labwork Valve Seal 12482063 313 X 500 Metal Clad Replacement for LS1 LS2 LS6 4.8 5.3 5.7 6.0
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Free shipping to the US for a limited time
Free Returns
30 days worry-free return.
Secure Payment
One year warranty
Key Features & Technical Advantages
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Precision Oil Control Sealing: Formulated to maintain precise oil metering down the valve stems, preventing oil consumption, blue tailpipe smoke, and carbon buildup on valves.
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High-Temperature Vulcanized Rubber: Engineered with premium heat-resistant elastomer compounds designed to withstand extreme combustion temperatures without hardening or cracking.
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Exact OEM Dimensions: Manufactured to fit GM LS-series engines with 0.313" valve stems and valve guides machined to a 0.500" guide boss diameter.
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Complete V8 Engine Kit: Includes color-coded or structurally differentiated intake and exhaust seals for a full, hassle-free engine head refresh.
Crucial Fitment & Technical Notice
Please Read Before Purchasing: Measure your valve stem and valve guide boss diameters before ordering. This set is specifically designed for GM Gen III/IV V8 engines featuring 0.313" valve stems and 0.500" guide bosses.
Official Application Matrix (GM LS-Series V8 Engines)
Chevrolet Models
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Avalanche: 4.8L / 5.3L / 6.0L V8 | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
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Camaro SS: 6.2L LS3 V8 | 2010, 2011, 2012, 2013, 2014, 2015
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Corvette C5: 5.7L LS1 V8 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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Corvette C5 Z06: 5.7L LS6 V8 | 2001, 2002, 2003, 2004
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Corvette C6: 6.2L LS3 V8 | 2008, 2009, 2010, 2011, 2012, 2013
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Express 2500 / 3500: 6.0L V8 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
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Silverado 1500 / 2500 / 3500: 4.8L / 5.3L / 6.0L V8 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
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SS Sedan: 6.2L LS3 V8 | 2014, 2015, 2016, 2017
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Tahoe / Suburban: 4.8L / 5.3L / 6.0L V8 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
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Trailblazer SS: 6.0L LS2 V8 | 2006, 2007, 2008, 2009
GMC Models
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Savana 2500 / 3500: 6.0L V8 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
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Sierra 1500 / 2500 / 3500: 4.8L / 5.3L / 6.0L V8 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
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Yukon / Yukon XL: 4.8L / 5.3L / 6.0L / 6.2L V8 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
Cadillac Models
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CTS-V: 5.7L LS6 V8 | 2004, 2005
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Escalade / Escalade ESV & EXT: 5.3L / 6.0L / 6.2L V8 | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
Pontiac Models
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Firebird / Trans Am: 5.7L LS1 V8 | 1998, 1999, 2000, 2001, 2002
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GTO: 5.7L LS1 V8 (2004) / 6.0L LS2 V8 (2005) | 2004, 2005
Hummer Models
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H2: 6.0L LQ4 V8 | 2003, 2004, 2005, 2006, 2007, 2008, 2009
Critical Non-Compatibility Warning
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Valve Stem & Boss Dimensions Alert: Will NOT fit early 1997–2001 LS engines that feature non-hat single-piece valve stem seals, nor aftermarket heads with 11/32" or 3/8" valve stems or custom .530" guide bosses. Always verify your cylinder head's valve stem and guide boss specs prior to purchase.
Product Specifications
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Part Type: Engine Valve Stem Seals Set
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OEM Cross-Reference Part Number: 12482063
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Valve Stem Diameter: 0.313 in (7.95 mm)
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Guide Boss Outer Diameter: 0.500 in (12.7 mm)
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Engine Family: GM Gen III / IV V8 (LS / Vortec Series)
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Fitment Type: Direct OEM Replacement
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Condition: 100% Brand New
Package Includes
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8 x Intake Valve Stem Seals
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8 x Exhaust Valve Stem Seals
Important Installation Notes
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Use Valve Stem Protectors: Always place protective plastic sleeves over the valve keeper grooves during installation to prevent slicing or tearing the internal sealing lip.
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Proper Seating: Lubricate seals with clean engine oil and use a dedicated valve seal driver tool to push seals down onto the guide boss until fully seated.
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For more information, please check the following tips:
- Oversized products must ship by truck freight or LTL which is different from other ground shipping methods. Please noted that oversized products are required inspections and a signature service. Freight Shipping Information
- We offer free shipping service for 47 sates in domestics. HI, PR, AK, Guam, Virgin Islands, APOs are excluded from free shipping areas. You will be charged extra shipping fee for orders’ destinations that are not 47 free shipping states.
- "Free Shipping" applies only to orders shipped within the continental United States.
DISCLAIMER
In order to provide all our valued customers with the most up to date and accurate compatibility information, LABWORKAUTO is continuously implementing real-time updates to our line store. Due to the immediate nature of these updates, the correction of any errors or omissions might happen at any time without prior notice. This information may include but not limited to pricing, availability, suggested use, fitment, compatibility and warranties. LABWORKAUTO is not responsible for any additional labor cost, charge, loss or damage incurred as a result of correct or incorrect information, reference or products purchase from LABWORKAUTO. While we are working to avoid any errors or omissions that may appear on LABWORKAUTO website, we reserve the rights to cancel any undeliverable orders based on inaccurate information.
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RETURN
If you are not completely satisfied with your purchase, we will be happy to accept a return for a refund or exchange on products in new/unused condition within 30 days of delivery. All authorized returns must be unused and in their original condition, including all items and components that were included in the original package. Items being returned must not have been disassembled, mounted, modified, or damaged due to incorrect installation or user error. LABWORKAUTO.com will not be held responsible for installation or labor expenses, towing expenses, additional repair expenses, or rental car expenses caused by the use of wrong or defective parts during installation.We provide a limited warranty of 90 days for defective products from the date the product is received by the original purchaser or installer, unless otherwise specified at the time of purchase.
For each of our product warranties offered above, the following provisions apply:
The warranty is limited only to the original purchaser and is non-transferable.
Under NO circumstances will our liability exceed the amount of the original sale.
Each warranty does not cover any labor costs or incidental, indirect, special or consequential damages such as, but not limited to, physical injuries or property damage, loss of time, loss of use of the vehicle, inconvenience, air freight charges, rental vehicle charges, towing charges or accommodations resulting from a defect in or failure of the part.
A prepaid shipping label will be issued for all returns due to warranty claim.
The warranty does not cover lost or stolen packages. Because the customer is the shipper, he/she is the only one who can file any lost claim with the shipping company. Therefore, the claim must be coordinated and processed through the shipping company by the customer.