Note: This article contains affiliate links. If you click on these links and make a purchase, I may earn a small commission at no extra cost to you. This helps support my research and content. Read my full affiliate disclosure here.
Choosing the right Acura TLX headlight assembly matters for visibility, safety, and maintaining vehicle appearance. A correct-fit assembly restores proper beam pattern and helps prevent glare while ensuring the headlight integrates with the vehicle's mounting points and electrical connectors.This guide covers our shortlist of top headlight assemblies chosen for the Acura TLX. We evaluated each option for fit accuracy, beam quality, construction, and ease of installation to help you pick the best replacement for your needs. Read on to see what criteria mattered and which features to prioritize before you replace a headlight assembly.
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 | Go-Parts Right Front LED Headlight Assembly for Acura TLX (2015–2017) |  |
| Best quality Built to a higher standard if you want something more solid | KarParts360 Headlight Assembly Pair for Acura TLX (2015–2017) |  |
| Best Value The sweet spot between price and what you get | KarParts360 Headlight Assembly for Acura TLX (Left/Driver Side) |  |
| Best Budget The cheapest option that still gets the job done reliably | TYC Right Headlight Assembly for 2015-2017 Acura TLX |  |
| Highest Rated A top-rated pick with lots of positive feedback | CarLights360 Driver-Side Headlight Assembly for Acura TLX (2015–2017) |  |
| Most Popular A crowd favorite that many people choose with confidence | CarLights360 Headlight Assembly Pair for 2015–2017 Acura TLX |  |
| Best Seller A high-volume bestseller chosen again and again | CONCEPT Automotive Lights Headlight Assembly for Acura TLX (Left/Driver) with DRL |  |
1. Go-Parts Right Front LED Headlight Assembly for Acura TLX (2015–2017)
| Position | Front Right |
|---|---|
| Bulb Type | LED |
| Manufacturer Part Number | AC2503127-900203310-OGP-AMZN |
| OEM Part Number | 33100-TZ3-A01 |
This Go-Parts headlight assembly replaces the right (passenger) lamp on 2015–2017 Acura TLX sedans and uses LED light technology for the primary illumination. It is intended as a direct bolt-on aftermarket replacement that meets DOT/SAE and FMVSS-108 safety standards, so installation is typically a straightforward swap for owners with standard wiring. The listing calls out OEM-style fit and ISTA-certified packaging to reduce transit damage, and the unit is offered as a waterproof, vehicle-tested part. Important caveats: some TLX variants with adaptive lighting or automatic leveling may have additional wiring that this assembly does not include, so comparing the existing harness is necessary before ordering. Buyers should also expect this to be an aftermarket replacement rather than a factory-sourced lamp, which can mean small cosmetic or connector differences despite guaranteed fit claims. For routine replacement on standard-equipped TLX models this headlight delivers a practical, factory-replacement style solution with LED performance.
Best for: Balanced all-round buyers who want a reliable, OEM-style aftermarket replacement for routine headlight repair on a 2015–2017 Acura TLX and value ease of installation and safety compliance.
Less Ideal for: Owners who require parts for TLX models with adaptive lighting or automatic leveling, or those seeking an original factory-sourced unit with guaranteed identical connectors and cosmetics.
- Direct bolt-on design for straightforward installation on specified TLX models
- Uses LED light technology for brighter, more efficient illumination
- DOT/SAE and FMVSS-108 compliance for street-legal safety
- Waterproof construction and ISTA-certified packaging reduce risk of damage during handling
- May lack wiring or connectors for adaptive lighting or automatic leveling systems present on some TLX variants
Verdict: A practical, DOT-compliant LED right headlight assembly that fits 2015–2017 Acura TLX models as a straightforward aftermarket replacement, but check wiring if your car has adaptive features.
