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GM Genuine Parts Water Outlet
OE

GM Genuine Parts Water Outlet

GM Part #55510504

ACDelco Part #55510504

MSRP$42.05*

GM Genuine Parts Engine Coolant Water Outlets are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

  • Helps aid proper cooling system function.
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors

About this product

GM Genuine Parts Engine Coolant Water Outlets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These outlets help direct coolant flow so that it properly circulates through the engine. In doing so, the coolant removes heat from the engine to help maintain optimal operating temperatures. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • Helps aid proper cooling system function.
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies

MaterialAluminum
Mounting Hardware IncludedNo
Universal Or Specific FitSpecific
Mounting Hole Quantity1
Mounting Hole Diameter0.28 in / 7 mm
Height3.29 in / 83.68 mm
ClassificationOE
Gasket Or Seal IncludedNo
ColorGray
Bolt Hole Quantity1
Bleeder Screw IncludedNo
Grade TypeStandard Replacement
Outlet Outside Diameter0.86 in / 21.86 mm
Inlet Port Outside Diameter0.86 in / 21.86 mm

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Before purchasing and installing an engine coolant water outlet, make sure it is the correct fit for your vehicle.

  • Do not overtighten outlet bolts when installing.
  • Keep inlet hose clamp tight to prevent coolant leaks.
  • Watch for signs of leaks at outlet connections.
  • Regularly inspect engine coolant water outlet for signs of damage or wear, and replace them if signs of damage are found.

Signs of wear for engine coolant water outlets include but are not limited to:

  • Coolant leaking from water neck or gasket
  • Engine overheating
  • Vehicle's heater blows cold air
  • Radiator or coolant overflow low

ModelBody StyleTrimYear(s)
Sierra 1500Crew Cab Pickup2020, 2021, 2022
Sierra 1500Extended Cab Pickup2020, 2021, 2022
Sierra 1500 LimitedCrew Cab Pickup2022
Sierra 1500 LimitedExtended Cab Pickup2022
Yukon2021, 2022, 2023, 2024

Frequently Asked Questions

A: Yes. Always consult the Vehicle Owner’s manual or an expert technician before making any repairs or adjustments.

A: They should be torqued to manufacture's specs. Overtightening could damage the gasket or outlet.

A: If stuck open usually no heat through interior heating, if stuck closed engine temperature runs hot and overheats.