Optronics Combination Trailer Tail Light ST36RS Passenger Side — Waterproof, Low-Profile, Replaceable Bulb

The Optronics ST36RS is a waterproof, low-profile combination tail light designed for passenger-side installation that delivers stop, turn and tail functions with a replaceable bulb and corrosion-resistant construction.

This compact, universal-mount light fits many trailers and vehicles that require an over-80" application tail lamp on the passenger side. Built with an acrylic lens and molded plastic housing, the ST36RS offers a durable, weatherproof package with a shockproof bulb socket and stainless-steel mounting hardware. It ships with hardwired leads plus a separate ground eyelet for straightforward connection and reliable grounding.

How does this light mount and connect to my trailer?

The ST36RS uses a two-inch center mounting pattern and includes stainless-steel hardware so you can secure it quickly. Wiring is pre-attached with separate ground lead terminated in an eyelet, simplifying electrical hookup and ensuring a proper ground connection.

• Mounting: 2" center-to-center bolt spacing for common trailer applications
• Hardware: stainless-steel screws supplied for corrosion resistance
• Wiring: hardwired leads with a separate ground eyelet for secure grounding
• Compatibility: universal passenger-side fit for over-80" applications

What makes the ST36RS durable in outdoor conditions?

Designed for all-weather use, the ST36RS features a molded plastic housing and an acrylic lens that resist moisture, UV and impact. The shockproof socket reduces stress on the bulb, promoting longer service life even on rough roads.

• Waterproof sealing to keep moisture out of the housing
• Acrylic lens resists cracking and fading from sun exposure
• Shockproof socket helps protect bulbs from vibration-related failure
• Stainless-steel mounting hardware minimizes rust

How easy is it to service or replace the bulb and lens?

>The ST36RS is built for simple maintenance: the lens screws off for access and the bulb is replaceable without replacing the entire assembly. This reduces downtime and overall cost when a bulb reaches the end of its life.

• Screw-on lens for quick access to the bulb cavity
• Replaceable bulb socket designed for easy change-outs
• No specialized tools required beyond a screwdriver and replacement bulb
• Retail clam packaging for convenient stocking and purchase

What are the physical dimensions and fit considerations?

The compact footprint of the ST36RS suits installations where space is limited but visibility is still critical. Confirm the 2" mounting centers and overall housing size before installation to ensure a proper fit on your vehicle or trailer.

• Dimensions: approximately 3-1/4" wide x 7-7/8" long x 2-7/8" deep
• Low-profile design to reduce snagging and wind resistance
• Universal passenger-side application for over-80" setups
• Check door or bumper clearance before drilling mount holes

Who is this for? The Optronics ST36RS is a solid choice for trailer owners, fleet managers and DIY vehicle maintainers who need a dependable, weatherproof passenger-side tail light with easy serviceability. It’s especially useful for trailers and vehicles requiring an over-80" lighting solution or anyone looking to replace a worn or cracked tail lamp with a low-profile, corrosion-resistant unit that’s quick to mount and simple to wire.

FAQ

Q: Is the ST36RS waterproof for trailer use?

A: Yes. The ST36RS has a waterproof molded housing and sealed lens suited for all-weather trailer applications.

Q: Can I replace the bulb without changing the whole unit?

A: Yes. The lens unscrews and the bulb is replaceable using the shockproof socket for easy maintenance.