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The Following brands are available based on your search.

  • Holley
    Holley
  • MSD
    MSD
  • Mr Gasket
    Mr Gasket
  • Powermaster
    Powermaster
  • Proform
    Proform
  • Tuff Stuff Performance Accessories
    Tuff Stuff Performance Accessories

Best Selling Genuine Mg Alternators

  • We Stock the following top leading brands, including Powermaster, MSD, Proform, Tuff Stuff Performance Accessories
  • Constantly Updated Inventory of Mg Replacement Alternator Parts

We stock Alternator parts for most Mg models, including .


Powermaster
Alternator Powermaster

P311-4DB9454    8172  New

Qty:
In Stock & Ready to Ship
$228.50
Powermaster Alternator
  • Racing Alternator
  • Racing Alternator; 93mm; Denso Style; 55 Amp; 30 Idle; 12V; One Wire; w/Pulley; Natural;
  • Product Attributes:
    • Amperage: 55 Amp
  • Features:
    • Our Smallest And Lightest Alternator
    • 55 Plus Amps At Top End/30 Plus Amps At Idle
    • Easy To Install 1-Wire Internally Regulated
    • Individually Dyno Tested with Proof of Performance Guarantee
    • Great For Low Amperage Requirement Applications
    • Denso Style Race Prepped
    • Fits the Most Popular 12/6/5.4 in. Racing Brackets
  • True one wire hookup. Proof of performance tag.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Powermaster
Additional Fitment Information:
Vehicle
Powermaster
Alternator Powermaster

P311-46916AB    8-882  New

Qty:
In Stock & Ready to Ship
$407.88
Powermaster Alternator
  • Pro Series Alternator Kit
  • Pro Series Alternator Kit; CS121; Snug Mount; 100 Amp; Includes Alternator PN[8072]/Alternator Pulley [181]/Crank Pulley [295]/Bracket [882]/Belt [7312]; For Drag Racing Use Only;
  • Product Attributes:
    • Amperage: 100 Amp
  • Features:
    • Fits Big Block Chevy
    • 100 Plus Amps At Top End/60 Plus Amps At Idle
    • Machined From Billet Aluminum For Light Weight And Durability
    • Hardcoat Anodized Pulleys For Durability
    • Low Mount On Either Side Of The Engine
    • Bracket Pre-assembled For Your Convenience
  • Easy to install. Solves low voltage problems.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Powermaster
Additional Fitment Information:
Vehicle
Powermaster
Alternator Powermaster

P311-02AEF30    8-800  New

Qty:
In Stock & Ready to Ship
$438.31
Powermaster Alternator
  • Pro Series Alternator Kit
  • Pro Series Alternator Kit; High Mount; 55 Amp; Includes Alternator PN[8162]/Alternator 1V Pulley[180]/Bracket[801]/Gates Belt[7240]; Pass. Side Mount; For Use w/Circle Track Racing;
  • Product Attributes:
    • Amperage: 55 Amp
  • Features:
    • Fits Small Block Chevy On Passenger Side
    • 55 Plus Amps At Top End/30 Plus Amps At Idle
    • Machined From Billet Aluminum For Light Weight And Durability
    • Hardcoat Anodized Pulleys For Durability
    • Attaches Via Two Bolts Attaching The Water Pump
    • No Interference With Existing Setup In Most Cases
    • Bracket Pre-assembled For Your Convenience
  • Easy to install. Solves low voltage problems.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Powermaster
Additional Fitment Information:
Vehicle
Powermaster
Alternator Powermaster

P311-4E4A4A1    8142  New

Qty:
In Stock & Ready to Ship
$433.12
Powermaster Alternator
  • Racing Alternator
  • Racing Alternator; 118mm; Denso Style; 150 Amp; 60 Idle; 12 Volt; w/o Pulley; Black;
  • Product Attributes:
    • Amperage: 150 Amp
  • Features:
    • 118mm Denso Style Race Prepped
    • 150 Plus Amps At Top End/60 Plus Amps At Idle
    • Easy To Install 1-Wire Internally Regulated
    • Individually Dyno Tested with Proof of Performance Guarantee
    • Great Upgrade To Replace Lower Amp Units
    • Fits Straight Mount 12/6/6.42 in. Brackets
  • True one wire hookup. Proof of performance tag.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Powermaster
Additional Fitment Information:
Vehicle
Powermaster
Alternator Powermaster

