HomeBelts and Cooling > Water Pump and Related ComponentsDayco DP803 Engine Water Pump
Part #: DP803

Dayco DP803 Engine Water Pump

⚙️ 41 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, Lincoln, and Mercury, Crown Victoria, Grand Marquis, Marauder, Mustang, and Town Car
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Reliable Engine Water Pump for Ford, Lincoln, and Mercury Vehicles

The Dayco DP803 engine water pump is designed to maintain optimal engine temperature for select Ford, Lincoln, and Mercury models. Engineered to meet OEM specifications, this water pump ensures consistent coolant flow and helps prevent overheating in your vehicle.

  • Compatible with Ford Crown Victoria, Lincoln Town Car, Mercury Grand Marquis, Ford Mustang, and Mercury Marauder
  • Meets or exceeds OEM standards for durability and performance
  • Precision-engineered for efficient coolant circulation
  • Durable construction to withstand high engine temperatures
  • Part number DP803 for easy identification and replacement

Product Details and Specifications

The Dayco DP803 engine water pump is a critical component in the cooling system of your vehicle. It circulates coolant through the engine block and radiator, helping to regulate engine temperature and prevent overheating. This pump is specifically designed for use in Ford Crown Victoria, Lincoln Town Car, Mercury Grand Marquis, Ford Mustang, and Mercury Marauder models, ensuring proper fitment and reliable operation. Manufactured with quality materials, the DP803 maintains consistent performance under demanding conditions, supporting engine longevity and efficiency.

Compatible Vehicles and Applications

  • Ford Crown Victoria engine water pump replacement
  • Lincoln Town Car cooling system component
  • Mercury Grand Marquis water pump upgrade
  • Ford Mustang engine cooling maintenance
  • Mercury Marauder water pump repair part

Installation Notes and Tips

When installing the Dayco DP803 water pump, ensure the cooling system is fully drained before removal of the old pump. Clean the mounting surface thoroughly to prevent leaks and verify gasket condition or replacement. Torque bolts to manufacturer specifications to avoid damage. After installation, refill the cooling system and bleed air pockets to maintain proper coolant flow and prevent overheating.

Quality Assurance and Warranty

Dayco manufactures the DP803 water pump to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details are not provided, Dayco products typically come with a limited warranty against defects in materials and workmanship. Consult the product packaging or Dayco’s official resources for exact warranty terms.

This part fits 41 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011FordCrown VictoriaN/ACompatible with vehicles equipped with serpentine belt driven systems.
2011LincolnTown CarN/ACompatible with vehicles equipped with serpentine belt driven systems.
2011MercuryGrand MarquisN/ACompatible with vehicles equipped with serpentine belt driven systems.
2010FordCrown VictoriaN/ACompatible with vehicles equipped with serpentine belt driven systems.
2010LincolnTown CarN/ACompatible with vehicles equipped with serpentine belt driven systems.
2010MercuryGrand MarquisN/ACompatible with vehicles equipped with serpentine belt driven systems.
2009FordCrown VictoriaN/ACompatible with vehicles equipped with serpentine belt driven systems.
2009LincolnTown CarN/ACompatible with vehicles equipped with serpentine belt driven systems.
2009MercuryGrand MarquisN/ACompatible with vehicles equipped with serpentine belt driven systems.
2008FordCrown VictoriaN/ACompatible with vehicles equipped with serpentine belt driven systems.
2008LincolnTown CarN/ACompatible with vehicles equipped with serpentine belt driven systems.
2008MercuryGrand MarquisN/ACompatible with vehicles equipped with serpentine belt driven systems.
2007FordCrown VictoriaN/ACompatible with vehicles equipped with serpentine belt driven systems.
2007LincolnTown CarN/ACompatible with vehicles equipped with serpentine belt driven systems.
2007MercuryGrand MarquisN/ACompatible with vehicles equipped with serpentine belt driven systems.
2006FordCrown VictoriaN/ACompatible with vehicles equipped with serpentine belt driven systems.
2006LincolnTown CarN/ACompatible with vehicles equipped with serpentine belt driven systems.
2006MercuryGrand MarquisN/ACompatible with vehicles equipped with serpentine belt driven systems.
2005FordCrown VictoriaN/ACompatible with vehicles equipped with serpentine belt driven systems.
2005LincolnTown CarN/ACompatible with vehicles equipped with serpentine belt driven systems.
2005MercuryGrand MarquisN/ACompatible with vehicles equipped with serpentine belt driven systems.
2004FordCrown VictoriaN/ACompatible with vehicles equipped with serpentine belt driven systems.
2004FordMustang4.6LV8N/A65mm From Pulley Front Surface to Block Mounting Surface; Serpentine Belt Driven
2004FordMustang4.6LV8N/ACompatible with vehicles equipped with serpentine belt driven systems.
2004LincolnTown CarN/ACompatible with vehicles equipped with serpentine belt driven systems.
2004MercuryGrand MarquisN/ACompatible with vehicles equipped with serpentine belt driven systems.
2004MercuryMarauderN/ACompatible with vehicles equipped with serpentine belt driven systems.
2003FordCrown VictoriaN/ACompatible with vehicles equipped with serpentine belt driven systems.
2003FordMustang4.6LV8N/A65mm From Pulley Front Surface to Block Mounting Surface; Serpentine Belt Driven
2003FordMustang4.6LV8N/AAuxiliary Water Pump; Serpentine Belt Driven
2003LincolnTown CarN/ASerpentine Belt Driven; Short Housing
2003MercuryGrand MarquisN/ACompatible with vehicles equipped with serpentine belt driven systems.
2003MercuryMarauderN/ACompatible with vehicles equipped with serpentine belt driven systems.
2002FordCrown VictoriaN/AExc. Police, Short Housing; Serpentine Belt Driven
2002FordMustang4.6LV8N/A65mm From Pulley Front Surface to Block Mounting Surface; Serpentine Belt Driven
2002LincolnTown CarN/ASerpentine Belt Driven; Short Housing
2002MercuryGrand MarquisN/ASerpentine Belt Driven; Short Housing
2001FordCrown VictoriaN/AExc. Police, Short Housing; Serpentine Belt Driven
2001FordMustang4.6LV8N/A65mm From Pulley Front Surface to Block Mounting Surface; Serpentine Belt Driven
2001LincolnTown CarN/ASerpentine Belt Driven; Short Housing
2001MercuryGrand MarquisN/ASerpentine Belt Driven; Short Housing

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