Mechman high output alternators · Authorized dealer

Infiniti Q40 High Output Alternators

The Infiniti Q40 existed for a single model year, 2015, carrying the previous sport sedan body forward with the 3.7L V6. Owners who found one often bought it as a value pick and plan to keep it. This Infiniti Q40 high output alternator is the 400 amp Mechman unit listed for that car.

  • 1 product
  • 2015–2015
  • 400 Amp
  • Billet options
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1 product

One Model Year, One Matching Unit

Fitment here is simple. The billet alternator on this page is listed for the 2015 Q40 with the 3.7L engine, and that covers every Q40 sold. Use the vehicle finder above to confirm year and engine before you order. The same alternator also appears on our Nissan 370Z page, which shares the 3.7L displacement and much of the same enthusiast audience.

Where the Extra Output Goes

A Q40 bought as a sensible used sport sedan rarely stays original. Owners add a stereo with Apple CarPlay or Android Auto, a small amplifier for the door speakers, a trunk subwoofer, and LED fog lights. Some go further with intake and exhaust work. None of that is extreme, but a ten-year-old charging system is already working with aging parts. Swapping in a 400 amp Infiniti Q40 high output alternator restores healthy charging and adds the reserve for future upgrades. Mechman high output alternators reward good supporting parts, so consider a fresh unit from our batteries collection at the same time. Other models are listed on the Infiniti alternator page.