Mechman high output alternators · Authorized dealer

Pontiac Firebird High Output Alternators

Firebirds from 1988 to 2002 are turning into keepers. Owners add modern audio, electric fans and fuel system upgrades while keeping the engine bay sharp enough to show. Every Pontiac Firebird high output alternator on this page is a Mechman unit listed for the 5.0L and 5.7L V8 cars in that span. Start by entering your year in the vehicle finder above, then filter by amperage, finish or housing.

  • 54 products
  • 1988–2002
  • 170–400 Amp
  • Billet options
All Pontiac alternators

54 products

Keeping a Firebird Original Looking, With More Output

Most Firebird builds we see sit between stock and restomod. The owner wants a clean bay, a dependable charging system and enough current for the parts added over the years. The year/make/model selector above sorts these cars into three spans. Cars from 1988 to 1992 use one alternator family. The 1993-1997 cars use another, and some of those listings are marked custom fitment only, so read the notes. The 1998-2002 cars take a third. All three cover the 5.0L and 5.7L V8s. Confirm your year and engine before you pick a Firebird high output alternator.

Finish matters on a car people open the hood on. Billet housings are machined from solid aluminum and come in colors such as Black, Red, Gold and Purple, plus Polished and Chrome. Standard cast housings look closest to the factory part.

What Your Firebird Is Powering

Mechman high output alternators for the Firebird are listed at 170, 240, 250, 320, 370 and 400 Amp. Think about the loads you have added, not the ones you might add someday.

  • 170 Amp: a sensible Firebird high output alternator for a stock-style car with better lighting and a modest amp.
  • 240 to 250 Amp: electric fans, a higher-flow fuel pump and one amplifier around 2,000 W.
  • 320 to 370 Amp: two or more amplifiers, or a car that sees regular track days with every pump and fan running.
  • 400 Amp: a dedicated competition audio build.

If your Firebird sits for weeks between drives, a healthy battery matters as much as the alternator. See our batteries, and replace tired plugs and pigtails from our alternator harnesses and regulators. The Camaro page shares most of these parts and adds the 2010-2015 cars. You can also browse the full GM and Chevrolet alternator collection.