title: 8Pcs Ignition Coils ＆ 8mm Spark Plug Wires Set Compatible with Chevrolet Silverado Suburban Avalanche GMC Sierra Yukon XL Savana 4.8L 5.3L 6.0L 6.6L 8.1L Replace 12558693 12556893 3859078 UF271 D581
full: 8Pcs Ignition Coils ＆ 8mm Spark Plug Wires Set Compatible with Chevrolet Silverado Suburban Avalanche GMC Sierra Yukon XL Savana 4.8L 5.3L 6.0L 6.6L 8.1L Replace    UF271 D581
  ['Compatible With:1999-2006 Chevrolet Silverado 1500,1999 - 2007 Chevrolet Silverado 2500,2000-2006 Chevrolet Tahoe AHOE,2000 - 2006 Chevrolet Suburban 1500/2500,2001-2007 Chevrolet Silverado 3500,2002-2006 Chevrolet Avalanche 1500,2003-2004 Chevrolet SSR/Sonora,2003-2006 Chevrolet Avalanche 2500/Express 1500,2003-2005 Chevrolet Express 2500,2003-2004 Chevrolet Express 3500/Trailblazer,2006 Chevrolet Monte Carlo', 'Compatible With:1999 - 2007 GMC Sierra 1500/2500,2000-2006 GMC Yukon/XL 1500/XL 2500,2001-2007 GMC Siera 3500,2003-2004 GMC Envoy,2003-2005 GMC Savana AVANA 1500/Savana 2500/Savana 3500,2001-2007 Mercruiser All Models,2002-2006 Escalade ,2003-2007 H2 , 2004-2005 Workhorse Fastrack FT1061/FT1461/FT1601/FT1801,2005 Workhorse Fastrack FT1261', 'Replace Part Number:, , , , , , D581, UF271', 'Feature:The square ignition coils improve throttle response , improve gas mileage , hard to fire and improve the fuel economy. The more strength and conductivity spark plug wires .', 'Function：Ignition coils can provide above 45,000 volts pressure and solve the problems such as idling speed ，engine jitter which is caused by the aging of the ignition coil .']
  {"Manufacturer": "", "Brand": "", "Model": "WWJ491", "Item Weight": "6.43 pounds", "Package Dimensions": "14.09 x 10.08 x 2.76 inches", "Country of Origin": "China", "Manufacturer Part Number": "WWJ491", "OEM Part Number": ", , , , , , D581, UF271", "Date First Available": "December 23, 2021"}