# Service bulletin SB4934

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: 10192960
- Published by NHTSA: 2021\-05\-10
- Manufacturer's number: SB4934
- Manufacturer's date: 2014\-02\-01
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

DEF Tank Coolant Valve O\-Ring Kit

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10192960-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10192960-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2000 FREIGHTLINER 108SD
- 2001 to 2022 FREIGHTLINER 108SD
- 2004 to 2022 FREIGHTLINER 114SD
- 2004 to 2022 FREIGHTLINER 122SD
- 2002 to 2021 FREIGHTLINER CORONADO
- 2004 to 2021 FREIGHTLINER M2

## Recalls for the same vehicles and component

- [2020408](/recalls/tc/2020408.md), 2020-09-01: Engine
- [20V527000](/recalls/nhtsa/20V527000.md), 2020-09-01: ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING
- [18V581000](/recalls/nhtsa/18V581000.md), 2018-08-30: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [15V620000](/recalls/nhtsa/15V620000.md), 2015-10-02: ELECTRICAL SYSTEM:IGNITION:MODULE; ENGINE AND ENGINE COOLING:ENGINE
- [2015336](/recalls/tc/2015336.md), 2015-07-24: Engine
- [15V343000](/recalls/nhtsa/15V343000.md), 2015-06-03: ENGINE AND ENGINE COOLING:ENGINE
- [14V680000](/recalls/nhtsa/14V680000.md), 2014-10-29: FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
- [2014050](/recalls/tc/2014050.md), 2014-02-21: Engine
- [14V080000](/recalls/nhtsa/14V080000.md), 2014-02-21: ENGINE AND ENGINE COOLING:ENGINE
- [12V074000](/recalls/nhtsa/12V074000.md), 2012-02-28: ENGINE AND ENGINE COOLING:ENGINE:DIESEL

## Other bulletins for the same vehicles and component

- [CXA 03\_26\_Surge Tank](/bulletins/11030507.md), 2026-04-02, Other: ENGINE. CX Advocate for discolored coolant surge tanks \(24CSA\-20\)
- [FleetCom\_Heater Core](/bulletins/11027493.md), 2026-01-08, Other: ENGINE. Fleet Communications for Heater Core Plugging
- [TSB54\-377\-FTL](/bulletins/11027199.md), 2026-01-07, Service bulletin: ENGINE. Technical Service Bulletin Low Coolant Sensor
- [CXA\_10\_25\_Conmet Oil Pan](/bulletins/11024958.md), 2025-11-05, Other: ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Issues
- [24CSA\-19Rev](/bulletins/11022317.md), 2025-09-02, Other: ENGINE. Revised Customer Service Annoucement for No Trouble Found Heavy Duty Engine Product \(HDEP\) Oil Separator Leaks
- [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
- [TSB01\-002\-DDC](/bulletins/11014806.md), 2025-03-04, Service bulletin: ENGINE. Technical Service Bulletin for Gen 5 DD13 Turbocharger Oil Return Line Cracks
- [CXA 1\_16\_Turbo Oil Drain](/bulletins/11013206.md), 2025-01-29, Other: ENGINE. CX Advocate for turbo oil drain cracking

JSON: [/v1/bulletins/10192960](/v1/bulletins/10192960)

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