The Rotary13B1.com Aluminum Rotor Shaped Dual Sheaved Alternator Pulley. Our pulley is machined from Aluminum and includes the all important Rotor Shape at the front of the unit. This piece is unfinished after machining, and has a natural aluminum finish
Fits: 74-92 12A & 13B Engines with OEM Alternators
Fits: Alternator with a Shaft Diameter of 15mm
Material: Aluminum alloy, precision machined.
Weight: 5 oz
Finish: Natural/Machined
If you've removed your air pump, running an extra belt on the water pump is a good idea to make sure your Rotary runs like a champ.