HomeBelts and Cooling > Water Pump and Related ComponentsDorman 300-939 Engine Water Pump Pulley
Part #: 300-939

Dorman 300-939 Engine Water Pump Pulley

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⚙️ 38 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, DeVille, Eldorado, Seville, Fleetwood, and Allante
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Durable Engine Water Pump Pulley for Cadillac Vehicles

The Dorman 300-939 engine water pump pulley is designed to provide reliable performance for select Cadillac models. Engineered from steel with a black finish, this serpentine pulley is built to meet standard replacement requirements and ensure proper belt alignment and tension.

  • Constructed from durable steel material for long-lasting use
  • Black color finish for corrosion resistance and aesthetic consistency
  • Serpentine pulley type compatible with serpentine belt systems
  • Bolt-on attachment with three 0.35-inch diameter bolt holes for secure installation
  • Dimensions: 5.16 inches diameter, 4.23 inches width, and 1.16 inches depth

Product Details and Specifications

The Dorman 300-939 water pump pulley is specifically designed for Cadillac Allante, DeVille, Eldorado, Fleetwood, and Seville models. Its steel construction ensures strength and durability under engine operating conditions. The pulley features a serpentine groove type, which is compatible with serpentine belt systems commonly used in these Cadillac vehicles. The bolt-on design includes three bolt holes with a diameter of 0.35 inches, allowing for straightforward installation without the need for additional hardware. The black finish helps resist corrosion and maintains the original equipment appearance.

Compatible Cadillac Models and Applications

This engine water pump pulley is compatible with the following Cadillac models:

  • Cadillac Allante
  • Cadillac DeVille
  • Cadillac Eldorado
  • Cadillac Fleetwood
  • Cadillac Seville

Use the Dorman 300-939 pulley to replace worn or damaged pulleys in these vehicles to maintain proper engine cooling system function.

Common Issues Addressed by This Pulley

  • Worn or damaged pulley causing belt slippage
  • Corroded pulley affecting belt alignment
  • Noise or vibration from a failing water pump pulley
  • Improper belt tension leading to cooling system inefficiency
  • Replacement of broken or cracked pulleys

Installation Notes and Tips

The Dorman 300-939 pulley is a bolt-on replacement designed for ease of installation. Note that installation hardware and instructions are not included, so retain original bolts or acquire appropriate fasteners. Ensure the serpentine belt is properly aligned and tensioned after installation to avoid premature wear. It is recommended to inspect the water pump and belt condition during replacement to ensure overall system reliability.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed standard replacement specifications. The 300-939 engine water pump pulley undergoes quality checks to ensure fit, form, and function for Cadillac vehicles. While specific warranty details are not provided, Dorman typically offers limited warranties on their replacement components. Verify warranty terms with the product documentation or supplier.

This part fits 38 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1995CadillacDeVille4.9LV8N/A
1994CadillacDeVille4.9LV8N/A
1993CadillacDeVilleN/A
1993CadillacEldorado4.9LV8N/A
1993CadillacSeville4.9LV8N/A
1992CadillacDeVilleN/A
1992CadillacEldoradoN/A
1992CadillacFleetwoodN/A
1992CadillacSevilleN/A
1991CadillacDeVilleN/A
1991CadillacEldoradoN/A
1991CadillacFleetwoodN/A
1991CadillacSevilleN/A
1990CadillacDeVilleN/A
1990CadillacEldoradoN/A
1990CadillacFleetwoodN/A
1990CadillacSevilleN/A
1989CadillacDeVilleN/A
1989CadillacEldoradoN/A
1989CadillacFleetwoodN/A
1989CadillacSevilleN/A
1988CadillacAllanteN/A
1988CadillacDeVilleN/A
1988CadillacEldoradoN/A
1988CadillacFleetwoodN/A
1988CadillacSevilleN/A
1987CadillacAllanteN/A
1987CadillacDeVilleN/A
1987CadillacEldoradoN/A
1987CadillacFleetwoodN/A
1987CadillacSevilleN/A
1986CadillacDeVilleN/A
1986CadillacEldoradoN/A
1986CadillacFleetwood4.1LV8N/A
1986CadillacSevilleN/A
1985CadillacDeVille4.1LV8N/A
1985CadillacEldorado4.1LV8N/A
1985CadillacSeville4.1LV8N/A

* 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:

1627356

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.