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- Alternators
- March Performance Ultra Series Alternators
High Output and Polished Style
March Performance Ultra Series Alternators are engineered to provide superior electrical output for modern and high-demand applications while maintaining a sleek, polished appearance. Built from premium materials with precision manufacturing, these alternators ensure reliable performance, reduced weight, and long-lasting durability. Perfect for street rods, muscle cars, and custom projects, March Performance Ultra Series Alternators deliver consistent power with show-quality style under the hood.
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GM
March Performance P2525-04
March Performance P2525-04 Ultra Series Alternator, 140 Amp, 12v Single Wire, Cast Finish, GM CS130, Left Offset, Driver Side
Ultra Series Alternator140 Amp 12v Single Wire Cast Finish GM CS130 Left Offset Driver Side (6 & 10 o'clock) Mount
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$195.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
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March Performance P2525-05
March Performance P2525-05 Ultra Series Alternator, 140 Amp, 12v Single Wire, Polished Finish, GM CS130, Left Offset, Driver Side
Ultra Series Alternator140 Amp 12v Single Wire Polished Finish GM CS130 Left Offset Driver Side (6 & 10 o'clock) Mount
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$259.95
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March Performance P2525-06
March Performance P2525-06 Ultra Series Alternator, 140 Amp, 12v Single Wire, Chrome Finish, GM CS130, Left Offset, Driver Side
Ultra Series Alternator140 Amp 12v Single Wire Chrome Finish GM CS130 Left Offset Driver Side (6 & 10 o'clock) Mount
View Details
$194.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
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March Performance P2525-08
March Performance P2525-08 Ultra Series Alternator, 140 Amp, 12v Single Wire, Black Finish, GM CS130, Left Offset, Driver Side
Ultra Series Alternator140 Amp 12v Single Wire Black Finish GM CS130 Left Offset Driver Side (6 & 10 o'clock) Mount
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$189.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
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March Performance P2555-05
March Performance P2555-05 Ultra Series Alternator, 100 Amp, 12v Single Wire, Polished Finish, GM 10SI,, 6.6 in. Center to Center
Ultra Series Alternator100 Amp 12v Single Wire Polished Finish GM 10SI 6 & 12 o'clock Mount 6.6 in. Center to Center
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$129.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
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March Performance P2555-06
March Performance P2555-06 Ultra Series Alternator, 100 Amp, 12v Single Wire, Chrome Finish, GM 10SI,, 6.6 in. Center to Center
Ultra Series Alternator100 Amp 12v Single Wire Chrome Finish GM 10SI 6 & 12 o'clock Mount 6.6 in. Center to Center
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$119.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
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March Performance P2555-08
March Performance P2555-08 Ultra Series Alternator, 100 Amp, 12v Single Wire, Black Finish, GM 10SI,, 6.6 in. Center to Centert
Ultra Series Alternator100 Amp 12v Single Wire Black Finish GM 10SI 6 & 12 o'clock Mount 6.6 in. Center to Centert
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$119.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2556-05
March Performance P2556-05 Ultra Series Alternator, 140 Amp, 12v Single Wire, Polished Finish, GM 10SI,, 6.6 in. Center to Center
Ultra Series Alternator140 Amp 12v Single Wire Polished Finish GM 10SI 6 & 12 o'clock Mount 6.6 in. Center to Center
View Details
$149.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2556-06
March Performance P2556-06 Ultra Series Alternator, 140 Amp, 12v Single Wire, Chrome Finish, GM 10SI,, 6.6 in. Center to Center
Ultra Series Alternator140 Amp 12v Single Wire Chrome Finish GM 10SI 6 & 12 o'clock Mount 6.6 in. Center to Center
View Details
$139.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2556-08
March Performance P2556-08 Ultra Series Alternator, 140 Amp, 12v Single Wire, Black Finish, GM 10SI,, 6.6 in. Center to Center
Ultra Series Alternator140 Amp 12v Single Wire Black Finish GM 10SI 6 & 12 o'clock Mount 6.6 in. Center to Center
View Details
$139.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
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Ford
March Performance P2562-05
March Performance P2562-05 Ultra Series Alternator, 100 Amp, 12v Single Wire, Polished Finish, Ford 1G, Mercury, American Motors
