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If you own an Acura TLX, picking the right radiator matters for dependable engine cooling and long-term reliability. A poorly matched radiator can lead to overheating, recurrent leaks, or premature failure, while the right unit restores operating temperature control and reduces maintenance headaches. This guide shortlists seven top radiator options selected for the Acura TLX and explains why they made the cut. We evaluated each candidate for construction quality, fitment accuracy, and serviceability to help you choose confidently.
Looking for other parts? See all Acura TLX parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Torchtree CU13363 Replacement Radiator for 2015–2020 Acura TLX 2.4L |  |
| Most Popular A crowd favorite that many people choose with confidence | TRQ Radiator Compatible with 2015-2020 Acura TLX 2.4L |  |
| Best Quality Built to a higher standard if you want something more solid | Mishimoto Performance Aluminum Radiator for Acura RSX (2002–2006) |  |
| Best Budget The cheapest option that still gets the job done reliably | Auto Dynasty Aluminum Radiator Compatible with Acura TL 2007–2008, 1-Row Cooling Core |  |
| Most Sold A high-volume bestseller chosen again and again | A-Premium Radiator and A/C Condenser Cooling Kit for Honda Accord 2013–2017 (2.4L / 3.5L) |  |
| Best Value for Money The sweet spot between price and what you get | KAX CU13363 Engine Cooling Radiator for 2015-2020 Acura TLX 2.4L |  |
| Best Overall The best all-around choice for most situations | Denso 221-3232 Radiator |  |
1. Torchtree CU13363 Replacement Radiator for 2015–2020 Acura TLX 2.4L
| Vehicle fitment | 2015–2020 Acura TLX 2.4L |
|---|---|
| Core thickness | 5/8 in |
| Inlet/Outlet diameter | 1-1/4 in |
| Core width | 30 in |
| Core height | 15-7/8 in |
This Torchtree CU13363 radiator is a straightforward replacement for the 2015–2020 Acura TLX 2.4L that aims to restore proper engine cooling without modifications. It installs like the factory unit, with matching inlet and outlet locations so hose and bracket alignment is simple for a professional or experienced DIYer. The radiator uses an aluminum core and high-density multi-louver fins to improve heat dissipation, and plastic end tanks to save weight and cost. Torchtree reports pressure and leak testing during production and ships the radiator with reinforced foam corner packaging to reduce transport damage. Buyers should expect factory-style fit and cooling at a lower cost than dealer parts, but the fins and plastic clips are reported by some users to feel less robust than long-running OEM pieces, and careful handling during installation is recommended. Professional installation is advised if you are not comfortable with coolant system bleeding and mounting procedures.
Best for: Reliability-focused buyers who prioritize restoring factory cooling performance on an Acura TLX 2.4L without paying dealer pricing and who prefer parts that are tested before shipment.
Less Ideal for: Owners who want an ultra-durable, heavy-duty aftermarket upgrade or who seek lifetime-long OEM-level plastic durability should consider higher-end replacements or dealer parts instead.
- Direct-fit design matched to 2015–2020 Acura TLX 2.4L for easy installation
- Aluminum core with high-density fins for improved heat transfer
- Leak and pressure tested during production to reduce early failures
- Upgraded shockproof packaging to limit shipping damage
- Plastic end tanks and clips are less durable than older factory units according to some users
Verdict A cost-effective, direct-fit replacement radiator for the Acura TLX 2.4L that restores cooling reliably but uses plastic tanks and clips that may not match long-term OEM toughness.
2. TRQ Radiator Compatible with 2015-2020 Acura TLX 2.4L
| Core Material | Aluminum |
|---|---|
| Core Row Quantity | 1 |
| Core Thickness | 0.63 in |
| Outlet Diameter | 1.25 in |
| Inlet Diameter | 1.25 in |
This TRQ radiator is a one-row aluminum-core direct-replacement built to fit the 2015–2020 Acura TLX with the 2.4L engine. It installs like a factory replacement using the same inlet and outlet locations, so it is suitable for routine cooling system repairs and full radiator swaps. Notable features include a machined aluminum core, plastic tanks, and a down-flow, single-row design that simplifies mounting and plumbing during installation. The practical benefit is a straightforward, DIY-friendly swap that can return cooling capacity to factory-like levels without modification. Limitations to consider are the single-row core thickness, which is adequate for normal driving but offers less cooling reserve than multi-row high-performance radiators, and the absence of included radiator cap, hoses, or built-in engine/transmission oil coolers, so reuse of originals or separate purchases may be required. Fitment and clear mounting points mean professional or home installation is typically quick, but buyers doing heavy towing or track use may want a higher-capacity option.
