Replaces

2004-2006 Buick Rainier Water Pump (AC Delco) for V8 5.3L

Part Details

  • Brands: AC Delco

This part replaces:

  • HOLLANDER 324-00851
  • OE # 19256261
  • AC DELCO 251-743

  • New

AC DELCO WATER PUMP: 251-743

Specifications:

  • Brand New AC Delco Water Pump
  • Direct replacement
  • Built to strict quality control standards
  • Replaces dealer part number: 19256261
  • No core charge

Note: This pump will fit 99-03 4.8L, 5.3L & 6.0L engines that have the revised (48mm / 1.88") thermostat housing.  If your vehicle was equipped with the 51mm / 2.02" thermostat, you will need replacement housing 12600172.

Your water pump is a major component of your engine cooling system. If the water pump fails, the engine will overheat causing it to shut down. Water pumps have an indicator that tells you when they are going bad. There is a small hole in the water pump right under the shaft in the middle that the pulley bolts to. As the water pump's bearings wear out coolant seeps by them and leaks through this hole. If you notice a few drops of coolant under the front of your engine this is an indicator your pump is failing. If a water pump fails it will cause engine overheating, and possibly further engine damage. If you have noticed little drops of coolant under the front of your vehicle then inspect the bottom of the water pump to see if it is dripping out of the indicator hole. If your water pump is the problem, then this part is for you.

Replace your broken or leaking water pump now with this great fitting replacement part.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.


Vehicle Fit

  • 2004-2006 Buick Rainier Water Pump (AC Delco) for V8 5.3L
  • 2004-2006 Cadillac Escalade Water Pump (AC Delco)
  • 2004-2006 Cadillac Escalade ESV Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 Cadillac Escalade EXT Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 Chevy Avalanche 1500 Water Pump (AC Delco) for V8 5.3L
  • 2004-2006 Chevy SSR Water Pump (AC Delco)
  • 2004-2006 Chevy Silverado 1500 Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 Chevy Silverado 1500 Water Pump (AC Delco) for V8 5.3L
  • 2004-2006 Chevy Silverado 1500 Water Pump (AC Delco) for V8 4.8L
  • 2005-2006 Chevy Silverado 1500 HD Water Pump (AC Delco)
  • 2004 Chevy Silverado 2500 Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 Chevy Silverado 2500 HD Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 Chevy Silverado 3500 Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 Chevy Silverado Hybrid 1500 Water Pump (AC Delco) for V8 5.3L
  • 2004-2006 Chevy Suburban 1500 Water Pump (AC Delco)
  • 2004-2006 Chevy Suburban 2500 Water Pump (AC Delco)
  • 2004-2006 Chevy Suburban 2500 Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 Chevy Tahoe Water Pump (AC Delco)
  • 2003-2005 Chevy Trailblazer EXT Water Pump (AC Delco) for V8 5.3L
  • 2004-2006 GMC Envoy Water Pump for V8 5.3L Denali (AC Delco)
  • 2004-2006 GMC Envoy XL Water Pump (AC Delco) for V8 5.3L
  • 2004-2005 GMC Envoy XUV Water Pump (AC Delco) for V8 5.3L
  • 2004-2006 GMC Savana 1500 Van Water Pump (AC Delco) for V8 5.3L
  • 2003-2005 GMC Savana 2500 Van Water Pump (AC Delco) for V8 4.8L
  • 2004-2006 GMC Savana 2500 Van Water Pump (AC Delco) for V8 5.3L
  • 2004-2006 GMC Savana 2500 Van Water Pump (AC Delco) for V8 6.0L
  • 2003-2005 GMC Savana 3500 Van Water Pump (AC Delco) for V8 4.8L
  • 2004-2006 GMC Savana 3500 Van Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 GMC Sierra 1500 Water Pump (AC Delco) for V8 4.8L
  • 2004-2006 GMC Sierra 1500 Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 GMC Sierra 1500 Water Pump (AC Delco) for V8 5.3L
  • 2005-2006 GMC Sierra 1500 HD Water Pump (AC Delco)
  • 2004 GMC Sierra 2500 Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 GMC Sierra 2500 HD Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 GMC Sierra 3500 Water Pump (AC Delco) for V8 6.0L
  • 2004-2006 GMC Sierra Denali 1500 Water Pump (AC Delco) for V8 6.0L
  • 2005-2006 GMC Sierra Hybrid 1500 Water Pump (AC Delco)
  • 2004-2006 GMC Yukon Water Pump (AC Delco)
  • 2004-2006 GMC Yukon XL 1500 Water Pump (AC Delco)
  • 2004-2006 GMC Yukon XL Denali Water Pump (AC Delco)
  • 2004-2006 Hummer H2 Water Pump (AC Delco)
  • 2004-2006 Isuzu Ascender Water Pump (AC Delco) for V8 5.3L
  • 2005-2006 Saab 9-7X Water Pump (AC Delco) for V8 5.3L
$156.95
Save 38%
List: $254.50 Save: $97.55
Part #: ACEWP00001

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AC DELCO
Brand #: 251-743

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"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
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