Ultra Series Alternator100 Amp 12v Single Wire Polished Finish Ford 1G Mercury American Motors 6 & 12 o'clock Mount
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$169.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2562-06
March Performance P2562-06 Ultra Series Alternator, 100 Amp, 12v Single Wire, Chrome Finish, Ford 1G, Mercury, American Motors
Ultra Series Alternator100 Amp 12v Single Wire Chrome Finish Ford 1G Mercury American Motors 6 & 12 o'clock Mount
View Details
$149.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2562-08
March Performance P2562-08 Ultra Series Alternator, 100 Amp, 12v Single Wire, Black Finish, Ford 1G, Mercury, American Motors
Ultra Series Alternator100 Amp 12v Single Wire Black Finish Ford 1G Mercury American Motors 6 & 12 o'clock Mount
View Details
$134.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2563-05
March Performance P2563-05 Ultra Series Alternator, 140 Amp, 12v Single Wire, Polished Finish, Ford 1G, Mercury, American Motors
Ultra Series Alternator140 Amp 12v Single Wire Polished Finish Ford 1G Mercury American Motors 6 & 12 o'clock Mount
View Details
$205.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
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March Performance P2563-06
March Performance P2563-06 Ultra Series Alternator, 140 Amp, 12v Single Wire, Chrome Finish, Ford 1G, Mercury, American Motors
Ultra Series Alternator140 Amp 12v Single Wire Chrome Finish Ford 1G Mercury American Motors 6 & 12 o'clock Mount
View Details
$198.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2563-08
March Performance P2563-08 Ultra Series Alternator, 140 Amp, 12v Single Wire, Black Finish, Ford 1G, Mercury, American Motors
Ultra Series Alternator140 Amp 12v Single Wire Black Finish Ford 1G Mercury American Motors 6 & 12 o'clock Mount
View Details
$164.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
GM
March Performance P2568-04
March Performance P2568-04 Ultra Series Alternator, 140 Amp, 12v Single Wire, Cast Finish, GM CS130, Right Offset, Passenger Side
Ultra Series Alternator140 Amp 12v Single Wire Cast Finish GM CS130 Right Offset Passenger Side (6 & 2 o'clock) Mount
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$209.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee
March Performance P2568-05
March Performance P2568-05 Ultra Series Alternator, 140 Amp, 12v Single Wire, Polished Finish, GM CS130, Right Offset, Passenger Side
Ultra Series Alternator140 Amp 12v Single Wire Polished Finish GM CS130 Right Offset Passenger Side (6 & 2 o'clock) Mount
View Details
$249.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee
March Performance P2568-06
March Performance P2568-06 Ultra Series Alternator, 140 Amp, 12v Single Wire, Chrome Finish, GM CS130, Right Offset, Passenger Side
Ultra Series Alternator140 Amp 12v Single Wire Chrome Finish GM CS130 Right Offset Passenger Side (6 & 2 o'clock) Mount
View Details
$198.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2568-08
March Performance P2568-08 Ultra Series Alternator, 140 Amp, 12v Single Wire, Black Finish, GM CS130, Right Offset, Passenger Side
Ultra Series Alternator140 Amp 12v Single Wire Black Finish GM CS130 Right Offset Passenger Side (6 & 2 o'clock) Mount
View Details
$187.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2572-04
March Performance P2572-04 Ultra Series Alternator, 140 Amp, 12v Single Wire, Cast Finish, GM CS130, Center Offset
Ultra Series Alternator140 Amp 12v Single Wire Cast Finish GM CS130 Center Offset 6 & 2 o'clock Mount 6.125 in. Center to Center
View Details
$209.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee
March Performance P2572-05
March Performance P2572-05 Ultra Series Alternator, 140 Amp, 12v Single Wire, Polished Finish, GM CS130, Center Offset
Ultra Series Alternator140 Amp 12v Single Wire Polished Finish GM CS130 Center Offset 6 & 2 o'clock Mount 6.125 in. Center to Center
View Details
$239.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee
March Performance P2572-06
March Performance P2572-06 Ultra Series Alternator, 140 Amp, 12v Single Wire, Chrome Finish, GM CS130, Center Offset
Ultra Series Alternator140 Amp 12v Single Wire Chrome Finish GM CS130 Center Offset 6 & 2 o'clock Mount 6.125 in. Center to Center
View Details
$198.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee
March Performance P2572-08
March Performance P2572-08 Ultra Series Alternator, 140 Amp, 12v Single Wire, Black Finish, GM CS130, Center Offset
Ultra Series Alternator140 Amp 12v Single Wire Black Finish GM CS130 Center Offset 6 & 2 o'clock Mount 6.125 in. Center to Center
View Details
$189.95
Estimated to ship direct from manufacturer on 07/29/26, pending manufacturer availability.
Lowest Price Guarantee