NHTSA ID Number: 11028156
Manufacturer Communication Number: CE031
TSB/Document Date: 2026-02-04
Summary
DPF Delta Pressure Sensor part number 2200138 for MX-11 engines has been added to this warranty policy.
CE031: MX Component Specific Emissions Warranty for
EMY2022 PACCAR
MX-11 and MX-13 Engines
1/27/2026
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Whats New Abstract
DPF Delta Pressure Sensor part number 2200138 for MX-11 engines has been added to this warranty
policy.
Introduction
U.S. & Canada Federal emissions regulates that the warranty coverage is a period of ten (10) years or
435,000 miles (700,000 km) or 22,000 engine hours from the original warranty registration date,
whichever comes first, for these specific components on the EMY2022 PACCAR MX-11 and MX-13
Engines. PACCAR has implemented the extension and it is effective retroactively unless the part is listed
as ineligible for reimbursement below.
Revision
01/27/2026 – DPF Delta Pressure Sensor part number 2200138 for MX-11 engines has been added to
this warranty policy.
08/19/2025 – Fuel injector pump part number 2185361 for MX-13 engines has been added to this
warranty policy.
03/26/2025 – Fuel injector part numbers for MX-11 and MX-13 engines have been added to this warranty
policy.
12/19/2024 – DPF Delta Pressure Sensor part number 2200138PE for MX-13 engines has been added
to this warranty policy.
04/02/2024 – Fuel injector part number 2314736PEX for MX-11 engines has been added to this warranty
policy.
08/30/2023 – Fuel injector part number 2314737PEX for MX-13 engines has been added to this warranty
policy.
Condition
Units that have coverage under this warranty will be identified in Service Information Record
(SIR):
Sales Code
overage
C
Description
9480836
W: MX
E
Emissions
10yr/435K
Miles (700K
KM) Engine
MY2022
PD Part
P
Number
Part
Claim Failure
Description Type Location
Injector,
044-0042314737(PEX) MX-13, Engine
001
EPA21
Injector,
044-0042314736(PEX) MX-11, Engine
001
EPA21
Fuel
Injector,
044-0042383578(PEX)
Engine
MX-11,
001
EPA21
Fuel
Injector,
044-0042383579(PEX)
Engine
MX-13,
001
EPA21
Fuel
Injector,
044-0042394547(PEX)
Engine
MX-11,
001
EPA21
Fuel
Injector,
044-0042394548(PEX)
Engine
MX-13,
001
EPA21
Fuel
Injector,
044-0042403775(PEX)
Engine
MX-11,
001
EPA21
Fuel
Injector,
044-0042403776(PEX)
Engine
MX-13,
001
EPA21
Fuel
Injector,
044-0042403200(PEX)
Engine
MX-11,
001
EPA21
Fuel
Injector,
044-0042403201(PEX)
Engine
MX-13,
001
EPA21
2403777(PEX)
Fuel
Engine 044-004Injector,
001
2403778(PEX)
2423651(PEX)
2423652(PEX)
2423653(PEX)
2423654(PEX)
2426853(PEX)
2426854(PEX)
2426855(PEX)
2426856(PEX)
2429854(PEX)
2429855(PEX)
2428773(PEX)
2428774(PEX)
2452061(PEX)
MX-11,
EPA21
Fuel
Injector,
MX-13,
EPA21
Fuel
Injector,
MX-11,
EPA21
Fuel
Injector,
MX-13,
EPA21
Fuel
Injector,
MX-11,
EPA21
Fuel
Injector,
MX-13,
EPA21
Fuel
Injector,
MX-11,
EPA21
Fuel
Injector,
MX-13,
EPA21
Fuel
Injector,
MX-11,
EPA21
Fuel
Injector,
MX-13,
EPA21
Fuel
Injector,
MX-11,
EPA21
Fuel
Injector,
MX-13,
EPA21
Fuel
Injector,
MX-11,
EPA21
Fuel
Injector,
MX-13,
EPA21
Fuel
Injector,
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine
044-004001
Engine044-004001
MX-11,
EPA21
Fuel
Injector,
044-0042452062(PEX)
Engine
MX-13,
001
EPA21
Fuel
Injector,
044-0042460409(PEX)
Engine
MX-11,
001
EPA21
Fuel
Injector,
044-0042460410(PEX)
Engine
MX-13,
001
EPA21
Fuel
Injector,
044-0042460411(PEX)
Engine
MX-11,
001
EPA21
Fuel
Injector,
044-0042460412(PEX)
Engine
MX-13,
001
EPA21
Fuel
Injector,
044-0042460413(PEX)
Engine
MX-11,
001
EPA21
Fuel
Injector,
044-0042460414(PEX)
Engine
MX-13,
001
EPA21
Fuel Injector
Pump, MX044-0032185361(PE)
Engine
11, MX-13,
218
EPA21
DPF Delta
Pressure
043-0062200138
Sensor, MX- Engine
007
11, MX-13,
EPA21
For reimbursement of past repairs, unless noted above as not eligible, file a claim in accordance
with the warranty procedure manual.
