Skip to content Skip to navigation menu
You cannot place an order at this time, pleaseContact Us for further assistance
  • R-12P
  • Relay Valve
  • Not for Sale
  • Original Equipment

999999 In Stock


Weights & Dimensions

116.0 Millimeter
115.0 Millimeter
119.0 Millimeter

VMRS Codes / Description

013-010-009 Relay Valve - Air Brake
3/8-16 UNC-2B (4x) 
Mounting Orientation (CW from Front Face)
Mounting Bracket Direction
Mounting Bracket Location
Above Cover 
Body Configuration
2 SUP / 4 DEL (2H + 2V) 
Supply Port 1
1/2-14 NPT 
Supply Port 2
1/2-14 NPT 
Internal Supply Passage to Cover
Control / Secondary Service Port
1/4-18 NPT 
Control Port Orientation (CW from Front Face)
Delivery Port 1
3/8-18 NPT 
Delivery Port 2
3/8-18 NPT 
Delivery Port 3
3/8-18 NPT (Plugged) 
Delivery Port 4
3/8-18 NPT (Plugged) 
Exhaust Port
Dust Shield 
Crack Pressure
0.0 PSI 
TMC Washer
Maximum Operating Temperature
200 °F (93 °C) 
Minimum Operating Temperature
-40 °F (-40 °C) 
Please accept the privacy notice and the download disclaimer


The information contained in documents found on this website is intended for the exclusive use of trained persons within the commercial vehicle industry, and must not be passed on to any third party.

All recommendations regarding products and their servicing or usage are with reference to Knorr-Bremse products and should not be considered applicable to products from other manufacturers.

This information does not purport to be all-inclusive and no responsibility is assumed as a result of its use. We cannot accept any liability nor offer any guarantee regarding data accuracy, completeness or timeliness. The information does not represent any guarantee or ensured characteristics of the Products or Systems described.

No liability can be accepted based on the information, its use, recommendations or advice provided. In no event may we be held liable for any damage or loss except in the case of willful intent or gross negligence on our part, or if any mandatory legal provisions apply.

Any legal disputes arising from the use of this information shall be subject to German law.

Note: If service work is carried out on a vehicle as a result of information taken from a document, it is the responsibility of the workshop to ensure the vehicle is fully tested and in full functional order before the vehicle is returned into service. Knorr-Bremse accepts no liability for problems caused as a result of appropriate tests not being carried out.

This disclaimer is an English translation of a German text, which should be referred to for all legal purposes.