Pulleys and Mandrels
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| Single Groove Pulley
| Two Groove BBF Pulley |
| Product images may differ from actual product appearance. |
Fixed Crank Pulleys 6061 T6 billet aluminum fixed pulley with either one or two grooves for V belts. 2” diameter hub, which allows for crank triggers with an opening of more than 2” without machining. 2 Groove Pulley only available for BBF.
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| Fixed Crank Pulley |
| CP100A | Small Block Chevy, Single Groove (single bolt style) | $65.00 |
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| CP101A | Big Block Chevy, Single Groove (single bolt style) | $65.00 |
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| CP103A | Fixed Crank Pulley, Single Groove, Small Block Ford | $65.00 |
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| CP104 |
Fixed Crank Pulley, Two Groove, Big Block Ford | $75.00 |
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| CP105A | Fixed Crank Pulley, Single Groove, Buick | $70.00 |
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| CP106A | Fixed Crank Pulley, Single Groove, Pontiac
Photo | $75.00 |
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| CP107A | Fixed Crank Pulley, Single Groove, Mopar (big and small block) | $75.00 |
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| CP108A | Fixed Crank Pulley, Single Groove, Big Block Oldsmobile | $95.00 |
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| Single Groove Pulley bolts to balancer |
| Product images may differ from actual product appearance. |
Crank Alternator Pulleys
6061 T6 billet aluminum fixed pulley with one groove for V belt. 5" diameter to drive alternator. Center hole accepts 2" OD crank mandrel or 2" OD CP Series Vacuum Pump Pulley through the center. The 4 bolt pattern is for bolting to back face of single groove pulley to utilize GZMS alternator kit. It also can bolt to face of balancer using the 3 bolt pattern to accomodate other alternator brackets.
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| Fixed Crank Pulley |
| CP99A |
Chevy and GZMS bolt pattern, Single Groove, bolts to balancer style for Alternator, 5" diameter. |
$45.00 |
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Crank Mandrel, Chevy
1” mandrel made from 6061 T6 aluminum with a 1/8” keyway and key. Allows for installation of a crank trigger and multiple pulleys. With 4" spacer & end cap.
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Small Block Chevy Shown on right, Big Block Chevy on left, Spacer shown in the middle. |
| Crank Mandrel, Chevy |
| PN |
Description |
Price |
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| CM200 |
Crank Mandrel, Small Block Chevy, w/spacer and end cap |
$77.00 |
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| CM201 |
Crank Mandrel, Big Block Chevy, w/spacer and end cap |
$87.00 |
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Crank Mandrel Pulleys
All mandrel pulleys are made of 6061-T6 machined aluminum, are single groove V belt, are provided with a 1/8" keyway and have 2-1/4" set screws to fix location on the mandrel.
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Product images may differ from actual product appearance. |
| Crank Mandrel Pulleys |
| PN |
Description |
Price |
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| CMP299 |
3" Dia Crank Mandrel Pulley, 1" Mandrel Shaft, 1/8 Keyway |
$35.00 |
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| CMP300 |
3 1/2" Dia Crank Mandrel Pulley, 1" Mandrel Shaft, 1/8 Keyway |
$35.00 |
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| CMP301 |
4 1/2" Dia Crank Mandrel Pulley, 1" Mandrel Shaft, 1/8 Keyway |
$45.00 |
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V-Belt Vacuum Pump Pulleys
6061 T6 machined aluminum for a single V belt and will work on GZMS, OEM air pumps and Moroso Vacuum pumps with 6mm coarse threaded bolts. |
Product images may differ from actual product appearance. |
| Vacuum Pump Pulley |
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VPP401
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4 1/2" Vacuum Pump Pulley |
$50.00
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VPP402
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5 1/2" Vacuum Pump Pulley |
$56.00
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| VPP404 |
6 1/2" Vacuum Pump Pulley |
$61.00 |
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Serpentine Belt Style Vacuum Pump Pulleys
7.5" 6061 T6 machined aluminum for a Serpentine belt and will work on GZMS, OEM air pumps, Moroso and Aerospace pumps with 6mm coarse threaded bolts. |
Product images may differ from actual product appearance. |
| Vacuum Pump Pulley |
| PN |
Description |
Price |
Qty |
| VPP403 |
7.5" 6 groove Serpentine Vacuum Pump Pulley |
$140.00 |
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Gilmer Belt Vacuum Pump Pulleys |
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| Vacuum Pump Pulley |
| PN | Description | Price | |
| VPPG401 |  36 tooth Gilmer pulley for vacuum pumps. Fits GZMS, OEM air pumps, Moroso and Aerospace pumps with 6mm coarse threaded bolts. For use with a 28 tooth Mandrell Pulley on most applications. | $63.00 | |
| VPPG402 |  46 tooth Gilmer 5.4" diameter pulley for vacuum pumps. Fits GZMS, OEM air pumps, Moroso and Aerospace pumps with 6mm coarse threaded bolts. For use with a 28 tooth Mandrell Pulley on most applications. | $68.00 | |
Specialty Gilmer/Serpentine Belt Vacuum Pump Pulley | 
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| Vacuum Pump Pulley |
| PN | Description | Price | |
| TP100 | Specialty Gilmer/Serpentine combination pulley for use with LSX engines in a Corvette with our Sportsman and Pro Vacuum Pumps. | $69.00 | |
Gilmer Belt Crank Pulleys 28 tooth Gilmer crank pulley for 1" diameter crank mandrels with 1/8" keyway. For use with 1/2" wide Gilmer Belt and is the correct pulley to use with our VPPC402 (46 cog) for 64% of engine speed at the vacuum pump. | 
Product images may differ from actual product appearance. |
| Vacuum Pump Pulley |
| PN | Description | Price | |
| CMPC300 | 1/2" wide, 28 Tooth Gilmer Drive Crank Pulley for 1" mandrel, 1/8" keyway | $45.00 | |
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