Sanden 508 Billet Head for 7 piston compressors with R4 Fittings. CNC machined from a solid block of 6061-T6 billet aluminum. Allows the use of factory R4 compressor hoses with a Sanden 7 piston compressor. Sanden 7 piston compressors have 6 bolts on the head.
* Uses Murray Climate Control "Red" and "Green" seals 24342.
* Some R4 manifolds will not clear tall valve covers.