Best for: Convenience-driven buyers who want a straightforward, factory-replacement repair for their Acura TLX 2.4L with minimal hassle and quicker installation time.
Less Ideal for: Drivers who frequently tow, run the car hard on track, or need extra cooling margin should consider higher-capacity or multi-row performance radiators instead.
- Direct-fit design for 2015–2020 Acura TLX 2.4L simplifies installation
- Aluminum core improves heat transfer compared with all-plastic units
- Preassembled mounting points match factory locations to avoid modifications
- Down-flow, single-row construction keeps the unit compact and easy to handle
- Single-row core provides less cooling capacity than multi-row performance radiators
- Does not include radiator cap, hoses, or oil/transmission coolers
Verdict A convenient, direct-fit aluminum single-row radiator that restores factory cooling for the Acura TLX 2.4L but lacks the extra capacity desired for heavy-duty or performance use.
3. Mishimoto Performance Aluminum Radiator for Acura RSX (2002–2006)
| Compatibility | Acura RSX 2002-2006 |
|---|---|
| Construction | Brazed aluminum |
| Includes | High-pressure radiator cap, magnetic drain plug |
| Core | Dual core |
This Mishimoto aluminum radiator replaces the factory unit with a dual-core, brazed-aluminum design intended to lower engine temperatures and resist the common failure points of plastic-end radiators. It installs as a direct factory-quality fit with no cutting or modification required and includes a high-pressure radiator cap and magnetic drain plug for convenience during service. In real-world use the thicker aluminum core and TIG-welded tanks offer better heat rejection under sustained loads, which helps performance-oriented drivers keep temperatures stable during spirited driving or track sessions. Some owners note slightly different mounting clearances compared with stock, and the increased coolant volume can slow warm-up times with the stock thermostat. The polished finish and solid welds improve durability versus plastic tanks, but the radiator is heavier and may require minor adjustments to fan shroud or mounting hardware on some cars. For performance upgrades where thermal control is a priority, this radiator is a strong factory-replacement option.
Best for: Performance-oriented buyers who prioritize consistent cooling under hard driving and want a durable factory-replacement upgrade that reduces overheating risk.
Less Ideal for: Drivers seeking the exactest stock warm-up behavior or those unwilling to make small mounting or thermostat adjustments after installation.
- Full brazed aluminum dual-core construction improves heat rejection compared with stock
- Direct factory-quality fit designed for easy installation without cutting
- Includes high-pressure radiator cap and magnetic drain plug for maintenance
- Polished end tanks and TIG-welded seams increase durability over plastic tanks
- Higher coolant capacity can lengthen engine warm-up time with the stock thermostat
- Some minor fitment differences reported that may require slight shroud or mounting adjustments
Verdict A durable, performance-focused aluminum radiator that lowers operating temperatures and serves as a long-lasting factory-style upgrade for drivers who push their car hard.
4. Auto Dynasty Aluminum Radiator Compatible with Acura TL 2007–2008, 1-Row Cooling Core
| Vehicle compatibility | Acura TL 2007-2008 |
|---|---|
| Core material | T-6061 aluminum |
| Rows | 1 |
| Transmission oil cooler | Yes (automatic models) |
This Auto Dynasty radiator is a basic, budget-focused replacement intended to restore cooling on compatible Acura TL models. It is a one-row, full T-6061 aluminum core with a heavy-duty tank and factory-style inlet/outlet arrangement, so installation is typically a bolt-in job without drilling or modification. The single-row design and aluminum core offer good heat transfer for everyday driving and help resolve overheating from a failed original unit. Practical benefits include lighter weight for easier handling during installation and a transmission oil cooler provision for automatic models. Limitations are the one-row core itself, which is less capable of extreme-duty cooling than multi-row or performance radiators, and the product ships without installation instructions so professional or experienced DIY installation is recommended. Some buyers may also need a different radiator cap than their original unit, so double-check cap compatibility before installation.
