# Service bulletin SB54\-330

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.

- Type: Service bulletin
- NHTSA id: 10177001
- Published by NHTSA: 2020\-07\-02
- Manufacturer's number: SB54\-330
- Manufacturer's date: 2020\-06\-29
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Freightliner Service Bulletin for Compressor Bracket Modification to Reduce Harness Chafing. New Cascadia vehicles with Detroit HDEP engines may experience engine harness chafing at the harness support bracket that mounts on the air compressor. To avoid this issue, a new hole is drilled on the bracket to enhance the spacing with tie straps and reduce harness contact with the mounting bolt. Additional harness wrapping is added to reduce the harness chafing.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177001-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177001-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2017 to 2021 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [21V073000](/recalls/nhtsa/21V073000.md), 2021-02-12: ENGINE
- [18V581000](/recalls/nhtsa/18V581000.md), 2018-08-30: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [16V416000](/recalls/nhtsa/16V416000.md), 2016-06-09: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [2016285](/recalls/tc/2016285.md), 2016-06-06: Engine

## Other bulletins for the same vehicles and component

- [FleetCom\_Heater Core](/bulletins/11027493.md), 2026-01-08, Other: ENGINE. Fleet Communications for Heater Core Plugging
- [FleetCom\_SS 3163\-FTL](/bulletins/11026453.md), 2025-12-06, Other: ENGINE. Fleet Communications for Power Steering Reservoir Fill Cap Venting
- [FleetCom\_Low Coolant](/bulletins/11026421.md), 2025-12-05, Other: ENGINE. Fleet Communications for Low Coolant Sensor
- [CXA\_10\_25\_Low Coolant](/bulletins/11024962.md), 2025-11-05, Other: ENGINE. CX Advocate for P4, WST X\-Series, DD Engines Low/Critical Low Coolant Warnings
- [CXA\_10\_25\_Conmet Oil Pan](/bulletins/11024958.md), 2025-11-05, Other: ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Issues
- [CXA\_9\_25\_Tech Questions](/bulletins/11023683.md), 2025-10-03, Other: POWER TRAIN; ENGINE. CX Advocate for technical questions/issues raised
- [CXA\_8\_25\_Tech Questions](/bulletins/11022341.md), 2025-09-02, Other: POWER TRAIN; ENGINE; UNKNOWN OR OTHER. CX Advocate for technical questions/issues raised
- [CXA 3\_25\_NOx](/bulletins/11016309.md), 2025-04-02, Other: ENGINE. CX Advocate for NOx conversion low faults
- [CXA 2\_25\_Turbo Oil Drain](/bulletins/11014819.md), 2025-03-04, Other: ENGINE. CX Advocate for turbo oil drain cracking
- [CXA 2\_25\_NOx](/bulletins/11014818.md), 2025-03-04, Other: ENGINE. CX Advocate for NOx conversion low faults

JSON: [/v1/bulletins/10177001](/v1/bulletins/10177001)

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