Description
The World American WA65706 is a tractor protection valve designed to isolate the tractor air supply from the trailer brake system in the event of a trailer air line rupture. This critical safety component maintains adequate air pressure for tractor braking even if a trailer brake line fails. Built to match Bendix 065706 specifications, it features 0.375-inch NPT ports for both primary and secondary lines and a 0.25-inch NPT supply port.
Specifications
| Manufacturer | World American |
|---|---|
| Part Number | WA65706 |
| Valve Type | Tractor Protection Valve |
| Primary Port Thread | 0.375 inch NPT |
| Secondary Port Thread | 0.375 inch NPT |
| Supply Port Thread | 0.25 inch NPT |
| Supply Port Quantity | 1 or 2 |
| Switch Port Thread | 0.25 inch NPT |
| Thread Type | NPT (National Pipe Thread) |
| Warranty | 1 year or 100,000 miles |
Cross References
This part replaces or is equivalent to the following part numbers:
- Bendix: 065706, 109790, 65706, BEN065706
- Freightliner: BW065706
- Kenworth: 065706BXW
- Mack: 745-065706
- Navistar: BAN065706, BX065706, ZAC065706
- Volvo Truck: 210248600
Applications
The tractor protection valve is standard equipment on all heavy-duty Class 8 trucks:
- Freightliner, Kenworth, Peterbilt, Volvo trucks
- Mack, Navistar, and other OEM tractor units
- Used in both mechanical and electronic brake systems
Verify air brake system configuration and port size before installation to ensure proper integration.
