# Service bulletins for the 2013 Western Star 6900

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.

307 bulletins from NHTSA, as of 2026-10-19.

- [SBW83\-030](/bulletins/10214907.md), 2022-07-02, Service bulletin: VISIBILITY. Updated Western Star Service Bulletin for HVAC Actuator Replacement
- [ICI21\-030](/bulletins/10202728.md), 2021-11-03, Service bulletin: VISIBILITY. SF626 Western Star Window Replacement Inspection Notification. This letter is to inform you that Field Service Campaign SF626 Western Star Window Replacement Inspection Notification campaign was released.
- [SBW54\-080](/bulletins/10198595.md), 2021-06-29, Service bulletin: ELECTRICAL SYSTEM. Western Star Service Bulletin for Key Fob ID Retention. Key fobs for remote keyless entry on Western Star vehicles are delivered in packages that include a unique ID for the fob. The ID is required when pairing the key fob with a vehicle.
- [SS1033094](/bulletins/10195575.md), 2021-06-09, Service bulletin: FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:MANIFOLD PRESSURE \(MAP\) SENSOR. Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
- [WSTCAE180\-2020](/bulletins/10193771.md), 2021-05-18, Service bulletin: EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Portland Truck Plant Paint Changes
- [WI21\-009](/bulletins/10190551.md), 2021-04-24, Service bulletin: ENGINE AND ENGINE COOLING. Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times \(SDTs\) shown. The updated after treatment system \(ATS\) diesel exhaust fluid \(DEF\) pump times will be applied to repair orders opened on or after April 12, 2021.
- [WI21\-008](/bulletins/10190549.md), 2021-04-23, Service bulletin: EQUIPMENT. Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times \(SRTs\) shown. The updated times will be applied to repair orders opened on or after April 5, 2021.
- [WP60\-100](/bulletins/10189335.md), 2021-03-25, Service bulletin: EQUIPMENT. Updated Western Star Parts Technical Bulletin for Universal Design Floor Mats. This bulletin replaces the version dated February 12, 2021. Information about parts notes in the Paragon system have been added and the trimming instructions are revised. Universal floor mat designs fit multiple cab configurations and may require trimming. Trim lines displaying size options are scored into the pad side of the mat; use an existing floor mat as a guide for optimal results. The new mat should not interfere with safety\-critical equipment, such as foot pedals.
- [SBW54\-057](/bulletins/10189332.md), 2021-03-25, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Western Star Service Bulletin for Powernet Troubleshooting Guide \- Batteries, Path, Alternator, and Starter. When troubleshooting powernet issues, use the BCT\-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter is the only Daimler\-approved tool for troubleshooting vehicle Powernet issues.
- [SBW35\-018](/bulletins/10184788.md), 2020-12-30, Service bulletin: POWER TRAIN. Western Star Service Bulletin for Axle Flange Gasket Replaced with O\-Ring. Daimler Trucks North America has released a new axle shaft to hub rubber O\-ring \(part number 11\-30728\-000\) as a replacement for the paper gasket \(part number 11\-14418\-000\). The new O\-ring will provide better sealing and is reusable. It is quicker and easier to use compared to the paper gasket, because using a paper gasket requires cleaning the hub when the axle shaft is removed.
- [WP20\-018R](/bulletins/10184029.md), 2020-12-12, Service bulletin: STEERING; POWER TRAIN. Revised Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. Revisions are in blue. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot parts include transmission, differential, steering gear, and steering pump used in an on\-highway vehicle applications. The Alliance/Mascot aftermarket warranty coverage period has not changed: depending on the part, coverage is for one \(1\) or two \(2\) years and current parts, labor, and reimbursement policies apply.
- [WP20\-018](/bulletins/10183988.md), 2020-12-12, Service bulletin: STEERING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN. Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot parts include transmission, differential, steering gear, and steering pump used in an on\-highway vehicle applications. The Alliance/Mascot aftermarket warranty coverage period has not changed: depending on the part, coverage is for one \(1\) or two \(2\) years and current parts, labor, and reimbursement policies apply.
- [18SP744](/bulletins/10183954.md), 2020-12-08, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Special Publication letter for Two\-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.
- [TechTalk7679](/bulletins/10180382.md), 2020-10-01, Service bulletin: ENGINE AND ENGINE COOLING. Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.
