Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 2,196 bulletins for CUMMINS
Plant Communi
Nov 20, 2023
060000 ENGINE AND ENGINE COOLING
There is a possibility of loose fuel fitting on the X15 fuel filter head.
TSB210097
Nov 17, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of Repeat Viscous Vibration Damper Capscrew Fracture Malfunctions and Viscous Vibration Damper Replacement. This is an update to the previously submitted com
C2745
Nov 16, 2023
060000 ENGINE AND ENGINE COOLING
This campaign is being issued to address potential concerns with the rubber damper on certain L9 CM2450 L126B engines installed in Temsa applications. This document authorizes certified Cummins repair locations to upfit from the Rubber Damp
TSB220232
Nov 15, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of load Base Speed Control Overwriting the OEM Load Base Speed Control, Causing Limitations in Engine Speed and Producing an Undesired Output as a Result. Th
TSB230209
Nov 9, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of Coolant Thermostat Retarder Loop Bypass Valve Malfunction: External Coolant Leak and Fault Code 235.
ATC2685C
Nov 7, 2023
060000 ENGINE AND ENGINE COOLING
This ATC is being issued to address potential fuel shutoff valve failures on certain ISX12N CM2380 X120B engines. This document authorizes Cummins certified locations to replace fuel shutoff valve part number 5537854 or 5467826 with an impr
TSB230216
Nov 6, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of Soot or Ice Deposits in the Intake Air Connection and Fault Codes: 1866, 3361, 3382, 3389, 7233 and/or 472s.
TSB210032
Nov 3, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of hard start / long crank time with several fault codes. This is an update to the previously submitted communication.
TSB190215
Nov 3, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of misfiring Fault codes: 5914, 5895, 5896, 5897, 5898, 5899, 5911, 6413, 6425, 6426, 6427, 6428, 6429, 6431. This is an update to the previously submitted c
ATC2738
Oct 31, 2023
060000 ENGINE AND ENGINE COOLING
This ATC is being issued to address upper idler gear shaft failures in certain QSX15 CM570 or ISX15 CM570 engines. This ATC authorizes certified repair locations to replace specified gear train components.
C2740
Oct 26, 2023
060000 ENGINE AND ENGINE COOLING
This campaign is being issued to recalibrate the Engine Control Module (ECM) on certain MY2018 - MY2021 ISX CM2250 SN engines. This campaign enables authorized repair locations to recalibrate the ECM to the latest revision. This calibration
ATC2739
Oct 26, 2023
060000 ENGINE AND ENGINE COOLING
This ATC is being issued to address potential DEF Headers failures on certain MR engines installed in Asphalt Zipper applications. This field action authorizes certified repair locations to proactively replace the DEF Header with the approp
ATC2599B
Oct 26, 2023
060000 ENGINE AND ENGINE COOLING
This ATC is being issued to address the backside idler bracket failures in certain L9 CM2350 116B or L9 CM2450 L126B engines in refuse truck applications for Miami Dade. This ATC authorizes certified repair locations to remove the rubber da
TSB230181
Oct 24, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of spark plugs that are within specification or that could have the spark plug gap adjusted to be within specification are being replaced unnecessarily.
TSB230202
Oct 23, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of interference between new Prestolitea?? M128 starting motor and aftertreatment intake NOx sensor bracket.
TSB220010
Oct 18, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of unit taking multiple starting attempts (3+) when ambient temperature drops below 50 A?F.
TSB230200
Oct 17, 2023
110000 ELECTRICAL SYSTEM
This Technical Service Bulletin describes the verification and resolution of issue of Vehicle Electrification System not enabling after Quick Key Cycle.
TSB230190
Oct 2, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of fatigue near crimp connector due to valve crosshead contact with internal actuator wiring harness injector wire.
ATC2685B
Oct 2, 2023
060000 ENGINE AND ENGINE COOLING
This ATC is being issued to address potential fuel shutoff valve failures on certain ISX12N CM2380 X120B engines. This document authorizes Cummins certified locations to replace fuel shutoff valve part number 5537854 or 5467826 with an impr
TSB230193
Oct 2, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This Technical Service Bulletin describes the verification and resolution of issue of false triggering of fault code 14314 when vehicle is charging.
C2566 B
Sep 28, 2023
358320 EQUIPMENT:EMERGENCY:SIREN/LIGHTING/STROBES:WIRING
This Campaign is being issued to update the TMS Inverter Calibration on certain BES CM0904 EV104B units currently in the field. This Campaign authorizes certified technicians to update the TMS Inverter to the latest calibration.
ATC2666 B
Sep 26, 2023
060000 ENGINE AND ENGINE COOLING
This ATC is being issued to replace B6.7G CMOH6.0 E5 cylinder head in certain King Long buses operating in Mexico that could present low cylinder compression due to valve or valve seat leakage. This ATC authorizes approved service locations
TSB220072
Sep 26, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of broken crank case breather tube causing leakage and removal of FC 415. This is an update to the previously submitted communication.
TSB230185
Sep 25, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of FC 7863 on vehicles equipped with Auxiliary Power Units with APU unit on for 8 or more hours and ignition turned off.
TSB230188
Sep 22, 2023
060000 ENGINE AND ENGINE COOLING
This Technical Service Bulletin describes the verification and resolution of issue of Internal Debris in The Old Style Aftertreatment DPF Differential Pressure Sensor by using new style aftertreatment DPF differential pressure sensor.