P311-3CD7BC7    8-400  New

Qty:
In Stock & Ready to Ship
$421.35
Powermaster Alternator
  • Pro Series Alternator Kit
  • Pro Series Alternator Kit; Quick Change; Passenger Side Mount; Includes Alternator 1V PN[8162]; Alternator Pulley PN[181]; Bracket PN[400]; Winters And Richmond Rear Ends;
  • Product Attributes:
    • Amperage: Oem
  • Features:
    • Popular With Asphalt Racers To Solve Low Voltage Problems
    • 55 Plus Amps At Top End/30 Plus Amps At Idle
    • Machined From Billet Aluminum For Light Weight And Durability
    • Hardcoat Anodized Pulleys For Durability
    • Mounts On Either Side Of Center Section
    • Fits Winters And Richmond Rear Ends
    • Bracket Pre-assembled For Your Convenience
  • Easy to install. Solves low voltage problems.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Powermaster
Additional Fitment Information:
Vehicle
MSD
Alternator MSD

P311-07C06FE    5362  New

Qty:
In Stock & Ready to Ship
$527.72
MSD Alternator
  • Dynaforce® Alternator
  • Dynaforce® Alternator; Straight Mount; 160 Amp; Chrome;
  • Product Attributes:
    • Amperage: 160 Amp
    • Peak Current: 160 Ma
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
  • Features:
    • Designed for maximum output from idle to high rpm
    • Stator and rotor electrically balanced for optimum performance
    • Dual plane bal. rotor delivers high rpm/precision/reliability
    • Hand assembled in the USA and NEVER rebuilt or refurbished units
    • Every Unit Is Delivered w/Proof Of Performance
    • One Wire Installation w/Added Fan Baffle For Belt Protection
  • Whether you need a high output alternator to power your muscle car, street rod or touring machine, MSD has you covered with the DynaForce Alternator. For the street, MSD offers a 120 or 160 amp one-wire alternator. Not only are they designed for extreme output at higher rpm, but MSD balances the current output to keep your electronic components up to speed during idle and lower rpm operation as well. Both the 120 and 160 Amp lternators feature one-wire installation to keep things clean, easy and effective. The charge post of the alternators is moved to the side of the housing to allow for improved clearance to the block, plus a pulley baffle is included to ensure there is never any fan-to-belt issues (common at high rpm on lesser alternators). The housings are available in four finishes including a natural cast for stock looks, a show quality chrome, black for subtle appearance and a great new satin finish for a smooth finish.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: MSD
Additional Fitment Information:
Vehicle
Proform
Alternator Proform

P311-3F349F6    440-471  New

Qty:
In Stock & Ready to Ship
$232.78
Proform Alternator
  • Natural Alternator; New; 1-Wire; 110 Amp
  • Alternator; 110 AMP; Chrysler/Mopar 1-Wire Style; V-Belt Pulley; Natural.
  • Product Attributes:
    • Amperage Output: 110 Amp
    • Prop 65 - Short Label: Warning: Cancer And Reproductive Harm
    • Prop 65 (C, R or CR): Cr
    • Prop 65 Warning Label: Prop65 Warning C And R.jpg
    • Voltage: 12 Volt
    • Wire Type: 1-wire
  • Time to update the technology in your vintage Chrysler/MOPAR muscle car. This 100% New alternator has everything you need: more amps (110), and 1-wire technology. When most alternators look the same on the outside, choose the one that can back it up on the inside, with an individual test result in each box.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Proform
Additional Fitment Information:
Vehicle
Proform
Alternator Proform

P311-1CFE71E    66445.1N  New

Qty:
In Stock & Ready to Ship
$155.08
  • Chrome Alternator; New; 1-Wire; 100 Amp
  • Alternator; 100 AMP; GM 1 Wire Style; Machined Pulley; Chrome Finish; 100% New.
  • Product Attributes:
    • Amperage Output: 100 Amp
    • Prop 65 - Short Label: Warning: Cancer And Reproductive Harm
    • Prop 65 (C, R or CR): Cr
    • Prop 65 Warning Chemical Listing: Chromium
    • Prop 65 Warning Label: Prop65 Warning C And R.jpg
    • Voltage: 12 Volt
    • Wire Type: 1-wire
  • Can you tell the difference? Most chrome alternators look nearly the same, and that's why what's on the inside is so critical. Reliability starts with how it's made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100% new for maximum longevity and optimum performance. After assembly each alternator is individually tested at the factory. Finally, it's boxed with a quality assurance graph that documents the specific unit's output performance. We do the testing, not you! And PROFORM proves it!

