Gen 3 Vortec Harness Gen 3 Vortec Harness; Vortec; Standard Length; EMC/PMC Service #s 12200100 Or 9354896; Controlled 4L60E Or 6 Speed Transmissions CHEVROLET AVALANCHE 1500 C1500 PICKUP C1500 SUBURBAN C2500 PICKUP C2500 SUBURBAN C3500 PICKUP SILVERADO 1500 SILVERADO 1500 HD SILVERADO 2500 SILVERADO 2500 HD SILVERADO 3500 SSR SUBURBAN 1500 SUBURBAN 2500 TAHOE TRAILBLAZER TRAILBLAZER EXT BASE LIMITED LS LT LTZ NORTH FACE ON ROAD EDITION SS WBH WT Z66 Z71 1999 2000 2001 2002 2003 2004 2005 2006 4.3L (262) Vortec 4.3L L35 (262) Vortec 4.3L LU3 (262) Vortec 4.8L GEN III LR4 Vortec (294) 5.3L GEN III Flex L59 Vortec (325) 5.3L GEN III L33 Vortec (325) 5.3L GEN III LM4 Vortec (323) 5.3L GEN III LM4 Vortec (325) 5.3L GEN III LM7 Vortec (325) 5.3L GEN IV LH6 Vortec (323) 5.3L GEN IV LH6 Vortec (325) 5.7L L31 (350) Vortec 5L GEN 1 L30 Vortec (305) 6L GEN III LQ4 Vortec (364) 6L GEN III LQ9 HO Vortec (364) 8.1L L18 Vortec (496) CNG FLEX GAS Painless Wiring Painless Wiring Gen 3 Vortec Harness - 60217 60217 Engine Wiring Harness