One Wire Alternators

One wire alternators are a popular choice for building hot rods or project vehicles. Ease of installation, wide availability, and reduced cost are just a few of the...

One wire alternators are a popular choice for building hot rods or project vehicles. Ease of installation, wide availability, and reduced cost are just a few of the reasons builders love single wire alternators.

One wire alternators work by only utilizing a single wire connected directly to the positive post on the battery. The “ground” is achieved through the alternator’s physical connection to the engine block, and therefore requires a high-quality ground strap between the engine block and vehicle chassis. However, because there is only 1 wire to install, it is much easier to route and access that wire during installation...

As long as you select an alternator that produces enough amperage to meet the demands of your vehicle’s electrical system, a one-wire alternator should be capable of providing years of service. But in the event that one should fail, because single wire alternators are simple, troubleshooting and down time are kept to a minimum.

Although they are commonly referred to as GM one wire alternators, there are options available for Mopar and Ford, as well. Summit Racing Equipment offers a wide variety of one wire alternators from trusted brands: no copycats, knockoffs, or third-party sellers here! Use the powerful Make/Model search tool to find the one wire alternator that’s perfect for your ride or project.

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Summit Racing™ 100 Amp Alternator for Ford L4, L6, V6, V8 SUM-810308

Alternator, Internal Regulator, 100 Amp, One Wire, V-Belt Pulley, Natural, Ford, L4/L6/V6/V8, Each

Part Number: SUM-810308

4.57 out of 5 stars ( 134 )

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Summit Racing™ 140 Amp Alternator for Ford, Lincoln, Mercury SUM-810300

Alternator, Internal Regulator, 140 Amp, Natural Finish, Ford, Lincoln, Mercury, Each

Part Number: SUM-810300

4.25 out of 5 stars ( 92 )

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Powermaster High-Amp Alternators 48237

Powermaster High-Amp Alternators 48237

Alternator, IGM AD244, Internal Regulator, 220 Amp, Natural, Cadillac, Chevy, GMC, Pontiac, Each

Part Number: PWM-48237

4.93 out of 5 stars ( 30 )

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Top Street Performance Alternators ES1026C

ALTERNATOR - GM CS130, 220 AMP, 1 WIRE, SIDE BATTERY PORT, 6.61 INCH MOUNTING SIZE, SERPENTINE, CHROME

Part Number: TSN-ES1026C

4.0 out of 5 stars ( 4 )

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Summit Racing™ Chrome Alternators SUM-G1667A

Alternator, Internal Regulator, 100 Amp, 1-Wire, Chrome Plated, GM, Each

Part Number: SUM-G1667A

4.48 out of 5 stars ( 96 )

Estimated Ship Date: Tomorrow

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Top Street Performance Alternators ES1022C

Alternator, GM CS130, Internal Regulator, 220 Amp, Chrome, V-Belt, GM, Each

Part Number: TSN-ES1022C

4.75 out of 5 stars ( 4 )

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Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 48969

Alternator, High-Amp, 220 Amps, Natural, Chevy, Each

Part Number: PWM-48969

4.69 out of 5 stars ( 16 )

Estimated Ship Date: Tomorrow

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Powermaster Street Alternators 8-37141

Alternator, Internal Regulator, 150 Amp, V-Belt Pulley, Chrome Plated, Ford, Lincoln, Mercury, Each

Part Number: PWM-8-37141

4.71 out of 5 stars ( 21 )

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Powermaster HPR Small Frame Series Alternators 847295-1

Alternator 10DN,10Si, 12si, CS130, 180A, 145+@ Idle, 1V Pulley, 1-Wire, Each

Part Number: PWM-847295-1

Not Yet Reviewed

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Powermaster High-Amp Alternators 58237

Alternator, High-Amp, GM AD244 Case, 220 amps, 12 V, Serpentine Pulley, Offset Mount, Black Powdercoat, Internal Regulator, Chevrolet, GMC, Each

Part Number: PWM-58237

4.2 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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Powermaster Street Alternators 577591

Alternator, Street, 12 V, 200 amps, Black Powdercoated, Ford, Jeep, Lincoln, Mercury, Each

Part Number: PWM-577591

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Top Street Performance Alternators ES1006C

Alternator, GM CS130, Internal Regulator, 160 Amp, Chrome, Straight Clocking, Buick, Chevy, GMC, Each

Part Number: TSN-ES1006C

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Powermaster Smooth Look Alternators 57297

Alternator, Smooth Look, Delco 12 SI Case, 150 amps, 12 V, V-Belt Pulley, Black Powdercoated, Internal Regulator, Each

Part Number: PWM-57297

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Powermaster Street Alternators 47861

Alternator, Internal Regulator, 140 Amp, Natural, Left Offset, Chevy, GMC, Pontiac, Each

Part Number: PWM-47861

4.24 out of 5 stars ( 82 )

Estimated Ship Date: Tomorrow

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Top Street Performance Alternators ES1006BK

Alternator, GM CS130, Internal Regulator, 160 Amp, Black, Buick, Chevy, GMC, Each

Part Number: TSN-ES1006BK

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Powermaster Street Alternators 47294

Alternator, Internal Regulator, 150 Amp, Natural, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each

Part Number: PWM-47294

4.63 out of 5 stars ( 60 )

Estimated Ship Date: Tomorrow

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Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 58969

Alternator, High-Amp, Delco AD244 Case, 220 amps, 12 V, Serpentine Pulley, Black Powdercoated, Internal Regulator, Chevy, Each

Part Number: PWM-58969

3.75 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Proform Alternators 66445.14N

Alternator, Chrome, Internal Regulator, V-Belt Pulley, 140 Amp, 1-Wire, GM, Each

Part Number: PRO-66445-14N

4.43 out of 5 stars ( 42 )

Estimated Ship Date: Tomorrow

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Powermaster Street Alternators 57861

Alternator, Internal Regulator, 140 Amp, Black, Left Offset, Buick, Chevy, GMC, Olds, Pontiac, Each

Part Number: PWM-57861

4.65 out of 5 stars ( 31 )

Estimated Ship Date: Tomorrow

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Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 70686G

Alternator, 100 Amp, One Wire, Serpentine, Natural, Ford, Mercury, Each

Part Number: TFF-70686G

4.64 out of 5 stars ( 47 )

Estimated Ship Date: Tomorrow

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Powermaster Race Alternators 8-47140

Alternator, Internal Regulator, 150 Amp, Natural, Ford, Mercury, Jeep, Each

Part Number: PWM-8-47140

4.91 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

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Powermaster Race Alternators 8173

Alternator, Race, 75 amp, 12 V, V-Belt, Natural Finish, Denso Case, Internal Regulator, Each

Part Number: PWM-8173

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Chrome Alternators SUM-810309

Alternator, Internal Regulator, 100 Amp, One Wire, V-Belt Pulley, Chrome, Ford, L4/L6/V6/V8, Each

Part Number: SUM-810309

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Powermaster Street Alternators 8-58529

Alternator, 165 Amp, Black Powdercoated, 2-Groove V-Belt Pulley, Chrysler, Dodge, Plymouth, Each

Part Number: PWM-8-58529

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Summit Racing™ 140 Amp Alternator for Ford, Lincoln, Mercury SUM-810301

Alternator, Internal Regulator, 140 Amp, Natural Finish, Ford, Lincoln, Mercury, Each

Part Number: SUM-810301

4.54 out of 5 stars ( 35 )

Estimated Ship Date: Tomorrow

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