Best for: Budget-conscious buyers who need a straightforward, factory-style radiator replacement for everyday driving on an Acura TL and prioritize cost and basic reliability over high-performance cooling.
Less Ideal for: Drivers who regularly tow, track, or operate their TL under heavy thermal load should consider a multi-row or performance-oriented radiator instead.
- Direct bolt-on fit for Acura TL 2007–2008 automatic transmission models, no drilling required
- Full T-6061 aluminum core provides good heat transfer compared with plastic-core units
- Includes a transmission oil cooler provision for automatic-equipped cars
- Lightweight construction makes handling and installation easier
- Single-row core offers more limited cooling capacity than multi-row or performance radiators
- No installation instructions provided, so professional installation is recommended
- Radiator fill cap may differ from factory cap requiring a separate purchase
Verdict A cost-minded, direct-fit aluminum radiator that restores cooling on Acura TL 2007–2008 automatict models but falls short of performance cooling demands.
5. A-Premium Radiator and A/C Condenser Cooling Kit for Honda Accord 2013–2017 (2.4L / 3.5L)
| Vehicle fitment | Honda Accord 2013-2017 L4 2.4L and V6 3.5L |
|---|---|
| Radiator inlet diameter | 1-5/16 inch |
| Radiator outlet diameter | 1-1/4 inch |
| Condenser includes drier | Yes |
This kit combines a full engine coolant radiator and an A/C condenser intended to replace factory cooling components on compatible 2013–2017 Accords. Typical use is a direct replacement during a cooling-system repair where both radiator and condenser are being renewed at once. The radiator is built to match common inlet and outlet diameters and core dimensions from the original fitment so hoses and mounting points align with stock locations, while the condenser includes a receiver drier to simplify A/C service. Practical benefits include getting both major cooling components in one package and avoiding separate sourcing for condenser hardware. Limitations are that the kit does not include transmission or engine oil coolers, and some brackets are not supplied so you may reuse factory mounting hardware or source small parts separately. Installation still requires standard shop tools and moderate mechanical skill to avoid leaks and ensure proper A/C evacuation and recharge.
Best for: Buyers who prioritize minimizing risk and downtime by replacing major cooling components together and who prefer a straightforward, factory-style repair approach.
Less Ideal for: Those seeking a complete overhaul that includes additional coolers or a ready-to-install kit with every small bracket and hardware included should consider more comprehensive assemblies or dealer-sourced parts.
- Includes both radiator and A/C condenser for a coordinated replacement
- Radiator dimensions and inlet/outlet sizes match common factory connections for straightforward hose alignment
- Condenser ships with a receiver drier to protect the A/C system during installation
- Does not include transmission or engine oil coolers
- Some mounting brackets are not provided and may need to be reused or purchased separately
Verdict A convenient two-piece replacement for Accord cooling and A/C condenser failures that favors a risk-averse buyer wanting a near-factory repair, but plan to reuse or source some mounting hardware separately.
6. KAX CU13363 Engine Cooling Radiator for 2015-2020 Acura TLX 2.4L
| Compatible vehicles | 2015-2020 Acura TLX 2.4L |
|---|---|
| Replaces part numbers | CU13363, 13363C, 2219327, 4113363 and others |
| Core construction | Aluminum core with multi-louvered fins |
| Tank material | PA66 GF30 plastic |
This KAX radiator is a direct-fit replacement intended for the 2015–2020 Acura TLX 2.4L and restores the vehicle's cooling system using a multi-louvered aluminum core and PA66 GF30 plastic tanks. It installs in the factory location and replaces the listed Acura part numbers, so professional or experienced DIY installation is straightforward when mounting points and hose diameters match. Notable features include TIG-welded seams, high-density fins for efficient heat transfer, and leak-tested construction aimed at corrosion resistance and long-term durability. The manufacturer describes reinforced packaging and testing to limit transit damage. Practical benefits for TLX owners are stable engine temperatures and an OEM-style fit without paying dealer prices. Limitations are typical of aftermarket radiators: plastic end tanks versus all-aluminum options and the recommendation for professional installation, which may add labor cost if you cannot install it yourself.
