Oil Cooler Line
Fits Sierra 1500 Base Model; Engine Oil Cooling System (KC4); 1st Design; w/ 7.75MM FROM END OF PIPE TO START OF FLARE USE 1ST DESIGN)or Sierra 1500 HD; Engine Oil Cooling System (KC4); 1st Design; w/ 7.75MM FROM END OF PIPE TO START OF FLARE USE 1ST DESIGN)
Oil Cooler Line
Fits Sierra 1500 Base Model; w/ 11.75MM FROM END OF PIPE TO START OF THE FLARE USE 2ND DESIGN(; Engine Oil Cooling System (KC4); 2nd Designor Sierra 1500 HD; w/ 11.75MM FROM END OF PIPE TO START OF THE FLARE USE 2ND DESIGN(; Engine Oil Cooling System (KC4); 2nd Design