S550 ESS 8PK Beltdrive System (ATI)

Complete 8PK beltdrive system for ESS G2/3/3X/3R S550 supercharger systems.

Kit includes : 

-ATI harmonic balancer in either 10% or 15% overdrive ratio
-ESS crank saver stud with ARP hardware
-ESS supercharger pulley in desired size
-ESS 8PK alternator pulley S550 specific
-ESS 8PK water pump pulley
-ESS 8/10PK tensioner pulley
-ESS 8/10PK idler pulley 
-8PK premium brand belt
-All installation hardware

ESS Tuning shipping & returns

• Returns: authorized in advance with a return authorization (RMA) number marked on the outside of the package. Parts must be clean, unused, in original condition and packaging, and received within 30 days of the sale date. The customer pays return shipping.
• Restocking fee: 20% on all refunds, except in case of an ESS error. Original shipping costs are non-refundable.
• Final sales: performance ECU software is final after 14 days of delivery or once linked to a car; software and parts for used, custom or non-ESS supercharger systems and special-order items are final.

To start a return or ask a question, contact us with your order number.