Dayco DP865 Engine Water Pump

Brand Dayco DP865
Fits Ford and Mercury · 230 vehicles

OE-style engine water pump for dependable coolant circulation.

Built for efficient cooling system performance and consistent flow.

$53.67Free shipping
In stock · usually ships same day before 1pm CST
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Dayco DP865 Engine Water Pump

The Dayco DP865 is an engine water pump for V-belt driven cooling systems. It is built for classic Ford and Mercury applications where correct coolant circulation is critical to stable operating temperature. This part number, DP865, is listed for multiple vintage Ford Bronco, Mustang, Econoline, and Mercury models.

Key Features

  • Engine water pump for V-belt driven systems
  • Direct fitment coverage for select Ford and Mercury vehicles
  • Application-specific replacement for vintage cooling system service
  • Part number DP865 for easy identification
  • Compatible with listed 1961-1975 model-year applications

Detailed Description

Dayco DP865 is an engine water pump intended for vehicles equipped with V-belt driven engines. It serves as a replacement cooling-system component for select Ford Bronco, Ford Mustang, Ford Econoline, Ford E-100 Econoline, Mercury Capri, Mercury Villager, Mercury Montego, and Mercury Monarch applications. If you are searching for a Ford Mustang water pump, Ford Bronco engine water pump, or a Mercury Monarch cooling system replacement, DP865 provides a fitment-specific option for the listed vehicles.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

  • Coolant circulation problems caused by a worn water pump
  • Overheating from reduced coolant flow
  • Leakage at the pump housing or seal area
  • Noisy operation from a failing pump bearing
  • Cooling-system service on V-belt driven engines

Installation Notes and Tips

Verify the vehicle’s engine uses a V-belt driven water pump before ordering. Match the year, make, and model exactly to the listed fitment, including notes such as the 1975 Mercury Monarch application limited to vehicles built to 4/12/75. Inspect belts, hoses, and coolant condition during replacement, and confirm pulley alignment before returning the vehicle to service.

Quality Assurance

Dayco is a recognized name in automotive belt and cooling components. DP865 is cataloged for specific vintage Ford and Mercury applications to support accurate parts selection for repair and maintenance.

