125mm GT3 Crankshaft Pulley- 3.6 Air Cooled Case
The 125mm racing pulley is for high RPM 3.6, 3.8, 3.9 & 4.0 engines utilizing the GT3 crankshaft with single belt conversion, requires a 740mm belt.
Requires (RS-079) single belt conversion hub.
We also recommend Rothsport (RS-164) billet fan pulley for full appearance upgrade.