2012 Used Nissan Engines For Sale

38
verified 2012 Nissan engines
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2012 Used Nissan Engines For Sale

38 tested 2012 Nissan engines, every one matched to your VIN before it ships. 2012 is the V8 Pathfinder year: the body-on-frame R51 ran the 4.0L VQ40DE at VIN A and the 5.6L VK56DE at VIN B, and from 2013 the nameplate became a transverse 3.5L unibody instead. The Sentra carried three engines in one model year. Free US freight, warranty included.

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Warranty On Every Unit
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ASE-Tested & Verified
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2012 Nissan Engine Families

Which engine sits under which 2012 Nissan, and how many of each we hold today.

Engine family Fits (2012) In stock
QR25DE 2.5L four, transverse Altima 2.5 (VIN A, Federal and California), Rogue (VIN A, with and without tow package), Sentra 2.5 (VIN B automatic, VIN C manual). Mounted across the bay. 6
VQ40DE 4.0L V6 Two builds on one code, split by VIN letter: VIN A in the Xterra, Pathfinder 4.0 and Frontier 4.0 (3 units), VIN B in the NV1500 / NV2500 / NV3500 (3 units). Both north-south; accessory drive and front dress differ. 6
5.6L V8, no engine code in the listing Titan and Armada, separated only by fuel calibration: VIN A unleaded, VIN B flex. Displacement matches the VK56DE but these titles name no code, so they get their own row. 6
MR18DE 1.8L four Cube at VIN A (California automatic, California manual, Federal automatic) and Versa 1.8 at VIN B. One engine, two VIN letters, split by nameplate. 4
VQ35DE 3.5L V6 Quest, Murano and Maxima at VIN A, Altima 3.5 at VIN B. All transverse, all behind a CVT. 4
VK56DE 5.6L V8, coded Pathfinder 5.6 at VIN B, NV2500 / NV3500 5.6 at VIN A. The only 2012 listings naming the V8 code outright. 3
MR20DE 2.0L four Sentra 2.0 at VIN A, listed twice for the two emissions packages: Federal and California. 2
MR16DDT 1.6L turbo four Juke at VIN A, one CVT and one manual. Direct-injected and turbocharged. 2
VQ37VHR 3.7L V6 370Z at VIN A, split by a production break: one unit built thru 4/12, one from 5/12. 2
HR16DE 1.6L four Versa 1.6 at VIN C, new for 2012. Shares nothing with the 1.8L MR18DE sold alongside it. 1
QR25DE 2.5L four, longitudinal Frontier 2.5 at VIN B. Same code, turned north-south: different sump, mounts, brackets and intake routing, not interchangeable with a car unit. 1
EM61 electric traction motor Leaf. An electric drive assembly, not an engine, sourced and warranted as a unit. 1
Total 38

Other Nissan Model Years

Every model year we hold Nissan engines for. Years without a link are in stock but have no year page yet — text us your VIN.

2024202320222021202020192018201720162015201420132012
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Why Buy a 2012 Nissan Engine from Auto Power Source

2012 is the last year of the R51 Pathfinder, and the only kind of year where one Nissan nameplate hands you two completely different engines. We hold both: the 4.0L VQ40DE at VIN A and the 5.6L VK56DE V8 at VIN B. From 2013 the Pathfinder became a unibody with a transverse 3.5L VQ35DE and a CVT, so a 2012 and a 2013 Pathfinder share a badge and nothing else. Give us the year and the fourth VIN digit.

The 2012 Sentra is the clearest case here of a VIN letter doing real work. One car, three engines: the 2.0L MR20DE at VIN A in two emissions packages, the 2.5L QR25DE at VIN B with the CVT, and the same QR25DE at VIN C with the manual. The letter follows the gearbox, so a 2.5L Sentra engine ordered on litres alone is a coin flip.

The 2.5L QR25DE itself runs two ways in 2012: across the bay in the Altima, Rogue and Sentra, north-south in the Frontier. The long block is close; the sump, mounts, brackets and intake routing are not, and a car unit will not drop into the truck. We publish two family rows rather than one, so what you are buying is stated rather than averaged.

Four of our 2012 5.6L V8s name no engine code at all. The Titan and Armada listings carry the displacement and a fuel letter only, VIN A unleaded and VIN B flex, while the Pathfinder and NV vans name the VK56DE outright. The displacement matches and in all likelihood the engine does too, but we publish the codeless units on their own row because we will not sell you a code the listing does not carry.

Every unit is a used OEM engine from a low-mileage donor vehicle, pulled and inspected before listing. Our ASE-certified technicians compression-test every cylinder and run a leak-down evaluation; the direct-injected MR16DDT gets its high-pressure fuel pump and oil-control circuit checked, and the Leaf's EM61 is bench-tested as a drive assembly. We match the donor VIN to your VIN before anything ships, and US freight is free with a warranty included.

📱 Fastest way to match: text us your VIN, get options in minutes.Text Your VIN →

Your 2012 Nissan Engine Options: Compared

Most 2012 Nissan owners face four real choices when the engine fails:

← Swipe sideways to see all columns →
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.

