A failing tail light on a second-generation GMC Acadia isn’t just a cosmetic issue — it’s a safety hazard that reduces your visibility to trailing drivers and can trigger a dash warning. The outer tail lamp housing on the 2013-2016 Acadia (and the 2017 Acadia Limited) is prone to condensation buildup, lens cracking from road debris, and LED circuit failure over time, leaving you with a dim or dead brake and turn signal.
I’m Amir — the founder and writer behind Four Wheel Ask. I’ve spent years analyzing automotive lighting specifications, OEM cross-reference fitment data, and owner feedback across the full spectrum of replacement tail light assemblies for the GMC Acadia platform.
This guide breaks down the most reliable aftermarket and OEM-replacement options so you can restore full rear lighting performance confidently. Choosing the right 2014 gmc acadia tail light means matching the correct side, lens material, and sealing standard to your specific trim level and driving conditions.
How To Choose The Best 2014 GMC Acadia Tail Light
Replacing a tail light assembly on a 2014 Acadia isn’t complicated, but picking the wrong housing will leave you with fitment gaps, poor light output, or early failure. Focus on three elements: side orientation, lens material, and waterproof rating.
Driver Side vs. Passenger Side — It’s Not Symmetrical
The left and right outer tail lamps on the 2014 Acadia use different OEM part numbers — the left side is 84051375-PFM and the right side is 84051376-PFM. A single-unit purchase is fine if only one side is damaged, but buying a matched pair ensures consistent brightness and lens color across the rear. Check your vehicle trim (SL, SLE, SLT, or Denali) — the base Acadia SL shares the same housing as the Denali for 2014, but the 2017 Acadia Limited uses a unique lamp.
Lens Material: Polycarbonate vs. ABS Plastic
Polycarbonate lenses resist UV yellowing and impact from road debris better than standard ABS plastic. If your Acadia sees highway miles or gravel roads, a polycarbonate lens with an anti-UV coating will stay clear longer. ABS housings are acceptable in budget builds but are more prone to cracking if a branch or stone hits the outer corner.
Waterproof Rating: IP67 vs. IP65 Sealing
An IP67-rated tail light is dust-tight and can handle submersion up to one meter for 30 minutes — critical for Acadias driven through heavy rain or automatic car washes. IP65 seals only protect against low-pressure water jets. The Acadia’s rear lamp cavity collects moisture from hatchback thermal cycles, so a fully sealed housing with a breather vent prevents internal fogging that dims the LED output.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| AKKON Pair Set | Premium | Complete OEM-style pair replacement | DOT & SAE approved pair set | Amazon |
| PIT66 Pair Set | Premium | Balanced brightness and warranty coverage | DOT/SAE clear lens pair | Amazon |
| Misakomo Left | Mid-Range | Impact-resistant polycarbonate left side | Anti-UV polycarbonate lens | Amazon |
| Lochnchn Left | Mid-Range | Budget-friendly driver-side single unit | ABS plastic waterproof housing | Amazon |
| CONLLCON Right | Mid-Range | Right outer LED with IP65 seal | IP65 waterproof ABS housing | Amazon |
| Clidr Left (84051375-PFM) | Value | Entry-level left side LED upgrade | IP67 full sealed ABS housing | Amazon |
| Clidr Right (84051376-PFM) | Value | Entry-level right side LED upgrade | IP67 full sealed ABS housing | Amazon |
In‑Depth Reviews
1. AKKON Pair Set
The AKKON pair set stands out because it delivers both the left and right outer tail lamps in one box, eliminating the hassle of matching two purchases. Both sides are DOT and SAE approved, meaning the light output and reflector geometry meet federal safety standards — a detail many aftermarket single-lamp units skip. The polycarbonate lens and red clear lens design maintain the factory look while improving rear visibility.
Installation is a direct bolt-on with no wiring modifications required, though AKKON recommends professional fitment to ensure the seal sits flush against the Acadia’s rear quarter panel. The pair set covers the 2013-2016 Acadia and the 2017 Limited, matching OEM part numbers 20912757 and 20912756. Owners note that the housing uses the original bulb sockets rather than integrated LEDs, so you’re free to choose your preferred bulb brightness.
The 90-day coverage window is narrower than some competitors offering a full year, but the pair pricing makes this a premium choice if you’re replacing both sides at once. The red clear lens is slightly more transparent than OEM, giving the tail lamp a modernized look without drifting into custom-tuner territory.
