Kenworth Truck Company
Customer Service Department
PO Box 1000
Kirkland, Washington 98083-1000
(425) 828-5000

Date TBD

[First VIN]
Customer Name
Address
City, State Zip

Subject: TIB 43-054: T800/T880 Improved Vertical Exhaust Heat Shields

Dear Kenworth Customer,
Your vehicle (listed within this letter) is eligible for a campaign to install an improved vertical exhaust heat shield
that is less prone to vibration.
Please contact a Kenworth dealership to schedule an appointment for this work. If you have already had this
work performed, please disregard this letter. You can find your nearest Kenworth dealer at Dealer Locator on the
website www.Kenworth.com.
When contacting your selected Kenworth dealer, refer to campaign TIB 43-054 and the VIN listed on this letter.
The work will take approximately 1.0 hour, depending on vehicle configuration and dealer scheduling. There
will be no charge to you if completed within Standard Warranty (excludes Extended Warranty) or for upgrades
completed by 07/01/2019, whichever is greater. We apologize for this inconvenience but ask for your cooperation
to ensure your continued satisfaction with Kenworth products.
If you require further information about this campaign, reimbursement of a pre-notification remedy associated
with this campaign or experience any difficulty in making arrangements for this repair, please contact:
Email: Kenworth.Customer.Service@paccar.com with the bulletin number in the subject line.
OR
Mail: Kenworth Truck Company, P.O. Box 1000, Kirkland, WA 98083-1000, Attn: Customer Service
Department
OR
Phone: 425-828-5000.

If you no longer own this vehicle, we would appreciate your advising us of the new owner if you know their name.
Thank you,

Shondip Chakravarty
Director of Customer Service
Kenworth Truck Company

VIN:

[VIN List]

REPAIR PROCEDURE
TIB 43-054

2017 Vertical Exhaust Heat Shield Replacement

Replacement Instructions
Divisions Impacted: Kenworth and Peterbilt
Exhaust Assembly Impacted: M37-6252-000000

Heat Shield Replacement
1. Remove the (9) M8 X 1.25 bolts and (9) M8 washers. They will be used for the new heat shield installation.
•

Bolt Part Numbers: 27-01260-016.

•

Washer Part Numbers: 27-00801-005P.

2. Remove the factory-installed heat shield and replace it with a new heat shield.
•

Factory-Installed Heat Shield: M46-6419.

•

New Heat Shield: M46-6440.

3. If grab handles are present, see the Grab Handle section below.
4. Install the new heat shield (M46-6440) with M8 X 1.25 bolts and washers removed during step 1.

5/18/2018

TIB 43-054

Page 1 of 2

2017 Vertical Exhaust Heat Shield Replacement
Grab Handles
1. Remove the factory-installed heat shield.
2. Remove the (4) M6 bolts and (4) M6 washers. They will be used for installation on new heat shield.
•

Bolt Part Numbers: K041-813-16POL.

•

Washer Part Numbers: 27-00801-004P.

3. Remove the (1) grab handle and (2) grab handle reinforcements.
•

Grab Handle Part Number: K294-225

•

Grab Handle Reinforcement Part Number: M77-6001

4. Attach the grab handle and grab handle reinforcements to the new heat shield with bolts and washers from
step 2.
5. Install new heat shield as noted in step 3 of heat shield replacement section.

5/18/2018

TIB 43-054

Page 2 of 2

TIB 43-054: T800/T880 Vertical Exhaust Heat Shields

Page 1 of 3

Technical Information Bulletin
43-054

Section
Exhaust - 43

Subject
T800/T880 Vertical Exhaust Heat Shields

Release Date
6/14/2018

Condition
The original heatshields have an unsupported section that causes an audible rattling along with visual movement.

Chassis Affected
14 chassis (11 U.S. and 3 Canada) T800 and T880 vehicles built from 12/07/2017 through 01/17/2018, with inadequately
supported heat shields.

Action
CAMPAIGN
Service all chassis affected that enter your dealership, even if the customer has no issue with the chassis.

https://eportal.paccar.com/dealer/uskw/en/service/vehiclebulletins/vehiclefieldservice/Pages... 7/2/2018

TIB 43-054: T800/T880 Vertical Exhaust Heat Shields

1.
2.
3.

Page 2 of 3

Review the attached chassis list for your dealer code and schedule your customer(s) for service if their chassis is on
the list.
Review the DWWC or SIR for “Complete” next to the “43054” campaign code prior to performing this repair.
Follow the procedures below to replace the heat shield.

This campaign can be performed at any time convenient for the customer (for example: during next scheduled maintenance
interval).

Warranty
Through Standard Warranty (excludes Extended Warranty) or for repairs completed by 07/01/2019, Kenworth will pay for parts
at dealer net plus applicable mark-up and labor:
0.3 hours labor to replace the heat shield. Use Quick Claim Code 43054.
Take-Off Parts Disposition: Destroy any take off part 30 days after claim is paid.
CLAIM CODING
Failure Location:

043-003-042

Work Accomplished:

35

Failure Type:

700

Responsibility Code:

01

SRT Code:

043-025

Claim Type:

C

Parts
Parts are available from PACCAR Parts.
Quantity

Part Number

Description

1

M46-6440

Guard-Muffler, Half Round

Note: Reuse the bolts and washers as stated in the procedure.

Procedure
Use the attached procedure below to remove and replace the heat shield.

Attachments
Dealer\Chassis List
U.S. Customer Letter
Canada Customer Letter
43-054 Heat Shield Procedure

https://eportal.paccar.com/dealer/uskw/en/service/vehiclebulletins/vehiclefieldservice/Pages... 7/2/2018

TIB 43-054: T800/T880 Vertical Exhaust Heat Shields

Page 3 of 3

Authored by: OF

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