Home :: Shop by Brand :: PowerMaster Performance

PowerMaster Performance

Powermaster early style Delco alternators will work either way - as a one wire or OEM style. The main difference between a one wire and an OEM is the method used to energize or turn on the alternator. An alternator using the OEM style is turned on with the ignition switch. The one wire design is energized with a special sensing cicuit built into the internal voltage regulator. This circuit senses the rotation of the alternators rotor. The rotor must turn at sufficient speed to trip the circuit, starting the charging process. This turn-on speed is affected by several things and is typically higher with certain high amperage alternators. Once this circuit is tripped, the alternator will charge at all speeds, even very low ones, until the alternators rotor comes to a complete stop. At that point, the circuit will shut off and wait for the process to be repeated. What this means for the consumer is that in some applications the engine must be revved to 1200 or 1400 RPMs to turn the one wire alternator on. If the wiring harness is available and this characteristic is annoying, then Powermaster alternators can be plugged in like the stock unit and operated with the ignition switch.

Products

Alt GM 10DN 70A 12V Chrome
SKU: 17102
PowerGen GM Chrome 1V Pulley Ext Reg
Our price: $143.95
 
(0 reviews)  
Qty
Alt GM 10DN 70A 12V Natural
SKU: 7102
PowerGen GM Natural 1V Pulley Ext Reg
Our price: $123.95
 
(0 reviews)  
Qty
Alt GM 12si 150A 12V Chrome
SKU: 37293
PowerGEN GM Chrome 1V Pulley 1 or 3 wires
Our price: $181.95
 
(0 reviews)  
Qty
Alt GM 12si 150A 12V Natural
SKU: 47294
PowerGen GM Natural 1V Pulley &
Our price: $159.95
 
(0 reviews)  
Qty
Alt GM 12Si Chrome 100A.
SKU: 17294
Alt GM 12Si Chrome 100A 1V Pulley 1 or 3 Wire. Fits 1964 - 1989. Iddle-70A / Cruise-90A / Top End-100A
Our price: $141.90
 
(0 reviews)  
Qty
Alternator 12si 100Amp Satin
SKU: 17294-100
12SI, Satin finish 100amp GM style alternator.
-Excellent idle amperage
-1 or 3 wire operation
-Straight mount 6.61"
-MADE IN THE USA
-1 year warranty

Projected idel performance
Idle - 70 amp
Cruise - 90 amp
Top End - 100 amp
Our price: $196.00
 
(0 reviews)  
Qty
Alternator 12si 150Amp Satin
SKU: 37295-360
12SI, Satin finish 150amp GM style alternator.
-Excellent idle amperage
-1 or 3 wire operation
-Straight mount 6.61"
-MADE IN THE USA
-1 year warranty

Projected idel performance
Idle - 90 amp
Cruise - 125 amp
Top End - 150 amp
Our price: $259.00
 
(0 reviews)  
Qty
Alternator 12si Black 150Amp
SKU: 57293
Alternator 12si Black 150Amp
Our price: $174.95
 
(0 reviews)  
Qty
Alternator Chrome 105Amp CS130
SKU: 17861
Alternator Chrome 105Amp CS130
Our price: $199.95
 
(0 reviews)  
Qty
Alternator Natural 105Amp CS130
SKU: 7861
Alternator Natural 105Amp CS130
Our price: $149.95
 
(0 reviews)  
Qty