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GM 88956887
Heater Core

1997-2005 GM

Customer Questions & Expert Answers (11)
GM 88956887 Heater Core
GM 88956887 Heater Core
GM 88956887 Heater Core
  • Part Description
    Core, Heater Core; HVAC Heater Core
  • Replaces
    52465600, 52481498
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits

  • 88956887 Heater Core is Ref No. 10 in the diagram below

    1998 Pontiac Grand Prix Heater Core Diagram for 88956887
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 88956887

  • Vehicle Fitment

    Year Make Model Trim Engine
    1997-2005 Buick CenturyCustom, Limited, Special Edition6 Cyl 3.1 L GAS
    1997-2004 Buick Regal25th Anniversary Edition, GS, GSE, LS, LSE6 Cyl 3.8 L GAS
    2000-2003 Chevrolet ImpalaBase, LS, LS Sport6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
    2000-2003 Chevrolet Monte CarloLS, LS Competition, LS Sport, SS, SS 35th Anniversary Edition, SS Dale Earnhardt Signature Edition, SS High Sport, SS Pace Car6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
    1998-2002 Oldsmobile IntrigueBase, GL, GLS, GX6 Cyl 3.5 L GAS, 6 Cyl 3.8 L GAS
    1997-2003 Pontiac Grand PrixGT, GTP, SE6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Is 88956887 compatible with my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 88956887 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the Heater Core on Buick Century? Posted by Customer
    A:
    Start the Heater Core replacement by removing the air cleaner and duct assembly (only for 3.1L) as well as the fuel injector sight shield (only for 3.8L). The first step is to empty coolant from the system and break both Heater Core hose connections. The procedure requires removal of both lower floor console as well as lh and rh instrument panel insulators when they are present. The outlet cover requires positioning downward in the rear direction so it can disconnect from the rear area floor duct assembly before you remove both screws and the outlet cover. Secure the Heater Core at its opening by removing screws from the cover and discarding three seals (1,2,3) from both cover and core components. First detach the Heater Core line clamp screw together with its retaining clamp before loosening the Heater Core pipe retainer clamp screw. The hvac lower case will yield the Heater Core while operators must discard the lower seal along with the center seal, upper seal and side seals. Start Heater Core installation by placing the side seals and upper and center and lower seals into the hvac case and inserting the Heater Core. Apply 1.5 n.m (13 lb in) torque to the Heater Core line clamp screw followed by installing the mounting clip with a screw which needs 1.5 n.m (13 lb in) torque. Insert the Heater Core outer seal onto the Heater Core unit before installing new seals (1,2,3) to the Heater Core cover. Place the Heater Core cover in position first before securing its screws at 1.5 n.m (13 lb in). Next, assemble the Heater Core outlet cover with screws while torquing to 1.5 n.m (13 lb in). Reinstallation of both Heater Core outlet cover screws to 1.5 n.m (13 lb in) is required followed by reinstalling the lower floor console and lh and rh instrument panel insulators and reconnecting both heater hoses at the Heater Core then filling coolant before reinstalling the air cleaner and duct assembly (3.1L only) and fuel injector sight shield (3.8L only).
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the Heater Core on Buick Regal? Posted by Customer
    A:
    Hose clamp pliers (J 38185) represent the required tool for Heater Core replacement. Start the repair process by taking off either the air cleaner assembly for 3.1l engines and the fuel injector sight shield for 3.8l engines and then disconnect the cross vehicle brace. The Heater Core requires positioning of the heater hose inlet and outlet clamps using hose clamp pliers (J 38185) before disconnecting the hoses while draining the coolant. To disconnect the Heater Core from its assembly at the rear area floor duct your first step should be positioning the Heater Core outlet cover downward and rearward before removing the lower floor console along with right and left instrument panel insulators. First remove all screws at both the Heater Core outlet cover then unscrew the screws from the Heater Core cover. Simply discard the seals (1,2) from the Heater Core cover followed by removing the caulk before discarding the outer seal from the Heater Core. Slide the screw out from the Heater Core line clamp and Heater Core retaining clamp as well as the Heater Core pipe retainer clamp before pulling out the Heater Core from the hvac lower case. The hvac lower case requires removal of its lower and center and upper and side seals together with the surrounding parts. Begin Heater Core installation by placing the hvac case with side seals, upper seal, center seal, lower seal and then installing the Heater Core. Fasten both the Heater Core line clamp and Heater Core mounting clip with screw while tightening them to 1.5 n.m (13 lb in). Install the outer seal to the Heater Core followed by new seals (1,2) to the Heater Core cover and apply caulk before securing it with screws at 1.5 n.m (13 lb in). Reinstall the Heater Core outlet cover with screws then tighten them to 1.5 n.m (13 lb in). After that complete installation of the lower floor console, right and left instrument panel insulators. To complete the Heater Core installation the technician must connect the inlet and outlet heater hoses using the hose clamp pliers (J 38185) and reposition the clamps before adding coolant to the system followed by reinstalling the cross vehicle brace with the air cleaner assembly for 3.1l engines or the fuel injector sight shield for 3.8l engines.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to Address Issues with the Heater Core on Buick Regal? Posted by Customer
