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Technical Service Bulletins

Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.

172,063 Unique Bulletins
4,686,952 Total Records
879 Vehicle Makes
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Showing 449 bulletins for ALLISON

2021FA06 Oct 29, 2021
ALLISON - TRANSMISSION
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
Announces field action to re-calibrate the TCM.
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WATCH543Rev C Sep 23, 2021
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION , 4 vehicle combinations
100000 POWER TRAIN
Announces release of new control software and compatibility
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14TR21Rev A Sep 16, 2021
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION, B SERIES, T SERIES , 6 vehicle combinations
100000 POWER TRAIN
Notice concerning 6th generation TCM release
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ST1099Rev X Sep 8, 2021
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION, ALLISON DIV, B300, H 40 EP TRANSMISSION, H 50 EP TRANSMISSION, T SERIES , 9 vehicle combinations
100000 POWER TRAIN
Service tip notice related to transmission fluid and filter change recommendations
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10TR99Rev X Sep 4, 2021
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION, B300, H 40 EP TRANSMISSION, H 50 EP TRANSMISSION, T SERIES , 8 vehicle combinations
100000 POWER TRAIN
Details transmission fluid types and service intervals
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14TR21 Sep 3, 2021
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION, B SERIES, T SERIES , 6 vehicle combinations
100000 POWER TRAIN
Notice concerning 6th generation TCM release
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SIL08EP21 Aug 24, 2021
ALLISON - B SERIES, B300, B300 SERIES TRANSMISSION, B400 SERIES TRANSMISSION, H 40 EP TRANSMISSION, H 50 EP TRANSMISSION, T SERIES , 7 vehicle combinations
100000 POWER TRAIN
Announces design change in H40/50 EP Input Damper and Damper Hub Part
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SIL11WT21 Aug 19, 2021
ALLISON - 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION, B SERIES, H 50 EP TRANSMISSION, T SERIES , 5 vehicle combinations
100000 POWER TRAIN
Notice concerning carrier indexing rings that could be darker in color, but no dimensional changes or changes to stamped identification
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SIL22WT20 Rev A Aug 4, 2021
ALLISON - H 40 EP TRANSMISSION, H 50 EP TRANSMISSION , 2 vehicle combinations
100000 POWER TRAIN
Announces running changes to torque converters and new service kits
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SIL 07-1K2K-21 R Jul 30, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Announces new design of C1 Clutch
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SIL 09-1K2K-21 Jul 9, 2021
ALLISON - TRANSMISSION , 2 vehicle combinations
100000 POWER TRAIN
Notice seeking return of torque converter attachment lug weld
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SIL 04 WT 17EN R Jun 4, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Announces new transmission breather using an outer hex design and details for servicing the new design.
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SIL 07-1K2K-21EN May 28, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Announces new design of C1 Clutch
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06-1K2K-21 May 27, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Announces a temporary change in color for resin part
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IS 367 Rev B May 25, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Instructions to help select the appropriate end cap O-rings and assembly process
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SIL 06-EP-19 Rev May 13, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Announces a temporary change in color for resin part
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2019FA07 Rev F Apr 9, 2021
ALLISON - TRANSMISSION
160000 STRUCTURE
Announces campaign to replace the TIDB main valve body for parts that present specific symptoms
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2019FA08 Rev E Apr 9, 2021
ALLISON - TRANSMISSION
160000 STRUCTURE
Announces campaign to replace the TIDB main valve body for parts that present specific symptoms
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TT8136 Rev A Mar 25, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Tip for technicians to avoid a conflict with the engine controller when re-programming the transmission
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KC-900 Mar 19, 2021
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION, VOLVO TRUCK , 10 vehicle combinations
100000 POWER TRAIN
Volvo Chassis - Procedure To Request To Have The Allison Transmission 6TH Speed Enabled
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TT8834 Mar 19, 2021
ALLISON - TRANSMISSION
110000 ELECTRICAL SYSTEM
Tech tip for servicing stalk switch control and driver information center in certain DTNA models
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2020FFA05 Rev A Mar 18, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Notice authorizing companies that they can perform a focused field action for the C1 drive hub in B 500 and 4000 MH model transmissions
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ST8835 Mar 12, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Service tip regarding use of certain chemical compounds that should be avoided when disinfecting the shift-selector bezel
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IS 368 Mar 10, 2021
ALLISON - TRANSMISSION
350000 EQUIPMENT
Instruction sheet for service kit for remote floating bundle oil coolers
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SIL 04-TR-21 Mar 10, 2021
ALLISON - TRANSMISSION
100000 POWER TRAIN
Announces release of equivalent Remote, Floating Bundle Oil Coolers as an alternative to available versions
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