Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,196 bulletins for CUMMINS
TSB190153
Feb 6, 2023
160000 STRUCTURE
This Technical Service Bulletin describes the verification and resolution of incorrect part number structured in QSOL. Incorrect non-vented VGT is ordered instead of vented VGT actuator. Use Service Part for ordering correct part number. Th
TSB210065
Feb 1, 2023
070000 FUEL SYSTEM, GASOLINE
This Technical Service Bulletin accounces the introduction of new valve stem seal design that has been optimized for improved blowby and oil control for natural gas engine intake manifold pressures and includes the valve spring guide and is
TSB230016
Feb 1, 2023
060000 ENGINE (PWS)
This Technical Service Bulletin describes the verification and resolution of Fault codes 144, 145 , 2373 and 2374 caused by rubbing of cooling fan belt against the engine wiring harness.
ATC2667
Jan 31, 2023
070000 FUEL SYSTEM, GASOLINE
This ATC is being publies to address Water Pump issues on Certain ISB6.7 powered NIMR units
TSB230013
Jan 24, 2023
060000 ENGINE AND ENGINE COOLING
This technical service bulletin was issued for A motor high temperature error can display on the instrument cluster.Root Cause: When in the closed position the OEM coolant valve restricts coolant flow through the high voltage propulsion mo
TSB230012
Jan 24, 2023
280000 BACK OVER PREVENTION
This technical service bulletin was issued for Symptom: ?Cycle the key switch? message appears immediately, and test will not display any results when technician performs Aftertreatment Intake NOx Sensor Test or Aftertreatment Outlet NOx S
TSB220228
Jan 19, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes customer complaint of no start. This is due to contaminants in the fuel system clogging the injector which causes no fuel to enter the cylinder and preventing the generator from starting.
80495389
Jan 18, 2023
095100 FUEL SYSTEM, OTHER:KINETIC:FLYWHEEL,BEARINGS
This is a representative communication from the engine manufacturing plant to an OEM customer vehicle plant regarding inspection of Cummins X15 flywheel torque. There is an issue with the fly torque spindle unit that torques 4 capscrews i
T2595
Jan 17, 2023
280000 BACK OVER PREVENTION
This Temporary Repair Practice is being issued to address Engine Outlet NOx Sensor failures on certain ISX15 CM2350 X101 engines. This TRP authorizes certified repair locations to replace the Engine Outlet NOx Sensor if fault codes or troub
C2419
Jan 17, 2023
030000 SERVICE BRAKES, HYDRAULIC
This campaign is being issued to recalibrate the Engine Control Module (ECM) and update the ECM Code on certain MY2017 - 2019, L9 CM2350 engines in True Series Hybrid bus applications with BAE Transmission systems. This campaign enables aut
T2620
Jan 17, 2023
280000 BACK OVER PREVENTION
This Temporary Repair Practice is being issued to address Engine Outlet NOx Sensor failures on certain X15 CM2350 X114B engines. This TRP authorizes certified repair locations to replace the Engine Outlet NOx Sensor if fault codes or troubl
C2241
Jan 17, 2023
030000 SERVICE BRAKES, HYDRAULIC
This campaign is being issued to recalibrate the Engine Control Module (ECM) and update the ECM Code on certain MY2013 - 2016, ISB6.7 CM2350 engines in True Series Hybrid bus applications with BAE Transmission systems. This campaign enables
6316754
Jan 13, 2023
030000 SERVICE BRAKES, HYDRAULIC
This is a representative communication from the engine manufacturing plant to an OEM customer vehicle plant regarding fuel leak on remote fuel line (low pressure side)
ATC2651
Jan 12, 2023
175200 LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK
This ATC is being issued to replace the Front Gear Cover on certain B6.7 powered buses.
C2635
Jan 12, 2023
110000 ELECTRICAL SYSTEM
This technical service bulletin enables authorized repair locations to replace the SCR module on certain B6.7 and L9 MY2022 systems. The updated parts may improve the aftertreatments emissions performance.
TSB150002
Jan 10, 2023
070000 FUEL SYSTEM, GASOLINE
This Technical Service Bulletin describes the verification and resolution of Diesel Exhaust Fluid (DEF) cleanliness. DEF contamination is one of the primary contributors of aftertreatment related component malfunction.
TSB220262
Jan 2, 2023
060000 ENGINE AND ENGINE COOLING
This technical service bulletin was issued for Issue of Metal debris can be present in the dirty (inlet) side of the stage 2 fuel filter of units below 12,070 km [ 7500 miles ] or 250 hours. Root Cause:Debris on the dirty (inlet) side of
80490995
Dec 23, 2022
060000 ENGINE AND ENGINE COOLING
This is a representative communication from the engine manufacturing plant to an OEM customer vehicle plant regarding gear cover strip seal. The customer is asked to allow technicians to replace the gear cover strip seal with the proper se
TSB220259
Dec 20, 2022
100000 POWER TRAIN
This Technical Service Bulletin describes the verification and resolution of the HMI320 screen displaying start up message'establishing communication', Fault Code FS1689 - reset Real Time Clock and Fault Code FC 2895 - PCC Net device failed
TSB210251
Dec 20, 2022
114000 ELECTRICAL SYSTEM:WIRING
This Technical Service Bulletin was issued for a fault code of 3559. The cause of this is to be deterimend the OEM wiring connector to the aftertreatment DEF dosing unit is loose at the back of the connector at the weather pack seal. Need
TSB180071
Dec 19, 2022
030000 SERVICE BRAKES, HYDRAULIC
"This Technical Service Bulletin (TSB) describes the verification and resolution of the fuel pump actuator housing and fuel pump actuator - air bleed check valve becoming contaminated with debris. Debris accumulation prevents fuel flow to d
ATC2662
Dec 15, 2022
117100 ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
This ATC was issued to address Speed Indicator Ring (tone wheel) capscrew failures.
ATC2663
Dec 15, 2022
062000 ENGINE AND ENGINE COOLING:COOLING SYSTEM
This ATC was issued to address leaks from aluminum oil cooler on certain ISL G CMI 2180 engines. This field action authorizes locations to proactively replace the aluminum oil cooler with a stainless steel oil cooler.
TSB220250
Dec 7, 2022
030000 SERVICE BRAKES, HYDRAULIC
This Technical Service Bulletin describes the verification and resolution of Fault Code 1881, 1883, 3133, 3134, 3135, 5715, 5716, and/or 6786 active or has more than one inactive count within the last25 engine operating hours along with Fau
TSB220251
Dec 7, 2022
080000 FUEL SYSTEM, DIESEL
This Technical Service Bulletin was issued for Bosch? Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Unit Replacement for Fault Code 3559.