There are 2 types of Surge Couplers: one for Drum Brakes and one for Disc Brakes. The difference between them is how much pressure is pushed through the brake lines in order to optimize the brake type. 

View our selection of Surge Couplers

What is the 'EZ-Lube' Option?

Due to the inconvenience of messy, regular grease cleaning, some manufacturers like Dexter have offered the EZ Lube option. Several components make up this system: EZ Lube Spindles, trailer wheel hub covers (aka Grease Caps) and even Suspension Bolts. The difference between the regular pieces and the EZ-Lube style is a small, pin sized hole on the parts. This small hole runs the length of the part, and allows the customer to push grease through to all the components without the mess.

We carry a selection of EZ-Lube Hub Covers. If you are looking for a Dexter EZ-Lube product that we do not show on our website, contact our team and we can source it for you!

What are the components of a standard trailer coupler?

There are many variations and innovations in couplers, but the basic concept remains virtually unchanged. Here are the main components and how it works:

Once the ball is lined up with the coupler, the coupler is placed over top of the ball. The latch gives way to the ball and then locks by wedging at the narrowest part of the ball. The lever fucntions as the release for the wedge latch, which is why some of the higher-end couplers have a safety pin on the lever so that it does not accidentally release the ball.

Now that you know how a Standard Trailer...

When a trailer is using brakes, the hub is referred to as a 'Hub / Drum Assembly'; when the trailer is not having brakes installed, the hub is called an 'Idler Hub'

What is the difference?

The Hub / Drum shown above...