2. KarParts360 Headlight Assembly Pair for Acura TLX (2015–2017)
| Vehicle Fit | Acura TLX 2015-2017 |
|---|---|
| Includes | Pair with bulbs, lens, housing, socket |
| Certification | DOT Certified |
| Special Feature | Waterproof |
This KarParts360 headlight assembly pair is a direct aftermarket replacement for the Acura TLX 2015–2017, sold as matching driver and passenger units. It arrives factory sealed with lens, housing, sockets, and bulbs included, so installation typically involves swapping the old assemblies and reconnecting the wiring harness. The housings are water resistant and DOT certified, which helps maintain road-legal beam patterns and durability in wet conditions. Because the pair is matched, you get an even appearance and consistent light output across both sides. Important limitations are that this is an aftermarket unit rather than a factory-manufactured part, so finish may be unfinished and fit can require minor alignment during installation; buyers should confirm the OEM or Partslink numbers before purchase. For drivers seeking a high-quality replacement that restores full headlight functionality and a uniform look, these assemblies offer a practical balance of completeness and compliance.
Best for: Performance-oriented buyers who prioritize restoring factory-level lighting performance and consistent beam output across both sides while accepting aftermarket upgrades.
Less Ideal for: Buyers who require an exact factory-manufactured part or a cosmetically finished unit straight from the vehicle manufacturer should consider OEM replacements instead.
- Sold and shipped as a matched pair for consistent appearance and beam output
- Includes bulbs, lens, housing, and sockets so no need to buy separate components
- DOT certified and waterproof design supports legal beam performance and durability in wet conditions
- Aftermarket product not manufactured by the vehicle maker, so finish is listed as unfinished and may differ from factory parts
- May require minor adjustment during installation to achieve perfect alignment
Verdict: A complete, DOT-certified aftermarket pair that restores consistent, road-legal lighting to the Acura TLX while offering a high-quality replacement alternative to a factory unit.
3. KarParts360 Headlight Assembly for Acura TLX (Left/Driver Side)
| Vehicle Fit | Acura TLX 2015-2017 |
|---|---|
| Position | Driver Side (Left) |
| Certification | DOT Certified |
| Special Feature | Waterproof |
This KarParts360 headlight assembly is a direct aftermarket replacement for the Acura TLX driver-side lamp, sold as a complete unit with lens, housing and sockets. It installs where the factory unit did and is intended for owners replacing a damaged or failed headlight without sourcing individual bulbs or parts. The assembly is described as waterproof, DOT certified and factory-sealed new in box, which supports road-legal use and weather resistance. Because it matches the OEM part and partslink numbers, fitment should be straightforward for the specified model years. Expect typical benefits of a full assembly swap: quicker installation, no headlight aiming or separate bulb matching when done correctly, and a single purchase that resolves multiple component failures. The main limitation is that this is an aftermarket part rather than a factory-produced unit, so finish and exact internal optics may differ from a factory piece and could affect long-term color-match or resale appearance for perfectionist owners.
Best for: Buyers who prioritize practical value and a one-stop replacement solution that gets their Acura TLX back on the road quickly without sourcing multiple components.
Less Ideal for: Drivers seeking an exact factory-produced match for showroom appearance or collectors who require OEM provenance should consider a factory replacement instead.
- Complete assembly includes lens, housing and sockets for a one-piece replacement
- Described as DOT certified and waterproof for legal use and weather protection
- Vehicle-specific fit for Acura TLX 2015–2017 simplifies installation and reduces fitment guesswork
- Aftermarket construction so finish and internal optics may not perfectly match factory-original parts
Verdict: A cost-effective, vehicle-specific full headlight assembly that simplifies replacement for TLX owners who want a practical, ready-to-install solution rather than an exact factory original.
4. TYC Right Headlight Assembly for 2015-2017 Acura TLX
| Light Source | LED |
|---|---|
| Additional Features | Waterproof |
| Auto Part Position | Right |
| Automotive Fit Type | Vehicle Specific Fit |
This TYC right headlight assembly is a direct-fit replacement designed for the 2015–2017 Acura TLX and installs without complicated wiring changes thanks to an OE-comparable harness and factory-style mounting points. It uses LED as the listed light source and a plastic lens with a special coating to resist hazing, so it should maintain usable illumination and appearance over time. The unit is water resistant and built to meet DOT/SAE photometric standards, which makes it suitable for daily driving and safety-critical use. Expect straightforward bolt-in installation for owners doing a DIY swap or for quick shop fitment. The main compromises are that the listing does not detail beam pattern tuning or internal adjuster quality and the materials are replacement-grade rather than branded factory trim, so finish fit and long-term matching to an original assembly may vary. For buyers prioritizing cost and correct fitment on a TLX, this provides a practical, compliant replacement option.
