| Product Line | Brake System |
| Category Name | Air Brake Valves |
| Part Type | Traction Relay Valve |
| Alternate Part Name | Antilock Traction Relay Valves, Automatic Traction Control Relay Valve for ABS, ATR-6 Traction Relay Valve |
| Model | ATR-6 |
| OEM Part Number | K070951 |
| Application Type | Heavy Duty Trucks, Semi-Trucks |
| Control Port Size | 1/4-18 NPT |
| Delivery Port 1 Size | 1/2-14 NPT |
| Delivery Port 2 Size | 1/2-14 NPT |
| Delivery Port 3 Size | 1/2-14 NPT |
| Delivery Port 4 Size | 1/2-14 NPT |
| Delivery Port 5 Size | Closed Port |
| Delivery Port 6 Size | Closed Port |
| Delivery Port 7 Size | Closed Port |
| Delivery Port 8 Size | Closed Port |
| Exhaust Port Size | Dust Shield |
| Mounting Hole Qty | 3 |
| Mounting Hole Size | 3/8-16 UNC-2B |
| Washer Type | RV055 |
| Material | Aluminum Alloy |
| Mounting Orientation (CW from Front Face) | 180 deg. |
| Valve Body Configuration | 1 SUP / 8 DEL (6H + 2V) |
| Control Port Orientation | 0 deg. |
| Crack Pressure | 5.5 psi |
| Internal Supply Passage to Cover | Yes |
| Maximum Operating Temperature | 185 °F (85 °C) |
| Minimum Operating Temperature | -40 °F (-40 °C) |
| Operating Voltage | 12 V |
| Net Weight | 3.08 lb. |
| Technical Notes | Use caution when positioning solenoid connector. |
| Cross References | K070951, 102802N, 170.K070951, 170K070951, 4721950330, 90555434, K070951 |
| Intended Application | - Designed for use on heavy-duty vehicles equipped with Bendix® pneumatic braking systems with ABS and Anti-Slip/Traction Control (ATC), as well as advanced ESP® stability systems. It typically replaces the standard relay valve that controls the rear axle service brakes, although it is also used on front axles in advanced ABS applications. Its function is to manage regular service braking and supply immediate air pressure during traction or stability control events modulated by the electronic controller.
- Always compare with your OEM part number prior to purchase to confirm full compatibility.
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