​2429855 (PEX)

​Fuel Injector, MX-13,

​Engine ​044-014-001

EPA21
​2428773 (PEX)

Fuel Injector, MX-11,
EPA21​

​Engine ​044-014-001

​2428774 (PEX)

​Fuel Injector, MX-13,
EPA21

​Engine ​044-014-001

​2452061 (PEX)

​Fuel Injector, MX-11,
EPA21

​Engine ​044-014-001

​2452062 (PEX)

​Fuel Injector, MX-13,
EPA21

​Engine ​044-014-001

​2460409 (PEX)

​Fuel Injector, MX-11,
EPA21

​Engine ​044-014-001

​2460410 (PEX)

​Fuel Injector, MX-13,
EPA21

​Engine ​044-014-001

​2460411 (PEX)

Fuel Injector, MX-11,
EPA21​

​Engine ​044-014-001

​2460412 (PEX)

​Fuel Injector, MX-13,
EPA21

​Engine ​044-014-001

​2460413 (PEX)

Fuel Injector, MX-11,
EPA21​

​Engine ​044-014-001

​2460414 (PEX)

Fuel Injector, MX-13,
EPA21​

​Engine ​044-014-001

2434417 (PEX)
​

​
​

Engine​ 044-014-001
​Engine 044-014-001

2461235 (PEX)​

Fuel Injector, MX-11,
EPA21​

​Engine 044-014-001

2461236 (PEX)​

​Fuel Injector, MX-13,
EPA21

​Engine ​044-014-001

2477784 (PEX)​

Fuel Injector, MX-11,
EPA21​

​Engine 044-014-001

2477785 (PEX)​

​Fuel Injector, MX-13,
EPA21

​Engine 044-014-001

2477786 (PEX)​

Fuel Injector, MX-11,
EPA21​

​Engine 044-014-001

2477787 (PEX)​

​Fuel Injector, MX-13,
EPA21

​Engine 044-014-001

2477862 (PEX)​

​Fuel Injector, MX-11,
EPA21

​Engine ​044-014-001

​2477863 (PEX)

​Fuel Injector, MX-13,
EPA21

​Engine ​044-014-001

2477864 (PEX)​

​Fuel Injector, MX-11,
EPA21

​Engine 044-014-001

2477865 (PEX)​

Fuel Injector, MX-13,
EPA21​

​Engine ​044-014-001

​2491046 (PEX)

​Fuel Injector, MX-11,
EPA21

​Engine 044-014-001

​2491047 (PEX)

​Fuel Injector, MX-13,
EPA21

​Engine 044-014-001

For reimbursement of past repairs, unless noted above as not eligible, file a claim, and populate parts
and labor costs as a sublet in the Miscellaneous section. 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
​ he emissions warranty will cover the repair costs for any failure of an emissions-related part described
T
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)

NOTE
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. 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 MY2021 PACCAR MX Engines:
Engine Model Year

PPD Part Number

Part Description

2021B (MX-13)

2314737 (PEX)(1)
2383579 (PEX)(1)
2394548 (PEX)(1)
2403201 (PEX)(1)
2403776 (PEX)(1)
2403778 (PEX)(1)
2423652 (PEX)(1)
2423654 (PEX)(1)
2426854 (PEX)(1)
2426856 (PEX)(1)
2428774 (PEX)(1)
2429855 (PEX)(1)
2452062 (PEX)(1)
2460410 (PEX)(1)
2460412 (PEX)(1)
2460414 (PEX)(1)
2434417 (PEX)(2)
2461236 (PEX)(2)
2477785 (PEX)(2)
2477787 (PEX)(2)
2477863 (PEX)(2)
2477865 (PEX)(2)
2491047 (PEX)(2)

Fuel Injector

​2021B (MX-11)

2314736 (PEX)(1)
2383578 (PEX)(1)
2394547 (PEX)(1)
2403200 (PEX)(1)
2403775 (PEX)(1)
2403777 (PEX)(1)
2423651 (PEX)(1)
2423653 (PEX)(1)
2426853 (PEX)(1)
2426855 (PEX)(1)
2428773 (PEX)(1)
2429854 (PEX)(1)
2452061 (PEX)(1)
2460409 (PEX)(1)
2460411 (PEX)(1)
2460413 (PEX)(1)
2434418 (PEX)(2)
2461235 (PEX)(2)
2477784 (PEX)(2)
2477786 (PEX)(2)

Fuel Injector

2477862 (PEX)(2)
2477864 (PEX)(2)
2491046 (PEX)(2)​

(1) Component added in previous Extended Warranty Coverage update.
(2) Additional component added to Extended Warranty Coverage.

