$111 Off
$111 Off
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#2558721
Powermaster 8-721 CS121 Pro Series 100 Amp Kit, 1V Pulley
$444.99
/each
Factory Shipped
$556.25
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Key Specs
| MFG. Part # | 8-721 |
| One Wire Alternator | Yes |
| Alternator Amperage | 100 amp |
| Alternator Finish | Powder Coated |
| Pulley Style | V-belt |
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Powermaster 8-721 Details
This kit mounts the alternator to the passenger side cylinder head area and drives off the front of the water pump with a 1V belt pulley system. This setup does not interfere with other belt drive systems already in use. The alternator produces 60 amps at low RPMs and 100 amps at racing speed.
- Powermaster 8-721
- CS121 Pro Series 100 Amp Kit for Circle Track
- 1V pulley included
- 60A at idle, 100A top end
- True 1-wire hookup
- Black finish
- Includes:
- 3:00 position alternator - 8072-3
- Water pump pulley - 174
- Alternator pulley - 181
- Bracket - 722
- Gates Belt - 7240
Charts
Wiring Instructions (PDF)
Guides & Documents
Warranty Information
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Warranty Information
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Do not send the unit back to Speedway Motors unless you have called Powermaster and talked to their Tech Department while the unit was still on the vehicle so they could help you troubleshoot the problem.
Powermaster 8-721 Specifications
Powermaster 8-721 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 8-721 |
| Brand | Powermaster |
| One Wire Alternator | Yes |
| Alternator Amperage | 100 amp |
| Alternator Finish | Powder Coated |
| Pulley Style | V-belt |
| GENERAL | |
| Alternator Case Style | GM CS121 |
| Voltage Required | 12-Volt |
| Regulator | Internal |
| Regulator Included | Yes |
| Alternator Pulley Included | Yes |
| Alternator Pulley Grooves | 1 V-groove |
| Alternator Brackets Included | Yes |
| Color | Black |
| Sold in Quantity | Each |
| Notes | Made in the USA |
| GTIN Code | 692209022602 |
| Belt Included | Yes |
| Coating Type | Powdercoated |
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