The Texas Association of Emergency Vehicle
Technicians
©2010 Texas Association of
Emergency Vehicle Technicians
Contact Us
Example:
Using The Chart Below Determine The Pulley Ratio
7.25” Crankshaft Pulley
2.40” Alternator Pulley
3.02 Pulley Ratio
1,500 (eng rpm) x 3.02 = 4,530 (alt rpm)
*Note: This Chart Can Be Used For Any Belt Driven Accessory