Collection: Used BMW Engines For Sale

1,300+
verified bmw engines
Customer Reviews
3 years
max warranty
Photos before
shipment

Used BMW Engines For Sale

1,300+ verified used BMW engines in stock across every model year — 3 Series, 5 Series, 7 Series, X3, X5, X6, Z4, M3, M5, M6, and more. VIN-matched to your vehicle, ASE-tested by certified technicians, photographed before shipment, backed by up to a 3-year warranty plus 30-day money-back. Free freight nationwide.

Up to 3-Year Warranty
Photos Before Shipment
ASE-Tested & Verified
Free Nationwide Shipping
30-Day Money-Back
Secure SSL Checkout

Browse BMW Engines by Year

Pick your model year for VIN-matched 2018 or 2017 inventory. More year pages coming online weekly — if your year is not yet linked, text us your VIN and we will match you.

BMW Engines We Cover

Real engines from our warehouse, tested and ready to ship. Our BMW inventory spans every major engine family BMW has produced for the U.S. market.

Why Buy a Used BMW Engine from Auto Power Source

BMW engines reward the right buyer and punish the wrong one. The N20 four-cylinder, N52 naturally aspirated inline-6, N54 and N55 turbocharged inline-6s, N62 V8, N63 hot-vee V8, B58 modular six, and the M-division S55/S63/S65/S85 powerplants each have specific VANOS layouts, eccentric-shaft sensors, valve cover gaskets, oil-feed lines, and timing-chain guides that vary by chassis code and production year. A wrong donor engine — even within the same nominal displacement — can mean wasted weeks, return freight, and an engine bay full of incompatible plumbing.

Our 1,300+ verified BMW engines have all been pulled from low-mileage donor vehicles, cataloged by VIN and chassis code (E46, E60, E70, E90, F10, F30, G05, G30, etc.), and held in our climate-controlled warehouse. Each unit went through our six-step inspection: VIN-matching against your chassis, compression and leak-down testing by ASE-certified technicians, noise and smoke verification on the test stand, visual inspection of VANOS solenoids and oil-feed plumbing, multi-angle photography sent for your approval, and palletized shipping.

You pay a fraction of dealer-new pricing for the same BMW Motorsport engineering, ship free on a heavy-duty pallet anywhere in the continental U.S., and get 30 days from delivery to return for any reason — no restocking fees. Up to a 3-year warranty covers you after install. Across 100,000+ Engines+Transmissions In Stock, our fitment-related return rate sits at 0% because we verify before we send.

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

Your BMW Engine Options: Compared

Most BMW owners face four real choices when their engine fails:

← Swipe sideways to see all columns →
Option Cost Reliability Warranty Fitment Match
Used OEM (this collection) $$$ Best Value High Up to 3 years VIN-matched
New OEM (dealer) $$$$$ 2-4× more High Manufacturer Exact
Aftermarket / Reman $$$$ 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.

BMW Engine Buying Guide

Six things to verify before buying a used BMW engine:

  1. Match the engine code, not just the displacement. BMW uses multiple engines at the same displacement across generations — a 3.0L could be M54, N52, N54, N55, B58, or even S54 depending on the chassis. Your VIN's 8th digit and the chassis code together pinpoint the exact engine family.
  2. Confirm chassis code compatibility. Same engine family (e.g. N55) was used across E-series, F-series and G-series chassis with different oil pans, intake manifolds, wiring harnesses, and exhaust manifolds. An F30 N55 will not bolt cleanly into an E92 without bracket and harness changes.
  3. Specify RWD vs xDrive (AWD). Oil pan geometry and front sump shape differ. Order the wrong one and the engine will not clear the front diff or driveshaft on an xDrive car.
  4. For N54 / N55 / S55 turbo engines, ask about HPFP, wastegates, and timing-chain history. These are the well-known wear points; a good donor engine should disclose any prior replacements or the original mileage on critical components.
  5. For V8s (N62 / N63 / S63 / S65 / S85), confirm timing-chain-guide and rod-bearing replacement history. N63 valve-stem-seal recalls and S65 rod-bearing service intervals are make-or-break details for any used V8 donor.
  6. Pre- vs post-LCI matters more than you think. BMW often refreshes harnesses, sensor placement, and ECU mappings mid-cycle. A 2014 F30 N20 from before the LCI window will not always plug-and-play into a 2016 post-LCI car. We verify LCI status during VIN matching.

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

📞 Need help choosing the right engine code? Talk to our team live, Mon-Sat 8:30AM–10:30PM ET. Call 1-877-313-8995

Frequently Asked Questions

What is the warranty on a used BMW engine?
Up to 3 years, depending on the specific unit. The exact warranty term is listed on each product page.
What does ASE-tested mean?
ASE-certified technicians compression-test every cylinder and run leak-down evaluation on engines. Plus noise & smoke verification, visual inspection, and multi-angle photography before shipment.
How long until delivery?
Prep and ship time is 3-5 business days. Transit time is 2-3 business days after dispatch via freight carrier.
Can I see photos before I buy?
Yes. Multi-angle photos of the actual unit sent before payment.
Do I need my VIN?
Strongly recommended for exact-fit matching. BMW engines vary significantly by trim, body style, and year.
What if I do not approve the photos?
Every dollar back. No restocking fees, no return freight charges.
Why cheaper than dealer new?
Used OEM from low-mileage donors. Same BMW engineering, fraction of the cost.
When can I reach customer service?
Mon-Sat, 8:30 AM – 10:30 PM Eastern.
🏆 Earn $500 with Our Rewards Program
Every BMW engine you buy earns rewards. 10 orders (yours or referred) = $500 cash credit. Silver, Gold, and Platinum tiers with discounts, priority support, and private inventory access.
See How Rewards Work →
100K+
Engines+Transmissions In Stock
0%
fitment-related returns
All 50
states covered, free freight
1,000s
Daily Visitors

Our 6-Step Inspection & Shipping Process

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

1. VIN-Matching
We match the donor VIN to your VIN to confirm engine code, emissions calibration, and drivetrain fit.
2. Tested & Verified
ASE-certified technicians compression-test every cylinder and run leak-down evaluation on each engine. Transmissions are Shift-Tested through all gears.
3. Noise & Smoke Verification
Engines are run on the test stand to verify normal mechanical sound, clean exhaust, and no abnormal smoke — catches internal wear static pressure tests miss.
4. Visual Inspection
Every accessible component is inspected: turbos, manifolds, valve covers, 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 dismantle the donor unit and 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 up to 3-year warranty. Have a question about the guarantee or your specific order?

✉ Email Us at info@autopowersource.com