Service Bulletin for Remote-Fill DEF Tank Fill Port Torque Value and Required Lubricant
Freightliner technical service bulletin SB49-041 for 2017-2021 Freightliner Cascadia.
- Bulletin number
- SB49-041
- Component
- Fuel system, diesel
- Summary
- Service Bulletin for Remote-Fill DEF Tank Fill Port Torque Value and Required Lubricant. Some New Cascadia vehicles with chassis fairings have remote-fill Diesel Exhaust Fluid (DEF) tanks which have new instructions to replace the remote fill hose and fitting. Proper torque value is critical, as the remote-fill fittings are plastic and can easily crack if overtightened. The gasket on the fill fitting is sensitive to improper installation, and can get pinched, resulting in a DEF leak.
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