Billet Specialties, GM LS Tru Trac Serpentine, AC, PS, polished They are powder coated black

They are powder coated black and fully assembled with ball joints

Part Number - 550-909

smooth drivability

and boost safeties

Billet Specialties, GM LS Tru Trac Serpentine, AC, PS, polished They are powder coated blackTru Trac Systems For LS1 2 3 6 Chevy (Top Mount) Include: Polished Powermaster 170 amp 1 wire alternator Billet aluminum 1pc. alternator fan & pulley Natural finish Edelbrock LS water pump Billet aluminum water pump pulley Billet aluminum bridge bracket Patent pending billet aluminum tensioner engineered specifically for the Tru Trac system Billet aluminum tensioner pulley ATI Super Damper for LS Billet aluminum crankshaft pulley Polished ARP 12 point