While the GM/UAW strike is over, there are still a SMALL NUMBER of supply chain issues. If your order is affected by one of these then we will email you with updates. Thank you for shopping with GMPartsDirect.com!
My Cart

Cart is Empty

8.50", 8.625" Cover Gasket - GM (15860607)

  • MSRP: $39.57
  • Discount: $14.40 (36.4% off)
  • Sale Price: $25.17
Manufacturer Warranty Minimum of 12 Months
Guaranteed Fitment Always the correct parts
Shop with Confidence Your information is safe
In-House Experts We know our products

This item may be a Special Order Part. Most special order parts will generally ship from our warehouse within 48-72 hours but may take up to 7-10 business days based upon their availability from General Motors before shipping from our facility in North Carolina. For parts availability questions please contact us at customerservice@gmpartsdirect.com.

This item may be a Special Order Part. Most special order parts will generally ship from our warehouse within 48-72 hours but may take up to 7-10 business days based upon their availability from General Motors before shipping from our facility in North Carolina. For parts availability questions please contact us at customerservice@gmpartsdirect.com.

  • Details
  • Also Purchased
  • Additional Info
  • Vehicle Fitment
  • Product Reviews
  • Ask Our Team
  • Warranty & Disclosures
  • Installation Instructions
  • Policies

Details

  • Brand:
    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • SKU: 15860607
  • Positions: Rear
  • Other Names: Cover Gasket
  • Description:

    Express, savana. Silverado, sierra. 8.6 ring gear. 10-bolt cover. Silverado, sierra. 9.50 ring gear. 10-bolt cover. 1/2 ton. Hummer H3. Canyon, Colorado. 5.3l. Electronic Stability Control. Ring Gear 8.625". 4.3L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

  • Condition: New
  • Applications: 8.50 & 8.625. W/LIMITED SLIP.
  • Sold In Quantity: 1

