The Fortpro R-5 Relay Valve is engineered as a heavy-duty replacement for Midland KN28060 service brake valves on commercial semi-trucks and trailers. Constructed from durable die-cast aluminum, this R-5 model features 2 supply ports (1/2-14 NPT), 2 delivery ports (3/8-18 NPT), and a 3/8-18 NPT control port. With a 4.6 psi crack pressure and an operating range of -40 deg. F to 200 deg. F, it delivers rapid service brake application and release. Compatible with repair kit F224640.
Fortpro is a trusted leader in the development and manufacturing of premium-quality truck parts designed to meet the demands of semi-trucks and heavy-duty trucks. Renowned for innovation, durability, and reliability, Fortpro products are engineered to enhance performance, safety, and efficiency across a wide range of trucking applications.
Whether you're seeking OEM replacement parts or upgrades, Fortpro provides a diverse selection of components backed by a global reputation for quality and innovation. Trust Fortpro for the parts you need to keep your vehicles on the road longer and stronger.
Basic Part Information5 attributes
| Product Line | Brakes |
|---|---|
| Category Name | Air Brake Valves |
| Part Type | Relay Valve |
| Model | R-5 |
| OEM Part Number | KN28060 |
Application/Fitment Attributes9 attributes
| Application Type | Heavy Duty Trucks, Semi-Trucks |
|---|---|
| Compatible Repair Kit Part Number | F224640 |
| Control Port Size | 3/8-18 NPT |
| Delivery Port Qty | 2 |
| Delivery Port Size | 3/8-18 NPT |
| Mounting Hole Qty | 1 |
| Mounting Hole Size | 5/16 in. |
| Supply Port Size | 1/2-14 NPT |
| Supply Port Qty | 2 |
Dimensional/Physical Attributes1 attribute
| Material | Die-cast Aluminum |
|---|
Technical/Performance Attributes3 attributes
| Crack Pressure | 4.6 psi |
|---|---|
| Maximum Operating Temperature | 200 deg. F (93 deg. C) |
| Minimum Operating Temperature | -40 deg. F (-40 deg. C) |
Packaging / Logistics Attributes:1 attribute
| Net Weight | 3.00 lb. |
|---|
Intended Application
- Used to apply and release service brakes on tractor or trailer.
- Bendix: BEN229467, 229467
- Dayton Parts Batco: AVKN28060
- Euclid: EMDKN28060N
- Haldex: KN28060, KN28060N, KN28060RX
- Mack: MAK5396-KN28060, 5396-KN28060
- Meritor: R955KN28060X
- Navistar : NAV455975C92, 455975C92
- PAI: LRV-3639, EM36390
- WABCO: RKN28060
