

Full Function Valve
Part no.
KN28601
item status
Active
Product line
Haldex
FF2 - Full Function Trailer Valve
- Single valve system - easy to install, maintain and troubleshoot.
- Built-in pressure protection and anti-compounding functions: FMVSS-121 compliant, eliminates broken foundation components caused by compounding of spring brake.
- Space age engineering grade composites: resists corrosion, lighter and more durable than aluminum.
- Built-in service and spring brake quick release.
- Heavy wall mounting nipple is treated to resist corrosion and withstand severe duty applications.
- Service brake priority ensures air tank pressure is sufficient to stop vehicle when spring brakes are first released.
- Can be used with single or twin air tanks.
- Approximate Weight 3 lbs.

Technical specs
Crack Pressure | 3.0 PSI |
Reservoir | 1/2" |
Control | 1/4" |
Supply | 3/8" |
Spring Brake | 2 @ 3/8" |
Delivery (4) | 3/8" |
OEM Part Number | N4304AB |
Approximate Weight | 3 lbs. |