GM Genuine Parts 12575032 | HVAC Heater Pipe O-Ring

Part Number
HVAC Heater Pipe O-Ring ACDelco GM Original Equipment 12575032

Fits the following vehicles: 2004-2012 Chevrolet Colorado, 2004-2012 GMC Canyon, 2006-2010 Hummer H3, 2006 Isuzu i-280, 2006 Isuzu i-350, 2007-2008 Isuzu i-290, 2007-2008 Isuzu i-370, 2009-2010 Hummer H3T
Special Price $7.71 Regular Price $11.70
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Estimated Ship Date: 1 Business Day or Less


GM Genuine Parts HVAC Heater Pipe O-Rings are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These O-Rings are elastomer that form a sealed connection between the heater pipe and engine. 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).


  • Forms sealed connection between heater pipe and engine
  • 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


Height (in):0.2
Inside Diameter:0.5
Inside Diameter:13.9
Length (in):1.3
Programming Required:No
Rim Shape:Round
Weight (lb):0.01
Width (in):1.3


  • 2004-2012 Chevrolet Colorado        Position: Inlet
  • 2004-2012 GMC Canyon        Position: Inlet
  • 2006-2010 Hummer H3        Position: Inlet
  • 2006-2008 Hummer H3        Position: Outlet
  • 2006 Isuzu i-280        Position: Inlet
  • 2006 Isuzu i-350        Position: Inlet
  • 2007-2008 Isuzu i-290        Position: Inlet
  • 2007-2008 Isuzu i-370        Position: Inlet
  • 2009-2010 Hummer H3T        Position: Inlet

Customer Questions
What is better Mellling vs. GM oil pump?
Both Melling and GM oil pumps are reputable brands and offer quality products. The better choice between the two depends on factors such as the specific application, compatibility, and personal preference.
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