Best for: Budget-conscious TLX owners who want a correct-fit, do-it-yourself replacement that restores functionality without paying for a dealer assembly.
Less Ideal for: Buyers seeking a perfect factory-matched finish or highest-end OEM materials for show or concours restoration should consider dealer or premium options instead.
- Vehicle-specific drop-in fit with OEM-comparable harness for simple installation
- Listed LED light source and DOT/SAE compliance for road-legal illumination
- Waterproof construction and lens coating to resist hazing and moisture intrusion
- Replacement-grade plastics and finish may not match factory appearance exactly
Verdict: A cost-focused, vehicle-specific right headlight assembly that restores legal illumination and fit for 2015–2017 Acura TLX owners.
5. CarLights360 Driver-Side Headlight Assembly for Acura TLX (2015–2017)
| Vehicle fit | Acura TLX 2015-2017 |
|---|---|
| Position | Driver Side |
| Includes | Bulbs, lens, housing, socket |
| Certification | CAPA |
| Special feature | Waterproof |
This CarLights360 driver-side headlight assembly is a direct aftermarket replacement made to match the factory fit and function for Acura TLX models from 2015 to 2017. It arrives factory-sealed and includes bulbs, lens, housing, and socket so installation replaces the entire unit without sourcing separate lamps. The assembly is CAPA certified and described as waterproof, which supports reliable performance in wet conditions and everyday driving. Buyers will appreciate the vehicle-specific design intended to simplify swap-in replacement and restore proper beam alignment and signaling. Because it is aftermarket rather than manufacturer-sourced, finish and exact materials may differ from factory units, and buyers should confirm the OEM or Partslink number before ordering to ensure fit. Expect typical benefits of a full assembly replacement—simpler installation and restored lighting—while understanding this is an aftermarket component rather than a factory-made part.
Best for: A reliability-focused buyer who prioritizes restoring proper headlight function with a vehicle-specific replacement that simplifies installation and reduces downtime.
Less Ideal for: Drivers seeking a factory-manufactured OEM headlight or an exact cosmetic match to original trim should consider dealer-sourced replacements instead.
- Direct replacement designed to match original component specifications for the Acura TLX 2015–2017
- Ships as a complete assembly including bulbs, lens, housing, and socket for easier installation
- CAPA certified indicating it passed independent aftermarket quality checks
- Waterproof construction supports reliable performance in rain and wet road conditions
- Aftermarket unit not manufactured by the vehicle maker so materials and finish may differ from factory parts
- Fitment verification required by matching OEM or Partslink number before purchase
Verdict: A practical, CAPA-certified aftermarket headlight assembly that restores function and simplifies replacement for reliability-minded Acura TLX owners.
6. CarLights360 Headlight Assembly Pair for 2015–2017 Acura TLX
| Compatible Vehicle Type | Car |
|---|---|
| Light Source | LED |
| Voltage | 12 |
| Auto Part Position | Front |
| Lens Material | Polycarbonate |
These CarLights360 headlight assemblies are a vehicle-specific aftermarket replacement for the 2015–2017 Acura TLX that come sold as a driver and passenger pair with bulbs included. They are designed to match the factory fit and function so installation is straightforward for a convenient swap-out, and the DOT certification indicates the optics meet regulatory standards for road use. The housings use polycarbonate lenses and claim durable construction intended for everyday driving; including sockets and bulbs saves time hunting compatible parts. Because this is an aftermarket unit rather than a factory part, finish and long-term fitment can vary compared with a factory replacement and buyers should verify OEM part numbers before ordering. These headlights are best for owners who want a quick, bundled replacement that restores lighting without accessory sourcing or extensive modification.