Attach an invoice and receipt to the claim to document the repair and payment made.
In addition, attach receipt of reimbursement made to customer for the initial invoice/costs of repair.
Retroactive claims without these items will be denied.
Warranty
The emissions warranty will cover the repair costs for any failure of an emissions-related part described
in this bulletin that results under normal use and service, caused by a warrantable failure, which must be
the result of a defect in material and/or factory workmanship. Reimbursement will include:
• Parts
• Labor
• Consumables (when not reusable)
N OT E
Cummins-powered chassis do
not have Extended Emissions
Coverage under this bulletin.
PROACTIVE REPAIRS ARE NOT COVERED BY THIS PROGRAM
Towing will only be covered if 'engine' emission component failure occurs within the base engine period
of 24 months/250,000 miles/6,250 hours, whichever comes first. Outside of base engine coverage,
towing and travel are excluded.
PACCAR will pay for reasonable labor costs for engine removal and reinstallation when necessary to
repair a warrantable failure.
The emissions warranty is retroactive and applies to qualifying warrantable failures that customers have
already had repaired at their expense.
Components that qualify for coverage on MY2022 PACCAR MX Engines:
2314737PEX(1)
2383579PEX(1)
2394548PEX(1)
2403776PEX(1)
2403201PEX(1)
2403778PEX(1)
2423652PEX(1)
2022 (MX- 2423654PEX(1)
Fuel Injector
13)
2426854PEX(1)
2426856PEX(1)
2429855PEX(1)
2428774PEX(1)
2452062PEX(1)
2460410PEX(1)
2460412PEX(1)
2460414PEX(1)
2314736PEX(1)
2383578PEX(1)
2394547PEX(1)
2403775PEX(1)
2403200PEX(1)
2403777PEX(1)
2423651PEX(1)
2022 (MX- 2423653PEX(1)
11)
2426853PEX(1)
2426855PEX(1)
2429854PEX(1)
2428773PEX(1)
2452061PEX(1)
2460409PEX(1)
2460411PEX(1)
2460413PEX(1)
2022 (MX2185361PE(1)
13)
2022 (MX11
and MX13)
2200138(2)
Fuel
Injection
Pump
DPF Delta
Pressure
Sensor
(1)
Component added in previous
Extended Warranty Coverage update.
(2) Additional component added to
Extended Warranty Coverage.
If there is a failure on any of the parts listed above, submit a warranty claim through PACCAR
Registration and Warranty System (PRWS). Ensure the correct VIN number and Causal Part removed
from the vehicle are on the submitted claim.
