Water Pump Shaft/Gear, MC28.
High quality hard anodized aluminium gear, on precision ground shaft.
Manufactured by T2 Racing in Japan.
Direct replacement for the standard plastic shaft/gear which is prone to cracking and causing catastrophic failure.
The shaft and gear can be disassembled should any parts ever need replacing.
Note that this part is for MC28 only, for MC18/221 please see TPER-5003