What works
- DOT and SAE certified for legal street use
- Both left and right lamps included in one purchase
- Polycarbonate lens resists UV yellowing
What doesn’t
- 90-day warranty is shorter than competing pair sets
- Bulbs not included — you must reuse or buy separately
2. PIT66 Pair Set
The PIT66 pair set matches the AKKON on DOT/SAE certification but adds a longer one-year warranty, making it the safer bet for owners who plan to keep their Acadia on the road for multiple seasons. The clear-lens design incorporates a higher-reflectivity inner surface that throws a wider beam pattern — particularly noticeable in the brake light channel at night.
Fitment is locked to the 2013-2016 Acadia and the 2017 Limited, with no reported gaps or alignment issues for the Denali or SLT trims. The housing uses a fully sealed design with one-way ventilation openings, which prevents moisture entrapment during temperature swings. Owners who live in humid climates report zero internal fogging after six months of use.
The main trade-off is that the red lens leans brighter than OEM, which some drivers find slightly mismatched if only replacing one side. The pair configuration eliminates this issue, and the one-year warranty provides confidence that the LED circuit board and housing seals will hold up through a full winter cycle.
What works
- One-year warranty covers LED and seal failures
- High-reflectivity lens increases nighttime visibility
- One-way vents prevent condensation buildup
What doesn’t
- Clear lens may appear slightly mismatched with original passenger-side lamp
- Bulbs not included
3. Misakomo Left Side (84051375-PFM)
Misakomo focuses on material longevity — the left-side tail lamp uses a polycarbonate lens with an anti-UV coating and a shock-resistant ABS housing. For Acadia owners who frequently navigate gravel drives or off-road trails, the impact resistance of this assembly reduces the risk of lens shatter from a kicked-up stone. The lens is also treated to prevent yellowing, a common issue on older Acadia tail lamps after prolonged sun exposure.
This unit matches OEM part 84051375-PFM and covers the 2013-2016 Acadia SL, SLE, SLT, and Denali trims plus the 2017 Limited Base. The integrated side safety reflector adds an extra layer of passive visibility when parked at night. Installation is plug-and-play with the original bulb socket, and the housing includes a high-dissipation vent to keep the LED circuit from overheating during extended nighttime driving.
The main limitation is that this is a left-side-only unit — if your right-side lamp is also failing, you’ll need to source a separate right-side assembly. At this price point, the polycarbonate construction and anti-UV warranty coverage make it a stronger long-term value than basic ABS-only alternatives.
What works
- Anti-UV polycarbonate lens resists yellowing and cracking
- High heat dissipation vent extends LED driver life
- Side reflector adds passive safety at night
What doesn’t
- Single-side only — right side sold separately
- Bulbs not included
4. Lochnchn Left Side (84051375-PFM)
Lochnchn offers a budget-conscious left-side tail lamp that covers the same Acadia model years but uses a standard ABS plastic housing rather than polycarbonate. The ABS shell is still waterproof and dust-tight, making it suitable for Acadias in dry climates or those parked in garages. The LED light source delivers the same brightness profile as the factory unit, with a red lens that matches OEM color tone closely.
The plug-and-play installation requires no modifications — you pull the old lamp, insert the original bulb socket, and tighten the screws. Lochnchn uses OEM cross-reference number 84051375-PFM, so fitment on the left rear outer position is accurate across SL, SLE, SLT, and Denali trims. The manufacturer offers responsive customer support for any sizing questions.
Long-term durability is the trade-off: ABS plastic is more susceptible to UV fading in direct sunlight after three to four years, and it lacks the impact shatter resistance of polycarbonate. For a quick replacement on a secondary vehicle or a temporary fix, this is a perfectly functional option. For a daily driver in a harsh climate, the polycarbonate alternatives listed above will outlast it.
What works
- Lowest-cost entry point for a left-side replacement
- Plug-and-play with no wiring needed
- Responsive manufacturer support
What doesn’t
- ABS plastic may yellow faster than polycarbonate
- Less impact-resistant against road debris
5. CONLLCON Right Side (84051376)
CONLLCON’s right outer tail lamp is a direct replacement for OEM part 84051376, fitting the 2013-2016 Acadia and 2017 Limited. The assembly is rated IP65, meaning it withstands rain and car-wash spray but is not submersible. The ABS plastic housing and red lens are lightweight and match the original lamp dimensions exactly, eliminating alignment gaps on the passenger side.
The LED light source covers driving, brake, and turn signal functions using the Acadia’s original bulb sockets. Installation is straightforward — you remove the interior hatch trim, unscrew the old housing, and secure the new one in minutes. The CONLLCON brand includes the tail light only, with no extra brackets or wiring harness needed.
The key limitation is the IP65 waterproof rating: in heavy rain or after repeated pressure-wash cycles, moisture ingress is more likely than with IP67-sealed competitors. If your Acadia is parked outdoors year-round or you live in a region with frequent storms, consider stepping up to a fully sealed IP67 alternative for the right side.
