| Product Line | Brakes |
| Category Name | Air Brake Valves |
| Part Type | Relay Valve |
| Alternate Part Name | RE-6 Emergency Relay Valve |
| Model | RE-6 |
| OEM Part Number | 281865 |
| Application Type | Heavy Duty Trucks, Semi-Trucks |
| Compatible Repair Kit Part Number | F224740 |
| Delivery Port Qty | 4 |
| Delivery Port Size | 1/4-18 NPT, 1/4-18 NPT, 3/8-18 NPT, 3/8-18 NPT |
| Emergency Supply Port Size | 1/4-18 NPT |
| Exhaust Port Size | Dust Shield |
| Service Port Size | 1/4-18 NPT |
| Supply Port Size | 3/4-14 NPT, 3/8-18 NPT |
| Material | Die-cast Aluminum |
| Crack Pressure | 2.0 psi |
| Full Emergency Release Pressure | 65 psi MAX |
| Initial Emergency Pressure Application | 20 - 45 psi |
| Maximum Operating Temperature | 65 psi MAX |
| Minimum Operating Temperature | -40 deg. F (-40 deg. C) |
| Net Weight | 3.12 lb. |
| Cross References | 170281865, 281865, 281865N, 281865R, 281865X, 745-281865N, 745281865N, EBN281865N, EM36140, FLTBV1865, LEV3614, OR281865, R955281865N |
| Intended Application | - Heavy truck trailers and semi-trailers.
- Commercial vehicles with emergency air brake systems.
- Spring brake configurations in air brake systems.
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