Wabco 8937701472 Swivel Bulkhead

Description

The Wabco 8937701472 Swivel Bulkhead is a critical component within air brake systems, designed to facilitate fluid transfer while allowing for rotational movement. It's commonly used in heavy-duty vehicles and trailers to connect air lines to rotating components such as steering axles or trailer connections. This bulkhead ensures a reliable and leak-free connection, contributing to the overall safety and efficiency of the braking system. Its dimensions are 26 x 26 x 60 mm, and it features M16 x 1.5 and M22 x 1.5 threads. Manufactured to OE specification, this part delivers consistent performance and durability.

Key Features & Benefits

These things basically connect your air lines running to the air brake system – things like the air tanks and valves – to the lines that actually control the brakes on the axles. It's a connection point where the air hose passes through a wall – the “bulkhead” part – and it swivels. That swiveling action is key, it allows movement and prevents the air lines from getting twisted or damaged as the vehicle goes over bumps or the axles move. It’s made up of a body, a swivel nut, and usually some seals to keep everything airtight. Think of it as a crucial link in your air brake system. It’s not something that makes the brakes work, but if it fails, your brakes won’t be able to receive the air pressure they need, which is obviously a big problem. It's part of the network that delivers compressed air to activate the brakes on each wheel. You'll find these pretty commonly on trailers, trucks, and buses where the air lines need to pass through a wall to reach the braking components.

Symptoms, Risks & Replacements

It’s vital because air brakes rely on airtight connections and free movement. If this fitting gets corroded, leaks, or seizes up – stops swiveling – it can cause a loss of air pressure to parts of the braking system. You’ll notice if one fails quickly because you might get a warning light, but sometimes it’s a slow leak, so regular inspection is really important. A busted or leaking swivel bulkhead can cause reduced braking power, or even a complete brake failure on an axle. We carry a lot of these at Fixparts Online, and it's a pretty straightforward replacement if you’re comfortable doing a bit of wrenching. Just make sure you get the right size and thread type for your setup.

Warranty Information

Wabco Swivel Bulkhead (MPN 8937701472) comes with a 1-year warranty.