Description
The World American WA289714 is an aftermarket Bendix QR-1C-type quick-release valve that replaces Bendix 289714 / 289714N, Haldex KN32041, Meritor R955289714N, and Freightliner 729013401 on heavy-duty truck and trailer air-brake systems. The QR-1C is mounted on the emergency side of spring-brake chambers, with 0 psi differential design for rapid spring-brake release and dependable braking response.
Signs You Need a New Quick Release Valve
- Slow spring-brake release on the emergency / parking circuit
- Air leaks from the QR-1C valve body or exhaust port
- Brake drag or unbalanced application across the rear axle
- Cracked, corroded, or oil-fouled valve housing
Specifications
| Manufacturer | World American |
|---|---|
| Part Number | WA289714 |
| Part Type | Quick Release Valve (QR-1C type) |
| Differential Pressure | 0 psi |
| Supply Port Thread | 3/8-18 NPT |
| Delivery Port Thread | 1/4-18 NPT |
| Balance Port Thread | 1/4-18 NPT |
| Delivery Port Diameter | 0.375 in |
| Supply Port Diameter | 0.25 in |
| Balance Port Diameter | 0.25 in |
| Height | ≈ 2.68 in |
Cross References
This part replaces or is equivalent to the following part numbers:
- Bendix: 289714, 289714N, 104576, OR289714
- Haldex: KN32041
- Meritor: R955289714N
- Mack: 20QE2288
- Freightliner: 729013401
- Navistar / International: 1676745C1
- Velvac: 034012
- Automann: 170.289714
- S&S Truck Parts: S-C357
- Power Products: 289714P
- OTR: OTR289714
Applications
This QR-1C quick-release valve fits the spring-brake / emergency air-brake circuit on the following Class 6–8 trucks and trailers:
- Freightliner Cascadia, Columbia, Century, Coronado, FLD120, M2 (with QR-1C service position)
- Mack Pinnacle, Granite, Anthem, CHU, CXU (with QR-1C)
- International / Navistar 9200i, 9400i, ProStar, LT, HX
- Kenworth and Peterbilt heavy-duty trucks specced with QR-1C
- Volvo VNL, VNR, VHD with QR-1C
- Trailers using Bendix QR-1C in the spring-brake release line
Verify port threads, delivery/supply port sizes, and balance port match your brake system requirements before ordering. Apply DOT-rated thread sealant to all NPT connections.
