6 Best Tail Light Assemblies for Infiniti Q50: Reliable Fit And Brighter Rear Lighting

Mike
By Mike
Certified Professional Automotive Mechanic – Owner and Editor of VehicleRuns
Last Updated: June 19, 2026

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If you need to replace or upgrade the Infiniti Q50 tail light assembly, picking the right unit matters for safety, legal compliance, and vehicle appearance. You want parts that install cleanly, match the car's contours, and provide consistent illumination for braking, signaling, and nighttime driving. This guide highlights the top six shortlisted assemblies for the Infiniti Q50 and explains the key factors we evaluated, including fitment and light output. Read on to find the options that balance reliability, ease of installation, and long-term durability.

Top Picks at a Glance

BIXIBIN LED Outer Tail Light Assembly for 2014-2017 Infiniti Q50 (Left & Right)BIXIBIN LED Outer Tail Light Assembly for 2014-2017 Infiniti Q50 (Left & Right)
Best Quality
Built to a higher standard if you want something more solid
TYC Right Tail Light Assembly for 2016-2017 Infiniti Q50TYC Right Tail Light Assembly for 2016-2017 Infiniti Q50
Best Value
The sweet spot between price and what you get
KAHYKLQI Left Tail Light Assembly for 2014–2017 Infiniti Q50/Q50s (Driver Side)KAHYKLQI Left Tail Light Assembly for 2014–2017 Infiniti Q50/Q50s (Driver Side)
Best Budget
The cheapest option that still gets the job done reliably
Beuioslyr Rear Outer Tail Light Assembly for 2014-2017 Infiniti Q50 (Left Driver)Beuioslyr Rear Outer Tail Light Assembly for 2014-2017 Infiniti Q50 (Left Driver)
Highest Rated
A top-rated pick with lots of positive feedback
HinLIaDa Right Rear Tail Light Assembly for Infiniti Q50 (2014–2017)HinLIaDa Right Rear Tail Light Assembly for Infiniti Q50 (2014–2017)
Best Seller
A high-volume bestseller chosen again and again
LOYALHEARTDY Left Rear Tail Light Assembly for 2014–2017 Infiniti Q50LOYALHEARTDY Left Rear Tail Light Assembly for 2014–2017 Infiniti Q50

1. BIXIBIN LED Outer Tail Light Assembly for 2014-2017 Infiniti Q50 (Left & Right)

BIXIBIN LED Outer Tail Light Assembly for 2014-2017 Infiniti Q50 (Left & Right)
Best Overall
A vehicle-specific LED outer tail light assembly that replaces the factory unit on 2014–2017 Infiniti Q50 models and provides brake, reverse, turn and parking functions with included bulbs.
Applicable Model2014-2017 Infiniti Q50 Q50s
Voltage12V
MaterialPC
Light Source TypeLED
Placement on VehicleRear Outer

This BIXIBIN outer tail light assembly is a direct-replacement LED unit designed for 2014–2017 Infiniti Q50 and Q50s models. It installs as a plug-and-play assembly intended to swap into the rear outer position without modifications and supplies parking/brake, reverse, and turn signal lighting with bulbs included. The LED light source and impact-resistant PC construction with a grey housing and red lens aim to improve nighttime visibility while resisting cracking and fading from road exposure. Because it is vehicle-specific and described as waterproof, it is suitable for daily drivers who want a like-for-like replacement that looks and functions like the factory part but with LED clarity. Expect a straightforward install if you have basic mechanical skills, though professional installation is recommended to ensure fit and sealing. Limitations include reliance on the included bulbs rather than a direct plug-in LED retrofit for every circuit and the product being offered as an aftermarket option rather than a factory part.

Best for: Balanced buyers who want a reliable, like-for-like replacement that improves visibility and lasts through normal use without chasing OEM rare parts.

Less Ideal for: Drivers seeking exact factory-sourced parts or those who want a full LED module retrofit that replaces all bulb functions with high-end aftermarket LED modules should look elsewhere.

Pros:
  • Vehicle-specific fit for 2014–2017 Infiniti Q50 and Q50s for straightforward replacement
  • LED light source improves brake, reverse, and turn signal visibility
  • Impact-resistant PC construction and waterproof design for durability
  • Comes with bulbs included so the assembly is ready to install
Cons:
  • Aftermarket assembly may require professional installation to guarantee perfect fit and sealing
  • Includes bulbs rather than full factory-style LED modules for every circuit

Verdict: A durable, vehicle-specific LED tail light assembly that offers improved visibility and a near‑factory replacement for 2014–2017 Infiniti Q50 owners.

