The Midland Haldex KN28131X is a two-port, single-control-line relay valve designed to apply and release service brakes on tractors and trailers. It features two 1/2-inch supply ports, two 1/2-inch delivery ports, and a single 1/4-inch control port. Crack pressure is rated at 4.0 plus or minus 1 PSI. The valve cover can be rotated without affecting performance. This unit replaces the earlier KN28130X and cross-references to OEM part number N30106F. A repair kit is available under part number RN10HK; a mounting bracket is sold separately under K202000. Call us to confirm proper fit for your application.
A refundable core charge of $50.40 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
Two-port relay valve with single control line input
1/2-inch supply ports (2) and 1/2-inch delivery ports (2)
1/4-inch control port
Crack pressure: 4.0 plus or minus 1 PSI
Cover is rotatable without affecting performance
Replaces KN28130X; OEM reference N30106F
Tech Specs
- Supply (2): 1/2"
- Delivery (2): 1/2"
- Control (1): 1/4"
- Crack Pressure: 4.0 +/- 1 PSI
- OEM Part Number: N30106F
- Core Group: 225
- Notes: Bracket not included - use K202000. Replaces KN28130X.
