Wabco 4460043130 Electronic ABS Modulator 4S/4M 12V

Description

The Wabco Electronic ABS Modulator 4S/4M 12V is a critical component of a vehicle's braking system, designed to prevent wheel lockup during braking, thereby enhancing stability and control. This modulator is used in a variety of vehicles requiring a 4S/4M ABS system. Its design adheres to OE specifications, ensuring reliable performance and compatibility. The unit measures 40 x 134 x 123 mm and operates within a temperature range of -40°C to +75°C, offering robust functionality across diverse conditions. The ABS-D BASIC version provides essential anti-lock braking capabilities, and features an IP 30 protection class. Its mounting utilizes 3x Ø 7.5 mm holes with a hole distance of 112x122 mm.

Key Features & Benefits

This modulator is really the brains behind your anti – lock braking system. It receives signals from your wheel speed sensors – those little guys that monitor how fast each wheel is spinning. Based on that info, the modulator quickly cycles the brake pressure to each wheel individually. Think of it like a really fast on – off switch for each brake line. It prevents your wheels from locking up during hard braking, and that's how it allows you to still steer while stopping. It also works with the brake light switch and sometimes the traction control system. It’s a central part of the ABS system, obviously. It sits somewhere in the engine bay, usually near the master cylinder, and it has a bunch of hydraulic lines running to each wheel brake. Electronically, it connects to the car’s computer, receiving data and sending status information. It essentially translates what the computer tells it to do into action at the brakes. It’s not just about stopping, it's about controlled stopping.

Symptoms, Risks & Replacements

Well, if this thing fails, your ABS light will come on, and your anti – lock braking system won’t work. You’ll still be able to brake, but you lose that crucial safety net. In a panic stop, especially on a slippery surface, your wheels can lock, meaning you lose steering control. It really acts like a shield against skidding and helps you maintain directional stability when you need it most. You’ll notice if it’s gone bad because the light will be on, and in a hard braking situation, you'll feel the difference. You can find these pretty reliably at places like Fixparts Online if you’re looking to replace it yourself. Just make sure you get the right one for your specific vehicle.

Warranty Information

Wabco Electronic ABS Modulator 4S/4M 12V (MPN 4460043130) comes with a 1-year warranty.