Used Auto Engines – Verified, Tested, Shipped Worldwide

Used Auto Engines – The Smart Way to Fix a Vehicle Without Overspending

Used auto engines are the backbone of the independent repair market. Every day, thousands of vehicles get their engines swapped using used auto engines pulled from write-offs, fleet retirements, and low-mileage donor vehicles. It works. It saves money. And when done right, it keeps a vehicle running reliably for years without the cost of a new engine or the risk of buying the cheapest thing available.

At Best Auto Motors, used auto engines are what we know best. We source them, inspect them, document them, and ship them to repair shops, independent mechanics, and vehicle owners worldwide. This guide covers what used auto engines actually are, what to look for when buying them, and the specs on the platforms we carry most often.

What Used Auto Engines Are and How They Get to Market

Used auto engines come from three main places. The first is collision-damaged vehicles — cars and trucks written off because body repair costs exceeded the vehicle’s value. The engine in these vehicles was often running fine right up until the impact. The second source is vehicles retired from service — fleet vehicles, rental cars, and high-mileage trade-ins where the owner moved on but the engine had life remaining. The third source is Japanese domestic market (JDM) imports, where vehicles are retired much earlier than in other markets due to inspection laws, and the engines come out with remarkably low mileage.

All three sources produce legitimate used auto engines. The quality and the value depend on knowing which category the specific engine falls into, verifying the mileage claim, and checking the engine’s condition before it ships. That’s the process we follow.

Related: How Salvage Yard Engines Save Money | Why Buy Used Engines Instead of New Ones

Used Auto Engines We Carry – Popular Models and Specs

Ford 5.0L Coyote V8 – Gen 1 and Gen 2

Displacement: 5.0L | Configuration: V8, DOHC, Ti-VCT | Horsepower: 360–435 hp (year-dependent) | Torque: 380–420 lb-ft | Compatible with: Ford F-150 (2011+), Ford Mustang GT (2011+). The Coyote V8 is one of the most in-demand used auto engines in the market right now. It powers two of the most popular vehicles in North America and the used supply is consistently fed by collision-damaged trucks and Mustangs. Low-mileage used Coyote engines — under 60,000 miles — are genuinely excellent purchases. We verify mileage on every unit.

Toyota 3UZ-FE 4.3L V8

Displacement: 4.3L | Configuration: V8, DOHC, 32-valve, VVT-i | Horsepower: 280–300 hp | Torque: 310–317 lb-ft | Compatible with: Lexus LS430, Lexus GS430, Lexus SC430, Toyota Celsior. The 3UZ-FE is Toyota’s premium luxury V8. Used auto engines from this family are sourced primarily from JDM Celsior and LS430 imports. Known for smooth, quiet operation and exceptional durability. JDM units often come in under 80,000 km. Popular with Lexus LS430 owners who want to extend the life of a genuinely impressive vehicle.

Honda F22B / F23A 2.2–2.3L Inline-4

Displacement: 2.2–2.3L | Configuration: Inline-4, SOHC or DOHC | Horsepower: 140–160 hp | Torque: 144–155 lb-ft | Compatible with: Honda Accord (5th/6th gen), Honda Odyssey (early), Honda Prelude. Used auto engines in the F-series Honda family are among the most affordable reliable import used engines available. JDM F22B units from 5th-gen Accords regularly come in under 60,000 km and are a popular choice for budget-conscious Accord owners who want Japanese market quality at an accessible price.

GM LQ4 / LQ9 6.0L V8

Displacement: 6.0L | Configuration: V8, OHV, Gen III/IV LS architecture | Horsepower: 300–345 hp | Torque: 360–380 lb-ft | Compatible with: Chevrolet Silverado HD, GMC Sierra HD, Chevrolet Suburban, Tahoe (certain years), Hummer H2. The 6.0L iron-block LS is one of the most popular used auto engines for swap applications. It makes strong power, handles boost modifications extremely well, and used auto engines in this family are available at a wide range of price and mileage points because so many vehicles were equipped with them. An LQ4 or LQ9 from a fleet truck is often one of the best-value used auto engines on the market.