Best for: Convenience-driven buyers who want a ready-to-install, vehicle-specific headlight pair that restores factory-style lighting without sourcing separate bulbs or components.
Less Ideal for: Those seeking exact factory-original parts from the vehicle manufacturer or buyers prioritizing long-term OEM-matched finish and fit should consider factory-quality replacements.
- Sold as a matching driver and passenger pair so both sides can be replaced at once
- Includes bulbs, sockets, and hardware for a one-stop installation
- DOT certified optics for compliant on-road use
- Polycarbonate lens and durable construction aimed at everyday reliability
- Aftermarket product not manufactured by the vehicle maker so fit and finish may differ from factory parts
- Item weight and packaging indicate a bulky unit that may require two-person handling during installation
Verdict: A convenient, DOT-certified aftermarket headlight pair for 2015–2017 Acura TLX that includes bulbs and hardware for straightforward replacement.
7. CONCEPT Automotive Lights Headlight Assembly for Acura TLX (Left/Driver) with DRL
| Vehicle fit | Acura TLX 2015-2017 |
|---|---|
| Position | Front Left |
| Compliance | DOT/SAE Compliant |
| Special features | DRL, Waterproof |
This headlight assembly replaces the left/front unit on 2015–2017 Acura TLX models and arrives as a plug-and-play replacement that includes bulbs, lens, housing, and socket. It is intended for straightforward installation using the factory-style harness so no wiring changes are normally required. Notable features include daytime running lights, DOT/SAE compliance, and a UV-resistant plastic lens aimed at retaining clarity over time. In real-world use this means restored factory illumination and appearance without modifying the vehicle electrical system, and the included bulbs let you drive immediately after install. Limitations to consider are that installation instructions are not provided and some buyers may prefer a dealer or professional install to ensure beam aim and sealing. The product carries a one-year limited warranty and a short return window which gives added reassurance for cautious buyers.
Best for: Risk-averse mainstream buyers seeking a factory-style replacement that restores original appearance and function without electrical modifications.
Less Ideal for: Buyers looking for custom or performance lighting upgrades or those who want a bilateral replacement kit in a single purchase should consider other options.
- Vehicle-specific fit for 2015–2017 Acura TLX left/front side for direct replacement
- Includes bulbs, lens, housing, and socket so the assembly is ready to install
- DOT/SAE compliant and features daytime running lights for legal and safer on-road use
- UV-resistant plastic lens designed to resist yellowing and maintain clarity
- No printed installation instructions included which may complicate DIY installs
- Only left/driver side is supplied so right-side replacement requires a separate purchase
Verdict: A ready-to-install, vehicle-specific left headlight for Acura TLX owners who want a factory-style replacement with DRL and included bulbs.
Choosing the Right Acura TLX Headlight Assembly: Key Factors to Consider
Fit and Mounting Compatibility
A headlight assembly must align precisely with the vehicle's factory mounting points to ensure correct aiming and secure attachment. Poor fit can lead to misaligned beam patterns, excessive vibration, and difficulty sealing the assembly against moisture.
Verify that the assembly matches the Acura TLX year and trim-specific mounting arrangements and connector types. Fit affects installation time and whether additional brackets or adapters are required.
Beam Pattern and Light Output
Beam pattern determines where light is projected on the road and how much glare is directed toward other drivers. Look for assemblies designed to reproduce the OEM beam cutoff and spread to maintain safe, legal illumination.
Light output affects visibility at night and in poor weather. Consider assemblies that support the bulb types you intend to use and check for even, well-defined beam edges rather than scattered or uneven illumination.
Lens Material and Seal Quality
Lens materials and the quality of the assembly's seals influence longevity and performance. Polycarbonate lenses are common but vary in UV resistance and scratch coating, which affects how quickly they yellow or haze.
Good gasket and seam sealing prevents moisture and dirt intrusion that can fog the interior and degrade reflectors. Durable coatings and tight seals reduce the need for early replacement.
