GM Genuine Parts Thermostat Bypass Hose
OE
Pack of 1

GM Genuine Parts Thermostat Bypass Hose

GM Part #55516401

ACDelco Part #55516401

MSRP$34.32*

GM Genuine Parts Thermostat Bypass Pipes are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

Pack of 1

About this product

GM Genuine Parts Thermostat Bypass Pipes are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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

  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
  • GM regularly updates production and service part designs to integrate new materials and technologies

End 1 TypeFlange
Outlet Inside Diameter0.78 in / 19.8 mm
Length3.47 in / 88.06 mm
Inlet Inside Diameter0.71 in / 18 mm
ClassificationOE
End 2 TypeBarbed
Gasket Or Seal IncludedYes
Mounting Hardware IncludedNo
ShapeMolded Assembly

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.

ModelBody StyleTrimYear(s)
Sierra 1500Crew Cab Pickup2020, 2021, 2022, 2023, 2024, 2025, 2026
Sierra 1500Extended Cab Pickup2020, 2021, 2022, 2023, 2024, 2025, 2026
Sierra 1500 LimitedCrew Cab Pickup2022
Sierra 1500 LimitedExtended Cab Pickup2022
Yukon2021, 2022, 2023, 2024, 2025, 2026