This part fits 230 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
1975FordGranada3.3LL6To 4/12/75; V-Belt Driven
1975FordMaverick3.3LL6To 4/12/75; V-Belt Driven
1975MercuryComet3.3LL6To 4/12/75; V-Belt Driven
1975MercuryMonarch3.3LL6To 4/12/75; V-Belt Driven
1974FordBronco3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1974FordMaverick3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1974MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1973FordBronco3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1973FordMaverick3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1973MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1972FordBronco2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1972FordMaverick2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1972FordMaverick3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1972MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1972MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1971FordBronco2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1971FordE-100 Econoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1971FordE-200 Econoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1971FordMaverick2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1971FordMaverick3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1971MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1971MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordBronco2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordE-100 Econoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordE-200 Econoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordE-300 Econoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordFalcon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordMaverick2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordMaverick3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordMustang3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordP-1002.8LL6Engine Water Pump for systems with V-Belt Driven engines
1970FordP-3502.8LL6Engine Water Pump for systems with V-Belt Driven engines
1969FordBronco2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1969FordE-100 Econoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1969FordE-200 Econoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1969FordE-300 Econoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1969FordFairlane3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1969FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1969FordFalcon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1969FordMustang3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1969FordP-1002.8LL6Engine Water Pump for systems with V-Belt Driven engines
1968FordBronco2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1968FordFairlane3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1968FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1968FordFalcon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1968FordMustang3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1968FordP-1002.8LL6Engine Water Pump for systems with V-Belt Driven engines
1968FordRanchero3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1968FordTorino3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1968MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1968MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1968MercuryMontego3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordBronco2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordClub Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordCountry Sedan2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordCountry Sedan3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordCountry Squire2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordCountry Squire3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordEconoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordFairlane3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordFalcon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordMustang3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordP-100Engine Water Pump for systems with V-Belt Driven engines
1967FordP-3502.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordRanch Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordRanch Wagon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967FordRanchero3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967MercuryCaliente3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967MercuryCapri3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967MercuryVillager2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967MercuryVillager3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1967MercuryVoyager2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1967MercuryVoyager3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordBronco2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordClub Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordCountry Sedan2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordCountry Sedan3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordCountry Squire2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordCountry Squire3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordEconoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordFairlane3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordFairlane2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordFalcon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordMustang3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordP-100Engine Water Pump for systems with V-Belt Driven engines
1966FordP-3502.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordRanch Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordRanch Wagon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966FordRanchero3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966MercuryCaliente3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966MercuryCapri3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966MercuryVillager2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966MercuryVillager3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1966MercuryVoyager2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1966MercuryVoyager3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordClub Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordCountry Sedan2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordCountry Sedan3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordCountry Squire2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordCountry Squire3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordEconoline2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordEconoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordFairlane3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordFairlane2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordFalcon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordFalcon Sedan Delivery2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordFalcon Sedan Delivery3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordMustang2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordMustang3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordP-100Engine Water Pump for systems with V-Belt Driven engines
1965FordP-3502.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordRanch Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordRanch Wagon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordRanchero2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordRanchero3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965FordStation BusEngine Water Pump for systems with V-Belt Driven engines
1965MercuryCaliente3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1965MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965MercuryVillager2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1965MercuryVillager3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordClub Wagon2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordClub Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordEconoline2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordEconoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordFairlane2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordFairlane3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordFalcon2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordFalcon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordFalcon Sedan Delivery2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordFalcon Sedan Delivery2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordFalcon Sedan Delivery3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordMustang2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordMustang3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordP-1002.4LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordP-1002.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordP-3502.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordRanch Wagon2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordRanch Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordRanch Wagon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordRanchero2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordRanchero2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordRanchero3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordSprint2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordSprint3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964FordStation BusEngine Water Pump for systems with V-Belt Driven engines
1964MercuryCaliente3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964MercuryCyclone3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1964MercuryVillager2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1964MercuryVillager3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963Ford3003.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordClub Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordClub Wagon2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordEconoline2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordEconoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordFairlane2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordFairlane3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordFalcon2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordFalcon Sedan Delivery2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordFalcon Sedan Delivery2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordGalaxie3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordGalaxie 5003.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordP-1002.4LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordP-1002.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordP-3502.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordRanch Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordRanch Wagon3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordRanchero2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordRanchero2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordSprint2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordSprint3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963FordStation BusEngine Water Pump for systems with V-Belt Driven engines
1963MercuryComet2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1963MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963MercuryComet3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963MercuryCountry Cruiser3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963MercuryMeteor2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963MercuryMeteor3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1963MercuryVillager2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1963MercuryVillager2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1963MercuryVillager3.3LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordClub Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordClub Wagon2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordEconoline2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordEconoline2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordFairlane2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordFalcon2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordFalcon Sedan Delivery2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordFalcon Sedan Delivery2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordP-1002.4LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordP-1002.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordP-3502.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordRanch Wagon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordRanchero2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordRanchero2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962FordStation BusEngine Water Pump for systems with V-Belt Driven engines
1962MercuryComet2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1962MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962MercuryMeteor2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1962MercuryVillager2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1962MercuryVillager2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1961FordEconolineEngine Water Pump for systems with V-Belt Driven engines
1961FordFalcon2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1961FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1961FordFalcon Sedan Delivery2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1961FordFalcon Sedan Delivery2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1961FordP-1002.4LL6Engine Water Pump for systems with V-Belt Driven engines
1961FordP-1002.8LL6Engine Water Pump for systems with V-Belt Driven engines
1961FordP-3502.8LL6Engine Water Pump for systems with V-Belt Driven engines
1961FordRanchero2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1961FordRanchero2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1961MercuryComet2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1961MercuryComet2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1961MercuryMeteor2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1960FordFalcon2.4LL6Engine Water Pump for systems with V-Belt Driven engines
1960FordFalcon2.8LL6Engine Water Pump for systems with V-Belt Driven engines
1960FordRancheroEngine Water Pump for systems with V-Belt Driven engines
1960MercuryCometEngine Water Pump for systems with V-Belt Driven engines