1989 Mercedes-Benz E-Class Vehicle Air Mattress

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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…

A TCM double-lip grease seal number 127194 has an inner diameter of 1.274-inches and an outer diameter of 1.983-inches according to my research. The available grease seal nearest to those dimensions that we offer is part #RG06-010, which is a…

The part you referenced 127194TB is a double-lip seal with an inner diameter of 1.274-inches and an outer diameter of 1.983-inches. The available seal nearest to those dimensions that we offer is part #RG06-010, which is a double-lip seal sold as a…

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…

Hey Jeremy, Typically with boat trailers the manufacturer will install hydraulic surge brakes because you don't have to worry about the water damaging wires like you would with electric brakes. That being said,…

I really wish we had replacement parts still for the Atwood couplers but since they've been out of business for so long we don't have any way to get the parts you are…

If your old axles have a 5 bolt brake flange the assemblies like Dexter Electric Trailer Brake Assembly - 12" - Left Hand - 6,000 lbs part #23-105 or Dexter Electric Trailer Brake Assembly -…

We do carry electric brake assemblies as well as hub/drum assemblies. To determine the correct fit, you will need to measure the spindles of your axles. I've attached a photo to assist with the measurement…

You can get a new brake mounting flange for your axle. The old flange will need to be cut off. The part is #4-44-1. This is designed to fit a 3 inch trailer axle and should be welded in place by a professional. Since you would also have to get the…

The Titan Brake Actuator #T63FR doesn't have a specific manual. There are just parts of a catalog that refer to it. I've attached those photos to assist. This product is…

Most of the time when a tow setup is porpoising with a weight distribution system all you have to do is add a bit more spring bar tension to minimize the porpoising. With an Equalizer system you would need to angle the spring bars down further to…