Best for: Practical optimizers who want a cost-effective, factory-style cooling replacement for a 2015–2020 Acura TLX 2.4L and prioritize reliable fitment and sensible performance over premium upgrades.
Less Ideal for: Owners seeking a high-end performance or all-aluminum racing radiator should consider aftermarket performance units instead.
- Direct replacement for Acura TLX 2.4L with matching OEM part numbers for straightforward fitment
- High-density, multi-louvered fins and aluminum core for efficient heat dissipation
- TIG-welded construction and factory leak testing aimed at long-term durability
- Reinforced shockproof packaging to reduce risk of damage in transit
- Uses plastic water tanks rather than a full-aluminum design
- Manufacturer recommends professional installation which may add labor expense
Verdict A budget-friendly, OEM-style radiator that restores cooling on the 2015–2020 Acura TLX 2.4L with reliable fitment and tested construction.
7. Denso 221-3232 Radiator
| Fuel Type | Gasoline |
|---|---|
| Fit Type | Vehicle Specific |
| OEM Part Number | 221-3232 |
| Position | Front, Rear |
This Denso radiator is a direct-fit replacement built to the manufacturer's specifications and intended to restore reliable engine cooling. It installs like a factory-quality unit and is typically used when the original radiator has failed or is leaking. Notable features include vehicle-specific fitment and a robust core construction that reviewers report improves cooling capacity versus older originals. In practice the part gives dependable, leak-free service and can be swapped in using standard removal and reinstall procedures for a TLX-sized engine bay. Some owners find fitment excellent and plug-and-play, while a small number reported minor alignment adjustments were necessary to get all fasteners and shrouds to line up. The radiator's manufacturer pedigree and focus on matching OEM form and function make it a solid choice for routine replacement, though expect occasional trimming or minor modification if your vehicle has nonstandard brackets or aftermarket components already installed.
Best for: Balanced buyers who want a reliable, factory-quality replacement radiator that restores stock cooling without chasing performance upgrades.
Less Ideal for: Drivers looking for performance-upgraded radiators or unique-fit solutions for heavily modified front ends should consider purpose-built aftermarket options instead.
- Factory-quality manufacturer with a vehicle-specific design for straightforward replacement
- Sturdy core construction that can improve cooling performance over aged originals
- Widely reported to provide leak-free operation after installation
- A few users needed minor adjustments to mounting holes or shrouds for a perfect fit
- Not guaranteed to align perfectly with vehicles that have aftermarket front-end parts or altered brackets
Verdict A dependable, factory-quality replacement radiator that restores stock cooling for compatible vehicles, with occasional minor fitment tweaks possible.
Choosing the Right Acura TLX Radiator: Key Factors to Consider
Material and Core Construction
Material choice affects heat transfer, weight, and durability. Aluminum cores are common because they conduct heat well and resist corrosion when properly treated. Multi-layer or multi-row cores increase surface area for cooling but add weight and may complicate fitment.
Consider whether the tank material is pressed aluminum, plastic, or brazed metal. Plastic tanks are lighter and cheaper but can become brittle over time, while brazed aluminum tanks are more durable but heavier. The construction dictates how well the radiator handles thermal cycling and road vibration.
Fitment and Hose Alignment
Correct inlet and outlet placement is critical for easy installation and reliable coolant flow. Even small differences in hose diameter, angle, or location can require adapter hoses or modifications.
Check mounting points, bracket locations, and clearance around the fan shroud and condenser area. A radiator that aligns precisely with existing hoses and mounts reduces installation time and minimizes the risk of stress on hoses that can lead to leaks.
Cooling Capacity and Core Size
Cooling capacity depends on core height, thickness, and fin density. Larger cores or additional rows increase heat rejection but may be heavier and require more space.
Think about your typical driving conditions. Frequent highway driving with heavy loads or hot climates benefit from higher-capacity cores. For normal commuting, a standard core sized to factory specifications usually provides sufficient cooling while keeping airflow and pressure drop in balance.
