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GM 12581717
Rear Main Seal

2002-2009 GM

Customer Questions & Expert Answers (19)
GM 12581717 Rear Main Seal
GM 12581717 Rear Main Seal
  • Part Description
    Seal, Engine Rear Main Bearing
  • Position
    Rear
  • Replaces
    24577096
  • Manufacturer
    General Motors
Make sure this part fits
$17.56 MSRP: $35.25
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  • Vehicle Fitment

    Year Make Model Trim Engine
    2004-2007 Buick RainierCXL, CXL Plus6 Cyl 4.2 L GAS
    2002-2009 Chevrolet TrailblazerBase, LS, LT, LTZ, North Face6 Cyl 4.2 L GAS
    2002-2006 Chevrolet Trailblazer EXTLS, LT, North Face6 Cyl 4.2 L GAS
    2002-2009 GMC EnvoySLE, SLT6 Cyl 4.2 L GAS
    2002-2006 GMC Envoy XLSLE, SLT6 Cyl 4.2 L GAS
    2004-2005 GMC Envoy XUVSLE, SLT6 Cyl 4.2 L GAS
    2002-2004 Oldsmobile BravadaBase6 Cyl 4.2 L GAS
    Warning: California's Proposition 65
  • Customer Questions & Expert Answers

    Q:
    Is this 12581717 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 12581717 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the rear crankshaft seal and housing on Chevrolet Trailblazer? Posted by Customer
    A:
    Therefore, in trying to replace the Crankshaft rear oil seal and housing, pull out the transmission before the Flywheel bolts ensuring that you remove the Flywheel. Then, switch to removing the Crankshaft rear oil seal housing bolts and install two bolts in the jackscrew holes to allow the cover to be separated from the block. Then take off the Crankshaft and rear oil seal housing, and flaten the oil seal on the Crankshaft snout. For installation use rear seal installer (J 44227) to install the Crankshaft rear oil seal and then remove the installer. Use a 3 mm (0.12 inch) bead of the gm p/n 12378521 on the rear oil seal housing and insert the cover alignment pins (J 44219) into the block. Push the Crankshaft rear oil seal housing over the alignment pins and Crankshaft and install the housing bolts but do not install the two next to the guide pins. The guide pins to be removed, and two housing bolts to be tightened to 10 nm (89 inch lbs) for what is left. Clean off any extra material from around the Oil Pan sealing area, next install the Flywheel and tighten it using bolts, tightening them in sequence to 25 nm (18 ft. Lbs). Lastly, you can use the torque angle meter (J 36660-A) in tightening the bolts by an extra 50 degrees so as to release before installing the transmission.
    Posted by ChevyPartsGiant Specialist
    Q:
    How do you install the new crankshaft rear oil seal for the 2004 Buick Rainier? Posted by Customer
    A:
    Use the Rear Seal Installer (J 44227) to install the crankshaft rear oil seal, then remove the installer.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What is the next step after sliding the crankshaft rear oil seal housing over the alignment pins for the 2007 Buick Rainier? Posted by Customer
    A:
    Install the housing bolts, leaving out the two in place of the guide pins.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What is the final step after securing the flywheel for the 2006 Buick Rainier? Posted by Customer
    A:
    Install the transmission.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What is the first step to replace the crankshaft front oil seal for the 2005 Buick Rainier? Posted by Customer
    A:
    Remove the crankshaft balancer, taking care not to damage the engine front cover or the crankshaft.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    How do you remove the crankshaft rear oil seal for the 2006 Chevrolet Trailblazer? Posted by Customer
    A:
    Use a suitable tool to pry the crankshaft rear oil seal out of the rear oil seal housing.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What is the purpose of the Cover Alignment Pins (J 44219) for the 2002 Chevrolet Trailblazer? Posted by Customer
    A:
    They are installed into the block to help align the crankshaft rear oil seal housing.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What should be used for the installation of the new seal for the 2008 Chevrolet Trailblazer? Posted by Customer
    A:
    Utilize the plastic installation sleeve supplied with the new seal.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What should be done after installing the front oil seal for the 2006 GMC Envoy? Posted by Customer
    A:
    Remove the Seal Installer (J 44218) and reinstall the crank balancer shaft.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What should be taken care of during the removal process for the 2009 Chevrolet Trailblazer? Posted by Customer
    A:
    Take care not to damage the engine front cover or the crankshaft.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What is the next step after removing the flywheel for the 2009 GMC Envoy? Posted by Customer
    A:
    Remove the crankshaft rear oil seal housing bolts and install 2 bolts into the jackscrew holes to release the cover from the block.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What tool is used to install the new crankshaft rear oil seal for the 2005 Chevrolet Trailblazer? Posted by Customer
    A:
    Utilize the Rear Seal Installer (J 44227).
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What tool is used to remove the crankshaft rear oil seal from the housing for the 2004 GMC Envoy? Posted by Customer
    A:
    A hammer and punch.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What should be done after releasing the cover from the block for the 2005 GMC Envoy? Posted by Customer
    A:
    Remove the crankshaft and rear oil seal housing, and take out the oil seal from the crankshaft snout.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What should be done after removing the transmission for the 2008 GMC Envoy? Posted by Customer
    A:
    Remove the flywheel bolts to take off the flywheel.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What is the first step to replace the crankshaft rear oil seal for the 2007 GMC Envoy? Posted by Customer
    A:
    First, remove the transmission and the flywheel, taking care not to damage the crankshaft or seal bore.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    What tool is used to install the new crankshaft front oil seal for the 2002 GMC Envoy? Posted by Customer
    A:
    Use the Seal Installer (J 44218) to install it.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    Q:
    How should the crankshaft front oil seal be removed for the 2003 GMC Envoy? Posted by Customer
    A:
    Carefully pry out the crankshaft front oil seal using a suitable tool, ensuring not to damage the engine front cover or the crankshaft.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Seal
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Rear Main Seal 12581717 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 12581717 Rear Main Seal is available in the market under the name GM Crankshaft Seal. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 12581717 Rear Main Seal fits certain Chevrolet Trailblazer, Trailblazer EXT models, as well as GMC Envoy, Envoy XL, Envoy XUV. Additionally, it is compatible with Buick Rainier and Oldsmobile Bravada models.
The original GM component designated by manufacturer part number 12581717 maintains top performance when functioning as the Seal, Engine Rear Main Bearing unit at its Rear. The component 12581717 is constructed from durable material and its dimensions span 5.7 x 5.8 x 1.1 inches while weighing 0.50 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. The part 12581717 has available replacement options 24577096. 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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