Vehicle Fitment

Vehicle Fitment
Year Make Model Body & Trim Engine & Transmission
2022 Chevrolet Silverado 1500 Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, WT, ZR2 2.7L L4 - Gas, 3.0L L6 - Diesel, 5.3L V8 - Gas, 6.2L V8 - Gas
2022 Chevrolet Silverado 1500 LTD Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, SSV, WT 2.7L L4 - Gas, 3.0L L6 - Diesel, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2021 Chevrolet Silverado 1500 Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, SSV, WT 2.7L L4 - Gas, 3.0L L6 - Diesel, 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2021 GMC Sierra 1500 AT4, Base, Denali, Elevation, SLE, SLT 2.7L L4 - Gas, 3.0L L6 - Diesel, 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2020 Chevrolet Silverado 1500 Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, SSV, WT 2.7L L4 - Gas, 3.0L L6 - Diesel, 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2020 GMC Sierra 1500 AT4, Base, Denali, Elevation, SLE, SLT 2.7L L4 - Gas, 3.0L L6 - Diesel, 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2019 Chevrolet Silverado 1500 Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, SSV, WT 2.7L L4 - Gas, 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2019 Chevrolet Silverado 1500 LD Custom, LT, WT 5.3L V8 - Flex, 5.3L V8 - Gas
2019 GMC Sierra 1500 AT4, Base, Denali, Elevation, SLE, SLT 2.7L L4 - Gas, 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2018 Chevrolet Silverado 1500 Custom, High Country, LS, LT, LTZ, SSV, WT 4.3L V6 - Flex, 5.3L V8 - Electric/Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 5.3L V8 - MILD HYBRID EV-GAS (MHEV), 6.2L V8 - Gas
2018 GMC Sierra 1500 Base, Denali, SLE, SLT 4.3L V6 - Flex, 5.3L V8 - Electric/Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 5.3L V8 - MILD HYBRID EV-GAS (MHEV), 6.2L V8 - Gas
2017 Chevrolet Silverado 1500 Custom, High Country, LS, LT, LTZ, SSV, WT 4.3L V6 - Flex, 5.3L V8 - Electric/Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 5.3L V8 - MILD HYBRID EV-GAS (MHEV), 6.2L V8 - Gas
2017 GMC Sierra 1500 Base, Denali, SLE, SLT 4.3L V6 - Flex, 5.3L V8 - Electric/Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 5.3L V8 - MILD HYBRID EV-GAS (MHEV), 6.2L V8 - Gas
2016 Chevrolet Silverado 1500 Custom, High Country, LS, LT, LTZ, SSV, WT 4.3L V6 - Flex, 5.3L V8 - Electric/Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 5.3L V8 - MILD HYBRID EV-GAS (MHEV), 6.2L V8 - Gas
2016 GMC Sierra 1500 Base, Denali, SLE, SLT 4.3L V6 - Flex, 5.3L V8 - Electric/Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 5.3L V8 - MILD HYBRID EV-GAS (MHEV), 6.2L V8 - Gas
2015 Chevrolet Silverado 1500 High Country, LS, LT, LTZ, SSV, WT 4.3L V6 - Flex, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2015 GMC Sierra 1500 Base, Denali, SLE, SLT 4.3L V6 - Flex, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2014 Cadillac Escalade Base, Luxury, Platinum, Premium 6.2L V8 - Flex
2014 Cadillac Escalade ESV Base, Luxury, Platinum, Premium 6.2L V8 - Flex
2014 Chevrolet Express 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2014 Chevrolet Express 2500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2014 Chevrolet Express 3500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2014 Chevrolet Silverado 1500 High Country, LT, LTZ, WT 4.3L V6 - Flex, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.2L V8 - Gas
2014 Chevrolet Suburban 1500 LS, LT, LTZ 5.3L V8 - Flex
2014 Chevrolet Tahoe LS, LT, LTZ, PPV, SSV 5.3L V8 - Flex
2014 GMC Savana 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2014 GMC Savana 2500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2014 GMC Savana 3500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2014 GMC Sierra 1500 Base, Denali, SLE, SLT 4.3L V6 - Flex, 5.3L V8 - Flex, 6.2L V8 - Gas
2014 GMC Yukon Denali, SLE, SLT 5.3L V8 - Flex, 6.2L V8 - Flex
2014 GMC Yukon XL 1500 Denali, SLE, SLT 5.3L V8 - Flex, 6.2L V8 - Flex
2013 Cadillac Escalade Base, Hybrid, Hybrid Platinum, Luxury, Platinum, Premium 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2013 Cadillac Escalade ESV Base, Luxury, Platinum, Premium 6.2L V8 - Flex
2013 Cadillac Escalade EXT Base, Luxury, Premium 6.2L V8 - Flex
2013 Chevrolet Avalanche Black Diamond LS, Black Diamond LT, Black Diamond LTZ 5.3L V8 - Flex