Durability and Leak Resistance
Durability hinges on joint quality, brazing, and seal integrity. Radiators must withstand pressure cycles, road debris impacts, and thermal expansion without developing leaks.
Look for consistent factory brazing or strong crimp joints and reinforcement at common stress points such as tank seams and inlet/outlet junctions. Features that reduce corrosion, like protective coatings or corrosion-resistant alloys, also extend service life and lower the chance of premature leakage.
Serviceability and Maintenance Features
Ease of maintenance can save time and reduce repair costs. Features like an accessible drain petcock, replaceable tanks, or modular mounting make routine service and future repairs simpler.
Consider whether the radiator allows for easy flushing, has accessible bleed points, and whether replacement of minor components is possible without swapping the entire assembly. Better serviceability can prolong the radiator’s useful life and simplify coolant system maintenance.
Compatibility With Cooling System Components
The radiator must work with the existing thermostat, fan assembly, shroud, and transmission cooler if present. Mismatched flow characteristics can affect thermostat behavior and transmission cooling performance.
Confirm that any integrated transmission cooler lines, sensor ports, or auxiliary fittings match the vehicle’s requirements. Proper compatibility prevents unintended stress on other cooling components and ensures consistent engine and transmission temperatures.
FAQ
How do I know when my Acura TLX radiator needs replacement?
Common signs include frequent overheating, visible coolant leaks under the vehicle, or a sweet coolant smell in the engine bay. Also watch for fluctuating temperature gauge readings, persistent low coolant levels, or rusty and sludgy coolant; these often indicate internal corrosion or failure.
Can I replace the Acura TLX radiator myself?
Many owners can perform a radiator replacement if they have basic mechanical skills and the right tools. The job typically involves draining coolant, disconnecting hoses and mounting hardware, and transferring any necessary fittings. However, working carefully to avoid air pockets in the cooling system and ensuring correct torque on mounts is important.
What should I check after installing a new radiator?
After installation, refill the cooling system with the correct coolant mix and bleed air from the system to prevent hot spots. Inspect all hose clamps and connections for tightness, run the engine to operating temperature, and verify stable temperature gauge readings and no leaks.
Is an OEM radiator necessary for an Acura TLX?
OEM radiators often match factory specifications closely, which helps with fitment and system behavior. However, many aftermarket radiators also provide equivalent or enhanced performance if they list exact fitment, correct inlet/outlet locations, and meet similar quality standards. The decision depends on your priorities for warranty, materials, and any performance goals.
How does a radiator coolant flush help radiator life?
A proper coolant flush removes sediment and corrosion products that can clog cores and reduce heat transfer. Regular flushing according to manufacturer guidelines helps maintain efficient cooling and reduces the risk of internal damage that can shorten radiator lifespan.
How We Chose the Best Acura TLX Radiator
To create this list we focused on attributes that most directly affect cooling performance and long-term reliability for the Acura TLX. Primary evaluation criteria included core construction and material (such as aluminum versus multi-layer designs), inlet and outlet placement and hose compatibility to ensure correct fitment, and overall manufacturing tolerances that influence leak resistance and sealing. We also assessed mounting point alignment and bracket quality to reduce installation headaches, cooling capacity measured by core size and fin density, and serviceability features like replaceable tanks or accessible drain ports. We excluded units with unclear fitment data, nonstandard hose configurations, or insufficient build documentation. We also filtered out radiators lacking clear warranty or quality-control information. The result is a shortlist focused on proven fitment, robust construction, and sensible serviceability for Acura TLX owners.
Our full evaluation process is outlined in our review methodology.
Conclusion
Prioritize fitment accuracy, durable construction, and sufficient cooling capacity when choosing a radiator for the Acura TLX. Accurate inlet and outlet alignment and robust mounting reduce installation issues, while material quality and core design determine long-term reliability and heat rejection. Balance serviceability and compatibility with other cooling components against any incremental performance gains. Choosing a radiator that matches the vehicle’s mechanical requirements and typical driving conditions gives the best outcome in terms of reliability and maintenance ease.
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