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GM 12637204
Serpentine Belt

1999-2020 GM

Customer Questions & Expert Answers (27)
GM 12637204 Serpentine Belt
GM 12637204 Serpentine Belt
GM 12637204 Serpentine Belt
GM 12637204 Serpentine Belt
GM 12637204 Serpentine Belt
GM 12637204 Serpentine Belt
GM 12637204 Serpentine Belt
GM 12637204 Serpentine Belt
  • Part Description
    Belt-Fan & Water Pump & Generator & Power Steering Pump; Serpentine Drive Kit; Accessory Drive Belt; V-Belt
  • Replaces
    12557501, 12569348, 12576451
  • Manufacturer
    General Motors
Make sure this part fits
$50.29 MSRP: $89.82
You Save: $39.53 (45%)
Ships in 1-3 Business Days
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  • 2002 Cadillac Escalade EXT Serpentine Belt Diagram for 12637204
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 12637204

  • Vehicle Fitment

    Year Make Model Trim Engine
    2002-2006 Cadillac EscaladeBase8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2003-2006 Cadillac Escalade ESVBase8 Cyl 6.0 L GAS
    2002-2006 Cadillac Escalade EXTBase8 Cyl 6.0 L GAS
    2002-2006 Chevrolet Avalanche 1500Base, LS, LT, North Face, On Road Edition, WBH, Z66, Z718 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    2003-2006 Chevrolet Avalanche 2500Base, LS, LT8 Cyl 8.1 L GAS
    2003-2014 Chevrolet Express 1500Base, LS, LT8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    2003-2020 Chevrolet Express 2500Base, LS, LT8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    2003-2020 Chevrolet Express 3500Base, LS, LT8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    1999-2007 Chevrolet Silverado 1500Base, Hybrid, LS, LT, LTZ, SS, WT, Z71 Off-Road8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2007 Chevrolet Silverado 1500 ClassicHybrid, LS, LT, SS, WT8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    View More
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Is this 12637204 designed for my car? Posted by ChevyPartsDeal Specialist
    A:
    Please Select Your Vehicle model to see if part number 12637204 is suitable before ordering.
    Posted by ChevyPartsDeal Specialist
    Q:
    How do you install the new A/C belt for the 2002 Cadillac Escalade? Posted by Customer
    A:
    Place the A/C belt around the crankshaft balancer, then use a ratchet in the A/C drive belt tensioner adapter opening to rotate the tensioner clockwise again.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    How do you relieve tension on the drive belt for the 2006 Cadillac Escalade EXT? Posted by Customer
    A:
    Use a breaker bar with a hex-head socket on the drive belt tensioner bolt and rotate the tensioner clockwise.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What is the first step to replace the A/C drive belt for the 2004 Cadillac Escalade ESV? Posted by Customer
    A:
    First, remove the accessory drive belt and raise the vehicle securely.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should you do before reinstalling the engine shield for the 2003 Chevrolet Avalanche 1500? Posted by Customer
    A:
    Follow the Fastener Notice for guidance.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What is the next step after routing the drive belt for the 2006 Chevrolet Avalanche 2500? Posted by Customer
    A:
    Reinstall the breaker bar with the hex-head socket onto the belt tensioner bolt and rotate it clockwise to relieve tension.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should you do after relieving tension on the A/C belt for the 2006 Chevrolet Express 1500? Posted by Customer
    A:
    Remove the A/C belt from the pulleys.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What is the next step after placing the A/C belt around the crankshaft balancer for the 2003 Chevrolet Express 3500? Posted by Customer
    A:
    Install the A/C belt over the idler pulley and around the A/C compressor pulley.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What are the final steps after ensuring the drive belt is properly installed for the 2007 Chevrolet Express 2500? Posted by Customer
    A:
    Position the coolant recovery reservoir and install the retaining bolt, tightening it to 11 N.m (97 lb in), followed by reinstalling the air cleaner assembly.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should be done after removing the breaker bar for the 2007 Chevrolet Silverado 1500 Classic? Posted by Customer
    A:
    Clean and inspect the belt surfaces of all the pulleys.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What is the final step in the process for the 2004 Chevrolet Silverado 3500? Posted by Customer
    A:
    Reinstall the air cleaner outlet duct, connect the radiator inlet hose clip to the outlet duct, and tighten the air cleaner outlet duct clamp screws at the throttle body and MAF/IAT sensor to 7 Nm (62 inch lbs.).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should be checked before installing the accessory drive belt for the 2007 Chevrolet Silverado 1500? Posted by Customer
    A:
    Inspect the A/C belt for proper installation and alignment.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What is the next step after relieving tension on the belt for the 2004 Chevrolet Silverado 2500? Posted by Customer
    A:
    Remove the belt from the pulleys and tensioner, then slowly release the tension on the drive belt tensioner and remove the breaker bar and socket.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should you do after releasing the tension for the 2007 Chevrolet Silverado 3500 Classic? Posted by Customer
    A:
    Remove the breaker bar and socket, then inspect the drive belt for proper installation and alignment.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should you do after removing the A/C belt for the 2001 Chevrolet Suburban 1500? Posted by Customer
    A:
    Slowly release the tension on the A/C belt tensioner, remove the ratchet, and clean and inspect the belt surfaces of all pulleys.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What is the next step after positioning the A/C belt for the 2002 Chevrolet Suburban 2500? Posted by Customer
    A:
    Position the A/C belt over the idler pulley and around the A/C compressor pulley.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    How do you relieve tension on the A/C belt for the 2002 Chevrolet Tahoe? Posted by Customer
    A:
    Use a ratchet in the A/C belt tensioner adapter opening to rotate the tensioner clockwise.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should be done before installing the new drive belt for the 2003 GMC Savana 2500? Posted by Customer
    A:
    Clean and inspect the belt surfaces of all the pulleys.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    How do you relieve tension on the drive belt for the 2007 GMC Sierra 3500 Classic? Posted by Customer
    A:
    Use a breaker bar with a hex-head socket to rotate the drive belt tensioner clockwise.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What happens as the balancer is rotated clockwise for the 2009 GMC Savana 1500? Posted by Customer
    A:
    The belt installation tool will release from the belt.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should be done after routing the belt for the 2007 GMC Sierra 1500 Classic? Posted by Customer
    A:
    Install the 3/8 inch drive breaker bar to the drive belt tensioner arm and rotate it counterclockwise to relieve tension.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should you do after placing the drive belt under the idler pulley for the 2005 GMC Sierra 1500? Posted by Customer
    A:
    Slowly release the tension again.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What is the next step after placing the A/C belt around the crankshaft balancer for the 2005 GMC Savana 3500? Posted by Customer
    A:
    Install the A/C belt over the idler pulley and around the A/C compressor pulley.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What is the final step in the process for the 2005 GMC Sierra 3500? Posted by Customer
    A:
    Connect the radiator inlet hose clip to the outlet duct and tighten the air cleaner outlet duct clamps at the throttle body and the MAF/IAT sensor to 4 Nm (35 inch lbs.).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    How do you install the air cleaner outlet duct for the 2004 GMC Yukon? Posted by Customer
    A:
    Align the arrow at the throttle body end of the duct with the throttle body attaching stud and install the duct.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    How do you relieve tension on the drive belt for the 2001 GMC Yukon XL 1500? Posted by Customer
    A:
    Use a breaker bar with a hex-head socket on the drive belt tensioner bolt and rotate it clockwise.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    Q:
    What should be done before installing the new drive belt for the 2004 GMC Yukon XL 2500? Posted by Customer
    A:
    Clean and inspect the belt surfaces of all the pulleys.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Drive Belt
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Serpentine Belt 12637204 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 12637204 Serpentine Belt is available in the market under the name GM Drive Belt. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 12637204 Serpentine Belt fits certain Chevrolet Tahoe, Silverado 1500, Silverado 2500 HD models, as well as GMC Sierra 1500, Yukon, Sierra 2500 HD. Additionally, it is compatible with Cadillac Escalade, Escalade ESV, Escalade EXT and Hummer H2 models.
The original GM component designated by Manufacturer Part Number 12637204 maintains top performance when functioning as the Belt-Fan & Water Pump & Generator & Power Steering Pump; Serpentine Drive Kit; Accessory Drive Belt; V-Belt unit. The component 12637204 is constructed from durable material and its dimensions span 15.8 x 11.4 x 2.0 inches while weighing 0.90 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Belt; Belt, Drive. The part 12637204 has available replacement options 12557501, 12569348, 12576451. 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.
If you want to save money in the long run on maintenance and repairs, you should choose OEM products because they're of the top level of durability. Are you on the quest of finding GM parts? Our site is worth a visit. We stock an endless selection of high-quality GM components including things like ignition coils all the way through to fan shrouds and all at prices that can not be matched. You have nothing to worry about because all our OEM parts are covered with a manufacturer warranty, which guarantees superior quality and value.