Replacement Recommendation for Damaged Shelby 5133 Coupler  

Yes, you can remove your weld-on coupler and install a new bolt-on coupler that fits a 2 inch ball. There is just a few things you need to do to before and when installing. You need to know what channel size and the weight capacity you will need…

For a replacement lens for the trailer taillight kit part #TLL160RK you'd need the part #A16RB.

You could do either actually. The Optronics trailer taillight kit part #TLL160RK has a ring terminal for it's ground wire that you can either run back to the mounting hardware or cut off and wire to your ground wire. Personally I would…

I wish we still had access to the Shelby replacement parts but since they aren't currently around anymore there's nothing we offer that I can guarantee will fit. I recommend instead getting a new coupler such as #CT-3001-Z. I've left a…

You'll need a new coupler as the Shelby brand of coupler repair kits are no longer available. So for that the #CT-3002-Z would be a really great option. This fits the same frame dimensions as what you have now and also fits a 2 inch ball. The…

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

Trailer wiring generally uses 16 gauge wire, part #16-1-1. However, with a long trailer like yours you may want to go with a larger like 14 gauge #DW07550-1 or even 12 gauge #12-1-1. Each size is sold by the foot. You will need to have the lights at…

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

It's a wire color difference but not a function difference on the pins of the 7-way. The difference comes from the fact that the two different styles are representative of two different areas that uses trailers. Traditional is usually seen on…

Typically 4-way wiring consists of 18 and 16 gauge wires. For a 4-way that has all 16 gauge wire you would want the Wesbar 4-Pole Flat Connector #W787264. The part #HM38138 uses 18 gauge for all wires but the white that uses 16 gauge.

It could be a tow package fuse on the vehicle. Use the owners manual to find the locations of fuses/relays related to the tow package wiring to check them and replace as needed. If the issue is not a fuse or relay then you can test the vehicle side…