Trailer Light Connector Guide | Jumper Prongs VS Superseal 2-Pin Connector

Trailer Light Connector Guide

Not sure which connector style you need for your trailer or vehicle’s marker lights? Use this simple guide to determine whether you need a Jumper Prongs Connector or a Superseal 2-Pin Connector based on your trailer’s wiring setup, age, and application.

🔌 Connector Types Overview

1. Jumper Prongs Connector

Description:
This is a traditional male/female prong-style connector, commonly found on older trailers or custom builds. It’s simple to use, easy to replace, and works well in non-sealed wiring systems.

Commonly Found On:

  • Older flatbeds and dry van trailers (pre-2015)
  • Custom-built trailers or retrofitted lighting setups
  • Box trucks and straight trucks with open wiring
  • Utility trailers and pickups using basic lighting harnesses

Best For:

  • Fleets or owners needing quick replacements or upgrades
  • Trailers without sealed or OEM wiring
  • Budget-friendly repairs and DIY installs

How to Check:
Look at your existing light connection. If it uses two flat metal prongs and plugs into a simple open-style socket—this is a jumper prong setup.

2. Superseal 2-Pin Connector

Description:
A weather-sealed, snap-tight connector designed for modern OEM-style trailer lighting systems. It provides strong water resistance (IP67/IP68 rated) and a secure fit, ideal for harsh conditions.

Commonly Found On:

  • Newer reefer and dry van trailers (2015 and newer)
  • Utility, Hyundai, Vanguard, and Stoughton trailers (2015+)
  • Tankers and bulk trailers with sealed lighting systems
  • Sprinter vans, enclosed trailers, and RVs
  • OEM fleet vehicles using integrated lighting harnesses

Best For:

  • Harsh weather and high-vibration environments
  • Long-term reliability with minimal maintenance
  • Fleets with sealed harnesses or factory-installed lighting

How to Check:
Find the back of the light or wiring harness. If it connects via a rectangular plastic connector with rubber seals (and snaps tightly in place), that’s a Superseal 2-Pin system.

✅ Quick Decision Tool

Step 1: What are you installing lights on?
Older flatbed, dry van, or custom trailer? → Likely needs Jumper Prongs
Newer reefer, box truck, or Sprinter van? → Likely needs Superseal 2-Pin

Step 2: What type of wiring does your trailer use?
Open or exposed wire ends? → Jumper Prongs
Sealed connectors with a rubber gasket? → Superseal 2-Pin

Step 3: Check the back of your current light.
Flat metal prongs? → Jumper Prongs
Sealed rectangular plug? → Superseal 2-Pin

📞 Need Help?

If you’re still unsure which version you need, feel free to contact us or email a photo of your current light setup to our support team. We're happy to help you get the right fit for your trailer or truck.

Contact Support

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Click below for an easy set up guide for installing marker lights on vehicles and trailers.

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