46-020: T680 BEV Electric Power Take-Off Motor Mount
and Spline Upfit
6/25/2026 Z Edit © Clone
46-020
Subject
T680 BEV Electric Power Take-Off Motor Mount and Spline Upfit
Whats New Abstract
A new electric power take-off (ePTO) motor mount shim and an improved spline shaft are available for certain
T680 BEV chassis with ePTO motors.
Condition
Certain electric power take-off (ePTO) motor mounts and spline shafts may vary from intended manufacturing
specifications, potentially affecting spline wear over time.
Chassis Affected
9 (6 US and 3 Canada) vehicle model year 2023-2024 T680 BEV manufactured between 04/05/2022 and
03/17/2023 equipped with ePTO motors
Action
Campaign
Service all chassis affected that enter your dealership, even if the customer has no issue with the chassis.
1. Review the attached chassis list for your dealer code and schedule your customer(s) for service if their
chassis is on the list.
2. In Service Management, select campaign 46-020 to add it to the case. If the unit is released back into
service without performing the repair, make sure to also release the campaign in Service Management.
3. If you are not using Service Management to start repair orders, review SIR for Complete next to the 46-
020 campaign code prior to performing this repair.
4. Follow the procedures in the Attachments section to inspect the ePTO system and replace part(s) as
necessary.
Warranty
Starting on 06/25/2026 and for repairs completed by 07/01/2027, Kenworth will pay for parts at dealer net
plus applicable mark-up and labor:
¢ 0.4 hours to inspect the ePTO system for aftermarket equipment and install the motor mount shim. Use
Recommended Repair Code 46-020A.
° 1.6 hours to inspect the ePTO system for aftermarket equipment, install the motor mount shim, replace
the spline shaft, and inspect the ePTO motor's spline socket. Use Recommended Repair Code 46-020B.
¢ 11.2 hours to inspect the ePTO system for aftermarket equipment, install the motor mount shim,
replace the spline shaft, inspect the ePTO motor's spline socket, and replace the ePTO motor. Use
Recommended Repair Code 46-020C.
¢ File an additional claim for extraordinary circumstances. A Recommended Repair for standard labor

must be filed first.
¢ File the claim within 14 days in accordance with the Warranty Policy.
Take-Off Parts Disposition:
¢ Return cores through EZ Trac

PRWS CLAIM CODING

Campaign |46-020 |Campaign Type |Field Repair

Code:

Claim Truck Repair Type Proactive

Category:

Customer |001 Causal Code 30

Concern

Code

Corrective (03 Responsibility |CAMP-

Action Code Code: Campaign

Failure 048- Causal Part E0S-6022

Location 001-006

N/A

Supplier SRT Code B26-04A

Code (0.4 hours)
Inspect the
ePTO system
for
aftermarket
equipment
and install
the motor
mount shim
per bulletin
procedure
B26-04B (1.6
hours)
Inspect the
ePTO system
for
aftermarket
equipment,
install the

motor mount
shim, replace
the spline
shaft, and
inspect the
ePTO motor’s
spline socket
per bulletin
procedure
B26-04C
(11.2 hours)
Inspect the
ePTO system
for
aftermarket
equipment,
install the
motor mount
shim, replace
the spline
shaft, inspect
the ePTO
motor's
spline socket,
and replace
the ePTO
motor per
bulletin
procedure
For campaign filing questions, reference Kenworth bulletin CB077.
Parts
Quantity Part Description Stock
Number Location
SPLINE SHAFT,
1 £05-6024 PTO PDC
SHIM — PTO,
1 Y80-6001 BRACKET PDC
1
(as needed ePTO MOTOR
per CPT110412 ASSY PDC
inspection)
Partial N/A HIGH-PRESSURE | Locally
container SYNTHETIC sourced
GREASE, NLGI 2
WITH EP