2013 Chevrolet Express 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2013 Chevrolet Express 2500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2013 Chevrolet Express 3500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2013 Chevrolet Silverado 1500 Hybrid, LS, LT, LTZ, WT, XFE 4.3L V6 - Gas, 4.8L V8 - Flex, 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2013 Chevrolet Suburban 1500 LS, LT, LTZ 5.3L V8 - Flex
2013 Chevrolet Tahoe Hybrid, LS, LT, LTZ, PPV, SSV 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV
2013 GMC Savana 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2013 GMC Savana 2500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2013 GMC Savana 3500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2013 GMC Sierra 1500 Denali, Hybrid, SL, SLE, SLT, WT, XFE 4.3L V6 - Gas, 4.8L V8 - Flex, 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2013 GMC Yukon Denali, Denali Hybrid, Hybrid, SLE, SLT 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2013 GMC Yukon XL 1500 Denali, SLE, SLT 5.3L V8 - Flex, 6.2L V8 - Flex
2012 Cadillac Escalade Base, Hybrid, Hybrid Platinum, Luxury, Platinum, Premium 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2012 Cadillac Escalade ESV Base, Luxury, Platinum, Premium 6.2L V8 - Flex
2012 Cadillac Escalade EXT Base, Luxury, Premium 6.2L V8 - Flex
2012 Chevrolet Avalanche LS, LT, LTZ 5.3L V8 - Flex
2012 Chevrolet Colorado LT, WT 2.9L L4 - Gas, 3.7L L5 - Gas, 5.3L V8 - Gas
2012 Chevrolet Express 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2012 Chevrolet Express 2500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2012 Chevrolet Express 3500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2012 Chevrolet Silverado 1500 Hybrid, LS, LT, LTZ, WT, XFE 4.3L V6 - Gas, 4.8L V8 - Flex, 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2012 Chevrolet Suburban 1500 LS, LT, LTZ 5.3L V8 - Flex
2012 Chevrolet Tahoe Hybrid, LS, LT, LTZ, PPV, SSV 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV
2012 GMC Canyon SLE, SLT, WT 2.9L L4 - Gas, 3.7L L5 - Gas, 5.3L V8 - Gas
2012 GMC Savana 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2012 GMC Savana 2500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2012 GMC Savana 3500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2012 GMC Sierra 1500 Denali, Hybrid, SL, SLE, SLT, WT, XFE 4.3L V6 - Gas, 4.8L V8 - Flex, 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2012 GMC Yukon Denali, Denali Hybrid, Hybrid, SLE, SLT 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2012 GMC Yukon XL 1500 Denali, SLE, SLT 5.3L V8 - Flex, 6.2L V8 - Flex
2011 Cadillac Escalade Base, Hybrid, Hybrid Platinum, Luxury, Platinum, Premium 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2011 Cadillac Escalade ESV Base, Luxury, Platinum, Premium 6.2L V8 - Flex
2011 Cadillac Escalade EXT Base, Luxury, Premium 6.2L V8 - Flex
2011 Chevrolet Avalanche LS, LT, LTZ 5.3L V8 - Flex
2011 Chevrolet Colorado LT, WT 2.9L L4 - Gas, 3.7L L5 - Gas, 5.3L V8 - Gas
2011 Chevrolet Express 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2011 Chevrolet Express 2500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2011 Chevrolet Express 3500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2011 Chevrolet Silverado 1500 Hybrid, LS, LT, LTZ, WT, XFE 4.3L V6 - Gas, 4.8L V8 - Flex, 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2011 Chevrolet Suburban 1500 LS, LT, LTZ 5.3L V8 - Flex
2011 Chevrolet Tahoe Hybrid, LS, LT, LTZ, PPV 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV
2011 GMC Canyon SLE, SLT, WT 2.9L L4 - Gas, 3.7L L5 - Gas, 5.3L V8 - Gas
2011 GMC Savana 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2011 GMC Savana 2500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2011 GMC Savana 3500 Base, LS, LT 4.8L V8 - Flex, 6.0L V8 - CNG, 6.0L V8 - Flex, 6.6L V8 - Diesel
2011 GMC Sierra 1500 Denali, Hybrid, SL, SLE, SLT, WT, XFE 4.3L V6 - Gas, 4.8L V8 - Flex, 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2011 GMC Yukon Denali, Denali Hybrid, Hybrid, SLE, SLT 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2011 GMC Yukon XL 1500 Denali, SLE, SLT 5.3L V8 - Flex, 6.2L V8 - Flex
2010 Cadillac Escalade Base, Hybrid, Hybrid Platinum, Platinum 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2010 Cadillac Escalade ESV Base, Platinum 6.2L V8 - Flex
