MAN TGA/TGL/TGS/TGX Pressure Limiting Valve 81521016270 4750103010 Brake Euro 6 Horn Valves & Pulls

Description:
This listing is for a genuine WABCO air brake pressure limiting valve removed from a MAN truck. The valve is identified by WABCO part number 4750103010 and MAN OEM number 81.52101-6270, which cross‑reference directly to MAN 81521016270 / 81521019270 and a wide range of aftermarket equivalents including DAF 1518113 and Scania 1935018. According to MAN and WABCO application data, this 10 bar pressure limiting / pressure regulator valve is used in the service air brake system on MAN TGA, TGL, TGS, TGX, LE, FE, F2000, L2000 and M2000 trucks, as well as certain Neoplan buses and other commercial vehicles.

The valve limits outlet pressure to around 10 bar with an inlet up to approx. 12.5 bar and uses standard M22x1.5 ports, making it suitable for use as a chassis‑mounted pressure regulator in the brake circuit. Design and porting match the WABCO 4750103010 catalogue drawings and aftermarket descriptions.

This unit is a used original component taken from a running vehicle. Before dismantling, the brake system was tested and the valve functioned correctly, regulating and holding air pressure without obvious leaks. After removal it received a basic external clean and visual inspection. The casting shows typical surface corrosion and road dirt from service, but no visible cracks or broken ports. Plastic cover and adjustment screw are intact, mounting points and threaded connections appear in good condition. No electrical connectors are present as this is a purely pneumatic valve.

Being used, internal seals and wear parts are not new and long‑term life cannot be guaranteed, but based on functional testing and inspection this valve is suitable as a cost‑effective replacement for a failed unit, a temporary repair, or a spare.

Installation should be carried out by a qualified technician familiar with heavy vehicle air brake systems. The system must be fully depressurised before removal, and after installation the complete brake system should be leak‑tested and performance‑tested on a rolling road or road test. No coding or electronic programming is normally required for this purely pneumatic component, but vehicle‑specific service information should always be followed.

Key details:
- Genuine WABCO pressure limiting valve
- MAN OEM ref: 81.52101-6270 / 81521016270 / 81521019270
- WABCO ref: 475 010 301 0
- Application: MAN TGA, TGL, TGS, TGX, LE, FE, F2000, L2000, M2000; Neoplan bus and some DAF/Scania cross‑applications
- Function: 10 bar pressure limiting / regulator valve for air brake system
- Ports: M22x1.5 (typical for this reference)
- Country of manufacture: Germany (WABCO heavy‑vehicle brake products for MAN are manufactured in Germany).

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