Attachments
CE031 PB Chassis List
CE031 PB US Customer Letter
CE031 PB US Customer Letter - Spanish
CE031 PB Canadian Customer Letter
CE031 PB Canadian Customer Letter - French
Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
Renton, WA 98057
(425) 828-5888
[Date]
Subject: CE031: MX Component Specific Emissions Warranty for EMY2022
PACCAR MX-11 and MX-13 Engines
Expiration Date: None
This notice applies to your vehicle; Your VIN(s) can be found on the front or back of this page.
Dear Peterbilt Customer,
This is not a recall or campaign. You do not need to schedule an appointment with your
dealer unless your vehicle experiences a problem.
This letter has been sent to inform you that Peterbilt Motors Company has extended the
warranty coverage on certain emissions components installed on your vehicle(s). Your
vehicle(s) contain(s) one or more of the parts listed in this letter. No action is needed on
your part.
The Emissions Warranty Coverage for the components listed in the table below has been
extended to 10 years, 435,000 vehicle miles/700,000 km, or 22,000 engine hours from the
original warranty registration date, whichever comes first.
Table 1 Parts Covered by Extended Warranty (EWC Code 9480836)
Part Name
Part Number
Result of Failure
Fuel Injector (MX-13,
EPA21)
2314737PEX (1)
2383579PEX(1)
2394548PEX (1)
2403776PEX (1)
2403201PEX (1)
2403778PEX (1)
2423652PEX (1)
2423654PEX (1)
2426854PEX (1)
2426856PEX (1)
2429855PEX (1)
2428774PEX (1)
2452062PEX (1)
2460410PEX (1)
2460412PEX (1)
2460414PEX (1)
Inefficient fuel injector performance can lead to
insufficient regeneration and high soot loading of
DPF due to uneven fuel burning.
Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
Renton, WA 98057
(425) 828-5888
Fuel Injector (MX-11,
EPA21)
2314736PEX (1)
2383578PEX (1)
2394547PEX (1)
2403775PEX (1)
2403200PEX (1)
2403777PEX (1)
2423651PEX (1)
2423653PEX (1)
2426853PEX (1)
2426855PEX (1)
2429854PEX (1)
2428773PEX (1)
2452061PEX (1)
2460409PEX (1)
2460411PEX (1)
2460413PEX (1)
Inefficient fuel injector performance can lead to
insufficient regeneration and high soot loading of
DPF due to uneven fuel burning.
Fuel Injection Pump
(MX-13, EPA21)
2185361PE (1)
Failures of the Fuel Injection Pumps that result in
inaccurate monitoring of exhaust gases have the
potential to compromise SCR system effectiveness
and affect tailpipe emissions of NOx.
DPF Delta Pressure
2200138 (2)
Sensor (MX-11, MX-13,
EPA21)
Failures of the Delta Pressure Sensor that result in
inaccurate monitoring of the DPF/SCR have the
potential to compromise the DPF/SCR system
effectiveness and affect tailpipe emissions of NOx
and/or particulate matter.
(1)
Components that were included in a previous letter.
(2)
Additional component added to Extended Warranty Coverage.
If you have previously paid to replace any of the components listed in the table above, you may
be eligible for reimbursement of the cost of parts and labor. Please provide your Peterbilt
dealer with a receipt for the repair and your dealer will file a claim on your behalf. If approved,
your dealer will issue reimbursement.
To locate your nearest Peterbilt dealer, please scan the QR code at the top of this letter or use
Find a Dealer at www.Peterbilt.com. When contacting your selected dealer, refer to Extended
Warranty Code (EWC) 9480836 and the VIN listed below or on the back of this letter.
Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
Renton, WA 98057
(425) 828-5888
If you are the lessor of this vehicle, federal regulations require you to forward a copy of this
notice to the lessee within ten days. If you no longer own this vehicle, please email the last 8
digits of the VIN and the new owner’s name and address to servicebulletins@paccar.com.
Sincerely,
Peterbilt Customer Service
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TSB/Document ID: CE031
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-27
MFR Internal Campaign ID/Software Version: CE031
Communication Type: Other
NHTSA Components: FUEL/PROPULSION SYSTEM
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