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NHTSA ID Number: 10086321

Manufacturer Communication Number: C1744D

TSB/Document Date: 2016-12-15


Summary

THIS IN-SHOP CAMPAIGN PROVIDES AUTHORIZATION FOR CERTIFIED REPAIR LOCATIONS TO REMOVE AND REPLACE THE COOLANT LEVEL SENSORS ON CERTAIN ISL9 CM2350 ENGINES IN TRANSIT BUS APPLICATIONS WHILE THE UNIT IS IN FOR ANY MAINTENANCE OR REPAIR. SENSOR PART NUMBER 2872933 MAY EXPERIENCE PIN CORROSION AS THE RESULT OF INADEQUATE SEALING PERFORMANCE OF THE ELECTRICAL CONNECTOR. THIS ACTION REPLACES THE SENSOR AND ELECTRICAL CONNECTOR, PROVIDING IMPROVED PROTECTION AGAINST MOISTURE INTRUSION. THIS IS AN UPDATE TO A PREVIOUSLY SUBMITTED COMMUNICATION.


In-Shop Campaign, ISL CM2350 Transit Application Coolant Level Sensor

Campaign Number
C1744

Revision Level
D

Date
17-MAY-2016

Expiration Date (U.S. and Canada)
01-JAN-2017

Page 1 of 3

Group Number

Expiration Date (InternationaleBay logo)
01-JAN-2017

Warranty Field Campaign
In-Shop Campaign, ISL CM2350 Transit Application
Coolant Level Sensor
Attention

U.S / Canadian Distr./Branches and Div. Offices

This is to revise and replace Campaign 1744-C, dated 15-Apr-2016. This revision is to:
1. Add clarifying narrative, and
2. Add an Attachment B.
If additional information is required, contact your CumminseBay logo Warranty Operations Group
Leader.

Description
This In-Shop Campaign provides authorization for certified repair locations to remove and
replace the coolant level sensors on certain ISL9 CM2350 engines in transit bus applications
while the unit is in for any maintenance or repair. Certain restrictions on reimbursement apply.
Please refer to the Reimbursement section below.
Sensor Part Number 2872933 may experience pin corrosion as the result of inadequate
sealing performance of the electrical connector. This action replaces the sensor and electrical
connector, providing improved protection against moisture intrusion.

https://qsol.cummins.com/qs3/pubsys2/xml/en/campaign/2017/c1744.html

6/1/2016

In-Shop Campaign, ISL CM2350 Transit Application Coolant Level Sensor

Page 2 of 3

Action
In order to qualify for repair under this field action, an engine:
1.
2.
3.
4.

will be covered Regardless of coverage status, and
must be on the attached ESN list, and
must be in a transit bus application, and
Owner must be agree to replace the sensors mating connector with a solder splice, if
required.
NOTE: NovaeBay logo Bus applications MUST use a new OEM supplied wire harness, the
solder splice kit is not applicable for this repair. The cost of the OEM supplied wire
harness is not covered by this field action.

After verifying that the engine meets the above requirements, perform the following actions:
1. There are two repair scenarios for this repair. Nova BuseBay logo applications are to use sensor
Part Number 4384457 and a new OEM supplied wire harness. All other Transit Bus
applications are to use sensor Part Number 4359193 and the splice kit Part Number
5299971.
2. For NovaeBay logo Bus applications, please refer to Attachment B, Repair Scenario 2.
3. For all other Transit Bus applications, please refer to Attachment B, Repair Scenario 1.

Material Disposition
Materials removed as a result of this field action must be scrapped.

Reimbursements
Parts
NOTE: All parts are listed as OPTIONAL. Please select the appropriate sensor for the
application. Part Number 4384457 is to be used ONLY for Nova BuseBay logo applications, and
will not require the use of the splice kit Part Number 5299971.
The following parts are covered under this field action:
Part Number

Quantity Description

435919300

2

SWH,LVL(OPTIONAL)

438445700

2

SWH,LVL(OPTIONAL - REQUIRED FOR NOVA BUSeBay logo ONLY)

529997100

2

TOL,SVC (OPTIONAL)

NOTE: This In-Shop Campaign does not reimburse for any SRTs, except those that are
listed . It is recommended, but not required, that this Field Action be performed as part
of another CumminseBay logo warrantable repair event to allow reimbursement for charges, such

https://qsol.cummins.com/qs3/pubsys2/xml/en/campaign/2017/c1744.html

6/1/2016

In-Shop Campaign, ISL CM2350 Transit Application Coolant Level Sensor

Page 3 of 3

as travel, admin, troubleshooting or access issues, that are outside of the scope of this
document.

