Here is a used 41 tooth, 14MMGT hard anodized blower pulley 3.5" width. This has GT tooth profile (for flat tooth tip belts), must run with 14mm GT belts.
14mmGT 38 tooth Supercharger Blower Pulley drag boat dragster
14mmGT 37 tooth Supercharger Blower Pulley drag boat dragster
14mmGT 31 tooth Supercharger Blower Pulley drag boat dragster
RCD 14mmGT 40 tooth Supercharger Pulley drag boat dragster
14mmGT 28 tooth 3/4" offset Supercharger Pulley drag boat dragster
SBT 20 Tooth Supercharger Rebuild Kit 420893564 Sea-Doo 300 2016-24