Technical Service Bulletin 21B04 — 2018 FORD F-550
STRUCTURE
Bulletin Details
| TSB ID | 21B04 |
| Manufacturer | |
| Vehicle | 2018 FORD F-550 |
| Component | STRUCTURE |
| Communication Date |
Bulletin Summary
Certain 2017 through 2020 Model Year F550 Equipped with Payload Plus Upgrade Package ;Frame Rail Crack In some of the affected vehicles certain second unit body (SUB) upfits could cause stress points on the frame rail. Over time this stress could cause a crack in the frame rail behind the cab.
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.
Other TSBs for the 2018 FORD F-550
20N04 S2
EQUIPMENT