Used & Remanufactured Engines for Sale — Warrantied & Ready to Ship

Used & Rebuilt Engines for Sale - Tested, Warrantied & Ready to Ship

Moon Auto Parts is one of the most trusted sources for used and rebuilt engines in the USA. We supply quality-tested replacement engines for every major domestic and import vehicle, including Ford, Chevrolet, Toyota, Honda, Nissan, Dodge, Jeep, BMW, Mercedes-Benz, Hyundai, Kia, and more.

Every used engine in our inventory has been physically inspected, compression-tested, and OBD-II scanned by our team before it is listed for sale. We only list engines that pass our multi-point quality check — which means you receive a unit that is ready to install, not a gamble from an unknown source.

Our remanufactured engines go even further. Each one is fully disassembled, machined to OEM tolerances, and rebuilt with new internal components, bearings, pistons, rings, oil pumps, gaskets, and valve seals before being pressure-tested and approved for sale. These engines are ideal if you want near-new performance at a fraction of new engine cost.

What Makes Our Engines Different?

Low-mileage units—We prioritize engines under 80,000 miles from our 5,000+ junkyard network.

Grade-rated inventory—Every engine is graded A, B, or C so you know exactly what you're getting.

VIN-matched compatibility—We verify engine fitment against your specific VIN before shipping.

No hidden fees—the price shown is the price paid. No surprise core charges on used engines.

Fast dispatch — most orders ship within 1–2 business days from our US warehouse.

Whether you need a drop-in used engine replacement to get your vehicle back on the road quickly or a fully remanufactured engine built to exceed OEM specs, Moon Auto Parts has the right solution at the right price. Search by year, make, and model above — or call us at +1 888-777-0769.

Types of Used Engines We Carry

We stock used and remanufactured engines across every major fuel type and drivetrain configuration. Here is a breakdown of what we carry and what each type is best suited for:

Gasoline (Petrol) Engines

Our largest inventory category. We stock 4-cylinder, V6, and V8 gasoline engines from all major manufacturers — ideal for sedans, crossovers, trucks, and SUVs. Popular models include the Honda K24, Toyota 2ARFE, Ford 5.0L Coyote, GM LS3, and Chrysler 5.7L HEMI.

Diesel Engines

We carry diesel replacement engines for pickup trucks, vans, and commercial vehicles. Top-selling units include the Ford 6.7L Power Stroke, Dodge 5.9L Cummins, GM 6.6L Duramax, and Mercedes OM651. Perfect for high-mileage work trucks needing a dependable swap.

Flex-Fuel & E85 Engines

Many of our used engines support flex-fuel (E85) operation, they are compatible with both gasoline and ethanol-blended fuels. We verify flex-fuel compatibility and note it on each listing so you can buy with confidence.

Hybrid System Engines

For hybrid vehicles like the Toyota Prius, Honda Accord Hybrid, and Ford Escape Hybrid, we supply the combustion engine component of the hybrid drivetrain. Our technicians verify hybrid engine compatibility before shipping.

High-Performance & Specialty Engines

Looking for a performance upgrade or a hard-to-find engine? We work with our 5,000+ junkyard network to source low-mileage, high-output engines, including the Subaru EJ257 (WRX STI), Nissan VQ35DE (350Z/G35), Ford 5.4L Triton, and many more. Call us with your requirements, and we'll locate them.

How to Find Your Engine Code Before You Buy

Your engine code (also called engine ID or engine designation) identifies the exact engine variant fitted to your vehicle. Getting this right ensures perfect fitment—the wrong code means the wrong engine. Here are the three most reliable ways to find your engine code:

Check your VIN (Vehicle Identification Number)—digits 4 through 8 of your 17-character VIN encode your engine type, fuel system, and displacement. You'll find your VIN on the driver's-side dashboard, the door jamb sticker, or your registration documents.

Look under the hood—most manufacturers stamp or sticker the engine code directly on the engine block or on a label inside the engine bay. Common locations: valve cover, intake manifold, or firewall sticker.

Check your owner's manual—the vehicle specifications section lists your engine designation, displacement, and fuel type.

Not sure? Call us with your VIN, and our engine specialists will identify your exact engine code and confirm compatibility at no charge—before you place any order.

