Description: 4.3L, 2018-19. Express, savana. 4.3l. Wire set. 6.6L gas. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Spark plug wire. Corvette. 6.2L supercharged, acdelco #758dd. Durable to help transfer high voltage pulses without damage This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors