NHTSA ID Number: 10117271
Manufacturer Communication Number: IK1201039
TSB/Document Date: 2017-09-08
Summary
Aftertreatment Purge Air Valve Air Supply Line Routing for both Cummins
ISX SCR and N13 SCR Engines
IK1201039 Aftertreatment Purge Air Valve Air Supply Line Routing for both Cummins... Page 1 of 6
Countries:
CANADA, COLOMBIA, UNITED STATES, Document
PUERTO RICO
ID:
IK1201039
Availability:
ISIS, FleetISIS, Body Builder
Revision:
1
Major System:
Current
Language:
Other
Languages:
ENGINES
Created:
Last
Modified:
11/26/2013
Viewed:
589
English
NONE
Author:
6/11/2014
James
Santos
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Title : Aftertreatment Purge Air Valve Air Supply Line Routing for both Cummins ISX SCR Engines and
N13 with SCR Engines
Applies To : ProStar, TransStar , PayStar, 9900i. ISX Cummins SCR, N13 SCR
DESCRIPTION
Proper AFT Purge Valve air line routing.
POSSIBLE FAULT CODES
SPN 3490 FMI 7
Cummins Fault 3225
SERVICE PROCEDURE
N13 with SCR
The engine air supply is run directly from the manifold on a Bendix ADIS dryer, used in all ProStars, and off the secondary air tank
on all other units not equipped with the AD-IS dryer. Both configurations are shown below. The line runs up the driver side frame
rail where it T's off to the Aftertreatment Purge Air Valve, continuing on to a reducer fitting just below the valve cover on the driver
side, from here it runs around the front of the engine to supply air to the Air Control Valve (ACV).
We have identified two types of concerns on N13 engines
• Missing T fitting and short 1/4" air line to Aftertreatment Purge Air valve
• Missing complete engine air supply line - In this case you will need plumb air from either the auxiliary manifold found on the
AD-IS dryer, or from the secondary air tank pressure protection valve used with all other dryer types
Engine Air supply Bendix ADIS Dryer N13 with SCR
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 7/1/2014
IK1201039 Aftertreatment Purge Air Valve Air Supply Line Routing for both Cummins... Page 2 of 6
All other dryers air supplied to engine from secondary air tank pressure protected valve - N13 with SCR
352
Parts and Routing info for Missing T fitting and short 1/4" tube - N13 with SCR
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 7/1/2014
IK1201039 Aftertreatment Purge Air Valve Air Supply Line Routing for both Cummins... Page 3 of 6
Parts Information N13 with SCR
Part Number
Description
202446C1
Elbow 90 Deg 3/8" PTC X 3/8"
2017484C1
1/4" MPT X 3/8"
3820201C1
Pressure Protect Valve M22 X 1.5 Thread
2041017C1
TEE 3/8" PTC X 3/8" PTC X 1/4" PTC
3520437C2
3/8" Tube, Purple
3520528C2
1/4" Tube, Purple
Cummins ISX 15L with SCR
Since the ISX does not have an ACV the only concern we have seen on this application is that complete line is missing from the
either the auxiliary manifold (AD-IS Dryer) or the secondary air tank pressure protection valve (all other dryers). Both configurations
are shown below.
Engine Air supply - Bendix AD-IS Dryer Cummins ISX
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 7/1/2014
IK1201039 Aftertreatment Purge Air Valve Air Supply Line Routing for both Cummins... Page 4 of 6
All other dryers air supplied to engine from secondary air tank pressure protected valve - Cummins ISX
with SCR
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 7/1/2014
IK1201039 Aftertreatment Purge Air Valve Air Supply Line Routing for both Cummins... Page 5 of 6
Parts and Routing information for missing engine supply line and fitting - Cummins ISX with SCR
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 7/1/2014
IK1201039 Aftertreatment Purge Air Valve Air Supply Line Routing for both Cummins... Page 6 of 6
Parts Information Cummins ISX with SCR
Part Number
Description
2024445C1
Elbow 90 Deg 1/4" PTC X 3/8"
2017484C1
1/4" MPT X 3/8"
3820201C1
Pressure Protect Valve M22 X 1.5 Thread
3507065C1
1/4" PTC X 3/8" Stem
3520528C2
1/4" Tube, Purple
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Copyright © 2014 Navistar, Inc.
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 7/1/2014
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TSB/Document ID: IK1201039
Replacement Service Bulletin Number:
MFR Communication Date: 2014-06-11
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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