Common Engine Codes We Stock

Popular used engines across brands offer a balance of reliability and performance. Toyota’s 2AR-FE 2.5L powers Camry and RAV4, while Honda’s K24A/K24Z 2.4L is common in Accord and CR-V. For power, Ford’s 5.0L Coyote V8 appears in F-150 and Mustang GT. Chevrolet LS3/LQ4 V8 engines (6.0–6.2L) are used in Silverado and Camaro, while Dodge 5.7L HEMI V8 fits Ram 1500 and Charger. Nissan’s VQ35DE 3.5L V6, Subaru EJ257 2.5L Boxer, and BMW N52/N54 3.0L inline-6 are also popular choices across performance and luxury vehicles.

VIN Matched Engines & Fitment Support

VIN Matched Engines & Fitment Guarantee

Fitting the wrong engine is an expensive mistake. That's why every order at Moon Auto Parts includes a free VIN compatibility check before your engine ships.

Engine compatibility is more complex than physical dimensions. It also includes the engine control module (ECM) pairing, emissions calibration, transmission compatibility, and sensor configurations. Our team cross-references your VIN against the engine listing to confirm every one of these parameters — not just the displacement and cylinder count.

What We Verify Before Shipping

• Engine displacement, fuel type, and variant code match your VIN
• Transmission type compatibility (automatic vs manual, number of speeds)
• Emissions compliance for your state (CARB vs Federal spec)
• Sensor and harness connector configuration
• Accessory drive layout (A/C, power steering, alternator mounting)

If you are unsure about compatibility, call our specialists at +1 888-777-0769. Give us your VIN, and we will look up the exact compatible engine from our inventory at no charge. We have helped over 10,000 customers find the right engine the first time.

Engine Inspection & Remanufacturing Process

How We Inspect Every Engine Before It Ships

We don't just pull an engine from a junkyard and ship it. Every engine goes through a structured 6-step inspection and quality process before it reaches you:

1. VIN & Vehicle History Verification

We start by verifying the engine's source vehicle—confirming the make, model, year, VIN, and running history. We check for accident records, odometer fraud indicators, and any flood or fire damage history before the engine is accepted into our inventory.

2. Visual Inspection

Our technicians perform a thorough visual check for oil leaks, rust, damaged belts and hoses, cracked components, and milky residue in the oil, which indicates a blown head gasket or coolant leak. Any engine showing these signs is rejected or flagged for remanufacturing only.

3. Compression Test

We perform a cylinder-by-cylinder compression test on every used engine. A healthy engine should show consistent compression across all cylinders within manufacturer specs. Engines with low or uneven compression are not listed for direct sale.

4. OBD-II Diagnostic Scan

We connect an OBD-II scanner to check for stored fault codes (DTCs), sensor errors, and ECM flags. Hidden faults that a visual inspection would miss are caught at this stage — including issues with the VVT system, fuel trims, and knock sensor readings.

5. Mileage Verification

Mileage is verified against the vehicle's telematics data and VIN history. We do not list engines with unverifiable or inconsistent mileage records. Every listing shows the verified miles so you can make an informed decision.

6. Final QA Sign-Off

Only engines that pass every stage receive a final QA approval and are listed for sale. Each approved engine is tagged with its grade (A, B, or C), verified mileage, and inspection date—visible on the product listing page.

Why Thousands of Customers Choose Moon Auto Parts?

Moon Auto Parts is a registered US company (Moon Auto Parts LLC, Salina, KS) with years of experience supplying quality used and remanufactured engines to individual car owners, independent mechanics, and auto repair shops across the country.

Here's what sets us apart from other online engine sellers:

• 5,000+ verified junkyard partners across the USA — giving us access to one of the largest inventories of used engines available online
• Grade-rated, mileage-verified engines — every listing shows confirmed miles and an A/B/C quality grade, not just a vague "good condition" description
• AI-powered search — our search tool matches your year, make, model, and VIN against our live inventory to find the most compatible engine for your vehicle
• No surprise costs — zero core charge on used engines, free shipping to commercial addresses, and a price you can trust before you check out
• Real human support — call +1 888-777-0769 and speak directly with an engine specialist who knows their inventory. No bots, no overseas call centers

We have supplied engines for everyday commuters, fleet vehicles, performance builds, and classic restorations. Whatever you drive, we can find the right engine for it. And back it with our 4-year / 40,000-Mile warranty.