Grote 99502 – Slim-Line Trailer Wiring Dummy Plugs (50-Pack)

The Ultimate Protection for Your Wiring Harness

Open, unused electrical ports are a primary entry point for moisture, road salt, and debris, leading to the dreaded "green rot" of corrosion. The Grote 99502 Dummy Plug provides a secure, weather-tight seal for unused Slim-Line female ports. By sealing every open connection, you maintain the integrity of your entire wiring system and prevent costly short circuits.

Built for Heavy-Duty Performance

Manufactured from high-quality Vydyne (a durable nylon resin), these dummy plugs are engineered to withstand the most punishing environments. They are resistant to impact, vibration, and chemical exposure, ensuring a long-lasting seal that won't degrade over time. The "Cut To Fit" design allows for a precise application across various Grote Slim-Line harness configurations.

Essential for Fleet Maintenance

The 99502 is offered in a 50-pack bulk quantity, making it a staple for shop managers and owner-operators who demand reliability. Whether you are capping off a multi-function pigtail or winterizing a trailer harness, these plugs are a low-cost insurance policy against electrical failure.