WenmarOpen by Wenmar Pro

Service bulletins for the 2013 Western Star 5700

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.

326 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
ICI22-0172022-05-03. Service bulletin. POWER TRAIN. Important Campaign Information Letter for DDC D21M1 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M1, DT12 Transmission Drive Shaft Cover Plug Reseal has been EXTENDED for an additional three months. Please use the extended termination date for all work under D21M1 from this point forward. REVISION: D21M1 termination date extended to July 1, 2022.
WP20-018R2020-12-12. 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.
WP20-0182020-12-12. 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.
SBW26-0052020-12-07. Service bulletin. POWER TRAIN. Revised Western Star Service Bulletin forDT12 PTO Upfit. This bulletin replaces the version dated 09/23/2019. DDCSN and Power Service Literature references have been removed.
SB26-0052019-09-28. Service bulletin. POWER TRAIN. Service Bulletin for DT12 PTO Upfit
SB26-0042019-09-28. Service bulletin. POWER TRAIN. Service Bulletin for DT12 Transmission Cooler Retrofit
19TL-132019-09-09. Service bulletin. POWER TRAIN; EQUIPMENT. Tool Letter for DT12 Seal Protector Sleeve
D18M42019-09-07. Service bulletin. POWER TRAIN. Field Service Campaign for Remanufactured Detroit DT12 Transmissions
sbw26005 DT12 PT2019-04-08. Service bulletin. POWER TRAIN. Service Bulletin- sbw26005 DT12 PTO Upfit
0604-172019-04-08. Service bulletin. POWER TRAIN. SPN 712 (CPC) (GHG17)
sbw26005 DT12 PT2019-04-01. Service bulletin. POWER TRAIN. Service Bulletin- sbw26005 DT12 PTO Upfit
0109-192019-03-11. Service bulletin. POWER TRAIN. Service Information Bulletin- Input Shaft Pilot Bearing Measurement Specification
Detroit DT122019-03-11. Service bulletin. POWER TRAIN; POWER TRAIN:MANUAL TRANSMISSION; EQUIPMENT. Detroit DT12 Split Rod Bushing Repair letter to customer
DOC-10336992018-12-10. Service bulletin. POWER TRAIN. TS 1033699: DT12 Transmission Driver Interview: Shifting Complaint Questionnaire
DOC-10334462018-12-10. Service bulletin. POWER TRAIN. Vehicles with Meritor drivelines bene from a softer durometer center bearing support. Vehicle will continue to have a 1st order driveline vibration after the driveline assembly was rebalanced.
DOC-10334462018-10-29. Service bulletin. POWER TRAIN. SS1033446 Driveline Support Bearing - Meritor Driveline
0405-182018-10-01. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:COLUMN SHIFT ASSEMBLY; POWER TRAIN. 0405-18 Symptom Diagnostics - Range Up or Down Shift Issue
0405-182018-06-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 0405-18 Symptom Diagnostics - Range Up or Down Shift Issue
15TS152018-06-11. Service bulletin. POWER TRAIN. 15TS15Rev Detroit? DT12? Transmission Proper Towing Procedure
802-152018-06-11. Service bulletin. POWER TRAIN. 802-15 SPN 520970 FMI 7 (TCM)
801-152018-06-11. Service bulletin. POWER TRAIN. 801-15 SPN 520999 FMI 7 (TCM)
1104-172018-06-11. Service bulletin. POWER TRAIN. SPN 520960 (TCM)
1112-172018-06-11. Service bulletin. POWER TRAIN. Installation of the Transmission
1111-172018-06-11. Service bulletin. POWER TRAIN. Removal of the Transmission
0312-182018-06-11. Service bulletin. POWER TRAIN. 0312-18 Installation Output Shaft Seal

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.