NHTSA ID Number: 10169287
Manufacturer Communication Number: TSB170022-111120
TSB/Document Date: 2019-12-16
Summary
This Technical Service Bulletin describes the release of a Steel Piston and Aluminum Piston Kit. The new steel piston replaces the original aluminum piston for select ISL G CM2180 models for improved piston durability. This is an update to a previously submitted communication.
11/21/2019
Steel Piston and Aluminum Piston Kit Introduction
Technical Service Bulletin
Technical Service Bulletin: TSB170022
Released Date: 11-Nov-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
Steel Piston CPL
Group 1
887
5579235
897
5579235
3297
5579235
3517
5579235
3518
5579235
3519
5579235
5232
Group 2
4835
5579235
4836
5579235
4926
5579235
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5579
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Steel Piston and Aluminum Piston Kit Introduction
Table 3, Aluminum Piston to Steel Piston Conversion by CPL
Aluminum Piston CPL
Steel Piston Upgrade Kit
Part Number
Steel Piston CPL
Group 1
Additional Parts Required for engines in Table 3, Group 2 Only
Part Description
Part Number
Quantity
Module, Engine Control
5491911
1
Valve, Pressure Regulator
5477889
1
Table 4, Aluminum Piston to Aluminum Piston by CPL
Aluminum Piston CPL
Aluminum Piston Kit Part Number
3205
5406108
3235
5406108
4177
5406108
4352
5406108
4365
5406108
4715
5406108
4818
5406108
4819
5406108
Table 5, ECM Calibration Code Cross-Reference
Original ECM Code
AW90001
AW90160
AW90002
AW90154
AW90003
AW90171
AW90004
AW90140
AW90005
AW90146
AW90006
AW90161
AW90007
AW90150
AW90013
AW90162
AW90014
AW90144
AW90015
AW90172
AW90016
AW90145
AW90017
AW90163
AW90023
AW90151
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Steel Piston and Aluminum Piston Kit Introduction
Table 5, ECM Calibration Code Cross-Reference
Original ECM Code
AW90024
AW90141
AW90025
AW90167
AW90026
AW90147
AW90027
AW90142
AW90028
AW90156
AW90029
AW90164
AW90030
AW90152
AW90031
AW90175
AW90032
AW90173
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TSB/Document ID: TSB170022-111120
Replacement Service Bulletin Number:
MFR Communication Date: 2019-11-11
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
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