Wabco 4721745240 2/2 Way Solenoid Valve

Description

The Wabco 4721745240 is a 2/2 Way Solenoid Valve, a critical component within air brake systems. It functions as an electrically activated switch to control the flow of compressed air, enabling the operation of brakes in commercial vehicles and other pneumatic systems. This valve is typically used to quickly and reliably engage or disengage air pressure to brake actuators. The valve features a bayonet electrical connection, operates at a maximum pressure of 13.0 bar, and has a nominal diameter of 4.0 mm with M12 x 1.5 port threads. Its dimensions are 40 x 66 x 103 mm. This solenoid valve is engineered to OE specification, delivering robust and dependable performance with an IP 6K9K / IP 6K7 protection class and operating within a temperature range of -40°C to +80°C. Its normally closed design ensures fail-safe operation, while its 24V operation is compatible with standard vehicle electrical systems.

Key Features & Benefits

This valve basically controls the flow of air in your air brake system. “2/2” just means it has two ports and two positions. Think of it like a simple on/off switch for air. When the solenoid (that's the electrical part) gets a signal, it either allows air to pass through, or it blocks it. It's a pretty straightforward piece, but vital. It's used in a bunch of different places within the air brake system. You’ll commonly find it controlling air to things like the air shifter for a manual transmission, or it could be part of the system that controls the parking brake. Sometimes it’s used to activate the lift axle on trucks. Depending on where it’s located, it’s responsible for engaging or disengaging a certain function.

Symptoms, Risks & Replacements

Well, without this valve working correctly, that function it controls won’t work either. If it’s part of your parking brake system, you’ll notice if it fails – the brake might not hold. If it's controlling a shifter, you could be stuck in a gear. It acts like a shield, preventing air from getting where it shouldn't. A bad solenoid valve can cause all sorts of issues, from being unable to shift gears to a safety hazard with your brakes. You can find these pretty easily – we’ve got a good selection at Fixparts Online, and other auto parts suppliers do too. It’s usually a relatively straightforward replacement.

Warranty Information

Wabco 2/2 Way Solenoid Valve (MPN 4721745240) comes with a 1-year warranty.