MAN TGA/TGL/TGM/TGS/TGX Brake Pneumatic Pressure Switch 81255140031 5.8 Bar Brake Sensors & Switches

Description:
Genuine MAN pneumatic brake pressure switch used in the compressed air brake and handbrake circuit on MAN TGA, TGL, TGM, TGS and TGX trucks. The OE reference 81.25514-0031 / 81255140031 is widely catalogued as a 5.8 bar pressure switch for the pneumatic braking system and handbrake warning, cross-referenced by multiple aftermarket suppliers such as Febi 39102, DT 3.70013 and Auger 82502.

The sensor has a metal hexagonal body with a 4-pin electrical connector (yellow cap) on one side and an M12x1.5 internal threaded pressure port on the other, connected here through a brass fitting and elbow with two rubber air hoses. It monitors system air pressure and switches an electrical circuit to operate the stop light or handbrake warning when pressure reaches the calibrated value. Typical application is on the chassis or compressor/air tank manifold in the brake pneumatic system.

This used unit was removed from a working MAN truck and function-tested prior to dismantling to confirm proper switching at operating pressure. Visual inspection shows no cracks or major damage, only normal corrosion, dirt and marks from tools. The connector housing and pins are intact. Hoses are included but should be inspected and replaced if necessary during installation. We recommend professional fitting; ensure correct location and orientation, seal the threaded port with the appropriate sealing ring, and verify system tightness after installation. No coding or electronic programming is normally required, but the brake system should be bled and checked following manufacturer procedures.

Key features and specs:
- Brand: MAN (OE)
- Type: pneumatic brake pressure switch / handbrake pressure sensor
- OE numbers: 81.25514-0031, 81255140031 (replaces 81255140035, 81255140045, 81255146003, 81255146007, 81255200196, 81255200201, 81255200206, 81255200209)
- Cross references: Febi 39102, DT 3.70013, Auger 82502 and others
- Operating pressure: approx. 5.8 bar switching point
- Thread: M12 x 1.5 internal port with brass fitting
- Electrical: 4-pin connector, 24V commercial vehicle system
- Application: MAN TGA, TGL, TGM, TGS, TGX (various models, mainly Euro 3/4)
- Material: aluminium/steel body, brass port, plastic connector, rubber hoses
- Country/Region of manufacture: Germany
- Condition grade: B – used, tested, cosmetic wear
- Included: complete pressure switch body with attached elbow fitting and two hoses as shown in photos

Please match the OE part number 81.25514-0031 / 81255140031 and connector/port style with your existing unit to confirm compatibility. If unsure, contact us with your VIN and vehicle details for guidance.

Shipping & Returns:
We ship across UK/EU with tracked services. Returns accepted within 30 days; buyer pays return postage. Please inspect upon arrival and message us with any concerns.

Why Buy From Us:
Genuine part, 3-month warranty, fast dispatch, secure packaging.