TSB170022-101020

10/14/2019
Steel Piston and Aluminum Piston Kit Introduction
Technical Service Bulletin
Technical Service Bulletin: TSB170022
Released Date: 10-Oct-2019
Steel Piston and Aluminum Piston Kit Introduction
Steel Piston and Aluminum Piston Kit Introduction
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
ISL G CM2180
Description of Change
New steel and aluminum piston kits have been released.
The new steel piston replaces the original aluminum piston for select ISL G CM2180 models.
Reason for Change
Improved piston durability.
Customer Communication
Customers who operate 320 hp engines may experience a reduction in power when cruising at
high rpm.
Service Instructions
 CAUTION 
Use of an aluminum piston engine control module (ECM ) calibration code in an engine
with steel pistons will create an uncertified engine configuration and can result in
inconsistent and undesirable engine behavior, and possible engine damage.
Note : Some engines with specific control parts lists (CPL) are not able to be converted
to steel pistons at this time and must continue to use aluminum pistons. Reference the
Service Parts section below for more information.
Warranty Considerations:
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Steel Piston and Aluminum Piston Kit Introduction
For warrantable piston replacements requiring the upgrade of aluminum pistons to steel pistons,
steel piston upgrade kit, Part Number 5472934 or Part Number 5579235, must be used.
Components replaced as directed in this document are not to be inspected for reuse.
Installation of Aluminum Pistons:
See Table 1 for aluminum piston kit part number and kit contents.
See Table 4 for a list of CPLs that must use aluminum pistons.
Conversion from Aluminum Pistons to Steel Pistons:
See Table 2 below for steel piston part numbers and steel piston upgrade kit contents.
See Steel Piston Installation Instruction, Bulletin 5414627, supplied with the steel piston
upgrade kit.
See Table 3 for a list of CPLs that are required to use the steel piston upgrade kit when being
converted from aluminum to steel pistons.
Except for the upper and lower gasket kits, all parts in the steel piston upgrade kit must be
used during the conversion from aluminum pistons. Gaskets that are not required for the
repair of the engine, such as the rear main seal may be discarded.
When changing from aluminum to steel pistons, an updated ECM calibration code must be
installed. Reference Table 5 for ECM calibration code information.
When changing from aluminum to steel pistons, the CPL number will change.
Upon completion of the conversion from aluminum to steel pistons, an authorized change
label, Part Number 5297400 must be completed and installed on the engine. See Figure 1
below.
Figure 1, Steel Piston Authorized Change Label.
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Steel Piston and Aluminum Piston Kit Introduction
Service Parts Availability
Table 1, Aluminum Piston Kit, Part Number 5406108, Contents
Part Description
Part Number
Quantity
Ring, Retaining
3920692
2
Pin, Piston
3934046
1
Set, Piston Ring
4025290
1
Piston, Engine
5311086
1
Table 2, Steel Piston Upgrade Kit, Part Number 5579235, Contents
Part Description
Part Number
Quantity
Kit, Liner
5404408
6
Bearing, Connecting Rod
3950661
12
Kit, Lower Engine Gasket
4089889
1
Kit, Upper Engine Gasket
4352349
1
Kit, Piston Ring
5406026
6
Kit, Engine Piston*
5406084
6
Stainless Steel Oil Cooler
5477432
1
Label, Authorized Change
5297400
1
*Kit Includes Piston Cooling Nozzle, Part Number 5341745.
Table 3, Aluminum Piston to Steel Piston Conversion by CPL
Aluminum Piston CPL
Steel Piston Upgrade Kit
Part Number
887
5579235
897
5579235
3297
5579235
3517
5579235
3518
5579235
3519
5579235
Steel Piston CPL
5232
Table 4, Aluminum Piston to Aluminum Piston by CPL
Aluminum Piston CPL
Aluminum Piston Kit Part Number
3205
5406108
3235
5406108
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Steel Piston and Aluminum Piston Kit Introduction
Table 4, Aluminum Piston to Aluminum Piston by CPL
Aluminum Piston CPL
Aluminum Piston Kit Part Number
4177
5406108
4352
5406108
4365
5406108
4715
5406108
4818
5406108
4819
5406108
Table 5, ECM Calibration Code Cross-Reference
Original ECM Code
Steel Piston ECM Code
AW90046
AW90128
AW90047
AW90130
AW90048
AW90165
AW90049
AW90131
AW90050
AW90133
AW90051
AW90166
AW90052
AW90134
AW90053
AW90153
AW90054
AW90136
AW90055
AW90138
AW90056
AW90170
AW90073
AW90126
AW90074
AW90174
AW90075
AW90129
AW90076
AW90149
AW90077
AW90132
AW90078
AW90139
AW90079
AW90135
AW90080
AW90169
AW90081
AW90137
AW90082
AW90159
Part Compatibility
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Certain engines, based on CPL, are required to upgrade to steel pistons if piston replacement
is required. When upgrading to steel pistons, steel piston upgrade kit, Part Number 5579235,
must be used. All other engine CPLs must use aluminum pistons. Reference Table 3 and
Table 4.
Steel piston and aluminum piston part numbers are not to be mixed in the same engine.
Publications Affected
Table 6, Publications Affected
Manual Type
Service
Manual
Engine
ISL G
CM2180
Bulletin
Number
Procedure
Title
Procedure
Section
Piston
Cooling
Nozzle
Refer to
Procedure
001-046
(/qs3/pubsys
2/xml/en/proc
edures/45/45
-001-046-trislg.html)
1
Piston
Refer to
Procedure
001-043
(/qs3/pubsys
2/xml/en/proc
edures/45/45
-001-043-trislg.html)
1
Piston Rings
Refer to
Procedure
001-047
(/qs3/pubsys
2/xml/en/proc
edures/45/45
-001-047-trislg.html)
1
Lubricating
Oil Cooler
Refer to
Procedure
007-003
(/qs3/pubsys
2/xml/en/proc
edures/45/45
-007-003-trislg.html)
7
4021649
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Steel Piston and Aluminum Piston Kit Introduction
Document History
Date
Details
2017-2-20
Module Created
2017-3-30
Updated part numbers.
2017-4-13
Added Warranty Considerations Section.
2017-4-24
Updated name of kit.
2017-6-27
Added note for part number 5406084.
2017-7-12
Added statement: Components replaced as directed in this document
are not to be inspected for reuse.
2017-10-9
Replaced part number 5406086 with part number 5472934 and part
number 3800328 with part number 5404408.
2019-8-27
Added steel piston upgrade kit, Part Number 5579235. Added
stainless steel oil cooler, Part Number 5477432.
2019-9-17
Updated Steel Piston Upgrade Kit Part Number from 5472934 to
5579235.
2019-9-30
Updated Table 2, 3, 4, and 5.
2019-10-3
Updated CPL typo in Table 3.
2019-10-10
Removed part numbers and calibrations.
Last Modified: 10-Oct-2019
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