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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 overall The best all-around choice for most situations | Denso 221-3232 Radiator |  |
| Best Quality Built to a higher standard if you want something more solid | Go-Parts Radiator Assembly for 2013–2020 Acura TLX (2.4L) |  |
| Best Value The sweet spot between price and what you get | KAX CU13363 Engine Cooling Radiator for 2015-2020 Acura TLX 2.4L |  |
| Best Budget The cheapest option that still gets the job done reliably | DNA Motoring CU13363 Aluminum Core Radiator for 13-17 Honda Accord / 15-19 Acura TLX |  |
| Highest Rated 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 Seller A high-volume bestseller chosen again and again | DWVO Radiator Compatible with 2013–2017 Honda Accord and 2015–2020 Acura TLX (Direct Fit) |  |
1. 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.
2. Go-Parts Radiator Assembly for 2013–2020 Acura TLX (2.4L)
| Fits Engines | 2.4L L4 GAS |
|---|---|
| Compatible Years | 2013-2020 |
| OEM Part Number | 19010-5A2-A03 |
| Manufacturer | GO-PARTS |
This Go-Parts radiator is a direct bolt-on replacement for the 2.4L Acura TLX and is built to match factory fit and function. Typical installation replaces a failed or leaking radiator and restores proper engine cooling without modification. The listing emphasizes OEM-style design, VTF test fit, and ISTA-certified packaging to reduce delivery damage, which suggests attention to fitment and handling. For performance-minded buyers the radiator claims to meet or exceed OEM specifications so it should maintain stock cooling capacity under normal driving and spirited use, and the direct-fit design keeps installation simple for shops or experienced DIYers. Limitations to consider are that specific construction details like core material and cooling capacity are not listed, so buyers who need upgraded cooling for heavy track use may want a verified performance radiator; compatibility is limited to the 2.4L TLX models specified. The product includes manufacturer part references to aid verification and comes from a brand that highlights CAPA certification for some parts.
Best for: Performance-oriented owners who prioritize a high-quality, factory‑style replacement that restores reliable cooling and keeps installation simple.
Less Ideal for: Drivers seeking a purpose-built high-capacity or track-focused radiator should consider performance-specific aftermarket options instead.
- Direct bolt-on design for straightforward replacement
- Marketed to meet or exceed factory specifications for reliable cooling restoration
- VTF test fit and ISTA-certified packaging reduce fitment and shipping damage risk
- Core construction and detailed cooling capacity are not specified, limiting confidence for high-demand performance use
Verdict: A factory-style, direct-fit radiator replacement aimed at restoring reliable cooling for 2.4L Acura TLX models.
3. 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.
4. DNA Motoring CU13363 Aluminum Core Radiator for 13-17 Honda Accord / 15-19 Acura TLX
| Compatible models | 13–17 Honda Accord; 15–19 Acura TLX |
|---|---|
| Core material | T-6061 Aluminum |
| Transmission fit | Automatic & Manual Models |
| Position | Front |
This DNA Motoring radiator is a bolt-on replacement built around a full T-6061 aluminum core and reinforced PVC end tanks to restore engine cooling on 2013–2017 Honda Accord and 2015–2019 Acura TLX models. It installs like a factory-style radiator for both automatic and manual transmission variants and is typically used to replace a failed or damaged factory unit after overheating or accident damage. The tube-and-fin aluminum core increases surface area for heat dissipation and the lightweight construction makes handling and installation easier. Practical benefits include OEM-style fitment, compatibility with specified model years, and a design intended to improve cooling efficiency versus an old, clogged radiator. Reported limitations include occasional quality-control issues at the crimp joints on the tank-to-core connection and the lack of installation instructions, so professional installation is recommended for owners who want a reliable long-term result.
Best for: Budget-conscious owners looking for an inexpensive, factory-style replacement radiator to get a 2015–2019 TLX back to reliable cooling without paying for a dealer part.
Less Ideal for: Drivers seeking a long-term performance upgrade or heavy-duty cooling solution should consider higher-end multi-row or performance radiators instead.
- Full T-6061 aluminum core for improved heat transfer and reduced weight
- Direct bolt-on fitment for 2013–2017 Accord and 2015–2019 TLX with automatic and manual transmissions
- Tube-and-fin design increases surface area for more efficient cooling
- Lightweight construction simplifies handling during replacement
- Plastic end tanks with metal crimps have occasional quality-control failures reported
- No installation instructions included, so installer experience is helpful
Verdict: An affordable, direct-fit aluminum-core replacement that restores cooling for specified TLX/Accord models without major modification.
5. 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.
6. 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.
7. DWVO Radiator Compatible with 2013–2017 Honda Accord and 2015–2020 Acura TLX (Direct Fit)
| Manufacturer | DWVO |
|---|---|
| Model | Radiator |
| Item model number | 13-17 Accord |
| OEM Part number | HO3010234, 190105A2A01, 190105A2A02 |
| Item Weight | 9 pounds |
This DWVO complete radiator is a direct replacement intended to fit specified Accord and Acura TLX 2.4L applications and restore the vehicle cooling system to factory-style operation. It is built with an aluminum core, TIG-welded fittings, PA66 GF30 inlet/outlet tanks, and a brass transmission cooler where applicable, all aimed at maintaining coolant flow and heat dissipation. Typical use is a full radiator swap when the original is leaking, clogged, or damaged; the unit ships with foam protection and a user manual but no radiator cap. Buyers will appreciate the high-density multi-louvered fins for improved cooling efficiency and treated coating for corrosion resistance. Installation is best handled by a professional to ensure proper sealing and system bleed; the product omits a cap and may require confirmation of OEM part numbers for exact fit. While many buyers report trouble-free replacements, there are occasional reports of defects or clogging so inspect the core before installation and pressure-test after fitting.
Best for: Risk-averse mainstream buyers seeking a factory-style replacement to restore cooling reliability on an Acura TLX 2.4L and who prioritize matching OEM fit and proven repairability.
Less Ideal for: Drivers looking for performance upgrades, custom cooling solutions, or a plug-and-play kit that includes every accessory should consider other options.
- Direct-fit design that uses listed OEM part numbers for simplified replacement
- Aluminum core with high-density multi-louvered fins for improved heat dissipation
- TIG-welded connections and PA66 GF30 tanks for stronger joints and durability
- Includes brass transmission oil cooler and protective coating to resist corrosion
- Radiator cap is not included so an existing or replacement cap is required
- Some buyers reported arriving units with blockages or defects requiring replacement
Verdict: A direct-fit, factory-style replacement radiator built to restore cooling performance on covered Acura TLX 2.4L applications.
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.
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.
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.
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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