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1972-89 Serpentine belt conversion w/crank trigger-Underdrive 1974-89, 36-1 trigger wheel

Our serpentine belt conversion is the cure for broken, stretched  and tossed fan belts on the early Porsche 911 engines. This kit includes: crank pulley, 36-1 trigger wheel, fan pulley, belt tensioner, belt, sensor mount and distributor hole plug. 

Note: This kit is an underdrive for years 1974-89. Stock ratio not available for 1974-83. See Item # 9110-06 for 1984-89 Stock ratio.

We recommend using- Crank pulley bolt #1107-10

* Sensor mount is for 1/2" crank sensor item # 72250 or Hall sensor # 75000

* Crank sensor is not included in this kit. Please see our 1/2" OD sensor options here: https://www.clewett.com/index.php?main_page=index&cPath=5_29

Starting at: $759.00

Please Choose:

Add a Crank Sensor to this kit (necessary to use the crank trigger kit if you do not already have your own sensor)

A generic image
1/2" Hall Effect Crank Sensor P/N 7002-05 (+$165)
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1/2" Magnetic Crank Sensor P/N 7002-01 (+$115)

Starting at: $759.00

Add to Cart:
  • Model: 9115-05
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