MAN 81255050237 Pressure Switch

Description

This pressure switch is a vital component in maintaining optimal system performance by monitoring and responding to fluid or gas pressure. It is commonly used in various automotive applications to ensure safe and efficient operation. This MAN pressure switch, with MPN 81255050237, offers reliable pressure regulation. Its compact dimensions are 24 x 24 x 45 mm.

Key Features & Benefits

This little guy basically monitors the oil pressure in your engine. It's an electrical switch, so it doesn’t do much physically, but it’s a critical part of the headlight circuit. It's designed to turn your headlights on automatically when the oil pressure drops too low – usually when the engine is first started or if there’s a problem with the oil pump. It also acts like a shield, protecting the headlight system from running when it shouldn’t, preventing damage. Think of it as a safety net for your headlights and, really, your engine. It’s connected to both the headlight circuit and the engine’s oil pressure sending unit. When oil pressure is good, it keeps the headlight relay energized. When pressure drops, it cuts power to the relay, turning the headlights on. It’s a fail – safe. You'll notice if it fails, because the headlights might come on when they shouldn’t, or they may not function at all when a low oil pressure situation occurs.

Symptoms, Risks & Replacements

It’s important because a failing oil pump can quickly cause major engine damage. This switch gives you a warning – the headlights illuminating – that something is wrong with the oiling system before it becomes catastrophic. Ignoring that warning could lead to very expensive repairs. You can find these switches at places like Fixparts Online if you're doing the replacement yourself. It's a relatively inexpensive part for the protection it offers.

Warranty Information

MAN Pressure Switch (MPN 81255050237) comes with a 1-year warranty.