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Maxfab Fabrication & Supply Co.

Mazda 12A/13B Twin V-Belt Alternator Pulley

Mazda 12A/13B Twin V-Belt Alternator Pulley

Regular price $69.00 NZD
Regular price Sale price $69.00 NZD
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This is a replacement alternator pulley to suit early 12A and 13B rotaries through to series 5 RX-7 (vehicles with 15mm alternator shaft). It allows a second v-belt to be added for improved reliability, particularly on high-revving engines. Two alternator belts of the same size as original are required. Note - does not change the drive ratio of the alternator


  • Eliminates belt slip on the alternator/water pump/cooling fan pulley's 
  • Shares the load between two belts 
  • Back up belt if one belt fails 

Available in Red, Blue & Silver 

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