Vacuum Pump Pulley
Idler Pulley for Vacuum Pump

Serpentine Idler Pulley with Gilmer Vacuum Pump Pulley

Works With T100 Idler Bracket for LSX Engines
Part # TP100B
In stock - Usually ships in 1-2 Business Days
$120.00 ea
Features: 14 Tooth Gilmer Pulley for driving Vacuum Pump via 10 Rib Idler Pulley. For use with LSX engines with the GZ Motorsports Sportsman and Pro Vacuum Pumps.

Drive your Vacuum Pump from your 10 Rib Performance Serpentine Belt

This 6061 T6 Aluminum Gilmer Belt Drive Pulley are designed for a 1/2 Wide Gilmer Belt to drive a Vacuum Pump fitted with a Gilmer Pulley. This Pulley is designed for use with our T100 Bracket which is a manual adjustment bracket, it also will work with the stock spring loaded mount.

Works on all LSX motors such as the Y Body Corvette, Gen 4 F Body Camaro, Pontiac GTO & G8, C & K Body LS Trucks, CTS-V Cadillac and Z Body Gen 5 2010 & Up Camaros.


All Gilmer Pump Pulleys are designed to be used with a 1/2" belt.

  • 6061 T6 Aluminum
  • Mounts on T100 Bracket
  • 14 Tooth is Gilmer Pulley

Pulley Ratio & RPM Calculator

GZ Motorsports Vacuum Pumps should avoid shaft RPM's in excess of 6000 RPM Pump Speed (not engine speed). The Formula used is Vacuum Pump RPM = Engine RPM x Crank Pulley Teeth/Vacuum Pump Pulley Teeth

Enter Engine RPM:  
Crank Pulley Teeth:  

Vacuum Pump Pulley Teeth  
Pulley Ratio %:  
Vacuum Pump Shaft RPM: