The Midland Haldex 110139X is a ratio relay valve designed for trailer brake systems, applying and releasing service brakes on trailer-only applications. It features four delivery ports, a 3/8" supply port, a 3/8" control port, a 3/4" reservoir port, and a 4.5 PSI crack pressure. Also referenced as A10300. This valve is sold by Pro Gear and Transmission. Call us to confirm proper fit for your trailer application before ordering.
A refundable core charge of $28.00 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.
Features
Trailer-only ratio relay valve for applying and releasing service brakes
4-port delivery configuration
Supply port: 3/8"
Control port: 3/8"
Reservoir port: 3/4"
Crack pressure: 4.5 PSI
Tech Specs
- Supply (1): 3/8"
- Delivery (4): 3/8"
- Control (1): 3/8"
- Reservoir (1): 3/4"
- Crack Pressure: 4.5 PSI