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Proform
Additional Fitment Information:
Vehicle
Proform
Alternator Proform

P311-053F857    66434  New

Qty:
In Stock & Ready to Ship
$139.15
Proform Alternator
  • Alternator; New 1-Wire; 100 Amp; Natural
  • Alternator-100 AMP; GM Style 1-Wire Style; Natural Finish; 100% New.
  • Product Attributes:
    • Amperage Output: 100 Amp
    • Wire Type: 1-wire
  • Can you tell the difference? Most alternators look nearly the same, and that's why what's on the inside is so critical. Reliability starts with how it's made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100% new for maximum longevity and optimum performance. After assembly each alternator is individually tested at the factory. Finally, it's boxed with a quality assurance graph that documents the specific unit's output performance. We do the testing, not you! And PROFORM proves it!

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Proform
Additional Fitment Information:
Vehicle
Proform
Alternator Proform

P311-2BC0636    440-473  New

Qty:
In Stock & Ready to Ship
$250.48
Proform Alternator
  • Black Alternator; New; 1-Wire; 110 Amp
  • Alternator; 110 AMP; Chrysler/Mopar 1-Wire Style; V-Belt Pulley; Black Crinkle.
  • Product Attributes:
    • Amperage Output: 110 Amp
    • Prop 65 - Short Label: Warning: Cancer And Reproductive Harm
    • Prop 65 (C, R or CR): Cr
    • Prop 65 Warning Label: Prop65 Warning C And R.jpg
    • Voltage: 12 Volt
    • Wire Type: 1-wire
  • Time to update the technology in your vintage Chrysler/MOPAR muscle car. This 100% New alternator has everything you need: more amps (110), and 1-wire technology. When most alternators look the same on the outside, choose the one that can back it up on the inside, with an individual test result in each box.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Proform
Additional Fitment Information:
Vehicle
Proform
Alternator Proform

P311-08624A1    66445N  New

Qty:
In Stock & Ready to Ship
$147.97
Proform Alternator
  • Chrome Alternator; New;GM 73-86;Int. Reg
  • Alternator; GM 73-86 with Internal Regulator; Machined Pulley; Chrome; 100% New.
  • Product Attributes:
    • Amperage Output: 70 Amp
    • Prop 65 - Short Label: Warning: Cancer And Reproductive Harm
    • Prop 65 (C, R or CR): Cr
    • Prop 65 Warning Chemical Listing: Chromium
    • Prop 65 Warning Label: Prop65 Warning C And R.jpg
    • Voltage: 12 Volt
    • Wire Type: 3-wire
  • Can you tell the difference? Most chrome alternators look nearly the same, and that's why what's on the inside is so critical. Reliability starts with how it's made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100% new for maximum longevity and optimum performance. After assembly each alternator is individually tested at the factory. Finally, it's boxed with a quality assurance graph that documents the specific unit's output performance. We do the testing, not you! And PROFORM proves it!

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Proform
Additional Fitment Information:
Vehicle
Proform
Alternator Proform

P311-3915E35    66445.8N  New

Qty:
In Stock & Ready to Ship
$158.25
  • Chrome Alternator; New; 1-Wire; 80 Amp
  • Alternator; 80 AMP; GM 1 Wire Style; Machined Pulley; Chrome Finish; 100% New.
  • Product Attributes:
    • Amperage Output: 80 Amp
    • Prop 65 - Short Label: Warning: Cancer And Reproductive Harm
    • Prop 65 (C, R or CR): Cr
    • Prop 65 Warning Chemical Listing: Chromium
    • Prop 65 Warning Label: Prop65 Warning C And R.jpg
    • Voltage: 12 Volt
    • Wire Type: 1-wire
  • Can you tell the difference? Most chrome alternators look nearly the same, and that's why what's on the inside is so critical. Reliability starts with how it's made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100% new for maximum longevity and optimum performance. After assembly each alternator is individually tested at the factory. Finally, it's boxed with a quality assurance graph that documents the specific unit's output performance. We do the testing, not you! And PROFORM proves it!

