1. Function: Turn on and off the primary circuit of the ignition system according to the ignition signal sent by the ignition signal generator, so that the secondary of the ignition coil generates high voltage. 2. Using high-quality materials, the product is not prone to aging and corrosion, and the product has a long life. 3. Installation position: on the cylinder head 4. Material: ABS+metal 5. Socket type: male plug 6. Number of terminals: 4 7. OE: 10482803, 16201599, 8104828030 8. Applicable models: Suitable for BUICK>ROADMASTER>1996 Suitable for CADILLAC>ESCALADE>1999-2000 Suitable for CADILLAC>FLEETWOOD>1996 Suitable for CHEVROLET>ASTRO>1996-2005 Suitable for CHEVROLET>BLAZER>1996-2005 Suitable for CHEVROLET>C1500 PICKUP>1996-1999 Suitable for CHEVROLET>C1500 SUBURBAN>1996-1999 Suitable for CHEVROLET>C2500 PICKUP>1996-2000 Suitable for CHEVROLET>C2500 SUBURBAN>1996-1999 Suitable for CHEVROLET>C3500 PICKUP>1996-2000 Suitable for CHEVROLET>CAMARO>1996-1997 Suitable for CHEVROLET>CAPRICE>1996 Suitable for CHEVROLET>CARGO VAN>1997-1999 Suitable for CHEVROLET>CORVETTE>1996 Suitable for CHEVROLET>EXPRESS 1500>1996-2007 Suitable for CHEVROLET>EXPRESS 2500>1996-2005 Suitable for CHEVROLET>EXPRESS 3500>1996-2002 Suitable for CHEVROLET>G30>1996-2001 Suitable for CHEVROLET>IMPALA>1996 Suitable for CHEVROLET>K1500 PICKUP>1996-1999 Suitable for CHEVROLET>K1500 SUBURBAN>1996-1999 Suitable for CHEVROLET>K2500 PICKUP>1996-2000 Suitable for CHEVROLET>K2500 SUBURBAN>1996-1999 Suitable for CHEVROLET>K3500 PICKUP>1996-2000 Suitable for CHEVROLET>P30>1996-1999 Suitable for CHEVROLET>S10 PICKUP>1996-2004 Suitable for CHEVROLET>SILVERADO 1500>1999-2006 Suitable for CHEVROLET>SILVERADO 1500 CLASSIC>2007 Suitable for CHEVROLET>SONORA>2000 Suitable for CHEVROLET>TAHOE>1996-2000 Suitable for GMC>C1500 PICKUP>1996-1999 Suitable for GMC>C1500 SUBURBAN>1996-1999 Suitable for GMC>C2500 PICKUP>1996-2000 Suitable for GMC>C2500 SUBURBAN>1996-1999 Suitable for GMC>C3500 PICKUP>1996-2000 Suitable for GMC>G3500>1996 Suitable for GMC>JIMMY>1996-2005 Suitable for GMC>K1500 PICKUP>1996-1999 Suitable for GMC>K1500 SUBURBAN>1996-1999 Suitable for GMC>K2500 PICKUP>1996-2000 Suitable for GMC>K2500 SUBURBAN>1996-1999 Suitable for GMC>K3500>1996-2000 Suitable for GMC>P3500>1996-1999 Suitable for GMC>SAFARI>1996-2005 Suitable for GMC>SAVANA 1500>1996-2007 Suitable for GMC>SAVANA 2500>1996-2005 Suitable for GMC>SAVANA 3500>1996-2002 Suitable for GMC>SIERRA 1500>1999-2007 Suitable for GMC>SONOMA>1996-2004 Suitable for GMC>YUKON>1996-2000 Suitable for ISUZU>HOMBRE>1997-2000 Suitable for OLDSMOBILE>BRAVADA>1996-2001 Suitable for PONTIAC>FIREBIRD>1996-1997