Electrical Compatibility and Bulb Support
Ensure the assembly's wiring harness and connectors match the Acura TLX factory sockets and that the unit supports the intended bulb type. Differences in connectors can require splicing or adapter use, which adds complexity and potential failure points.
If you plan to use LED or high-performance bulbs, confirm the assembly's reflector or projector design is suitable for that bulb type to avoid poor beam control or flicker.
Construction and Reflector Quality
The reflector or projector components inside the assembly determine how efficiently and accurately light is directed. High-quality reflectors provide consistent reflection angles and resist corrosion or coating breakdown.
Inspect construction details such as fastener robustness, alignment tabs, and internal coatings. Sturdy components reduce vibration-related wear and help maintain beam alignment over time.
Installation Ease and Serviceability
Some assemblies are designed for quick bolt-on installation while others require partial disassembly of surrounding trim. Consider whether the unit includes necessary clips, mounting hardware, and clear instructions.
Serviceability matters if bulbs or components will be replaced in the future. Assemblies that allow bulb access without removing the entire unit save time and reduce the risk of damaging surrounding panels.
How We Chose the Best Acura TLX Headlight Assembly
We focused on criteria that directly affect real-world performance and long-term value for Acura TLX headlight assemblies. Primary filters included fit and mounting accuracy to factory attachment points, beam pattern and light output to ensure proper roadway illumination and minimal glare, and lens clarity and materials to resist yellowing and moisture intrusion. We also evaluated electrical compatibility and connector type to minimize wiring changes, construction quality including seal integrity, and whether bulbs or adaptive features are supported.Excluded items included universal or heavily modified assemblies that require major fabrication, assemblies listed only for use with nonstandard bulbs, and products with insufficient documentation for fitment on the Acura TLX. The final picks balance reliable fit, proven materials, and clear documentation so you can expect a straightforward replacement process and predictable optical performance.
Our full evaluation process is outlined in our review methodology.
FAQ
How do I confirm a headlight assembly will fit my Acura TLX?
Check the product listing for specific year and trim compatibility and compare the connector type and mounting point diagrams to your vehicle. Look for documentation showing factory mounting hole locations and electrical plug matches. When in doubt, verify with the supplier's fitment notes or vehicle-specific diagrams.
Can I replace just the lens instead of the whole headlight assembly?
Lens replacement can be an option if the housing and reflector are undamaged and the lens is a separate service part. However, many modern assemblies are sealed units, and replacing only the lens may not restore proper sealing or optical alignment. Assess the extent of damage and sealing requirements before choosing that route.
Will switching to LED bulbs work with a standard Acura TLX headlight assembly?
LED bulbs can work, but compatibility depends on the assembly's optical design and heat management. Projector-style housings often handle different light sources better than simple reflectors. Confirm the assembly supports the bulb type and that wiring or ballast requirements are met to avoid flicker or improper beam pattern.
How can I prevent headlight lenses from yellowing after installation?
Choose assemblies with UV-resistant coatings on the lens and ensure seals are properly seated to keep moisture out. Regular cleaning with appropriate, nonabrasive cleaners and parking out of prolonged direct sunlight when possible can also slow yellowing. Recoating or professional restoration are options if yellowing begins.
Do I need to aim the headlights after installing a new assembly?
Yes, new assemblies typically require aiming to ensure the beam pattern is correct and to avoid blinding other drivers. Follow vehicle-specific aiming procedures or use a level surface and wall to align the cutoff. Proper aiming ensures legal and effective illumination.
Conclusion
Prioritize fitment accuracy and beam quality when choosing an Acura TLX headlight assembly because those factors most directly affect safety and everyday usability. Also weigh lens material and seal quality to reduce long-term maintenance and ensure consistent optical performance.Accept that there are tradeoffs between ease of installation and advanced optical features. Choose the assembly that offers the right balance of correct fit, compatible bulb support, and durable construction for the way you use the vehicle.
Explore More:
- Check out all Acura TLX parts & accessories
- Explore Headlight Assemblies Maintenance & Repair Guides
- Explore Lighting
- Browse all Auto Parts