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Proform
Additional Fitment Information:
Vehicle
Proform
Alternator Proform

P311-48D5132    440-472  New

Qty:
In Stock & Ready to Ship
$250.48
Proform Alternator
  • Chrome Alternator; New; 1-Wire; 110 Amp
  • Alternator; 110 AMP; Chrysler/Mopar 1-Wire Style; V-Belt Pulley; Chrome.
  • Product Attributes:
    • Amperage Output: 110 Amp
    • Prop 65 - Short Label: Warning: Cancer And Reproductive Harm
    • Prop 65 (C, R or CR): Cr
    • Prop 65 Warning Label: Prop65 Warning C And R.jpg
    • Voltage: 12 Volt
    • Wire Type: 1-wire
  • Time to update the technology in your vintage Chrysler/MOPAR muscle car. This 100% New alternator has everything you need: more amps (110), and 1-wire technology. When most alternators look the same on the outside, choose the one that can back it up on the inside, with an individual test result in each box.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Proform
Additional Fitment Information:
Vehicle
Proform
Alternator Proform

P311-4CE4C16    141-656  New

Qty:
In Stock & Ready to Ship
$167.11
Proform Alternator
  • Chrome Alternator; New;GM 73-86;Int. Reg
  • Alternator; GM 73-86 with Internal Regulator; GM Bowtie Logo; Chrome; 100% New.
  • Product Attributes:
    • Amperage Output: 70 Amp
    • Prop 65 - Short Label: Warning: Cancer And Reproductive Harm
    • Prop 65 (C, R or CR): Cr
    • Prop 65 Warning Chemical Listing: Chromium
    • Prop 65 Warning Label: Prop65 Warning C And R.jpg
    • Wire Type: 3-wire
  • It is now possible to obtain four sought-after and popular features in one alternator! 100% NEW with absolutely no re-built components. Assured quality with generous, over-spec amperage, a machined pulley, and the popular Chevy Bowtie Emblem in red. Each unit is supplied with its own individual Quality Assurance graph documenting its operating performance. For a new level of functionality, insist on these 100% new Bowtie alternators.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Proform
Additional Fitment Information:
Vehicle
Proform
Alternator Proform

P311-502933C    66431  New

Qty:
In Stock & Ready to Ship
$169.46
  • 100% NEW, CHROME, 1-WIRE MINI ALTERNATOR, GM 50 AMP.
  • Mini Racing Alternator; 50+ AMP Model; Universal 1-Wire Style; Machined V-Belt Pulley; Chrome Finish; 6 lbs.; 96mm Dia Housing; 100% New; Sold Individually.
  • Product Attributes:
    • Amperage Output: 50 Amp
    • Case Style: Mini Nippondenso
    • Prop 65 - Short Label: Prop65 Warning C And R.jpg
    • Prop 65 (C, R or CR): Cr
  • Not looking to power a small village with your alternator, and drop 5 pounds from the front end at the same time? These small but powerful alternators are perfect for the racer looking for something reliable, and the cruiser looking for something small that looks good. Like all PROFORM alternators, these new mini alternators are 100% new, include a machined V-belt pulley, and lastly are tested at the component level and the finished level to insure the best product possible. Weighs 6 lbs.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Proform
Additional Fitment Information:
Vehicle
Powermaster
Alternator Powermaster

P311-2C7D433    8-780  New

Qty:
In Stock & Ready to Ship
$919.23
Powermaster Alternator
  • Pro Series Alternator Kit
  • Pro Series Alternator Kit; Fits w/Big Block Chevy w/1471 Blower; Includes Alternator PN [8142]/Alternator 6 Groove Pulley [186]/Blower Pulley [187]/Bracket [780]/Gates Belt [60345];
  • Product Attributes:
    • Amperage: 150 Amp
  • Features:
    • Fits Big Block Chevy W/1471 Blower
    • 150 Plus Amps At Top End/60 Plus Amps At Idle
    • Machined From Billet Aluminum For Light Weight And Durability
    • Hardcoat Anodized Pulleys For Durability
    • Used On Most Monster Trucks
    • Bracket Pre-assembled For Your Convenience
  • Easy to install. Solves low voltage problems.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Powermaster
Additional Fitment Information:
Vehicle
Powermaster
Alternator Powermaster

