Description
Bendix 289714N is the genuine QR-1C quick release valve used on heavy-duty air brake systems to speed brake release by exhausting service-line air locally. The valve has a 1/4″ NPT supply and balance, twin 3/8″ NPT delivery ports, and a 3/8″ NPT exhaust, with 0 PSI crack pressure and a 3.4″ overall width. It supersedes the early non-N suffix 289714 and is rebuildable with kit 260519.
Specifications
| Manufacturer | Bendix |
|---|---|
| Part Number | 289714N |
| Part Type | Quick release valve, QR-1C |
| Supply / Balance Port | 1/4″ NPT |
| Delivery Ports | 3/8″ NPT (two) |
| Exhaust Port | 3/8″ NPT |
| Crack Pressure | 0 PSI |
| Overall Width | 3.4 in |
| Weight | ~0.94 lb (0.43 kg) |
| Repair Kit | 260519 |
| Supersedes | 289714 |
| VMRS Code | 13-010-008 |
Cross References
This part replaces or is equivalent to the following part numbers:
- Bendix: 289714N (supersedes 289714)
- Meritor: R955289714N, R955289714X
- Haldex: KN32041
- Freightliner: A12-14980-000
- Navistar: BX289714N
- Velvac: 034012
- Automann: 170.289714
- Euclid: E-BN289714N
- Newstar: S-9749
- Torque Parts: TR289714
- World American: WA289714
- Predator HD: 289714-PHD
Applications
The Bendix QR-1C is a service-side quick release valve used across nearly all Class 6–8 air-braked tractors and straight trucks built since the 1980s. Representative platforms include:
- Freightliner Cascadia, Columbia, Century, Coronado, M2, Classic
- Kenworth T680, T880, T800, W900, T660, T370
- Peterbilt 579, 389, 388, 386, 379, 378, 367
- Volvo VNL, VNR, VNM, VHD
- Mack Anthem, Pinnacle, Granite, CHU, CXU
- International / Navistar LT, LoneStar, ProStar, 9900, 9400
- Air-braked trailers using Meritor / Bendix foundations
Verify port sizes (1/4″ supply, 3/8″ delivery) and mounting orientation before installation. Replace mounting gaskets and apply thread sealant on NPT fittings.
