Confirm function, ports and reference
Share the OEM number, valve function, port markings, connector arrangement, vehicle application and clear photographs of the label and body.
Air brake valves organised by function and cross-reference.
Air brake systems use valves with specific functions, port arrangements and pressure characteristics. Correct identification requires more than a visual match, especially across relay, protection and control valve families.
8products
—brands / applications
OEMcross-reference support
Commercial vehicle pneumatic system support
The catalogue can develop around relay valves, multi-circuit protection valves and other serviceable air-system components.
Matching catalogue products
Explore the full catalogue →Matching catalogue products
Active products from the current catalogue that match this application or product group.
Foot Brake ValvesKNB-MAY-0147Foot Brake Valve
- OEM
- W 461 315 008 0
- Fits
- Mercedes, Volvo, DAF, ERF, Aksam (J085), Ford, BMC
Hand Brake ValvesKNB-MAY-0187Hand Brake Valve
- OEM
- W 961 723 102 0
- Fits
- Mercedes, Volvo, MAN, Iveco, DAF, RVI, Steyr, Leyland
Air Dryer ValvesKNB-MAY-0554Air Dryer Valve
Air Dryer Valve for commercial vehicle applications.
- OEM
- W 432 420 0000
- Fits
- Mercedes, DAF, MAN, Renault, Neoplan, Iveco
Hand Brake ValvesKNB-MAY-1424Hand Brake Valve
- OEM
- W 961 721 041 0
- Fits
- MERCEDES, DAF, LEYLAND-DAF, NATO, SCANIA, IVECO, VOLVO, RENAULT
Four Circuit Protection ValvesKNB-MAY-1648Four Circuit Protection Valve
- OEM
- HLDX 314 060 001
- Fits
- DAF, IVECO, 6965, 2520184, MAN, 07, 09, 24
Four Circuit Protection ValvesKNB-MAY-1668Four Circuit Protection Valve
- OEM
- W 934 702 041 0
- Fits
- DAF, SCANIA, BMC, NATO, FAUN, IVECO, KÖGEL, MERCEDES
Trailer Control ValvesKNB-MAY-1855Trailer Control Valve
- OEM
- W 973 002 539 0
- Fits
- MERCEDES, IVECO, DAF, NATO, KOGEL, LIEBHERR, MAN, STEYR
Air Dryer ValvesKNB-MAY-2678Air Dryer Valve
Air Dryer Valve for commercial vehicle applications.
- OEM
- W 432 431 173 0
- Fits
- MERCEDES, EVOBUS, IVECO
KNB Automotive
Need to cross-reference an air brake valve?
Send the reference and port information so the request can be reviewed accurately.