TSB: FREIGHTLINER 108SD, 114SD, BUSINESS CLASS M2, CASCADIA, FREIGHTLINER (2017–2019)

Bulletin sb49038 — April 17, 2017

Bulletin Details

Bulletin IDsb49038
ManufacturerFREIGHTLINER
Models108SD, 114SD, BUSINESS CLASS M2, CASCADIA, FREIGHTLINER
Model Years2017–2019
Date IssuedApril 17, 2017
Date Added to NHTSAJune 18, 2018
ComponentFUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
Vehicles Affected26 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Magnetized Fill Neck for Six-Gallon DEF Tanks

Affected Vehicles

MakeModelYearComponent
FREIGHTLINER 108SD 2019 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER 108SD 2019 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER 114SD 2019 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER 114SD 2019 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER BUSINESS CLASS M2 2019 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER BUSINESS CLASS M2 2019 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER CASCADIA 2019 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER CASCADIA 2019 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER 108SD 2018 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER 108SD 2018 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER 114SD 2018 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER 114SD 2018 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER BUSINESS CLASS M2 2018 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER BUSINESS CLASS M2 2018 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER CASCADIA 2018 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER CASCADIA 2018 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER 108SD 2017 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER 108SD 2017 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER 114SD 2017 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER 114SD 2017 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER BUSINESS CLASS M2 2017 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER BUSINESS CLASS M2 2017 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER CASCADIA 2017 354000 EQUIPMENT:MECHANICAL
FREIGHTLINER CASCADIA 2017 071110 FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
FREIGHTLINER FREIGHTLINER 350000 EQUIPMENT
FREIGHTLINER FREIGHTLINER 356000 EQUIPMENT ADAPTIVE/MOBILITY

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized FREIGHTLINER dealer. Bring this bulletin ID (sb49038) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.