Mechman high output alternators · Authorized dealer

Dodge Challenger High Output Alternators

Modified Challengers rarely stay original for long. A supercharger kit brings bigger fuel pumps, a hotter engine brings stronger cooling fans, and plenty of owners still want a serious stereo for the cruise home from the strip. Each Dodge Challenger high output alternator on this page matches our fitment data for 2008-2020 cars, so you can size the charging system to the build.

  • 9 products
  • 2008–2020
  • 240–370 Amp
All Dodge alternators

9 products

Electrical Demand on a Modified Muscle Car

Performance parts are often electrical parts. Upgraded fuel pumps raise current draw at wide-open throttle, high-flow cooling fans run hard in staging lanes and pit traffic, and data loggers, gauges and water-methanol pumps add steady loads. Track-day cars add more again, with an electric water pump, extra fans for an oil cooler and a camera recording every session. When voltage drops, fuel pumps slow down, and that can lean out a boosted engine. A Dodge Challenger high output alternator helps keep voltage where the fuel system expects it, pass after pass.

Two Charging Generations

Challenger fitment is simpler than most, and the vehicle finder at the top of the page makes it quick to confirm. The 2008-2010 cars use one series for the 3.5L, 5.7L and 6.1L. From 2011 to 2020, the 3.6L V6 uses its own unit, while the 5.7L, 6.2L and 6.4L V8s share a different series. If you are not sure which V8 is in the car, check the engine size on the label under the hood. Match your year and engine before ordering a Dodge Challenger high output alternator, since the early and late cars do not use the same family.

240, 320 or 370 Amp

  • 240 Amp: a street car with a fuel pump upgrade, cooling fans and a single amplifier.
  • 320 Amp: a boosted car with extra pumps and gauges, or a multi-amp audio system.
  • 370 Amp: combined performance and audio loads, offered on fewer fitments.

Mechman high output alternators in this collection come in a natural finish. A Big 3 upgrade from our amp wiring kits cuts voltage drop between the alternator and the fuel system, and a lithium battery trims weight for the track. Four-door owners should see the Dodge Charger page, and the Dodge, Ram, Jeep and Chrysler collection covers every other model.