HomeBelts and Cooling > Water Pump and Related ComponentsDayco DP903 Engine Water Pump
Part #: DP903

Dayco DP903 Engine Water Pump

⚙️ 14 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: Ford and Mazda, B2300, B2500, and Ranger
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Reliable Engine Water Pump for Ford and Mazda Vehicles

The Dayco DP903 engine water pump is designed to maintain optimal engine temperature for Ford B2300, B2500, and Ranger models, as well as Mazda vehicles. This component ensures efficient coolant circulation, helping prevent overheating and engine damage.

  • Compatible with Ford B2300, B2500, Ranger, and select Mazda models
  • Engineered to meet OEM specifications for reliable performance
  • Durable construction for long-lasting operation
  • Part number DP903 for precise identification and fitment
  • Designed for effective coolant flow and temperature regulation

Product Details and Specifications

The Dayco DP903 engine water pump is a critical component in the cooling system of Ford B2300, B2500, and Ranger trucks, as well as compatible Mazda models. It is manufactured to provide consistent coolant circulation through the engine block and radiator, helping maintain the engine’s optimal operating temperature. This pump is built with durable materials to withstand the demands of daily driving and varying operating conditions. The DP903 part number ensures compatibility and ease of replacement for these specific vehicle models.

Applications and Problem Solving

  • Prevents engine overheating by maintaining coolant flow
  • Replaces worn or leaking water pumps in Ford B2300, B2500, Ranger, and Mazda vehicles
  • Addresses coolant circulation issues that can cause engine performance problems
  • Helps avoid engine damage due to inadequate cooling
  • Restores proper engine temperature regulation for improved efficiency

Installation Notes and Tips

When installing the Dayco DP903 engine water pump, ensure the cooling system is fully drained before removal of the old pump. Clean the mounting surface thoroughly to prevent leaks. Use a new gasket or sealant as recommended by the vehicle manufacturer. Torque bolts to the specified values to avoid damage. After installation, refill the cooling system and bleed air pockets to ensure proper coolant flow.

Quality Assurance and Warranty

Dayco manufactures the DP903 engine water pump to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Refer to Dayco’s official documentation for exact warranty terms.

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2001FordRanger2.5LL4N/ACompatible with vehicles equipped with serpentine belt driven systems.
2001MazdaB2500N/ACompatible with vehicles equipped with serpentine belt driven systems.
2000FordRanger2.5LL4N/ACompatible with vehicles equipped with serpentine belt driven systems.
2000MazdaB2500N/ACompatible with vehicles equipped with serpentine belt driven systems.
1999FordRanger2.5LL4N/ACompatible with vehicles equipped with serpentine belt driven systems.
1999MazdaB2500N/ACompatible with vehicles equipped with serpentine belt driven systems.
1998FordRanger2.5LL4N/ACompatible with vehicles equipped with serpentine belt driven systems.
1998MazdaB2500N/ACompatible with vehicles equipped with serpentine belt driven systems.
1997FordRanger2.3LL4N/ACompatible with vehicles equipped with serpentine belt driven systems.
1997MazdaB2300N/ACompatible with vehicles equipped with serpentine belt driven systems.
1996FordRanger2.3LL4N/ACompatible with vehicles equipped with serpentine belt driven systems.
1996MazdaB2300N/ACompatible with vehicles equipped with serpentine belt driven systems.
1995FordRanger2.3LL4N/ACompatible with vehicles equipped with serpentine belt driven systems.
1995MazdaB2300N/ACompatible with vehicles equipped with serpentine belt driven systems.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.