Ronybuy 10-Pack 3-Prong Trailer Light Pigtail Harnesses - Molded Right-Angle, Sealed 3-Wire (4" Round / 6" Oval)

Ronybuy's 10-pack molded 3-prong pigtail harnesses are ready-to-install trailer light plugs designed to replace or repair stop/turn/tail and backup lights on 12V trucks, trailers, campers and RVs.

This kit contains ten right-angle, molded 3-wire plugs built for sealed round and oval fixtures. Each pigtail features a standard 3-prong pattern, color-coded leads, and a grounded white wire terminated with a #10 ring terminal for secure chassis connection. The molded housing and sealed design make it an economical, straightforward solution when a worn or corroded socket needs replacement — no special tools or splicing skills required beyond basic wire matching and terminal fastening.

Will this plug fit my 4" round or 6" oval trailer light?

Yes — the pigtail is made to accommodate common sealed light footprints, including 4-inch round and 6-inch oval lamps. The right-angle, molded connector aligns with standard 3-prong lamp patterns used on many trailers and RVs.

• Fits 4" round sealed light sockets
• Compatible with many 6" oval sealed fixtures
• Molded right-angle shape matches factory socket orientation
• Universal 12V rating for most light circuits

How are the wires arranged and how do I connect them?

The harness uses three color-coded conductors: red, black and white. Red and black wires are provided bare for attaching to the fixture leads; the white wire is the ground and comes with a #10 ring terminal for bolting to the frame or grounding point.

• Red — typically used for turn signal or one active circuit
• Black — typically used for tail or the other active circuit
• White — ground, pre-terminated with #10 ring terminal
• If a vehicle uses a different convention, try swapping red and white as suggested in troubleshooting

What vehicles and situations are these plugs best for?

These pigtails are universal for 12V systems, making them useful for pickup trucks, trailers, caravans, campers, vans and heavy-duty equipment. Install them when a socket is cracked, corroded, or when re-wiring a lamp during restoration or customization.

• Pickup trucks and utility trailers
• RV and camper light repairs
• Restoration projects for classic trailers or after-market lamps
• Quick replacement for corroded or damaged tail/brake sockets

What warranty and troubleshooting help comes with the purchase?

Ronybuy backs this 10-piece set with a 2-year warranty and a 45-day money-back window. If the pigtail does not behave as expected, a simple wire swap (red and white) often resolves mismatched wiring standards without returning the part.

• 2-year coverage against manufacturing defects
• 45-day money-back guarantee for buyer confidence
• Simple on-vehicle troubleshooting: swap red and white if needed
• Basic installation requires wire crimping or soldering and grounding

Who is this for: electricians, mechanics, fleet managers, DIY trailer owners and RV enthusiasts who want a dependable, low-cost way to replace damaged 3-prong lamp sockets. If you need multiple identical, sealed pigtails for routine maintenance or a batch repair, this 10-pack provides fast, repeatable installs for 12V stop/turn/tail and backup light circuits.