2. TYC Right Tail Light Assembly for 2016-2017 Infiniti Q50

TYC Right Tail Light Assembly for 2016-2017 Infiniti Q50
Best Quality
A factory-replacement right tail light assembly designed to meet DOT/SAE safety standards for the 2016–2017 Infiniti Q50.
Specific Uses For ProductTail Light
Compatible with Vehicle TypeCar
Additional FeaturesWaterproof
Auto Part PositionRight

This TYC right tail light assembly is a direct-fit replacement for the 2016–2017 Infiniti Q50 that aims to match factory fit and function. It includes an OE-comparable harness and mounting provisions so installation is a bolt-in affair for owners replacing a damaged lens or restoring rear lighting performance. The assembly is built to meet DOT and SAE photometric standards and TYC says the lens has a special coating to resist hazing and fading, which helps preserve brightness over time. Waterproofing and accelerated cycling tests indicate the unit is intended for long-term road use rather than a short-term fix. The practical benefit is a reliable, safety-compliant replacement that restores proper illumination and signaling without needing wiring modifications. Limitations are typical of aftermarket lamps: finish and optical nuance may differ slightly from factory-new Infiniti parts and buyers wanting an exact factory match or branded Infiniti part may prefer a dealer unit.

Best for: Performance-oriented buyers focused on restoring or maintaining reliable lighting and vehicle safety with a high-quality, factory-style replacement rather than cost-focused parts.

Less Ideal for: Buyers who require a factory-branded Infiniti part for exact visual match or for warranty/brand preference should consider dealer-sourced assemblies instead.

Pros:
  • Direct-fit design with OE-comparable harness for plug-and-play installation
  • Meets DOT and SAE standards for photometric and safety compliance
  • Lens coating resists hazing and fading to maintain illumination over time
  • Waterproof construction and cycling tests improve long-term durability
Cons:
  • Aftermarket finish and optical details may not perfectly match Infiniti factory parts
  • Not branded Infiniti so some buyers may prefer an OEM-sourced assembly

Verdict: A high-quality, DOT/SAE-compliant replacement tail light that restores factory-style fit and long-term illumination for the 2016–2017 Infiniti Q50.

3. KAHYKLQI Left Tail Light Assembly for 2014–2017 Infiniti Q50/Q50s (Driver Side)

KAHYKLQI Left Tail Light Assembly for 2014–2017 Infiniti Q50/Q50s (Driver Side)
Best Value
A direct-replacement left tail light assembly made for 2014–2017 Infiniti Q50/Q50s that includes bulbs and a red ABS plastic lens and housing.
Compatible Years2014-2017
PlacementLeft rear outer
Lens MaterialPlastic
Fit TypeDirect Replacement
Included Components1x Tail Light left, bulbs included

This KAHYKLQI left tail light is a vehicle-specific direct replacement for 2014–2017 Infiniti Q50 and Q50s models. It arrives as a complete outer rear assembly with bulbs preinstalled and a red ABS plastic lens and housing, so installation is plug-and-play for DIYers or technicians replacing a damaged unit. The part lists multiple interchange numbers that match factory fitment and the mounting points and connectors are designed to align with the original, which makes the swap straightforward and saves time in the garage. The housing is described as impact resistant with adhesive sealing intended to keep out moisture and dust, which helps long-term reliability. Expect a finish and beam pattern similar to factory pieces though this is a third-party brand rather than an Infiniti part. Because the listing provides limited manufacturer warranty information and only a small number of customer reviews, buyers who prioritize full OEM backing or long-term coverage may want to confirm return options before purchase.

Best for: A practical optimizer who wants a cost-effective, ready-to-install tail light that restores full function quickly without expensive dealer parts or complex modification.

Less Ideal for: Buyers who require factory-backed warranty support or prefer purchasing directly from Infiniti should consider dealer or OEM-sourced units instead.

Pros:
  • Direct vehicle-specific fit for 2014–2017 Infiniti Q50/Q50s for easy installation
  • Ships as a complete assembly with bulbs preinstalled for plug-and-play replacement
  • ABS plastic lens and impact-resistant housing designed to resist road exposure
  • Multiple listed interchange part numbers matching factory part references
Cons:
  • Manufacturer warranty coverage is not provided in the product details

Verdict: A ready-to-install, vehicle-specific left tail light that restores factory fit and function at a practical price.

