TAIB0878

Service Bulletin – Product
Subject: Engine Flywheel Housing Requirements and Fault Code 250 – Endurant HD
and PACCAR Transmission
Document Number: TAIB-0878
Updated: May 17, 2021
Updated: July 22, 2019
Issue Description:
Customers may experience Transmission Control Module (TCM) fault codes and
transmission performance complaints after replacing the engine, engine flywheel
housing, clutch, or transmission.
TCM may report fault codes:
Fault Code
SPN
FMI
250
33
7
250
33
9
Description
Linear Clutch Actuator Position
Linear Clutch Actuator Position
The Endurant Transmission requires a specific engine flywheel housing to ensure the
correct Split Dimension. The Split Dimension is the distance from the engine flywheel
machined surface to the engine flywheel housing where the transmission clutch
housing attaches.
Affected Models/Population:
• Endurant HD Transmissions
• PACCAR Transmissions
Field Strategy:
1. If the engine or engine flywheel housing requires replacement, contact the
OEM and/or engine manufacturer to identify the engine flywheel housing part
number based on the transmission model.
2. To verify the correct engine flywheel housing is installed, measure the Split
Dimension and reference the chart below:
3. Fault Code 250 may also be set if the incorrect clutch release bearing is
installed. Reference TRSM0950 for release bearing dimensions.
4. Fault Code 250 may also be set if a replacement transmission has the incorrect
input shaft dimension. Reference TRSM0950 for input shaft dimensions and
service transmission identification.
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Service Bulletin – Product
OEM
Navistar
Navistar
PACCAR*
PACCAR
Volvo
DTNA
DTNA
All
Endurant and PACCAR Transmissions
x (Split Dimension)
Engine
Details
mm
in
65.70-67.59 2.59-2.66
A26
65.70-67.59 2.59-2.66
X15
66.645mm
(+/-0.9445)
MX13/15 65.70-67.59 2.59-2.66
65.70-67.59 2.59-2.66
X15
59.8
2.35
X15
59.8
2.35
X15
57.9mm (+/-1.27)
DD13/15 56.63-59.17 2.23-2.33
UltraShift PLUS/Fuller Advantage Automated
All
63.50
2.50
Note: *PACCAR Transmission
Note: Reference TRSM0950 Endurant Service Manual for the latest Endurant HD
Service Manual link and OEM specific service parts.
Warranty Information:
Informational only.
The material contained in this bulletin is product improvement information. Eaton Corporation is not committed to,
FSUD: 2019-FSUD-2774
or liable for, canvassing existing products.
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