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GM 89027178
Caliper

2002-2009 GM

Customer Questions & Expert Answers (24)
GM 89027178 Caliper
GM 89027178 Caliper
GM 89027178 Caliper
GM 89027178 Caliper
GM 89027178 Caliper
GM 89027178 Caliper
  • Part Description
    Caliper Assembly, Rear Brake; Brake Caliper
  • Position
    Rear
  • Replaces
    88935778
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers

  • 89027178 Caliper is Ref No. 2 in the diagram below

    2008 GMC Envoy Caliper Diagram for 89027178
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 89027178

  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number89027178
    Part DescriptionCaliper Assembly, Rear Brake; Brake Caliper
    Other NamesCaliper, Wheel Brake Cylinder/Caliper
    Item Dimensions8.3 x 6.3 x 5.2 inches
    Item Weight2.30 Pounds
    PositionRear
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces88935778
    ManufacturerGeneral Motors
    SKU89027178
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65

  • Vehicle Fitment

    Year Make Model Trim Engine
    2004-2007 Buick RainierCXL, CXL Plus6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
    2003-2006 Chevrolet SSRBase8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2002-2009 Chevrolet TrailblazerBase, LS, LT, LTZ, North Face, SS6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2002-2006 Chevrolet Trailblazer EXTLS, LT, North Face6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
    2002-2009 GMC EnvoyDenali, SLE, SLT6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
    2002-2006 GMC Envoy XLDenali, SLE, SLT6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
    2004-2005 GMC Envoy XUVSLE, SLT6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
    2002-2004 Oldsmobile BravadaBase6 Cyl 4.2 L GAS

  • Customer Questions & Expert Answers

    Q:
    Is 89027178 compatible with my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 89027178 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the rear brake calipers on Chevrolet Trailblazer? Posted by Customer
    A:
    To replace the rear brake caliper, you need to lift the vehicle off the ground and take off the tire and wheel assembly first. Then remove the rear brake hose bolt from the rear brake caliper and plug the open end of the brake hose to prevent excessive brake fluid from being lost and getting contaminated. Discard away the metal (copper) gaskets, remove them from the brake hose bolt. After that, remove the rear brake caliper mounting bolts, and pull the rear brake from the mounting bracket. In case of recycling the brake caliper guide pin, make it clean with denatured alcohol and dried with non-lubricated and filtered air. Apply the high temperature silicone brake lubricant on the guide pin, allowing it to slide, but not an the brake pad hardware. Mount the rear brake caliper assembly on the mounting bracket bolt and tighten the brake caliper mounting bolts with a torque of 31 Nm (23 ft. lbs.). Install new metal (copper) gaskets on brake hose bolt, plug out the plug from the brake hose end, insert the brake hose bolt into the rear brake caliper and tighten it to 44 Nm (33 ft. lbs.). Finally, bleed the hydraulic brake system, and replace tire and wheel assembly, and lower the vehicle.
    Posted by ChevyPartsGiant Specialist
    Q:
    What should be done with the metal/copper gaskets for the 2005 Buick Rainier? Posted by Customer
    A:
    Discard the metal/copper gaskets and replace them with NEW copper gaskets.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What are the final steps after installing the rear brake caliper for the 2004 Buick Rainier? Posted by Customer
    A:
    Bleed the hydraulic brake system, reinstall the tire and wheel assembly, and lower the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What should be done after removing the tire and wheel assembly for the 2006 Buick Rainier? Posted by Customer
    A:
    Detach the rear brake hose bolt from the rear brake caliper and plug the opening of the brake hose to prevent excessive brake fluid loss and contamination.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What is the first step to replace the front brake caliper for the 2005 Chevrolet SSR? Posted by Customer
    A:
    Raise the vehicle and remove the tire and wheel assembly.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    How do you remove the rear brake caliper for the 2003 Chevrolet SSR? Posted by Customer
    A:
    Take out the rear brake caliper mounting bolts and remove the rear brake caliper from the mounting bracket.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What is the first step to replace the rear brake caliper for the 2004 Chevrolet SSR? Posted by Customer
    A:
    Raise the vehicle and remove the tire and wheel assembly.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What is the next step after applying lubricant to the guide pin for the 2006 Chevrolet SSR? Posted by Customer
    A:
    Install the front brake caliper onto the mounting bracket.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What is the next step after installing the copper gaskets for the 2006 Chevrolet SSR? Posted by Customer
    A:
    Remove the plug from the brake hose end and attach the brake hose bolt to the rear brake caliper, tightening it to 40 Nm (30 ft. lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    How do you remove the front brake caliper for the 2006 Buick Rainier? Posted by Customer
    A:
    Remove the front brake caliper guide pin bolts and take the front brake caliper off the mounting bracket.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    How can you prevent brake fluid loss and contamination for the 2009 Chevrolet Trailblazer? Posted by Customer
    A:
    Cap the brake hose fitting.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What should be used for the front brake caliper bolt for the 2008 Chevrolet Trailblazer? Posted by Customer
    A:
    Use only new copper gaskets.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What lubricant should be applied to the brake caliper guide pin for the 2002 Chevrolet Trailblazer? Posted by Customer
    A:
    Apply high temperature silicone brake lubricant, avoiding the brake pad hardware.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What should be done with the copper gaskets for the 2005 Chevrolet Trailblazer? Posted by Customer
    A:
    Discard the copper gaskets and remove them from the brake hose bolt.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What is the first step to replace the front brake caliper for the 2009 GMC Envoy? Posted by Customer
    A:
    Raise and support the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What is the torque specification for the bleeder valve for the 2003 Chevrolet Trailblazer? Posted by Customer
    A:
    Tighten the bleeder valve to 12 Nm (110 inch lbs.) after replacing the bleeder valve cap.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What is the torque specification for tightening the bleeder valve for the 2002 GMC Envoy? Posted by Customer
    A:
    Tighten the bleeder valve to 7 Nm (62 inch lbs.).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What is the next step after preparing the guide pin for the 2007 GMC Envoy? Posted by Customer
    A:
    Install the rear brake caliper assembly onto the mounting bracket.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What should be done after removing the tire and wheel assembly for the 2004 Chevrolet Trailblazer? Posted by Customer
    A:
    Remove the front brake hose bolt and install a plug in the front brake caliper hose to prevent excessive brake fluid loss and contamination.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What is the final step after completing the brake caliper replacement for the 2007 GMC Envoy? Posted by Customer
    A:
    Install the tire and wheel assembly and lower the vehicle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    How should the components be cleaned for the 2005 GMC Envoy? Posted by Customer
    A:
    Clean the bleeder valve, caliper bore, passages, piston, and lining contact area on the anchor bracket with denatured alcohol, then dry the parts and blow out the brake fluid passages using dry, filtered compressed air.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What components should be checked and removed from the mounting bracket for the 2003 GMC Envoy? Posted by Customer
    A:
    Check the brake hardware and remove the brake pad retaining clips, followed by the brake caliper mounting bracket retaining bolts and the mounting bracket itself.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    Q:
    What should be applied to the guide pin for the 2008 GMC Envoy? Posted by Customer
    A:
    Apply high temperature silicone brake lubricant to the guide pin, avoiding the brake pad hardware.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Brake Calipers
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM 89027178, Excellent Performance and Perfect Fitment

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