Technical Service Bulletin 49-14 — 2011 WESTERN STAR 6900
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 49-14 |
| Manufacturer | |
| Vehicle | 2011 WESTERN STAR 6900 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
49-14 - DEF Tank Coolant Valve O-Ring Kit
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.