Mechman high output alternators · Authorized dealer

Lexus IS300 High Output Alternators

The IS300 earned a loyal tuner following thanks to its 3.0L inline-six and rear-drive balance, and many end up at car meets with custom audio and lighting. A Lexus IS300 high output alternator keeps those builds powered. Mechman lists a 320 Amp unit and a 240 Amp unit for 2001-2005 IS300 models with the 3.0L engine.

  • 2 products
  • 2001–2005
  • 240–320 Amp
All Lexus alternators

2 products

Powering a Tuner Favorite

A modified IS300 tends to carry more electronics than it left the dealer with: an amplifier rack, a subwoofer enclosure, LED or HID lighting, extra gauges and sometimes an electric fan or upgraded fuel pump as part of a performance build. All of it competes for current, and the strain shows at idle at a car meet with the system playing. A Lexus IS300 high output alternator keeps voltage up so the music, the lights and the engine electronics all get what they need.

Selecting 320 Amp or 240 Amp

Both Mechman high output alternators listed here fit the 2001-2005 IS300 with the 3.0L engine. The 240 Amp unit suits a daily driver with a moderate audio upgrade. The 320 Amp unit fits show builds with several amplifiers or heavy accessory loads. Confirm your year and engine in the vehicle finder above the products before ordering.

Upgrade the main power path with one of our amp wiring kits, add a dedicated battery for the audio system if needed, and see more models on the Lexus alternators page.