| Product Line | Brake System |
| Category Name | Air Brake Valves |
| Part Type | Spring Brake Valve |
| Alternate Part Name | Trailer Spring Brake Valve |
| Model | SR-2 |
| OEM Part Number | 287376 |
| Application Type | Heavy Duty Trucks, Semi-Trucks |
| Delivery Port Qty | 4 |
| Delivery Port Size | 3/8-18 NPT |
| Exhaust Port Size | Dust Shield |
| Reservoir Port Qty | 2 |
| Reservoir Port Size | 1/4-18 NPT |
| Spring Brake Reservoir Supply Port | 3/4-14 NPT |
| Supply Port Size | 1/4-18 NPT |
| Material | Die Cast Zinc |
| Brake Charging Priority | Service Brake Priority |
| Check Valve Included | No |
| Maximum Operating Temperature | 200 deg. F (93 deg. C) |
| Minimum Operating Temperature | -40 deg. F (-40 deg. C) |
| Opening Pressure | 65 psi |
| Pressure Protection Valve Included | No |
| Regulatory Compliance | ADR 38 |
| Net Weight | 2.93 lb. |
| Cross References | 170287376, 287376, 745-287376, 745287376, AV287376, BXOR287376X, EBN287376N, EM56710, LBV-5671, LBV5671, OR287376, OR287376X, R955287376N |
| Intended Application | - Trailer air brake systems for controlling the application of spring brakes during parking and emergency functions. Their main function is to automatically activate the spring brakes in the event of a loss of pressure in the trailer supply line, thus preventing unintentional vehicle movement and improving road safety.
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