Haldex FF-2 Full Function Relay Valve, 3/8 in Inlet and Outlet
Product Overview
Haldex develops and manufactures brake systems for heavy trucks, trailers, and buses. The FF2 relay valve is designed to fill your trailer system reservoir while simultaneously filling the spring brakes, thereby releasing your parking brakes to ensure service brake capability when ready to drive. It guards against re-releasing of spring brakes once applied until a service brake system failure is fixed. This design prevents loss of service brakes by ensuring the reservoir fills before spring brakes release. The valve meets or exceeds OEM specifications and is FMVSS-121 compliant.Relay Valve, Full, Body Configuration: Reservoir, Control, Supply, (4) Delivery, (2) Spring Brake Port, 3/8 in Inlet, 3/8 in Outlet, 3 psi Pressure, Standards: FMVSS-121
Features & Benefits
- Manufactured to Meet or Exceed O.E.M. Specifications in Function, Form & Fit.
- A true single valve system for single and tandem axle trailers (Three or more axles require multiple FF2s).
- Trailer air system simplicity and ease of installation.
- Built-in pressure protection and anti-compounding functions eliminate broken foundation components caused by compounding of spring brake.
- Engineering grade composites resist corrosion, lighter and more durable than aluminum.
- Built-in service and spring brake quick release.
- Heavy wall mounting nipple treated to resist corrosion and withstand severe duty applications.
- Service brake priority ensures air tank pressure is sufficient to stop vehicle when spring brakes first released.
- Can be used with single or twin air tanks.
- Single valve system - easy to install, maintain and troubleshoot.
- FMVSS-121 compliant.
Specifications
| Model | FF-2 |
Interchanges & Equivalent parts:
| 48209912 |
| 3267700 |
| 41902701 |
| 119100156 |
| 119100179 |
| 68159 |
| 7338500 |
| 300479CC |
| 3919797 |
| S8664 |
| N4304 |
| N4304AC |
| N4304AG |
| N4304AK |
| N4304AL |
| N4304BA |
| N4304DB |
| KN28600 |
| KN28600X |
| KN28620 |
| FTV4075 |
| YNY009134 |
| ZZKN28600 |
| EMDKN28600X |
| MPN4304AC |
| X300479CC |
| 12352 |
| HKN28600X |
| 110742 |
| 39300584 |
| 401221 |
| 5396-KN28600 |
| 767653010823 |
| ACE009754001 |
| AV28600 |
| AVKN28600 |
| GTA28600 |
| HAKN28600 |
| HALKN28600 |
| HDX KN28600 |
| KN28600-MD |
| KN28600M1D |
| M4304AC |
| MBIKN28600 |
| MBRKN28600 |
| MHD-KN28600 |
| MIDKN28600 |
| MIKN28600 |
| MKN28600 |
| PD KN28600 |
| PL-28600 |
| R955KN28600N |
| RB-28600 |
| S-22187 |
| TV28600TEC |
| TWDHKN28600 |
| YNY0091-34 |
| 170KN28600 |
| 13010114 |
| PA10328 |
| AS012 |
| SA012 |
| 28468601 |
| MP5-2258 |
| 6450775 |
| 55710087 |
| HF1002 |
| KN28605 |
| KN28608 |
| N4304FB |
| N4304FE |
| H0042392 |
| 8HB619 |
| FTV-4075 |
| 14224 |
| 12900320 |
| WAKN28600 |
| E-MDKN28600X |
| RB28600 |
| U55KN28600X |
| 46027600000 |
| U55KN28600 |
| MP52258 |




















