Why Buy a Used Infiniti Transmission from Auto Power Source
Infiniti builds on Nissan hardware, and the same family name covers units that do not swap — the RE7R01A seven-speed is a different calibration behind the VQ37VHR, the VR30DDTT at 300 HP and the VR30DDTT at 400 HP, the five-speed of the G35 sedan is not the coupe unit, and every AWD Infiniti transmission carries a transfer output the RWD unit lacks. Every product on this page is titled by model, drivetrain and the mid-year VIN break where Infiniti made one. Our 484 verified Infiniti transmissions cover the whole run: the seven-speed in the G37, Q50, Q60, Q70, M and QX70, the five-speed in the G35, FX, M35, M45 and EX35, the Q50 and Q60 3.0t units by output, the QX56 and QX80 units by 4x2 and 4x4, the CVTs in the JX35, QX60 and QX50, the six-speed manuals of the G35, G37 and Q60, and the 1990s Q45, J30, I30, G20 and QX4 automatics.
Every Infiniti transmission we sell has been pulled from a low-mileage donor vehicle, cataloged by VIN, and held in our climate-controlled warehouse pending sale. Each unit goes through our six-step inspection — VIN-matching against the donor and against your vehicle, Shift-Testing through every gear under load, noise verification, full visual inspection of case, pan and bellhousing, multi-angle photography for your approval, and palletized freight. Seven-speed units get a valve-body and solenoid check under load, CVT units get a belt and pulley inspection, and AWD units have the transfer output inspected. Rejected units never reach the buyer.
You pay a fraction of dealer-new pricing for the same Infiniti engineering, ship free on a heavy-duty pallet anywhere in the continental U.S., and have 30 days from delivery to return for any reason — no restocking fees. The warranty printed on the listing — with extended coverage up to 3 years available — covers you if anything goes wrong after install. Across 100K+ engines and transmissions in stock, we hold a 0% fitment-related return rate.
Your Infiniti Transmission Options: Compared
Most Infiniti owners face four real choices when the transmission fails:
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| Option |
Cost |
Reliability |
Warranty |
Fitment Match |
| Used OEM (this collection) |
$$$ Best Value |
High — tested |
Included |
VIN-matched |
| New OEM (dealer) |
$$$$$ 2-4× more |
High |
Manufacturer |
Exact |
| Aftermarket / Reman |
$$$$ |
Varies |
6-12 mo |
May adapt |
| Junkyard |
$ Cheapest |
Unknown |
None |
DIY |
Tested used OEM hits the sweet spot — same engineering as new, fraction of the cost.