Description
Description
The 2009-2014 Acura TL, RL J37A4 3.7L Remanufactured Engine belongs to Honda and Acura’s well-known J-series V6 engine family. These engines are widely recognized for their smooth performance, efficient design, and dependable long-term durability.
The J37A4 engine is a 3.7-liter V6 that was developed to power Acura’s luxury performance sedans. It delivers strong acceleration, smooth engine operation, and reliable everyday driving performance.
Over time, engines can develop internal wear due to mileage, heat cycles, and constant use. When this happens, replacing the original engine with a remanufactured unit can restore vehicle performance and extend the life of the vehicle.
The 2009-2014 Acura TL, RL J37A4 3.7L Remanufactured Engine provides a dependable replacement solution designed to restore power, efficiency, and smooth engine performance.
Vehicles This Engine Fits
The 2009-2014 Acura TL, RL J37A4 3.7L Remanufactured Engine is designed for Acura vehicles originally equipped with the 3.7-liter J37A4 V6 engine.
Typical compatible vehicles include:
• Acura TL 3.7 (2009-2014)
• Acura RL (2009-2012)
These vehicles rely on the J37A4 engine to deliver responsive acceleration, refined engine operation, and dependable long-distance driving performance.
Because engine compatibility depends on the engine code and vehicle configuration, verifying the VIN number and engine designation is essential before installation.
Build Quality and Engineering
The 2009-2014 Acura TL, RL J37A4 3.7L Remanufactured Engine is rebuilt through a detailed remanufacturing process designed to restore reliability and performance.
During rebuilding, the engine is completely disassembled so every internal component can be carefully inspected. Components showing signs of wear or damage are replaced or restored to meet proper operating standards.
Important engine components inspected during rebuilding include:
• engine block
• crankshaft
• pistons and piston rings
• camshafts
• cylinder heads
• bearings and seals
Machining procedures help restore important surfaces and ensure correct alignment of moving components. These procedures help maintain compression, lubrication, and combustion efficiency.
The Acura J-series engine design emphasizes smooth operation, strong internal durability, and efficient airflow for balanced engine performance.
Why This Engine Is a Reliable Choice
The 2009-2014 Acura TL, RL J37A4 3.7L Remanufactured Engine remains a dependable replacement option because Acura’s J-series V6 engines have a long reputation for smooth performance and durability.
Many Acura vehicles continue operating reliably for high mileage when properly maintained. Installing a remanufactured replacement engine allows drivers to restore their vehicle’s performance without replacing the entire car.
Vehicle owners often choose remanufactured engines because they provide several advantages:
• restored engine performance
• compatibility with original vehicle systems
• dependable power delivery
• reduced uncertainty compared to used engines
Replacing the engine with a professionally rebuilt unit allows the vehicle to continue delivering reliable performance for many additional years.
Who This Engine Is Designed For
The 2009-2014 Acura TL, RL J37A4 3.7L Remanufactured Engine is designed for buyers who require a dependable replacement engine for compatible Acura vehicles.
Typical buyers include:
• Acura vehicle owners replacing worn engines
• automotive repair shops performing engine replacements
• professional technicians specializing in Acura vehicles
• fleet maintenance operators
This engine is particularly suitable for vehicles that remain structurally sound but require a replacement engine to restore performance and reliability.
Engine Specifications
The 2009-2014 Acura TL, RL J37A4 3.7L Remanufactured Engine is a 3.7-liter V6 engine developed within Honda and Acura’s J-series engine architecture.
The engine features six cylinders arranged in a V configuration and utilizes electronic fuel injection to deliver efficient fuel delivery and combustion control.
This engine platform was engineered to provide smooth power delivery, balanced performance, and dependable operation for luxury performance sedans.
The engine integrates with factory drivetrain components including the transmission, fuel system, and engine control module.
Because it is designed as a direct replacement engine, it connects with the original drivetrain components used in compatible Acura vehicles.
Ordering and Support
Ordering the 2009-2014 Acura TL, RL J37A4 3.7L Remanufactured Engine provides a dependable solution for vehicles experiencing engine wear or failure.
Before purchasing a replacement engine, compatibility should be confirmed using the vehicle VIN number, engine code, and model year.
Professional engine suppliers often assist customers in verifying the correct engine configuration before purchase. This ensures proper installation and compatibility with the vehicle’s systems.
With proper installation and routine maintenance, a remanufactured engine can provide dependable performance for many years.
Frequently Asked Questions
What vehicles use the J37A4 engine?
The J37A4 3.7-liter V6 engine is commonly found in Acura TL 3.7 models from 2009-2014 and Acura RL models produced between 2009 and 2012.
Is the Acura J37 engine reliable?
Yes. The Acura J-series V6 engines are known for smooth performance and dependable operation when properly maintained.
What does remanufactured mean for an engine?
A remanufactured engine is completely disassembled, inspected, and rebuilt using restored or replacement components to restore reliable operation.
How long does a remanufactured Acura engine last?
With proper installation and maintenance, a remanufactured Acura engine can provide many years of reliable performance.
How do I confirm this engine fits my vehicle?
Compatibility should be verified using the vehicle VIN number, engine code, and model year before installation.
2009-2014 Acura J37A4 3.7. Left Head Cast #RKG, Right Head Cast #RKG, Block Cast #J37A4, RK2, Crank Cast #PKG – PKG.
Engine fitment can be verified with the notes and ‘Vehicle Fitment’ tab above, or with the casting numbers under ‘Additional Information’ (if applicable).
Every engine we sell is fully remanufactured to meet or exceed OEM specifications:
- Deep Clean – To start the remanufacturing process, every engine is fully disassembled and hot tanked (cast iron) or thermally cleaned (aluminum)
- Inspection – Magnaflux testing uses magnetic particles to inspect metal, checking for microscopic cracks and fissures that will cause long-term failure. All parts are visually inspected as well.
- Machining and New Parts – Deck surfaces are CNC machined and new parts are added. New parts inlcude bearings, pistons, rings, lifters, oil pump, gaskets, Viton™ valve seals, freeze plugs, galley plugs and either a new timing chain (with new tensioners) or a new timing belt (with new tensioner). If an engine has a timing-driven water pump, a new pump is installed.
- SIM Testing – Each engine is SIM tested after reassembly, with the cooling and oil systems being fully pressurized and the crank being spun at high RPM to verify compression and build quality.
Because of our rigorous remanufacturing process, we can offer the industry’s best warranties. Each engine comes with up to 7 years and 1 million miles of warranty, which can be upgraded to include Pure Care™ no-fault protection. No other engine manufacturer comes close.

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