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Make sure this part fits

GM 12479051
Pitman Arm

1999-2010 GM

Customer Questions & Expert Answers (18)
GM 12479051 Pitman Arm
GM 12479051 Pitman Arm
GM 12479051 Pitman Arm
  • Part Description
    Arm Kit, Pitman; Steering Pitman Arm; Idler Arm
  • Replaced By
    85819774
  • Manufacturer
    General Motors
Make sure this part fits
$65.33 MSRP: $112.19
You Save: $46.86 (42%)
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  • 12479051 Pitman Arm is Ref No. 4 in the diagram below

    2002 GMC Sierra 3500 Pitman Arm Diagram for 12479051
    The diagram listed above is for your reference. View diagram for your vehicle

    Related Parts for 12479051

  • Vehicle Fitment

    Year Make Model Trim Engine
    2002-2006 Chevrolet Avalanche 1500Base, LS, LT, On Road Edition, WBH, Z668 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
    2002-2006 Chevrolet Avalanche 2500Base, LS, LT8 Cyl 8.1 L GAS
    2003-2008 Chevrolet Express 2500Base, LS, LT6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    2003-2008 Chevrolet Express 3500Base, LS, LT8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
    2001-2008 Chevrolet Silverado 1500Base, Hybrid, LS, LT, LTZ, SS, WT, Z71 Off-Road6 Cyl 4.3 L GAS, 8 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 ClassicLS, LT, SS, WT6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
    2005-2006, 2001-2003 Chevrolet Silverado 1500 HDBase, LS, LT8 Cyl 6.0 L GAS
    2007 Chevrolet Silverado 1500 HD ClassicLT8 Cyl 6.0 L GAS
    1999-2004 Chevrolet Silverado 2500Base, LS, LT, WT8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    2001-2008 Chevrolet Silverado 2500 HDBase, LS, LT, LTZ, WT8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
    View More
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Is this 12479051 designed for my car? Posted by ChevyPartsDeal Specialist
    A:
    Please Select Your Vehicle model to see if part number 12479051 is suitable before ordering.
    Posted by ChevyPartsDeal Specialist
    Q:
    What is the next step after attaching the relay rod for the 2005 Chevrolet Avalanche 1500? Posted by Customer
    A:
    Use the Steering Linkage Installer (12 mm) (J 29193) to seat the tapers, tightening it or the Steering Linkage Installer (14 mm) (J 29194) to 54 Nm (40 ft. lbs.).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What is the next step after attaching the relay rod for the 2006 Chevrolet Avalanche 2500? Posted by Customer
    A:
    Use the Steering Linkage Installer (12 mm) (J 29193) to seat the tapers, tightening it or the Steering Linkage Installer (14 mm) (J 29194) to 54 Nm (40 ft. lbs.).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What is the first step to replace the idler arm for the 2007 Chevrolet Express 2500? Posted by Customer
    A:
    Raise and support the vehicle.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    How do you disconnect the idler arm from the relay rod for the 2003 Chevrolet Express 3500? Posted by Customer
    A:
    Use the Ball Joint Remover (J43631).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What should be done after installing the new idler arm for the 2007 Chevrolet Silverado 1500 Classic? Posted by Customer
    A:
    Attach the relay rod to the idler arm ball stud, ensuring the seal is in place.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What is the first step in replacing the idler arm for the 2007 Chevrolet Silverado 3500 Classic? Posted by Customer
    A:
    Raise the vehicle and remove the engine protection shield if equipped.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What should be done after securing the new idler arm for the 2006 Chevrolet Silverado 1500? Posted by Customer
    A:
    Install the relay rod onto the idler arm ball stud, ensuring the seal is in place.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What should be done after removing the engine protection shield for the 2002 Chevrolet Suburban 2500? Posted by Customer
    A:
    Remove the idler arm ball stud nut, ensuring not to reuse it.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What should be done after securing the idler arm for the 2004 Chevrolet Silverado 2500? Posted by Customer
    A:
    Reinstall the engine protection shield if equipped, lower the vehicle, and check the wheel alignment.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What is the final step in securing the idler arm for the 2004 Chevrolet Silverado 3500? Posted by Customer
    A:
    Install the new idler arm ball stud prevailing torque nut to the idler arm ball stud, tightening it to 62 Nm (46 ft. lbs.).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What is the installation process for the pitman arm for the 2004 GMC Savana 3500? Posted by Customer
    A:
    Attach the pitman arm to the power steering gear, ensuring the marks made during removal are aligned on both the pitman arm and the pitman arm shaft.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Pitman Arm
    Q:
    What is the first step to replace the Pitman Arm for the 2007 GMC Sierra 1500 Classic? Posted by Customer
    A:
    First, remove the steering gear and secure it in a vise.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Pitman Arm
    Q:
    How do you detach the idler arm from the relay rod for the 2006 GMC Sierra 3500? Posted by Customer
    A:
    Use the Universal Steering Linkage Puller (J 24319-B) to detach the idler arm from the relay rod.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What should be done at the end of the process for the 2007 GMC Sierra 1500? Posted by Customer
    A:
    Reinstall the engine shield if equipped and adjust the front toe.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What is the final step after tightening the nut for the 2007 GMC Sierra 3500 Classic? Posted by Customer
    A:
    Remove the steering gear from the vise, reinstall it, and adjust the front toe.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Pitman Arm
    Q:
    How do you connect the idler arm to the relay rod during installation for the 2006 GMC Savana 2500? Posted by Customer
    A:
    Connect the idler arm to the relay rod and install a new idler arm to relay rod retaining nut.
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    Q:
    What should be done with the idler arm ball stud nut for the 2004 GMC Yukon XL 2500? Posted by Customer
    A:
    Install a new idler arm ball stud prevailing torque nut on the idler arm ball stud, tightening it to 62 Nm (46 ft. lbs.).
    Posted by ChevyPartsDeal Specialist
    See vehicle specific detailed answers for this Idler Arm
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Pitman Arm 12479051 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 12479051 Pitman Arm is available in the market under the name GM Idler Arm, Pitman Arm. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 12479051 Pitman Arm fits certain Chevrolet Silverado 1500, Silverado 2500 HD, Express 2500 models, as well as GMC Sierra 1500, Sierra 2500 HD, Savana 2500. Additionally, it is compatible with Hummer H2 models.
The original GM component designated by Manufacturer Part Number 12479051 maintains top performance when functioning as the Arm Kit, Pitman; Steering Pitman Arm; Idler Arm unit. The component 12479051 is constructed from durable material and its dimensions span 4.3 x 4.3 x 13.4 inches while weighing 4.20 Pounds. The component is ready in New condition to ensure full compatibility with your vehicle system. The part 12479051 has available replacement options listed under 85819774. 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.