4. Beuioslyr Rear Outer Tail Light Assembly for 2014-2017 Infiniti Q50 (Left Driver)

Beuioslyr Rear Outer Tail Light Assembly for 2014-2017 Infiniti Q50 (Left Driver)
Best Budget
Aftermarket left-side rear outer tail light assembly designed as a direct replacement for 2014–2017 Infiniti Q50 and Q50s models.
Light SourceHalogen
Auto Part PositionRear
Additional FeaturesWaterproof
Lens MaterialPlastic
Bulbs IncludedYes

This Beuioslyr tail light is a budget-focused direct replacement for the left outer rear lamp on 2014–2017 Infiniti Q50 and Q50s vehicles. It arrives as a complete outer assembly with bulbs included and uses halogen light source and ABS plastic construction to provide a waterproof, impact-resistant housing intended for long service life. Typical use is straightforward swap-in replacement for a damaged or worn factory unit; the listing states direct-fit design and includes common interchange part numbers to match the vehicle. Practical benefits include low cost, included bulbs so you can reinstall quickly, and a weather-sealed lens to resist moisture. Limitations are that this is an aftermarket part from a lesser-known brand so finish and exact fit may need minor adjustment during installation and professional installation is recommended if you are not experienced. Overall it is a sensible budget replacement when you need a working tail lamp without paying OEM prices.

Best for: Budget-conscious Infiniti Q50 owners who want an inexpensive, functional replacement tail lamp to restore exterior lighting without paying for factory parts.

Less Ideal for: Buyers seeking exact factory finish, certified OEM components, or a plug-and-play replacement without any fitting or professional installation should consider factory options instead.

Pros:
  • Direct replacement fitment listed for 2014–2017 Infiniti Q50/Q50s
  • Includes bulbs for immediate installation
  • Waterproof housing to protect against moisture
  • ABS plastic construction marketed as durable and impact-resistant
Cons:
  • Aftermarket brand may require minor adjustment for perfect fit and finish
  • Installation manual not included and professional installation is recommended

Verdict: A low-cost, direct-replacement rear outer tail light that restores function and keeps repair expenses down for 2014–2017 Infiniti Q50 owners.

5. HinLIaDa Right Rear Tail Light Assembly for Infiniti Q50 (2014–2017)

HinLIaDa Right Rear Tail Light Assembly for Infiniti Q50 (2014–2017)
Highest Rated
A direct-replacement right outer tail light assembly with LED lighting designed for 2014–2017 Infiniti Q50 models.
Applicable Model2014-2017 Infiniti Q50 Q50s
Light Source TypeLED
Voltage12V
Way of UseDirect Replacement

This HinLIaDa right outer tail light is a plug-and-play replacement for 2014–2017 Infiniti Q50 models that combines an LED light source with a durable polycarbonate housing. It installs in the vehicle's outer passenger-side rear and includes bulbs for parking/brake, reverse, and turn signal functions so the car is road-ready after fitting. The unit is described as waterproof and made via injection molding, which should help resist moisture and road debris while preserving light transmission in poor weather. Because it is a direct replacement, the assembly is useful for repairing damage after a collision or refreshing a faded lens without modifying the car. Expect a straightforward swap if you have basic installation experience, though the manufacturer recommends professional installation. The main limitations are that it is an aftermarket part rather than a factory-branded assembly and color or finish may vary slightly from the original, so visual matching may not be perfect for concours-level concerns.

Best for: Reliability-focused buyers who prioritize restoring safe, fully functional lighting on their Infiniti Q50 with a straightforward replacement rather than sourcing a factory-branded assembly.

Less Ideal for: Buyers seeking an exact factory-match cosmetic finish or collectors who need original manufacturer parts should consider alternatives.

Pros:
  • Designed specifically to fit 2014–2017 Infiniti Q50 outer right position for direct replacement
  • LED light source improves visibility and signal clarity at night
  • Polycarbonate housing and injection-molded construction claim water resistance and impact durability
  • Includes bulbs for brake/parking, reverse, and turn signals so no separate purchases required
Cons:
  • Aftermarket unit rather than factory-branded part so exact color/finish may differ from the original
  • Installation instructions are not included and professional installation is recommended

Verdict: A practical, waterproof LED tail light assembly made to directly replace the right outer unit on 2014–2017 Infiniti Q50s for drivers who value reliable, straightforward repairs.

