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Service bulletin FSC-SF 504A-C

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10058302
Published by NHTSA2015-08-29
Manufacturer's numberFSC-SF 504A-C
Manufacturer's date2015-03-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

NHTSA's summary

DAIMLER TRUCKS: EXHAUST TAILPIPE TERMINATING NEAR CNG TANK PROTECTOR RELIEF VALVE AND CONTINUAL HEATING OF EXHAUST DISCHARGE RESULTS IN CNG VENTING AND HAVING TAILPIPE EXTENSION INSTALLED, AND AWAY FROM CNG TANK PROTECTION RELIEF VALVE. MODEL 2012-14 CASCADIA.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Exhaust and emissions, Exhaust manifold, pipes and muffler

Vehicles listed
FREIGHTLINER CASCADIA2012, 2013, 2014

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
15V8160002015-12-07. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
14V6800002014-10-29. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
0505-182018-12-10. Service bulletin. 0505-18 SPN 3563 HDEP Inlet manifold pressure Too Low
0315-172018-06-18. Service bulletin. GHG14 - Intake Manifold Pressure Too Low
0314-172018-06-18. Service bulletin. GHG14 Intake Manifold Pressure Too Low
501-142018-06-18. Service bulletin. 501-14 Removal and Installation of the DD13 Exhaust Flanged Manifold
914-142017-10-15. Service bulletin. 914-14 Ambient and Inlet Manifold Pressure Difference (High Box)