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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

SIL 09-1K2K-22 Jun 1, 2022
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION , 4 vehicle combinations
020000 SUSPENSION
P2 Carrier Bushing Removal and Installation.
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IS 373 Jun 1, 2022
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION , 4 vehicle combinations
020000 SUSPENSION
P2 Carrier Bushing Removal and Installation.
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SIL 08-TR-22 May 27, 2022
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION , 8 vehicle combinations
060000 ENGINE AND ENGINE COOLING
Servicing tip for vehicles with DTC P0602
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SIL 04-1k2k-22 R May 19, 2022
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION , 4 vehicle combinations
102650 POWER TRAIN:MANUAL TRANSMISSION:INTERNAL:GEARS
Announces changes to the sun gear and thrust bearing
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SIL 09-1K2K-21 R May 6, 2022
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION , 4 vehicle combinations
103700 POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
Notice seeking return of torque converter attachment lug weld
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GPRN 2022-03 May 3, 2022
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION, B SERIES, T SERIES , 6 vehicle combinations
118000 ELECTRICAL SYSTEM:SOFTWARE
Announces updating software calibration
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WATCH 590 May 3, 2022
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION , 4 vehicle combinations
118000 ELECTRICAL SYSTEM:SOFTWARE
Announces release of software update for 6th generation controls
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SIL 05-TR-22 Apr 29, 2022
ALLISON - TRANSMISSION
350000 EQUIPMENT
Announces release of a redesigned output shaft.
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SIL 06-WT-22 Apr 13, 2022
ALLISON - TRANSMISSION
030000 BRAKES (PWS)
Announces update to torque converter clutch valve and pressure control solenoid that is backward compatible
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TI8807 Rev Z Mar 25, 2022
ALLISON - TRANSMISSION
100000 POWER TRAIN
Provides service tips for transmission fluid types and service intervals
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2022FA01 Mar 10, 2022
ALLISON - TRANSMISSION , 2 vehicle combinations
103100 POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
Announces recalibration of the TCM with instructions
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SIL 06-WT-04 Rev Feb 28, 2022
ALLISON - 4000 SERIES TRANSMISSION, TRANSMISSION , 2 vehicle combinations
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
Announces the release of several new re-trans products, including interchangeability
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SIL 06-WT-03 Rev Feb 28, 2022
ALLISON - 3000 SERIES TRANSMISSION, TRANSMISSION , 2 vehicle combinations
100000 POWER TRAIN
Announces release of new ReTran assembly
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IS355 Rev B Feb 24, 2022
ALLISON - 4000 SERIES TRANSMISSION, TRANSMISSION , 2 vehicle combinations
103230 POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:FILTER/SCREEN
Transmission Fluid and Filter Change Procedure
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WATCH 587 Feb 11, 2022
ALLISON - TRANSMISSION
280100 BACK OVER PREVENTION:SOFTWARE
Announces release of new software controls
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SIL 08-EP-21 Rev Feb 3, 2022
ALLISON - H 40 EP TRANSMISSION, H 50 EP TRANSMISSION, TRANSMISSION , 3 vehicle combinations
350000 EQUIPMENT
Announces design change in H40/50 EP Input Damper and Damper Hub Part
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TT8937EN Jan 21, 2022
ALLISON - 2000 SERIES TRANSMISSION, 3000 SERIES TRANSMISSION, 4000 SERIES TRANSMISSION , 6 vehicle combinations
110000 ELECTRICAL SYSTEM
Provides technical tip related to a improper calibration setting in the stalk switch controls
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SIL01WT22 Jan 12, 2022
ALLISON - 4000 SERIES TRANSMISSION , 2 vehicle combinations
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
Announces change to output shaft for both the rear cover and retarder modules
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2021FA08 Jan 11, 2022
ALLISON - 4000 SERIES TRANSMISSION , 2 vehicle combinations
060000 ENGINE AND ENGINE COOLING
Announces service campaign related to the torque converter lockup piston in certain dump trucks
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SIL101K2K21 Rev Dec 23, 2021
ALLISON - H 50 EP TRANSMISSION , 3 vehicle combinations
060000 ENGINE AND ENGINE COOLING
Announces updated design for the retaining ring for the balance piston retention in the C1 piston housing
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SIL20WT21 Dec 1, 2021
ALLISON - 1000 SERIES TRANSMISSION
100000 POWER TRAIN
Announces a change in part processing that leaves the part visibly darker than the former part
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SIL17TR21 Nov 19, 2021
ALLISON - TRANSMISSION , 2 vehicle combinations
060000 ENGINE AND ENGINE COOLING
Announces temporary change to compound used in O-ring.
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SIL071K2K21 Rev Nov 18, 2021
ALLISON - 1000 SERIES TRANSMISSION, 2000 SERIES TRANSMISSION , 4 vehicle combinations
100000 POWER TRAIN
Announces new design of C1 Clutch.
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18TR21 Nov 12, 2021
ALLISON - TRANSMISSION , 3 vehicle combinations
100000 POWER TRAIN
Service information announcing that the standard duty retarder rotor will be replaced by the heavy duty retarder rotor.
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SIL101K2K21 Nov 12, 2021
ALLISON - TRANSMISSION , 2 vehicle combinations
060000 ENGINE AND ENGINE COOLING
Announces updated design for the retaining ring for the balance piston retention in the C1 piston housing.
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