Specialty-Z Pulley

Unorthodox Underdrive Pulley & HI OD Water Pump Pulley

Please be aware that these pulleys are now ONLY being offered in polished aluminum.

These high quality pulleys offer a significant power increase for both Non-Turbo & Turbo. Not only do they spin the accessories slower for more power, but they also weigh less. Taking weight off the crank frees up more horsepower. Genuine Nissan belts are included with your purchase.

$210.00 + Shipping

When ordering, please specify: year, NA and/or TT

For 90-93 TTs that are using an NA pump, select NA for model type.

Model
Year

HI Overdrive Water Pump Pulley

Designed to drive the water pump back to normal rotating speeds when using an underdrive crank pulley. Allows for cooler water operating temperatures. Please note that this requires a different belt to drive the pump/alternator. In some instances some have been able to reuse their existing belts.

$95 Shipped w/o belt

$105 Shipped with belt

UD & OD Pulley Kit

Purchase the UD/OD pulley together with belts.

Please note that color option is only for the OD Water Pump Pulley.

$305.00 + Shipping

When ordering, please specify: year, NA and/or TT

For 90-93 TTs that are using an NA pump, select NA for model type.

Vibration Dampener?
We have installed tons of these pulleys and have not had one engine failure due to the pulley. This is true for inline engines and those built with poor engineering/balancing. We use these on our own vehicles.

OD W. Pump Pulley
To be used in conjunction only with underdrive crank pulleys. Installing one with a factory or any "normal" drive crank pulley will lead to cavitation and water pump failure. Requires different belt.