We have designed a billet aluminum underdrive main pulley specifically for cars that are not running A/C or Power Steering.

OEM pulley weighs 300g, Aluminum pulley weighs 166g.
OEM pulley is 4.625" dia., Aluminum pulley is 4" dia.

Available in Polished Aluminum or Black, Introductory price is $65.00 at our website: Pulleys & Belts (93+ RX-7)





Comparison to OEM

 

We worked out an agreement with our UR style pulley supplier to sell us the stock diameter billet Alternator and Water pump pulleys, so we now have a three piece billet single belt kit available.

Introductory price is $125.00, for the people that bought the main pulley by itself that would like the other two, just send Elaine an email.

It is highly recommended that an idler be installed with the kit.

Pulleys & Belts (93+ RX-7)

 

Installed

 

perfect timing I will be picking up a single kit and idler for the 20b

 

Great quality product!
Just fyi to everyone the alternator pulley only works with a oem alternator. So be aware when purchasing a replacement alternator! Some will clain theybare sellling a oem rebuild vs a oem replacement.
Non the less the pulley kit is worth every penny.