2012 Nissan Engine Buying Guide

5 things to verify before buying a used 2012 Nissan engine:

  1. Read the engine code, then the layout. On 2012 Nissan stock the code is only half the answer. A 2.5L QR25DE out of a Frontier is mounted north-south; the same code out of an Altima, Rogue or Sentra sits across the bay. Give us the model and we will hand you the right orientation, not just the right litres.
  2. On a Pathfinder, check the fourth VIN digit first. The 2012 Pathfinder was sold with two unrelated engines, the 4.0L VQ40DE at VIN A and the 5.6L VK56DE V8 at VIN B. It is the last year of that body, so a 2013 part number is no guide.
  3. Confirm the fuel calibration on the 5.6L V8s. Titan and Armada listings give the displacement and a VIN letter without naming a code: VIN A unleaded, VIN B flex fuel. The Pathfinder and NV van V8s do name the VK56DE. Treat the two sets as separate until the VIN says otherwise.
  4. Confirm Federal versus California emissions on the small fours. The 2.0L MR20DE in the Sentra and the 1.8L MR18DE in the Cube are each listed as separate units for the two emissions packages. The long block is common; the calibration, plumbing and catalyst arrangement are not, and a mismatch can fail an inspection.
  5. Confirm the match with your own VIN before you order. Your VIN settles the engine code, the orientation, the fuel calibration, the gearbox split and the emissions package in one step. Text it to +1-307-441-5554 and we will confirm in writing which unit fits before you pay.

Our ASE-certified technicians verify every one of these points against your VIN before any unit ships.

📞 Need help choosing the right 2012 Nissan engine? Talk to our team live.Call 1-877-313-8995

Frequently Asked Questions

How many 2012 Nissan engines do you have in stock?
38 active 2012 Nissan engines today, across 13 nameplates and 12 engine families. The table above is the live breakdown; stock moves, so text +1-307-441-5554 with your VIN.
Did the 2012 Pathfinder really come with a V8?
Yes. 2012 is the final year of the body-on-frame R51 Pathfinder and we hold one of each: the 4.0L VQ40DE at VIN A and the 5.6L VK56DE V8 at VIN B. From 2013 it became a unibody with a transverse 3.5L VQ35DE, so nothing carries over. Check the fourth VIN digit.
Why are there two 2.5L QR25DE rows on this page?
Because the same engine is installed two ways in 2012: transverse in the Altima, Rogue and Sentra, longitudinal in the Frontier. The sump, mounts, brackets and intake routing differ, so we list them separately.
My 2012 Sentra is a 2.5L. Which engine is it?
A QR25DE either way, but the VIN letter follows the gearbox: VIN B for the CVT, VIN C for the manual. The Sentra also came as a 2.0L MR20DE at VIN A. Send the VIN and we will name the exact one.
Some of your 5.6L V8 listings have no engine code. Why?
Four 2012 Titan and Armada units are titled with the displacement and a fuel letter only, VIN A unleaded and VIN B flex, while the Pathfinder and NV vans name the VK56DE outright. The displacement matches and it is very likely the same engine, but we do not print a code a listing does not carry.
Is the Leaf listing an engine?
No. The 2012 Leaf unit is an EM61 electric traction motor, sourced, tested and warranted as a drive assembly. It is counted here because it is what the car uses in place of an engine, and labelled as a motor.
Do you have a 2012 Nissan engine that is not listed here?
Possibly. This page shows what is active now and stock changes daily. If your nameplate or engine code is missing, text +1-307-441-5554 with your VIN and we will source it and confirm before you pay.
What warranty and shipping come with a 2012 Nissan engine?
Every unit ships with a warranty included, free freight anywhere in the continental US, and photographs of the actual engine before it leaves. Call 1-877-313-8995 or email info@autopowersource.com for the terms on your unit.
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100K+
Engines+Transmissions In Stock
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Our 6-Step Inspection & Shipping Process

Every Nissan engine we ship has been through these six steps:

1. VIN-Matching
We match the donor VIN to your VIN to confirm the engine code (4th VIN digit), California vs federal emissions calibration, and drivetrain fit.
2. Tested & Verified
ASE-certified technicians compression-test every cylinder and run leak-down evaluation. Every 2012 unit has its layout and fuel calibration verified individually rather than inferred from the code, the codeless 5.6L V8s are separated by fuel letter before any unit is picked, the direct-injected MR16DDT is checked on the high-pressure fuel pump and oil-control circuit, and the Leaf EM61 traction motor is bench-tested as an assembly.
3. Noise & Smoke Verification
Units are run to verify normal mechanical sound and clean operation — catches internal wear static tests miss.
4. Visual Inspection
Every accessible component is inspected: turbos, manifolds, valve covers, housings, accessories, sensor harnesses.
5. Photograph & Catalog
Multi-angle photos sent to you BEFORE we ship for your approval.
6. Palletize & Ship
Strapped on a heavy-duty wooden pallet, shipped via freight at no charge.

Our Photos-Before-Shipment Guarantee

Before any engine leaves our warehouse, we send you multi-angle photographs. You approve. If you do not approve, you get every dollar back — no questions, no restocking fees, no return freight charges. On top of 30-day money-back and the warranty included with every unit. Browse all 38 2012 Nissan engines below.

✉ Email Us at info@autopowersource.com
No match? Text VIN →