Description
Price is $200 plus GST
Fright is $20
RajabRacing Developments RB Billet Water Pump Underdrive Pulley
RajabRacing Developments billet RB-series water pump underdrive pulleys are designed to improve cooling system stability in high-performance and high-RPM applications.
Manufactured from CNC-machined billet aluminium, these pulleys are built larger than factory diameter, resulting in approximately 9–10% reduction in water pump speed. This helps reduce the chance of coolant cavitation at higher engine RPM, improving reliability and cooling efficiency in modified street and race engines.
Features
- CNC machined from high-grade billet aluminium
- Approx. 9–10% underdrive vs factory pulley
- Helps reduce water pump cavitation at high RPM
- Improves cooling system stability in performance engines
- Lightweight and durable construction
- Direct replacement fit
- Available in Black anodised or Silver anodised
- Designed and manufactured by RajabRacing Developments
Suitability
Fits:
- Nissan RB20
- Nissan RB25
- Nissan RB26
- Nissan RB30
Suitable for street, track, and all motorsport applications