Attachments
CE030 PB Chassis List
CE030 MX Component Specific Emissions Extended Warranty for EMY2021 PACCAR MX-11 and MX-13
Engines US Customer Letter
CE030 MX Component Specific Emissions Extended Warranty for EMY2021 PACCAR MX-11 and MX-13
Engines US Customer Letter – Spanish
CE030 MX Component Specific Emissions Extended Warranty for EMY2021 PACCAR MX-11 and MX-13
Engines CAN Customer Letter
CE030 MX Component Specific Emissions Extended Warranty for EMY2021 PACCAR MX-11 and MX-13
Engines CAN 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: CE030: MX Component Specific Emissions Extended Warranty for
EMY2021 PACCAR MX 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 9480835)
Part Name
Part Number
Result of Failure
Fuel Injector (MX-13,
EPA21)

2314737 (PEX)(1) Inefficient fuel injector performance can lead to
2383579 (PEX)(1) insufficient regeneration and high soot loading of
2394548 (PEX)(1) DPF due to uneven fuel burning.
2403776 (PEX)(1)
2403201 (PEX)(1)
2403778 (PEX)(1)
2423652 (PEX)(1)
2423654 (PEX)(1)
2426854 (PEX)(1)
2426856 (PEX)(1)
2429855 (PEX)(1)
2428774 (PEX)(1)
2452062 (PEX)(1)
2460410 (PEX)(1)
2460412 (PEX)(1)
2460414 (PEX)(1)

Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
Renton, WA 98057
(425) 828-5888

2434417 (PEX)(2)
2461236 (PEX)(2)
2477785 (PEX)(2)
2477787 (PEX)(2)
2477863 (PEX)(2)
2477865 (PEX)(2)
2491047 (PEX)(2)
2314736 (PEX)(1) Inefficient fuel injector performance can lead to
2383578 (PEX)(1) insufficient regeneration and high soot loading of
2394547 (PEX)(1) DPF due to uneven fuel burning.
2403775 (PEX)(1)
2403200 (PEX)(1)
2403777 (PEX)(1)
2423651 (PEX)(1)
2423653 (PEX)(1)
2426853 (PEX)(1)
2426855 (PEX)(1)
2429854 (PEX)(1)
2428773 (PEX)(1)
2452061 (PEX)(1)
2460409 (PEX)(1)
2460411 (PEX)(1)
2460413 (PEX)(1)
2434418 (PEX)(2)
2461235 (PEX)(2)
2477784 (PEX)(2)
2477786 (PEX)(2)
2477862 (PEX)(2)
2477864 (PEX)(2)
2491046 (PEX)(2)
(1)
Components that were included in a previous letter.
(2)
Additional component added to Extended Warranty Coverage.

Fuel Injector (MX-11,
EPA21)

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

Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
Renton, WA 98057
(425) 828-5888

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) 9480835 and the VIN listed below or on the back of this letter.
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

Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
Renton, WA 98057
(425) 828-5888

[Date]
Subject: CE030: MX Component Specific Emissions Extended Warranty for
EMY2021 PACCAR MX 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 notice is sent to you in accordance with the requirements of the Canadian Environmental
Protection Act, 1999.
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 9480835)
Part Name
Part Number
Result of Failure
Fuel Injector (MX-13,
EPA21)

2314737 (PEX)(1) Inefficient fuel injector performance can lead to
2383579 (PEX)(1) insufficient regeneration and high soot loading of
2394548 (PEX)(1) DPF due to uneven fuel burning.
2403776 (PEX)(1)
2403201 (PEX)(1)
2403778 (PEX)(1)
2423652 (PEX)(1)
2423654 (PEX)(1)
2426854 (PEX)(1)
2426856 (PEX)(1)
2429855 (PEX)(1)
2428774 (PEX)(1)
2452062 (PEX)(1)
2460410 (PEX)(1)

Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
Renton, WA 98057
(425) 828-5888

2460412 (PEX)(1)
2460414 (PEX)(1)
2434417 (PEX)(2)
2461236 (PEX)(2)
2477785 (PEX)(2)
2477787 (PEX)(2)
2477863 (PEX)(2)
2477865 (PEX)(2)
2491047 (PEX)(2)
2314736 (PEX)(1) Inefficient fuel injector performance can lead to
2383578 (PEX)(1) insufficient regeneration and high soot loading of
2394547 (PEX)(1) DPF due to uneven fuel burning.
2403775 (PEX)(1)
2403200 (PEX)(1)
2403777 (PEX)(1)
2423651 (PEX)(1)
2423653 (PEX)(1)
2426853 (PEX)(1)
2426855 (PEX)(1)
2429854 (PEX)(1)
2428773 (PEX)(1)
2452061 (PEX)(1)
2460409 (PEX)(1)
2460411 (PEX)(1)
2460413 (PEX)(1)
2434418 (PEX)(2)
2461235 (PEX)(2)
2477784 (PEX)(2)
2477786 (PEX)(2)
2477862 (PEX)(2)
2477864 (PEX)(2)
2491046 (PEX)(2)
(1)
Components that were included in a previous letter.
(2)
Additional component added to Extended Warranty Coverage.

Fuel Injector (MX-11,
EPA21)

Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
Renton, WA 98057
(425) 828-5888

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) 9480835 and the VIN listed below or on the back of this letter.
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