# Service bulletin 18SP734

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: 10151476
- Published by NHTSA: 2018\-12\-10
- Manufacturer's number: 18SP734
- Manufacturer's date: 2018\-05\-01
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

## NHTSA's summary

18SP734 18SP734?GHG14 DD15AT Turbocharger

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10151476-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10151476-0001.pdf)

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

## Components

Engine, Turbocharger or supercharger

## Vehicles listed

- 2014 FREIGHTLINER 114SD
- 2016 to 2018 FREIGHTLINER 114SD
- 2014 FREIGHTLINER 122SD
- 2016 to 2018 FREIGHTLINER 122SD
- 2014 FREIGHTLINER BUSINESS CLASS M2
- 2016 to 2018 FREIGHTLINER BUSINESS CLASS M2
- 2014 FREIGHTLINER CASCADIA
- 2016 to 2018 FREIGHTLINER CASCADIA
- 2014 WESTERN STAR 4700
- 2016 to 2018 WESTERN STAR 4700
- 2014 WESTERN STAR 4900
- 2016 to 2018 WESTERN STAR 4900
- 2014 WESTERN STAR 5700
- 2016 to 2018 WESTERN STAR 5700
- 2014 WESTERN STAR 6900
- 2016 to 2018 WESTERN STAR 6900

## Other bulletins for the same vehicles and component

- [18SP734](/bulletins/10146315.md), 2018-10-29, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 18SP734 18SP734?GHG14 DD15AT Turbocharger
- [308\-15](/bulletins/10141948.md), 2018-06-18, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE. 308\-15 Symptom Diagnostics \- Oil Present at the Turbocharger Compressor
- [305\-13](/bulletins/10141001.md), 2018-06-11, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 305\-13 GHG14 DD15 Asymmetrical Turbocharger Flanged Exhaust Manifold
- [0140\-17](/bulletins/10133591.md), 2018-04-16, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 0140\-17 Turbocharger Compressor Outlet Pipe
- [0136\-17](/bulletins/10133587.md), 2018-04-16, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\); ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 0136\-17 GHG17 DD5 Medium Duty \- Exhaust and EGR \- Turbocharger Oil
- [0126\-17](/bulletins/10133578.md), 2018-04-16, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. 0126\-17 SPN 520295 \(MCM\) \(GHG17\) \- Smart Remote Actuator 1
- [0504\-16](/bulletins/10130348.md), 2018-03-13, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. Inspection of the DD13 Turbocharger
- [308\-15](/bulletins/10129637.md), 2018-03-05, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. 308\-15 Symptom Diagnostics \- Oil Present at the Turbocharger Compressor

JSON: [/v1/bulletins/10151476](/v1/bulletins/10151476)

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