TSB190152-082120

Lubricating Oil Filter Head Pipe Plug Lubricating Oil Leak
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Technical Service Bulletin
Technical Service Bulletin:
Released Date: 21-Aug-2019
TSB190152
Lubricating Oil Filter Head Pipe Plug Lubricating Oil Leak
Lubricating Oil Filter Head Pipe Plug
Lubricating Oil Leak
Warranty Statement
The information in this document has no effect on present warranty coverage or repair
practices, nor does it authorize TRP or Campaign actions.
Contents
Product Affected
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ISC CM850
ISL CM850
ISL G CM2180
ISL9 CM2150 SN
ISL9 CM2350 L101
L9 CM2350 L116B
L9 CM2350 L120C
L9 CM2450 L126B
L9N CM2380 L124B
QSC8.3 CM850 (CM2850)
QSL9 CM2250
QSL9 CM2350 L102
QSL9 CM2350 L107
QSL9 CM850 (CM2850)
QSL9 M CM2250 L106
Issue
Symptom:
• Lubricating oil leaking from the pipe plug of the lubricating oil filter head.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190152.html
8/22/2019
Lubricating Oil Filter Head Pipe Plug Lubricating Oil Leak
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Root Cause:
• Factory threaded milling process introduced ovality to the lubricating oil filter head
pipe plug bore.
Verification
• Verify lubricating oil filter head is part number 5450366.
• Verify lubricating oil filter pipe plug part number is 4933532
• ESN suspect range: 74258306 to 74503500
Resolution
• Torque the lubricating oil filter head pipe plug to 85 N•m [ 63 ft-lb ].
• No additional sealant is needed.
Production Status
Implemented for production. See Table 1.
Table 1, Production Information
74510923
Rocky Mount Engine
Plant
17 May 2019
Engine build date can be found on engine dataplate.
1
Document History
Date
2019-8-21
Details
Module Created
Last Modified: 21-Aug-2019
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2019/tsb190152.html
8/22/2019