What works
- Exact fit for right outer position on 2013-2016 Acadia
- Lightweight ABS housing doesn’t stress mounting points
- Compatible with original bulb sockets
What doesn’t
- IP65 seal allows moisture entry under heavy water pressure
- ABS plastic less UV-resistant than polycarbonate
6. Clidr Left Side (84051375-PFM)
Clidr’s left-side tail lamp offers an IP67 waterproof rating at an entry-level price point — a combination that’s hard to find in the budget tier. The fully sealed ABS housing prevents moisture ingress even in standing water, making it a strong choice for Acadia owners in flood-prone or high-humidity areas. The LED light source covers brake, driving, and reverse functions with improved efficiency over the original halogen bulb design.
The unit replaces OEM part 84051375-PFM and fits the 2013-2016 Acadia SL, SLE, SLT, and Denali trims plus the 2017 Limited Base. The “plug and play” claim holds true — no wiring harness modifications are required. Clidr also includes a well-designed breather valve that releases internal heat without letting moisture in, which helps prevent the LED driver from overheating during long night drives.
The trade-off is the ABS plastic lens, which is more prone to UV yellowing than the polycarbonate used in mid-range options. If you park your Acadia in direct sunlight daily, the lens may begin to haze within two to three years. The IP67 sealing, however, ensures the internal LED board stays dry and functional longer than competitors with weaker seals.
What works
- IP67 waterproof rating exceeds most budget tail lamps
- Heat-dissipating breather extends LED life
- Direct fit for all 2013-2016 Acadia trims
What doesn’t
- ABS lens may yellow under prolonged UV exposure
- Bulbs not included
7. Clidr Right Side (84051376-PFM)
Clidr’s right-side tail lamp mirrors the left-side unit exactly in construction and materials, with the same IP67 waterproof rating, ABS housing, and integrated LED array. It replaces OEM part 84051376-PFM and fits the same Acadia model range as the left-side version, making it a perfect companion if you’re replacing both sides separately. The unique LED style uses distinct light guides for the brake and turn channels, which improves the overall rear-end symmetry.
Installation is identical to the left-side unit — plug the existing bulb socket into the new housing and secure it to the quarter panel. The OEM-grade ABS plastic is molded to match the factory contour, so the fitment sits flush without gaps. Clidr’s sealed design includes a breather to equalize internal pressure, which reduces lens stress during temperature shifts.
As with the left-side unit, the ABS lens is the limiting factor for long-term UV resistance. If you’re buying both sides, the pair will cost roughly the same as a single-premium set but with slightly lower material durability. For Acadia owners on a strict budget who need a reliable, dry tail lamp today, the Clidr right-side unit delivers the same IP67 protection as lamps costing significantly more.
What works
- IP67 rating matches premium-tier waterproofing
- Plug-and-play fitment with OEM connector
- LED guide strips improve turn signal visibility
What doesn’t
- ABS lens vulnerable to UV yellowing over time
- Bulbs not included
Hardware & Specs Guide
IP Waterproof Rating
The IP rating defines how well the tail lamp resists moisture. IP67 is fully dust-tight and submersible to one meter for 30 minutes — ideal for Acadias driven through flood roads or automatic car washes. IP65 only resists low-pressure water jets and may allow condensation in high-humidity climates. For daily-driven Acadias, IP67 is the recommended baseline.
Lens Material: Polycarbonate vs. ABS
Polycarbonate lenses are impact-resistant, UV-stabilized, and less prone to yellowing — the preferred material for long-term ownership. ABS plastic is lighter and cheaper but degrades under continuous sun exposure. If your Acadia is parked outdoors full-time, choose a tail lamp with a polycarbonate lens to avoid hazing within two to three years.
FAQ
Will a 2014 GMC Acadia tail light from a Denali trim fit my SLE?
Do aftermarket LED tail lights for the Acadia require a resistor to prevent hyper flash?
How do I remove the old tail light assembly on a 2014 Acadia?
Final Thoughts: The Verdict
For most buyers, the 2014 gmc acadia tail light winner is the AKKON Pair Set because it delivers DOT/SAE-approved safety, a polycarbonate lens, and both sides in a single box at a premium price point. If you want a bright, warrantied pair with a longer coverage period, grab the PIT66 Pair Set. And for a durable single-side replacement with UV-resistant polycarbonate, nothing beats the Misakomo Left Side.
Certification: BSc in Mechanical Engineering
Education: Mechanical engineer
Lives In: 539 W Commerce St, Dallas, TX 75208, USA
Md Amir is an auto mechanic student and writer with over half a decade of experience in the automotive field. He has worked with top automotive brands such as Lexus, Quantum, and also owns two automotive blogs autocarneed.com and taxiwiz.com.