YUANTUO LED tail light assembly 2‑pack for Cadillac ATS/XTS — Brake, Turn & Reverse, Aluminium‑Plastic housing

These two LED units are built to replace worn or damaged taillight bulbs and restore clear, consistent rear lighting for your Cadillac. Designed as direct-fit aftermarket parts for specific factory housings, they use high-efficiency LED arrays and a mixed aluminum-plastic housing to deliver brighter output, improved longevity, and corrosion resistance compared with traditional bulbs. Choose from silver, black, or red finishes to match or refresh your vehicle’s rear appearance.

How will these LED assemblies affect visibility and signaling?

The integrated LED design produces quicker illumination and crisper light patterns, helping other drivers see braking, turning and reversing more clearly. LEDs also maintain steady output over time, reducing the chance of dim or uneven light compared with older incandescent bulbs.

• Integrated functions: brake, position, turn signal and reverse in one unit
• Higher brightness and faster response than incandescent bulbs
• Consistent light output for safer nighttime and daytime signaling

Are these assemblies compatible with my Cadillac model?

These parts are manufactured to fit specific Cadillac applications — ATS 3.6L (2018) and XTS 3.6L (2013–2017). They match the referenced replacement part numbers so you can confirm fitment before purchase. Double-check your vehicle year, engine, and existing bulb location to ensure a correct match and avoid returns.

• Fits: Cadillac ATS 3.6L 2018; Cadillac XTS 3.6L 2013–2017
• Replacement numbers: 13579168 and 84198978 for compatibility checks
• Sold as a pair for left and right rear positions

What materials and performance can I expect from these units?

The assemblies combine aluminum and plastic to balance strength with corrosion resistance, protecting the LED modules from road and weather exposure. The LED light source provides lower power draw, faster response and a longer service life than traditional bulbs, making them practical for daily driving and extended use.

• Housing: aluminum plus durable plastic for rigidity and corrosion resistance
• LED benefits: low energy consumption, bright output, and extended lifespan
• Multiple finishes available: silver, black, or red to suit vehicle styling

How do I install and maintain these replacement assemblies?

Installation follows the same basic steps as replacing OEM taillight bulbs—remove the rear light access panel, unplug the old bulb or module, and install the new assembly. Maintenance is minimal: keep lens and seals clean, inspect periodically for secure mounting, and verify electrical connections remain dry and tight.

• Installation: direct-replacement design for standard rear bulb access
• Care: clean lenses and seals, check wiring for corrosion or looseness
• Service support: seller provides assistance for fitment or product questions

Who is this for? These YUANTUO LED tail light assemblies are ideal for Cadillac owners who need a direct, durable replacement for damaged or degraded rear light bulbs on ATS 3.6L (2018) or XTS 3.6L models (2013–2017). They suit drivers who want brighter, faster-responding rear signals and a longer-lasting LED solution without major modifications. Confirm fitment against your vehicle year and part numbers before ordering to ensure a seamless swap.