ApplicationCompatible for Cadillac Compatible for Escalade (2002 - 2006) Compatible for Chevrolet AVALANCHE 1500 (2002 - 2006) Compatible for Chevrolet AVALANCHE 2500 (2003 - 2006) Compatible for Chevrolet EXPRESS 1500 (2003 - 2006) Compatible for Chevrolet EXPRESS 2500 (2003 - 2005) Compatible for Chevrolet EXPRESS 3500 (2003 - 2004) Compatible for Chevrolet MONTE CARLO 2006 compatible for Chevrolet SILVERADO 2500 (1999 - 2007) Compatible for Chevrolet SILVERADO 3500 (2001 - 2007) Compatible for Chevrolet SONORA (2003 - 2004) Compatible for Chevrolet SSR (2003 - 2004) Compatible for Chevrolet SUBURBAN 1500 (2000 - 2006) Compatible for Chevrolet SUBURBAN 2500 (2000 - 2006) Compatible for Chevrolet TAHOE (2000 - 2006) Compatible for Chevrolet TRAILBLAZER (2003 - 2004) Compatible for GMC ENVOY (2003 - 2004) Compatible for GMC SAVANA 1500 (2003 - 2005) Compatible for GMC SAVANA 2500 (2003 - 2005) Compatible for GMC SAVANA 3500 (2003 - 2005) Compatible for GMC SIERRA 1500 (1999 - 2007) Compatible for GMC SIERRA 2500 (1999 - 2007) Compatible for GMC SIERRA 3500 (2001 - 2007) Compatible for GMC YUKON (2000 - 2006) Compatible for GMC YUKON XL 1500 (2000 - 2006) Compatible for GMC YUKON XL 2500 (2000 - 2006) Compatible for Hummer H2 (2003 - 2007) Compatible for MERCRUISER All Models (2001 - 2007) Compatible for WORKHORSE FASTRACK FT1061 (2004 - 2005) Compatible for WORKHORSE FASTRACK FT1261 2005 compatible for WORKHORSE FASTRACK FT1461 (2004 - 2005) Compatible for WORKHORSE FASTRACK FT1601 (2004 - 2005) Compatible for WORKHORSE FASTRACK FT1801 (2004 - 2005)Reference OE NumberUF271,UF-271, C1208, 5C1083 D581,521618,50253, GN10298 IC328, IC400, C561, 9201052, 26347 12556893, 12558693, 12570553 3859078, 38590782, 392889925SpecificationIgnition Coils compatible for Chevy Silverado compatible for GMC Pickup Truck V8 4.8L 5.3L 6.0L 8.1L Condition: 100% Brand new Quantity: One set with 8 pieces （as the picture show） Warranty:one year warranty for any manufacture defectFeature- Increased Ignition Performance --- High voltage output and spark energy - Improved Combustion - Improved throttle response and smoothness - No spark blowout at higher boost - Direct fit for factory mountings - Solid construction Notice- No instruction included; professional suggested. - Please double confirm the fitment details and OEM number before purchasing. - Please feel free to contact us for whatever we can help for you.