1986 GMC C3500 5.0L V8. 1979-1986 GMC C3500 4.8L 6 Cyl. 1979-1984 GMC C3500 7.4L V8. 1979 GMC C3500 6.6L V8. 1979-1980, 1982-1986 GMC C3500 5.7L V8. 1979-1980 GMC C3500 4.1L 6 Cyl. Notes: New Compressor -- May Require 1311339 Compressor Manifold Seal Kit; PAG 150 Oil; with 1 Groove Pulley; with R4 Compressor; with Coil at 12 O'Clock; 1.2 in Groove Distance.
