Thermactor smog hose installation clamps. Fits all Ford and Mercury 1968 S code 390-4V or W code 427-4V engines sold in the US. Additionally fits 1968-70 428 Cobra Jet and Super Cobra Jet engines. Set of clamps, several bolts and spacer as shown. Include bolts for pump pulley, top bolt on pump for adjusting bracket, and pivot bolt and spacer for pump.