- [TechTalk4725](/bulletins/10180350.md), 2020-09-30, Service bulletin: STEERING; EQUIPMENT. Tech Talk discussion about power steering fluid.
- [20CSA\-15](/bulletins/10179249.md), 2020-09-02, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT. Customer Service Announcement for Release of DiagnosticLink 8.12 Service Pack 2. On Thursday, September 3, 2020, Service Pack \(SP\) 2 for DiagnosticLink 8.12 Standard and Professional will be made available to download from the Detroit Diesel server.
- [20TS\-05](/bulletins/10177692.md), 2020-07-31, Service bulletin: ENGINE AND ENGINE COOLING. Technical Service Letter for EPA10, GHG14, GHG17 Diesel Particulate Filter \(DPF\) Compatibility. Note: This document supersedes 14 TS\-25 and 15 TS\-8. Detroit Diesel has determined that some, Diesel Particulate Filters \(DPFs\) are compatible in pairs and or can be mixed together within EPA10 and GHG14 Systems. For 1\-BOX and Two\-Box Configuration Aftertreatment Systems \(ATS\), this is only possible when the filters are used in accordance with Tables 1 and 2 shown below. All other DPFs, NOT mentioned below, are NOT compatible.
- [TS1033768](/bulletins/10177689.md), 2020-07-31, Service bulletin: SERVICE BRAKES, HYDRAULIC. Training Solution for Western Star Front Brake Squeal \- Burnishing Procedure. The brake burnishing procedure can be used to help reduce brake related noise or imbalance concerns which may occur in the field.
- [TS1033014](/bulletins/10177608.md), 2020-07-31, Service bulletin: EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ENGINE AND ENGINE COOLING. Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines. Occasionally we see trucks come in with fuel leaking from the high pressure fuel pump weep hole. This is NOT a defect in the pump and further diagnostics need to be performed to find the root cause.
- [SBW31\-016](/bulletins/10177605.md), 2020-07-31, Service bulletin: SUSPENSION:REAR; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Western Star Bulletin for Non\-Airliner Rear Suspension Crossmember Fastener Change. With the start of production on March 2, 2020, the fasteners used to assemble the non\-Airliner rear suspension \(bogie\) crossmember have changed. The rear suspension bogie crossmember gussets to the C\-channel will be assembled with 5/8–18 fasteners. This change includes a revision to a higher friction nut that requires an increase in tightening torque. The new higher friction nut can be identified by its green color.
- [SBW60\-027](/bulletins/10177649.md), 2020-07-28, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Service Bulletin for Guidelines for Cleaning and Disinfecting Cab Surfaces. The following guidelines are for cleaning and disinfecting commonly touched surfaces on the inside and outside of a vehicle. For best results, follow cleaning and disinfecting procedures fully and consistently. Ensure there is adequate ventilation when using chemicals. NOTICE: Wipe down fragile components carefully to avoid damaging the vehicle.
- [SBW72\-008REV](/bulletins/10175409.md), 2020-05-23, Service bulletin: STRUCTURE; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. Service Bulletin for Window Regulator Retrofit. The bulletin dated December 4, 2019 has been revised to include 4800 Models. Beginning 04/01/2019 Western Star cab doors were updated to a new style regulator and window. When replacing an older style regulator or window the vehicle must be retrofitted to the new style regulator and window.
- [WI20\-008](/bulletins/10174376.md), 2020-04-28, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Information Letter for Warranty Training Online. DTNA is pleased to announce the release of new Warranty\-related training videos. The videos provide Warranty content in short instructional videos that are available on demand through the AftermarkeTV Video Channel icon on the Aftermarket Resource Center \(ARC\) home page.
- [WP20\-007](/bulletins/10174061.md), 2020-04-23, Service bulletin: EQUIPMENT. Warranty Policy Letter for Chassis Progressive Damage Policy Change. Effective for repair orders opened on or after April 27, 2020, if an Authorized Service Location installed a part which later has a warrantable failure, progressive damage and labor may be covered under the Aftermarket Parts Limited Parts Warranty \(Parts Warranty\).
- [WP20\-006](/bulletins/10174060.md), 2020-04-23, Service bulletin: EQUIPMENT. Warranty Policy Letter for Handling for Authorized Service Location Part Transfers. To promote 24\-hour throughput and maximum efficiency, DTNA is adjusting multiple handling policies: Launching a new handling allowance for parts ordered from another Authorized Service Location because the facing Part Distribution Center \(PDC\) is out of stock Retiring Detroit's Customer First Program

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