NHTSA ID Number: 10164728
Manufacturer Communication Number: TSB170022-083020
TSB/Document Date: 2019-09-16
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.
Steel Piston and Aluminum Piston Kit Introduction
Page 1 of 9
Technical Service Bulletin
Technical Service Bulletin:
Released Date: 30-Aug-2019
TSB170022
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
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Steel Piston and Aluminum Piston Kit Introduction
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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:
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.
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Steel Piston and Aluminum Piston Kit Introduction
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Figure 1, Steel Piston Authorized Change Label.
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
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
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Steel Piston and Aluminum Piston Kit Introduction
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Table 2, Steel Piston Upgrade Kit, Part Number 5579235, Contents
Part Description
Part Number
Quantity
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
5472934
897
5472934
3297
5472934
3517
5472934
3518
5472934
3519
5472934
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
4177
5406108
4352
5406108
4365
5406108
4715
5406108
4818
5406108
4819
5406108
4835
5406108
4836
5406108
4926
5406108
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Steel Piston and Aluminum Piston Kit Introduction
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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
AW90024
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TSB/Document ID: TSB170022-083020
Replacement Service Bulletin Number:
MFR Communication Date: 2019-08-30
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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