Used Infiniti Engines

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Used Infiniti Engines for Sale: Verified OEM Replacements

Infiniti vehicles are defined by their advanced VQ-Series powertrains, blending performance with durability. When your G-Series sedan or FX crossover requires an engine replacement, you need a solution that restores factory specifications without the high cost of a new crate engine.

At American Used Auto Parts LLC, we supply verified, expertly inspected used Infiniti engines for sale across the United States. We maintain a specialized inventory of VQ35, VQ37, and VK56 assemblies, offering a cost-effective way to extend the service life of your vehicle.

We are committed to technical accuracy, ensuring you secure the precise VIN-matched assembly, critical for distinguishing between RWD (Rear-Wheel Drive) and AWD (All-Wheel Drive) oil pan configurations.

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Get a Free Quote or call us now for instant Support & Free Consultancy.

Our Quality Assurance Standard: The Infiniti Protocol

1. Strategic Network Sourcing

We source used Infiniti assemblies exclusively from verified insurance auctions and dismantling partners. We utilize the VIN (Vehicle Identification Number) to confirm the specific engine generation, ensuring you receive the correct "DE" (Standard), "Rev-Up", or "HR" (High Response) variant.

G-Series & Q-Series: We stock verified 3.5L (VQ35) and 3.7L (VQ37) units for the G35, G37, and Q50.
Crossover Performance: Sourcing for the 3.5L and 5.0L (VK50) engines found in the FX and QX lineup.
Full-Size V8: We maintain inventory for 5.6L (VK56VD) replacements for the QX56 and QX80 SUVs.

2. The "Long Block" Inspection Protocol

Our technicians focus on the known failure points of the VQ engine family.

Oil Gallery Gasket Check (Critical): On VQ35HR and VQ37VHR engines (2007-2013), internal paper oil gaskets are known to fail. We inspect oil pressure data to ensure these gaskets are intact and the engine maintains proper pressure at idle.
Compression Verification: We test cylinder pressure to ensure rings are sealing properly. This is vital for older "Rev-Up" engines, which are prone to factory oil consumption issues.
Timing Chain Tensioner: We check for "chain slap" noise on start-up, a common sign of hydraulic tensioner failure on high-mileage units.
Crankshaft End-Play: We verify the crankshaft thrust bearing is within spec, ensuring the engine hasn't suffered from transmission-related stress.

3. Accessory Policy (Critical)

To provide the best value, our engines are sold as Long Block Assemblies.

Included: Block, Cylinder Heads, Pistons, Crankshaft, Camshafts, Timing Cover.
Convenience Items: Accessories such as the Alternator, AC Compressor, Power Steering Pump, and Intake Manifold may be left attached for your convenience, but they are not covered under warranty. We highly recommend installing a new water pump and thermostat to guarantee reliability.

4. Professional Logistics & Safety

Once approved, every engine is fully drained of hazardous fluids to comply with shipping regulations.

Secure Palletizing: The engine is strapped to a standard 4x4 pallet and shrink-wrapped.
Sensor Protection: We take care to protect the VVEL (Variable Valve Event and Lift) control motors and solenoids during transit, as these are expensive to replace.

Secure Your Infiniti Engine: Request a Free Quote

Don't let an oil gallery failure or rod knock keep your G37 off the road. American Used Auto Parts LLC makes the sourcing process transparent and secure.

Your Quote Process

Request a Free Quote

Fill out our secure online form. Please have your VIN ready so we can identify if your vehicle is RWD or AWD (as the oil pans are different).

Expert Matching

Our team uses OEM data to ensure the replacement unit matches your specific transmission flange and sensor configuration.

Fast, Reliable Delivery:

We ship directly to your repair shop or residence via insured LTL Commercial Freight. (Commercial address delivery is highly recommended).

Find Your Perfect Part at American Used Auto Parts

At American Used Auto Parts, we are all about getting your vehicle running great and saving you money. With our extensive inventory and commitment to quality, we are your go-to source for reliable used auto parts.

Used Engines: Verified OEM Replacements

Need a reliable replacement engine? Skip the high dealership costs. We stock a vast inventory of tested gas and diesel assemblies for all major domestic and import makes. Get your vehicle running smoothly again with a quality, low-mileage powertrain.

Turbochargers: Restore Factory Power

Replace worn induction units with our inspected used turbochargers and superchargers. Our verified components offer a precise, high-performance alternative to buying new, helping you restore original factory specifications and power for a fraction of the price.

Used Transmissions: Guaranteed Fitment

Drivetrain issues shouldn't keep you off the road. As a leading US supplier, we provide quality tested transmissions for cars, trucks, and SUVs. Whether you need an automatic, manual, or CVT, our nationwide network ensures the exact match for your vehicle.

Used Body Parts: Affordable Repairs

Fix collision damage without breaking the bank. At American Used Auto Parts LLC, we supply inspected OEM body panels—from bumpers and fenders to hoods and doors. Restore your vehicle’s exterior condition efficiently with genuine parts at significant savings.

Nationwide Inventory Network

6-Month Standard Parts Warranty

Fast Shipping

Quality Tested Auto Parts

The Smart Choice: Why Choose Recycled Auto Parts?

Genuine used auto parts are high-quality components reclaimed from vehicles to offer a cost-effective repair solution. We provide a wide array of inspected OEM items including engines, transmissions, alternators, rear axles, AC compressors, and other essential mechanical components, helping you restore your vehicle’s performance for less.

Smart Cost Savings

The most immediate benefit of choosing recycled auto parts is the substantial value compared to purchasing new dealer components. For vehicle owners managing maintenance costs, this translates into smart financial savings, allowing you to get your car back on the road efficiently without compromising on quality.

Genuine OEM Reliability

Unlike generic aftermarket copies, recycled auto components are Genuine OEM parts originally manufactured by your vehicle’s maker. This ensures precise fitment and established performance standards. To provide complete confidence, every part we sell is inspected and backed by our comprehensive warranty, offering you total peace of mind.

Eco-Friendly Automotive Solutions

Choosing recycled car parts is a win for the environment. By opting for reclaimed components, you are actively participating in the circular economy, keeping usable materials out of landfills. This practice significantly reduces manufacturing waste and contributes to the conservation of natural resources.

Nationwide Inventory Access

No matter what specific assembly you are searching for, our extensive network makes it simple to find. From replacement parts for domestic trucks to imported sedans like BMW or Honda, our vast selection ensures you can easily source the exact auto part you need, shipped directly from facilities in the USA.

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