2010 Cadillac Escalade EXT Base 6.2L V8 - Flex
2010 Chevrolet Avalanche LS, LT, LTZ 5.3L V8 - Flex
2010 Chevrolet Colorado LT, WT 2.9L L4 - Gas, 3.7L L5 - Gas, 5.3L V8 - Gas
2010 Chevrolet Express 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2010 Chevrolet Silverado 1500 Hybrid, LS, LT, LTZ, WT, XFE 4.3L V6 - Gas, 4.8L V8 - Flex, 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2010 Chevrolet Suburban 1500 LS, LT, LTZ 5.3L V8 - Flex
2010 Chevrolet Tahoe Hybrid, LS, LT, LTZ, PPV 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV
2010 GMC Canyon SLE, SLT, WT 2.9L L4 - Gas, 3.7L L5 - Gas, 5.3L V8 - Gas
2010 GMC Savana 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex
2010 GMC Sierra 1500 Denali, Hybrid, SL, SLE, SLT, WT, XFE 4.3L V6 - Gas, 4.8L V8 - Flex, 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2010 GMC Yukon Denali, Denali Hybrid, Hybrid, SLE, SLT 5.3L V8 - Flex, 6.0L V8 - Electric/Flex, 6.0L V8 - FULL HYBRID EV-FLEX (FHEV, 6.2L V8 - Flex
2010 GMC Yukon XL 1500 Denali, SLE, SLT 5.3L V8 - Flex, 6.2L V8 - Flex
2010 Hummer H3 Alpha, Base 3.7L L5 - Gas, 5.3L V8 - Flex
2010 Hummer H3T Alpha, Base 3.7L L5 - Gas, 5.3L V8 - Flex
2009 Cadillac Escalade Base, Hybrid, Platinum 6.0L V8 - Electric/Gas, 6.0L V8 - FULL HYBRID EV-GAS (FHEV), 6.2L V8 - Flex
2009 Cadillac Escalade ESV Base, Platinum 6.2L V8 - Flex
2009 Cadillac Escalade EXT Base 6.2L V8 - Flex
2009 Chevrolet Avalanche LS, LT, LTZ 5.3L V8 - Flex, 5.3L V8 - Gas, 6.0L V8 - Gas
2009 Chevrolet Colorado LT, WT 2.9L L4 - Gas, 3.7L L5 - Gas, 5.3L V8 - Gas
2009 Chevrolet Express 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas
2009 Chevrolet Silverado 1500 Hybrid, LS, LT, LTZ, WT 4.3L V6 - Gas, 4.8L V8 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.0L V8 - Electric/Gas, 6.0L V8 - FULL HYBRID EV-GAS (FHEV), 6.0L V8 - Gas, 6.2L V8 - Flex
2009 Chevrolet Suburban 1500 LS, LT, LTZ 5.3L V8 - Flex, 5.3L V8 - Gas, 6.0L V8 - Gas
2009 Chevrolet Tahoe Hybrid, LS, LT, LTZ, PPV 4.8L V8 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.0L V8 - Electric/Gas, 6.0L V8 - FULL HYBRID EV-GAS (FHEV), 6.2L V8 - Flex
2009 GMC Canyon SLE, SLT, WT 2.9L L4 - Gas, 3.7L L5 - Gas, 5.3L V8 - Gas
2009 GMC Savana 1500 Base, LS, LT 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas
2009 GMC Sierra 1500 Denali, Hybrid, SL, SLE, SLT, WT 4.3L V6 - Gas, 4.8L V8 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.0L V8 - Electric/Gas, 6.0L V8 - FULL HYBRID EV-GAS (FHEV), 6.0L V8 - Gas, 6.2L V8 - Flex
2009 GMC Yukon Denali, Hybrid, SLE, SLT 4.8L V8 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas, 6.0L V8 - Electric/Gas, 6.0L V8 - FULL HYBRID EV-GAS (FHEV), 6.2L V8 - Flex
2009 GMC Yukon XL 1500 Denali, SLE, SLT 5.3L V8 - Flex, 5.3L V8 - Gas, 6.0L V8 - Gas, 6.2L V8 - Flex
2009 Hummer H3 Adventure, Alpha, Base, Championship Series, Luxury, X 3.7L L5 - Gas, 5.3L V8 - Gas
2009 Hummer H3T Alpha, Base 3.7L L5 - Gas, 5.3L V8 - Gas
2008 Hummer H3 Alpha, Base, X 3.7L L5 - Gas, 5.3L V8 - Gas
2007 Hummer H3 Base, X 3.7L L5 - Gas
2006 Hummer H3 Base 3.5L L5 - Gas
(118113 more fitments)

Product Reviews

Flow Automotive Center GMPartsDirect.com

This item is a Special Order Part. Most special order parts will generally ship from our warehouse within 48-72 hours but may take up to 7-10 business days based upon their availability from General Motors before shipping from our facility in North Carolina. For parts availability questions please contact us at customerservice@gmpartsdirect.com.

GM

This item is a Special Order Part. Most special order parts will generally ship from our warehouse within 48-72 hours but may take up to 7-10 business days based upon their availability from General Motors before shipping from our facility in North Carolina. For parts availability questions please contact us at customerservice@gmpartsdirect.com.

All Genuine GM parts are covered by GM's 12 month "parts warranty period" from the date of invoice. If this part is defective, you should be able to get the warranty claim processed by your local GM dealership's service department, or any GM dealership nationwide with a dealership copy of your invoice.  Please contact us for a dealership copy of your invoice.  We will also be able to assist in any warranty claims.