Lathsy LED Tail Light for Ford F-150 Passenger Side 2018–2020 — Plug-and-Play Weatherproof Replacement

Lathsy's passenger-side LED tail light is a direct-fit replacement designed for 2018–2020 Ford F‑150 trucks, offering plug-and-play installation, weatherproof sealing, and OE compatibility (KL3Z13404B).

If your Ford F‑150 needs a reliable, like-for-like tail light replacement, this Lathsy LED assembly restores factory fit and modern illumination without complicated modifications. Engineered to match the 2018, 2019, and 2020 F‑150 body styles, it replaces the OE unit with the same mounting points and electrical connector type so you can swap the unit quickly. The assembly comes sealed against moisture, backed by a two-year warranty, and includes the bulb and direct plug harness for a straightforward replacement—professional installation is recommended if you're not experienced with vehicle lighting.

Will this fit my 2018–2020 Ford F‑150 passenger side?

Yes—this Lathsy tail light is manufactured to match factory dimensions and electrical connections for 2018, 2019, and 2020 Ford F‑150 passenger-side applications. It’s intended to replace the OE number KL3Z13404B and uses the same mounting points and plug type as the original assembly.

• Compatible model years: 2018, 2019, 2020 Ford F‑150
• Replaces OE part number KL3Z13404B
• Passenger-side orientation (right-hand side)
• Direct-fit housing and connector for factory alignment

How difficult is installation and what’s included?

Installation is designed to be quick for someone familiar with tail light swaps: the assembly includes the bulb and a direct plug harness to match your truck’s wiring. There is no printed instruction manual included, so beginners should follow a reputable installation video or seek professional help to avoid damage or improper alignment.

• Includes bulb and direct plug harness for plug-and-play connection
• No printed guide included—use online tutorials or a mechanic
• Typical swap time: a few minutes for experienced installers
• Professional installation recommended if unsure

How does the light perform in bad weather and over time?

The Lathsy assembly features enhanced sealing to resist water and fog entry, helping preserve bulb life and optical clarity through rain and temperature changes. The design aims to reduce condensation inside the lens and maintain consistent illumination for safer visibility.

• Weatherproof seals prevent moisture and fogging
• Durable lens and housing materials for long-term use
• Two-year warranty covers shipping damage and functional defects
• Recommended routine inspection after extreme weather events

What does the warranty cover and how do I get support?

Lathsy provides a two-year warranty that covers damage sustained during shipping and functional failures under normal use. If the tail light arrives damaged or fails to operate as intended, contact the seller or Lathsy support for replacement options according to the warranty terms.

• Two-year limited warranty on function and shipping damage
• Replacement available if unit is defective or damaged in transit
• Customer support contact provided at point of purchase
• Keep purchase and shipping records for warranty claims

Who is this for: This Lathsy LED passenger-side tail light is intended for Ford F‑150 owners (2018–2020) seeking a direct OEM-compatible replacement without modifications. It’s ideal for drivers who want a reliable, weather-resistant assembly with plug-and-play wiring and a warranty, and for mechanics or DIYers who are comfortable following vehicle lighting installation procedures.