P311-44903D0    8163  New

Qty:
In Stock & Ready to Ship
$336.75
Powermaster Alternator
  • Racing Alternator
  • Racing Alternator; Denso; 100 mm; 75 Amp; 12 Volt; 5.2 in. Mount; 1 Wire; Black Finish;
  • Product Attributes:
    • Amperage: 100 Amp
  • Features:
    • Unique Design Only Available From Powermaster
    • 75 Plus Amps At Top End/35 Plus Amps At Idle
    • Easy To Install 1-Wire Internally Regulated
    • Individually Dyno Tested with Proof of Performance Guarantee
    • Great Replacement For The Smallest Denso Style Units
    • Denso Style Race Prepped
    • Fits the Most Popular 12/6/5.4 in. Racing Brackets
  • Denso Style Race Prepped Alternators are true one wire hookup, great output to weight ratios, and smallest/lightest design.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Powermaster
Additional Fitment Information:
Vehicle
Powermaster
Alternator Powermaster

P311-0B5E4A9    482478  New

Qty:
In Stock & Ready to Ship
$338.84
  • XS Volt™ Hi Amp Alternator
  • XS Volt™ Hi Amp Alternator; GM; 165 Amp; 6 Groove Pulley; Natural Finish;
  • Product Attributes:
    • Amperage: 165 Amp
  • Features:
    • XS Volt™ Hi Amp Alternator
  • Newly designed voltage regulator. Change voltage adjustment while running. Power saving mode, two operating levels. Indicator light drive. Entire circuit sealed in epoxy.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Powermaster
Additional Fitment Information:
Vehicle
Tuff Stuff Performance Accessories
Alternator Tuff Stuff Performance Accessories

P311-2CAF492    7068K  New

Qty:
In Stock & Ready to Ship
$172.10
Tuff Stuff Performance Accessories Alternator
  • Alternator
  • Alternator; 140 AMP; Smooth Back; 1 Wire; V Groove Pulley; Internal Regulator; Factory Cast PLUS+;
  • Product Attributes:
    • Amperage: 140 Amp
    • WARNING CA Proposition 65: Yes
    • WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm – Www.p65warnings.ca.gov
  • Features:
    • Heavy Duty Copper Wound Coils
    • Spike Resistant Diodes
    • Provides Charging At Low RPMs
    • Meets Or Exceeds OEM Specifications
    • 100% New Components
    • One Year Limited Warranty
    • Made In The U.S.A.
  • All Tuff Stuff alternators are hand built in Cleveland, Ohio and are tested to meet or exceed OEM specifications. All Tuff Stuff alternators are made from 100% new components and carry a one year limited warranty. Tuff Stuff has alternator applications for virtually all muscle cars, hot rods, customs and light trucks in just about every finish imaginable. Available in chrome plated, polished aluminum, powder coated and plain as cast finishes. All alternators are for 12 volt, negative ground systems, except where noted.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Tuff Stuff Performance Accessories
Additional Fitment Information:
Vehicle
Powermaster
Alternator Powermaster

P311-37BF8EB    82091  New

Qty:
In Stock & Ready to Ship
$419.29
Powermaster Alternator
  • PowerGEN Alternator
  • PowerGEN Alternator; Black; Custom Mount; 90 Amp; 65 Idle; 12 Volt;
  • Product Attributes:
    • Amperage: 90 Amp
  • Features:
    • Keep Your Correct Vintage Look And Gain Modern Performance
    • 90 Plus Amps At Top End/65 Plus Amps At Idle
    • Easy To Install 1-Wire Internally Regulated
    • Individually Dyno Tested with Proof of Performance Guarantee
    • PowerGen To Create Your Own Custom Mount Brackets
    • Wiring Instructions Included
  • One wire operation. Heavy duty regulator. 90 amps and 65 amps idle. Designed to fit generator bracketry.

    • This is a Universal/Non Application Specific Product. To install this part, you made need to cut, weld, or make other modifications to your vehicle.
Brand: Powermaster
Additional Fitment Information:
Vehicle