ACDelco GM Original Equipment 15 P.S.I. Radiator Cap
OE
Pack of 1

ACDelco GM Original Equipment 15 P.S.I. Radiator Cap

GM Part #15042975

ACDelco Part #RC85

MSRP$20.78*

ACDelco GM Original Equipment Radiator Caps help seal and maintain pressure in your vehicle's radiator, and are GM-recommended replacements for your vehicle's original components.

  • Helps seal and maintain pressure in your vehicle's cooling system for vehicle safety
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability, and durability of GM OE

Pack of 1

About this product

ACDelco GM Original Equipment Radiator Caps help seal and maintain pressure in your vehicle's radiator, and are GM-recommended replacements for your vehicle's original components. These radiator caps have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

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  • Helps seal and maintain pressure in your vehicle's cooling system for vehicle safety
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function

Lever TypeNo
Height4.3in
Filler Neck Inside Diameter1.19 in / 30.2 mm
Filler Neck Height1.24 in / 31.4 mm
Cap Depth1.48 in / 37.7 mm
Filler Neck Outside Diameter2.31 in / 58.66 mm
Maximum Pressure15
ClassificationOE
ColorBlack
ShapeRound
Width4.4in
Cap FinishPlastic
MaterialPlastic Covered Stainless Steel
Quick Pressure ReleaseNo
Coolant Recovery SystemYes

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.

Good Maintenance Practices:

  • Ensure cap seal are not worn or broken
  • Lock cap into correct position to help prevent leakage and provide proper ventilation

Signs of wear for radiator caps include but are not limited to:

  • Coolant leaks
  • Steam venting from radiator or surge tank cap
  • Engine overheating

ModelBody StyleTrimYear(s)
Colorado2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Express 15002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
Express 25002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Express 35002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Express 45002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025