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Service bulletin FSC-503-A

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 id10057452
Published by NHTSA2015-05-30
Manufacturer's numberFSC-503-A
Manufacturer's date2015-01-01
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY

NHTSA's summary

DAIMLER TRUCKS: RADIATOR RESONANCE RESULTS IN TUBE FRACTURES COOLING AND LEAKAGES AND OCCURS IN TRUCKS CONFIGURATIONS AT CERTAIN OPERATIONAL SPEEDS. *PE

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, Cooling system, Radiator

Vehicles listed
FREIGHTLINER CASCADIA2010, 2011, 2012, 2013, 2014

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

Other bulletins for the same vehicles and component
sb20782019-04-08. Service bulletin. Cascadia Radiator Strut Rod Rubbing on Upper Radiator Hose
sb20782019-04-08. Service bulletin. Cascadia Radiator Strut Rod Rubbing on Upper Radiator Hose
sb20782019-04-01. Service bulletin. Cascadia Radiator Strut Rod Rubbing on Upper Radiator Hose
sb20782019-04-01. Service bulletin. Cascadia Radiator Strut Rod Rubbing on Upper Radiator Hose
SF5032018-06-25. Service bulletin. SF503-DLR Cascadia 1625 Radiator Tuned Mass Absorbers
sb49302018-06-18. Service bulletin. sb4930 49-30 - Gentech DEF Coolant-Flow Solenoid, Testing and Replacement
sb20832018-06-18. Service bulletin. sb2083 FluidXchange Tool and FittingsB
sb20782018-06-18. Service bulletin. sb2078 Cascadia Radiator Strut Rod Rubbing on Upper RadiatorHose
sb20772018-06-18. Service bulletin. sb2077 Tuned Mass Absorber Installation, Cascadia with 1625 sq in Radiator
sb20742018-06-18. Service bulletin. sb2074 Kysor Fan Clutch Rocking Runout Inspection