*GReddy RB26DETT R33/R34 Skyline GTR Aluminum Under-drive Pulley Kit

* Racing Version has a larger than OEM diameter Water-pump, Power-steering and (MITSUBISHI) Alternator pulleys (to reduce parasitic drag and prevent over-spinning at high RPM.)   The kit also includes two new properly sized accessory belts for the application (fan 4PK910 & p/s 4PK985) and new P/S lock nut. 

 NISSAN Skyline GT-R BCNR33 1/95 - 8/98
 RB26DETT GReddy Aluminum Pulley Kit 13522113
 Larger Dia. Water Pump Pulley, Larger Dia. power steering pump pulley,
 Larger Dia. Alternator pulley **(for Mitsubishi Alternator)

 NISSAN Skyline GT-R BNR34 1/99 - 8/02
 RB26DETT  GReddy Aluminum Pulley Kit 13522113
 Larger Dia. Water Pump Pulley, Larger Dia. power steering pump pulley,
 Larger Dia. Alternator pulley **(for Mitsubishi Alternator)

By reducing the weight of the pulley, the moment of inertia of the engine rotation axis is reduced, improving response. Blue alumite treatment made of duralumin (A2017). 
Compatible with genuine belts and GReddy Extreme Timing Belts

- also see standard OEM sized lightweight R33/R34 Pulley Kit p/n