Genuine GM Radiator Insulator 15982543

6.5L diesel. 6.2L diesel. 4.8, 5.3, & 6.0L, 5.3L. 2003-14 4.3L. 1/2, 3/4 & 1 ton, 1996 new style, 5.0, 5.7, 7.4 & 8.1L, 5.0, 5.7L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors.