Iridium Spark Plugs and Wires Set for Chevy 5.3L Silverado 1500 Suburban Avalanche Tahoe 4.8L 6.0L, 41 110 12621258 Spark Plugs Compatible with GMC Yukon Sierra Item Description ?5.3 Spark Plugs Wires Replacements?Spark plug OE: 41-110, 12621258 ,Direct replacement, plug n play, saving time and effort. It will help to improve the gas mileage of your vehicle and deliver excellent performance for a long time ?Compatible Vehicles?41 110 spark plugs compatible with GM vehicles: For 2007-2014 Chevrolet Avalanche; 2008-2014 Chevrolet Tahoe; 2011-2014 Chevrolet Caprice; 2007-2012 Chevrolet Colorado; 2007-2013 Chevrolet Corvette; 2007-2011 Chevrolet Express 1500; 2007-2011 Chevrolet Express 2500; 2007-2011 Chevrolet Express 3500; 2007-2013 Chevrolet Silverado 1500; 2007-2014 Chevrolet Silverado 2500 HD; 2007-2014 Chevrolet Silverado 3500 HD; 2007-2014 Chevrolet Suburban 1500; 2007-2013 Chevrolet Suburban 2500 ?Long Lasting Time?These iridium spark plugs can provide up to 100000 miles of service before needing a replacement, dual Iridium tip for improved resistance to spark erosion fouling and corrosive combustion chamber environment insulator that improves the plug to boot seal Iridium center electrode and Iridium pad that lower the ignition demand voltage and reduce the possible flame ?Excellent Durability? Kernel quenching one-piece integral suppressor seal that helps reduce radio frequency interference meters spark plug energy to help provide long electrode life and seals against compression leakage, Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance ?24 MONTHS GUARANTEE?Exquisite workmanship, strict quality control, and excellent after-sales service, which is why our spark plug wire set is worth your purchase. We provide True and effective 24 months warranty, please buy it without worries ? See more product details *For 2008-2018 Express 2500 3500 V8 4.8L/4.8L FLEX/6.0L/6.0L FLEX/6.0L CNG *For 2007-2013 Silverado 1500 V8 4.8L/5.3L/6.0L/6.2L/6.0L FLEX ELECTRIC GAS *For 2007-2018 Silverado 2500HD 3500HD V8 6.0L/6.0L FLEX/6.0L CNG *For 2007-2014 Tahoe V8 4.8L/5.3L/6.2L/6.0L FLEX ELECTRIC GAS *For 2005-2006 Envoy XL V8 5.3L 05 Envoy XUV V8 5.3L *For 2008-2018 Savana 2500 3500 V8 4.8L/4.8L FLEX/6.0L/6.0L FLEX/6.0L CNG *For 2007-2013 Sierra 1500 V8 4.8L/4.8LFLEX/5.3L/6.2L/6.0L/6.0L FLEX ELECTRIC GAS *For 2007-2018 Sierra 2500 3500 HD V8 6.0L/6.0L FLEX/6.0L CNG *For 2007-2014 Yukon V8 4.8L/5.3L /6.2L/6.0L FLEX ELECTRIC GAS *For Cadillac 2006-2007 CTS V8 6.0L / For 07-14 Escalade V8 6.0L FLEX ELECTRIC GAS/6.2L *For Cadillac 2007-2014 Escalade ESV Escalade EXT V8 6.2L Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.