    A:
    The first step to replace a Heater Core involves taking off the fuel injector sight shield along with draining coolant from the system. You need to detach both heater hoses from the Heater Core while also removing the lower floor console when present and then walking down the lh and rh instrument panel insulators. The outlet cover must be moved downward and to the rear from the duct assembly before you can remove its screws and the outlet assembly. You will now detach the Heater Core cover by unfastening its screws while removing the cover along with seats (1, 2, 3) and Heater Core outer seal. First remove the Heater Core line clamp screw followed by its retaining clamp before moving on to the Heater Core pipe retainer clamp screw . Remove the Heater Core from its position inside the hvac lower case after discarding all seals consisting of the lower seal and center seal and upper seal and side seals. Insert the new side seals and upper seal along with the center seal and lower seal onto the hvac case before inserting the Heater Core. The installation requires a screw to fasten the Heater Core line clamp at 1.5 n.m (13 lb in) while the Heater Core mounting clip requires another screw with a proper 1.5 n.m (13 lb in) torque setting. Position the Heater Core outer seal to the Heater Core and afterward install new seals (1, 2, 3) onto the Heater Core cover. Secure the cover with its screws to 1.5 n.m (13 lb in) torque specification. Place both Heater Core outlet cover screws and tighten them to 1.5 n.m (13 lb in). Completing the service requires lower floor console installation if present together with lh and rh instrument panel insulators reinstallation followed by connecting the heater hoses to the Heater Core before refilling the coolant system and installing the fuel injector sight shield.
    Posted by ChevyPartsGiant Specialist
    Q:
    What is the first step in the installation process for the 2003 Buick Century? Posted by Customer
    A:
    Place the side seals, upper seal, center seal, and lower seal onto the HVAC case.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Heater Core
    Q:
    What is the next step after removing the heater core cover for the 2001 Buick Century? Posted by Customer
    A:
    Remove the heater core line clamp screw and the retaining clamp, followed by the heater core pipe retainer clamp screw.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Heater Core
    Q:
    What should be done after securing the heater core for the 2005 Buick Century? Posted by Customer
    A:
    Install the outer seal to the heater core, new seals to the heater core cover, and the caulk onto the heater core cover before installing the cover and its screws, tightening them to 1.5 N.m (13 lb in).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Heater Core
    Q:
    What is the final step in the process for the 2001 Chevrolet Impala? Posted by Customer
    A:
    Reconnect the heater hoses at the heater core, refill the coolant, and reinstall the air cleaner assembly.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Heater Core
    Q:
    What components need to be reinstalled after the heater core replacement for the 2000 Chevrolet Monte Carlo? Posted by Customer
    A:
    Reinstall the lower floor console if equipped, the LH and RH instrument panel insulators, and connect the heater hoses at the heater core.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Heater Core
    Q:
    What should be done if it is equipped with a 3.8L engine for the 2003 Chevrolet Monte Carlo? Posted by Customer
    A:
    Remove the fuel injector sight shield and then drain the coolant.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Heater Core
    Q:
    What is the torque specification for the heater core line clamp screw for the 2002 Chevrolet Monte Carlo? Posted by Customer
    A:
    Tighten it to 1.5 N.m (13 lb in).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Heater Core
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Heater Core 88956887 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 88956887 Heater Core is available in the market under the name GM Heater Core. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 88956887 Heater Core fits certain Chevrolet Impala, Monte Carlo models, as well as Buick Regal, Century. Additionally, it is compatible with Pontiac Grand Prix and Oldsmobile Intrigue models.
The original GM component designated by manufacturer part number 88956887 maintains top performance when functioning as the Core, Heater Core; HVAC Heater Core unit. The component 88956887 is constructed from durable material and its dimensions span 8.4 x 20.6 x 16.6 inches while weighing 4.40 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. The part 88956887 has available replacement options 52465600, 52481498. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
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