Labor using applicable Access Code and Time:
SRT Code
19-146
19-319

Description
Coolant Level Sensor - Remove and Install (QTY 2)
Wiring Harness Connector - Replace (QTY 2)

Time (hrs)

Travel
Travel is not covered under this field action. Towing is not covered under this field action.

Other Claimables
Consumables are covered under this field action.
NOTE: Up to twenty five dollars ($25.00 USD) is allowed for coolant refill ONLY.

Claim Instructions
For CumminseBay logo Dealers, claims for this Field Campaign must be filed via RAPIDSERVE™ Web
(rsw.cummins.com). For information regarding RAPIDSERVE™ Web, please reference the
"Warranty" tab in QuickServe® Online. If there are additional questions, please contact your
local CumminseBay logo Distributor.
Claim Codes
Description
Account Code:
Pay Code:
Pay Code:
Pay Code:
Failure Code:

Code
65
Distributor = X
Dealer = D
InternationaleBay logo = I
WEDCBM

Attachments
Click here to see c1744-d_esn-list.xls
Click here to see c1744_new_coolant_level_sensor_repair_instructions-attach-b.pdf
Last Modified: 18-May-2016
Copyright © 2000-2010 CumminseBay logo Inc. All rights reserved.

https://qsol.cummins.com/qs3/pubsys2/xml/en/campaign/2017/c1744.html

6/1/2016

Attachment B - C1744, New Coolant Level Sensor Repair Instructions
ISL9 CM2350 L101 and ISB6.7 CM2350 B101 Transit Bus - All Other Transit Bus OEMs
Scenario 1 Resolution:
1. Disconnect coolant level sensor, Part Number 2872933, from the OEM harness and remove sensor from the
coolant surge tank.
a. Note that Part Number 2872933 is now obsolete. Refer to Step 4 for correct part number.
b. See the ISL9 CM2350 L101 Service ManualeBay logo, Bulletin 4310787. Refer to Procedure 019- 017 in Section 19.
2. Cut the OEM harness 25.4 mm [ 1 in ] behind the OEM Engineered Plastic Components (EPC) connector. See
Figure 1 below.
3. Install electrical connector, Part Number 5299971. See Figure 2 below.
a. See the ISL9 CM2350 L101 Service ManualeBay logo, Bulletin 4310787. Refer to Procedure 019- 199 in Section 19.
Reference Solder Splice section.
4. Install new coolant level sensor, Part Number 4359193, into the surge tank and connect to electrical connector,
Part Number 5299971. See Figure 3 below.

Figure 1, OEM Engineered Plastic Components (EPC) Connector

Figure 2, Electrical Connector, Part Number 5299971

Figure 3, New Coolant Level Sensor for ISL9 CM2350 L101 Transit Applications, Part Number 4359193

Attachment B - C1744, New Coolant Level Sensor Repair Instructions

ISL9 CM2350 L101 and ISB6.7 CM2350 B101 Transit Bus - NovaeBay logo Bus Applications ONLY
Scenario 2 Resolution (FOR NOVAeBay logo BUS ONLY):
1. Disconnect coolant level sensor, Part Number 2872933, from the OEM harness and remove sensor from the
coolant surge tank.
a. Note that Part Number 2872933 is now obsolete. Refer to Step 2 for correct part number.
b. See the ISL9 CM2350 L101 Service ManualeBay logo, Bulletin 4310787. Refer to Procedure 019- 017 in Section 19.
2. Install new coolant level sensor, Part Number 4384457, into the surge tank and connect to electrical connector.
Replace the wire harness with the new OEM Supplied wire harness. See Figure 4 below.

Figure 4, New Coolant Level Sensor for L9eBay logo CM2350 L101 Nova BuseBay logo Transit Applications only, Part Number 4384457
Service Parts Availability: Service parts are available. See Table below.

General Part Compatibility Notation - For ISL9 CM2350 L101 equipped transit applications only:
FOR TRANSIT APPLICATIONS: New coolant level sensor, Part Number 4359193 is NOT compatible with the OEM
Engineered Plastic Components connector. The OEM Engineered Plastic Components connector will need to be cut off
and replaced with electrical connector, Part Number 5299971, for the first time repair.
FOR NOVA BUSeBay logo APPLICATIONS: New coolant level sensor, Part Number 4384457 is NOT compatible with the OEM
Engineered Plastic Components connector. The OEM Engineered Plastic Components connector will need to be
replaced with a new OEM supplied wire harness.

1

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TSB/Document ID: C1744D

Replacement Service Bulletin Number:

MFR Communication Date: 2016-05-17

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ENGINE

MFR Component System:

MFR Component Subsystem:


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