6. LOYALHEARTDY Left Rear Tail Light Assembly for 2014–2017 Infiniti Q50

LOYALHEARTDY Left Rear Tail Light Assembly for 2014–2017 Infiniti Q50
Best Seller
Aftermarket left outer rear tail light assembly designed as a direct replacement for 2014–2017 Infiniti Q50 and Q50s vehicles that uses halogen bulbs and a polycarbonate lens.
Compatible with Vehicle Type2014 2015 2016 2017 Infiniti Q50 Q50s
Light SourceHalogen
Voltage12 Volts
Wattage15 watts
Auto Part PositionRear Outer

This LOYALHEARTDY tail light is a direct-replacement left outer rear assembly for 2014–2017 Infiniti Q50/Q50s that comes with bulbs and a red polycarbonate lens. It installs in place of the factory unit and is intended for drivers who need a like-for-like swap after damage or bulb failure. The lamp uses halogen bulbs at 12 volts and 15 watts, so electrical compatibility with the stock wiring is straightforward and bulbs are easy to source. The housing and lens are marketed as durable and dust- and moisture-resistant, and several owners report an easy DIY install with a good fit. Downsides to note are small cosmetic differences from factory parts reported by some users, such as a slightly darker red tint or LED appearance mismatch when compared to the passenger side, and the listing does not include an installation manual so professional help may be needed if you are not comfortable with vehicle electrical work. Overall it is a practical, budget-friendly replacement that preserves factory appearance and function for risk-averse buyers.

Best for: Risk-averse mainstream buyers who want a straightforward, factory-style replacement part that restores stock appearance and function without aftermarket modifications.

Less Ideal for: Buyers seeking an exact OEM match in every cosmetic detail or those wanting upgraded LED or performance lighting features should consider other options.

Pros:
  • Direct-replacement fit for 2014–2017 Infiniti Q50/Q50s left outer tail light
  • Includes bulbs and matches factory electrical requirements (12V, 15W)
  • Polycarbonate lens and advertised dust and moisture protection for durability
  • Multiple owners report straightforward DIY installation and good fit
Cons:
  • Red tint and lighting appearance can differ slightly from the original factory unit
  • No installation manual included so professional installation may be required for some buyers

Verdict: A practical, factory-style left rear tail light replacement for 2014–2017 Infiniti Q50 owners who want an easy, reliable swap back to stock function.

Choosing the Right Infiniti Q50 Tail Light Assembly: Key Factors to Consider

Fitment And Mounting

Correct fitment is the foundation of a successful tail light replacement. A precise match to the Infiniti Q50 mounting points and body contours reduces installation time and avoids stress on tabs and fasteners. Poorly fitting assemblies can require modification or adapters, which increases labor and can compromise sealing and alignment.

Check for direct-fit design, factory-style mounting brackets, and matching connector types. These details influence whether you can swap the assembly without trimming body panels or using aftermarket brackets, and they affect final alignment with the trunk and bumper surfaces.

Light Output And Visibility

The tail light's ability to emit clear brake, turn, and running light signals affects safety and legal compliance. Evaluate the type of light source, whether incandescent bulbs or integrated LEDs, and how evenly the lens distributes illumination. Bright, consistent output improves visibility to other drivers in daylight and at night.

Consider lens optics and reflector design as they influence how the light is seen at different angles. Assemblies that concentrate light into hotspots or have uneven illumination can reduce signaling clarity and may draw inspection attention.

Lens And Housing Durability

Materials and construction determine how well the lens and housing withstand sun, moisture, and road debris. Polycarbonate or acrylic lenses with UV-resistant coatings tend to resist yellowing and clouding, while robust housing seals keep water and dust out of the internal cavity.

Good sealing prevents condensation that can reduce light output and corrode sockets. Reinforced mounting ears and corrosion-resistant hardware also help the assembly survive road vibration and temperature cycles without cracking or deforming.

Electrical Compatibility And Connectors

Electrical compatibility affects how straightforward installation will be and whether any modifications are required. Assemblies with factory-style connectors and matching wiring harnesses typically plug in with no splicing. Pay attention to built-in resistors or circuits when replacing incandescent units with LED-equipped assemblies to avoid hyperflashing or error codes.