Mitsubishi 4G63T 2.0L Turbocharged

Displacement: 2.0L | Configuration: Inline-4, DOHC, turbocharged, AWD-compatible | Horsepower: 240–280 hp | Torque: 228–260 lb-ft | Compatible with: Mitsubishi Lancer Evolution (1–9), Mitsubishi Eclipse GST/GSX (early), Galant VR-4. The 4G63T is one of the most legendary turbocharged four-cylinder engines in automotive history. Used auto engines from JDM Lancer Evolution imports are in consistent demand from the performance and motorsport community worldwide. We source from verified JDM suppliers and document odometer readings from original import auction sheets.

BMW S65 4.0L V8 (M3 Engine)

Displacement: 4.0L | Configuration: V8, DOHC, 32-valve, naturally aspirated | Horsepower: 414 hp | Torque: 295 lb-ft | Compatible with: BMW E90/E92/E93 M3 (2008–2013). The S65 is one of the finest naturally aspirated engines BMW ever built. Used auto engines from crashed E90/E92 M3s are highly sought after by M3 owners doing engine replacements and by builders fitting the S65 into other BMW platforms. These are specialist used auto engines that require careful sourcing — we verify mileage, rod bearing condition documentation, and throttle actuator status on every S65 we carry.

Nissan VK56DE 5.6L V8

Displacement: 5.6L | Configuration: V8, DOHC, 32-valve | Horsepower: 317–390 hp | Torque: 385–394 lb-ft | Compatible with: Nissan Titan (2004+), Nissan Armada, Nissan Patrol (certain markets), Infiniti QX56/QX80. The VK56 is Nissan’s full-size truck and SUV V8. Used auto engines in this family from Titans and Armadas with documented mileage are practical, affordable alternatives to dealer new-engine pricing for owners of these large vehicles.

How to Evaluate Used Auto Engines Before Buying

The mileage number is the starting point, not the whole story. When evaluating used auto engines, these are the things that actually tell you whether the engine is worth buying:

• Mileage verification: How was it confirmed? Vehicle history report? Odometer documentation? JDM auction sheet? A claimed mileage with no verification is just a number.
• Oil condition: Pull the dipstick image or ask for it. Brown oil = used but maintained. Black sludge = neglected. Milky = water intrusion.
• Compression test: Even numbers across all cylinders, in the expected range for that engine, is a strong positive indicator. A weak cylinder is a problem.
• Gear oil / timing components: Check the valve cover and timing cover for sludge or dry, cracked components. Sludge indicates infrequent oil changes that harm timing chain tensioners over time.
• Visual inspection: Cracks in the block or heads, corrosion around coolant passages, evidence of impact damage or prior overheating are all disqualifiers.

We document all of this for the used auto engines we sell. You get a clear picture of what you’re buying before money changes hands.

Used Auto Engines – Installation Tips That Protect Your Investment

A well-sourced used auto engine that’s installed carelessly can still cause problems. Protect your investment by replacing the following items at installation time regardless of their apparent condition: timing belt and tensioner (if applicable), water pump (if belt-driven), thermostat, coolant hoses, spark plugs, and the rear main seal. These are cheap parts and replacing them now eliminates the most common sources of premature failure after a used engine swap.

Always use a torque wrench for head bolts and main bearing caps. Torque specs are engine-specific and guessing gets people in trouble. See: Engine Rebuild vs Replacement for practical planning guidance.

Order Used Auto Engines From Best Auto Motors

Give us your year, make, model, trim level, and VIN. We’ll pull up matching used auto engines from current inventory, confirm the mileage and condition documentation, and quote you a price including shipping. We ship worldwide. Whether you’re a shop buying your tenth engine from us or a first-time buyer replacing your own vehicle’s engine, the process is the same — honest information, documented product, no surprises.

More: Replacement Engines | Second Hand Car Engines | Remanufactured Engines | Used Engines for Sale | Low Mileage Used Engines

For vehicle-specific engine specs and OEM compatibility data, Car and Driver’s research database provides manufacturer specifications used as reference by used auto engine buyers and installers worldwide.