L | V8 | N/A | 16.8 mm I.D. Shaft |
| 2000 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 2000 | Cadillac | Eldorado | N/A | 16.8 mm I.D. Shaft | ||
| 2000 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 1999 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 1999 | Cadillac | Eldorado | N/A | 16.8 mm I.D. Shaft | ||
| 1999 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 1999 | Oldsmobile | Aurora | N/A | 16.8 mm I.D. Shaft | ||
| 1998 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 1998 | Cadillac | Eldorado | N/A | 16.8 mm I.D. Shaft | ||
| 1998 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 1998 | Oldsmobile | Aurora | N/A | 16.8 mm I.D. Shaft | ||
| 1997 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 1997 | Cadillac | Eldorado | N/A | 16.8 mm I.D. Shaft | ||
| 1997 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 1997 | Oldsmobile | Aurora | N/A | 16.8 mm I.D. Shaft | ||
| 1996 | Cadillac | DeVille | N/A | 16.8 mm I.D. Shaft | ||
| 1996 | Cadillac | Eldorado | N/A | 16.8 mm I.D. Shaft | ||
| 1996 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 1996 | Oldsmobile | Aurora | N/A | 16.8 mm I.D. Shaft | ||
| 1995 | Cadillac | DeVille | 4.6L | V8 | N/A | 16.8 mm I.D. Shaft |
| 1995 | Cadillac | Eldorado | N/A | 16.8 mm I.D. Shaft | ||
| 1995 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 1995 | Oldsmobile | Aurora | N/A | 16.8 mm I.D. Shaft | ||
| 1994 | Cadillac | DeVille | 4.6L | V8 | N/A | 16.8 mm I.D. Shaft |
| 1994 | Cadillac | Eldorado | N/A | 16.8 mm I.D. Shaft | ||
| 1994 | Cadillac | Seville | N/A | 16.8 mm I.D. Shaft | ||
| 1993 | Cadillac | Allante | N/A | 16.8 mm I.D. Shaft | ||
| 1993 | Cadillac | Eldorado | 4.6L | V8 | N/A | 16.8 mm I.D. Shaft |
| 1993 | Cadillac | Seville | 4.6L | V8 | N/A | 16.8 mm I.D. Shaft |
* 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.