Verify whether the assembly requires additional adapters, resistors, or programming to communicate with the vehicle's signal monitoring. Clear wiring diagrams and labeled terminals simplify troubleshooting and reduce installation errors.

Installation Complexity

Installation effort varies from simple bolt-on replacements to jobs that require partial trim removal or tailgate panel disassembly. The amount of disassembly affects the tools needed, time investment, and the risk of damaging interior panels or clips.

Look for assemblies that come with comprehensive instructions and hardware, or that follow the factory removal sequence for the Infiniti Q50. Where additional wiring or relays are needed, factor in those steps when assessing total project scope.

Style And Light Pattern

While function is paramount, the assembly's styling and light pattern influence the vehicle's rear appearance and signal legibility. Different lens textures, internal reflectors, and LED arrangements produce distinct looks and signature patterns when illuminated.

Choose a style that maintains clear signaling while matching the Q50's aesthetic. Keep in mind that drastic design changes may affect visibility angles or draw attention during inspections, so balance cosmetic preferences with practical visibility considerations.

How We Chose the Best Infiniti Q50 Tail Light Assembly

We focused exclusively on replacement assemblies designed for the Infiniti Q50 and evaluated candidates against several practical, vehicle-specific criteria. Primary considerations included precise fitment to the Q50 body and mounting points, verified light output and bulb or LED compatibility, and material quality for the lens and housing to resist fogging and UV damage. We also weighed ease of installation, availability of direct-fit connectors, and the clarity of installation instructions or wiring details. Durability factors such as housing seals, corrosion-resistant terminals, and resistance to vibration were included to gauge long-term value. Units that required extensive modification, universal retrofit housings that did not match factory mounting, or parts lacking clear fitment data were excluded. The result is a shortlist of assemblies that prioritize correct fit, dependable illumination, and straightforward installation for Infiniti Q50 owners.

Our full evaluation process is outlined in our review methodology.

FAQ

How do I know if an Infiniti Q50 tail light assembly will fit my car?

Check the part listing for explicit Infiniti Q50 fitment or vehicle-year ranges, and confirm the mounting points and connector types match your car. Look for direct-fit descriptions and any notes about model years or trim-specific differences. If possible, compare mounting hole locations and electrical plug shapes to your factory assembly before purchasing.

Can I swap incandescent bulbs for LEDs in my Q50 tail light assembly?

You can often replace incandescent bulbs with LED equivalents, but compatibility depends on socket type and the vehicle's monitoring system. LEDs draw less current and may trigger hyperflash or error messages unless a compatible resistor or adapter is used. Choose LED units or adapters designed for the Infiniti Q50 to reduce electrical issues.

What should I do if my new tail light assembly shows condensation inside?

Minor condensation can occur with temperature changes, but persistent moisture suggests a sealing problem. Check that gaskets and seals are seated correctly and that mounting screws are torqued to manufacturer guidance. If moisture persists, replace faulty seals or consider an assembly with improved sealing and drainage features to prevent long-term corrosion.

Is wiring or programming usually required for a direct-fit replacement?

Direct-fit replacements are typically plug-and-play and do not require programming. However, if the replacement changes the light source type or introduces different current draw, additional wiring components such as resistors or relays may be needed. Always review the installation notes for any electrical requirements.

How can I maintain the lens and housing to prolong service life?

Keep lenses clean using mild soap and water, and avoid abrasive cleaners that can scratch protective coatings. Park in shaded areas or use UV protectant products rated for automotive plastics to slow yellowing. Inspect seals periodically and address chips or cracks promptly to prevent water ingress.

Conclusion

When choosing an Infiniti Q50 tail light assembly, prioritize correct fitment, clear and consistent light output, and durable lens and housing construction. Those factors determine how easily the unit installs, how reliably it signals other drivers, and how well it resists environmental wear.Balance your preference for styling or LED upgrades against electrical compatibility and installation complexity. Focusing on assemblies designed specifically for the Q50 and built with quality materials will minimize fitment issues and reduce the need for modifications down the road.

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Mike - Certified Professional Automotive Mechanic

About the Author: Mike

Mike is an experienced professional automotive mechanic with hands-on experience maintaining and repairing a wide range of vehicles. At VehicleRuns, he focuses on helping car owners make better decisions about parts, tools, and repairs by combining real-world experience with clear, practical guidance.