Quanti Part Descripti Stock
uantity Number escription Location
ADDITIVE or
equivalent
Partial Locall
arta N/A | COPPER PASTE | O°?
container sourced
BOLT M14-2.0 -
CLASS 8.8
+Ifno
aftermarket
equipment is
installed, order
40mm length for Locall
4 N/A shim plate ocally
a . sourced
installation.
+ If aftermarket
equipment is
installed, the
length depends
on the installer's
judgment for it.
FLAT WASHER | Locally
8 N/A M14 —CLASS 8 | sourced
HEX LOCK NUTS Locall
4 N/A |M14-2.0-cLass| “OC?'Y
sourced
8
1 (as needed | EC3501
if the ePTO | (Canadian COOLANT — TRP DSP /
motor Part ELC ivalent Locally
requires Number Or equivalent | sourced
replacement)| EC7501)
Procedure
A WARNING
Repair or maintenance procedures may pose a safety
risk in limited circumstances. You must read all
procedure steps before performing any work and
follow all dealership safety procedures or precautions.
Failure to comply may result in death, personal injury,
or property damage.
Please see the Attachments section below for procedures to inspect the ePTO system and replace part(s) as

necessary.

Attachments

46-020: T680 BEV Electric Power Take-Off Motor Mount and Spline - Repair Procedure

46-020: T680 BEV Electric Power Take-Off Motor Mount and Spline Upfit - Chassis List

46-020: T680 BEV Electric Power Take-Off Motor Mount and Spline Upfit - US Customer Letter
46-020: T680 BEV Electric Power Take-Off Motor Mount and Spline Upfit - CAN Customer Letter

Kenworth Truck Company
KENWORTH Customer Service Departinent
C/O PACCAR Parts
A PACCAR COMPANY 750 Houser Way North
Renton, WA 98057
(425) 828-5888
[Date] asso
Subject: 46-020: T680 BEV Electric Power Take-Off Motor Mount and Spline Upfit as
Expiration Date: 07/01/2027 ee ao
FIELD SERVICE CAMPAIGN
This notice applies to your vehicle(s) with VIN(s) at the bottom or back of this page.
Dear Kenworth Customer,
Kenworth Truck Company has determined that certain T680 BEV vehicles manufactured between
04/05/2022 and 03/17/2023 with electric power take-off (ePTO) motors are eligible to have a new
ePTO motor mount shim installed to protect against early-stage spline wear.
What is the problem? Possible early-stage wear on ePTO motor splines.
What will your dealer do? —_ Inspect the ePTO system. Install and replace one or more parts
as required.
What should you do? Contact your dealer to schedule a repair appointment. This
service may require up to 12 hours of labor.
To locate your nearest dealer please scan the QR code at the top of this letter or use the Dealer
Locator at www.Kenworth.com. When scheduling this service, please refer to campaign 46-020:
T680 BEV Electric Power Take-Off Motor Mount and Spline Upfit and the VIN(s) listed in this
letter. There will be no charge to you if completed by 07/01/2027.
If you no longer own the vehicle(s), please send an email to [email protected] with the
complete VIN(s) and the name and address of the new owner.
We appreciate your attention to this matter and value your loyalty to Kenworth and its dealer
network.
Sincerely,
Kenworth Customer Service

Kenworth Truck Company
KENWORTH Customer Service Departinent
C/O PACCAR Parts
A PACCAR COMPANY 750 Houser Way North
Renton, WA 98057
(425) 828-5888
[Date] asso
Subject: 46-020: T680 BEV Electric Power Take-Off Motor Mount and Spline Upfit as
Expiration Date: 07/01/2027 ee ao
FIELD SERVICE CAMPAIGN
This notice applies to your vehicle(s) with VIN(s) at the bottom or back of this page.
Dear Kenworth Customer,
Kenworth Truck Company has determined that certain T680 BEV vehicles manufactured between
04/05/2022 and 03/17/2023 with electric power take-off (ePTO) motors are eligible to have a new
ePTO motor mount shim installed to protect against early-stage spline wear.
What is the problem? Possible early-stage wear on ePTO motor splines.
What will your dealer do? —_ Inspect the ePTO system. Install and replace one or more parts
as required.
What should you do? Contact your dealer to schedule a repair appointment. This
service may require up to 12 hours of labor.
To locate your nearest dealer please scan the QR code at the top of this letter or use the Dealer
Locator at www.Kenworth.com. When scheduling this service, please refer to campaign 46-020:
T680 BEV Electric Power Take-Off Motor Mount and Spline Upfit and the VIN(s) listed in this
letter. There will be no charge to you if completed by 07/01/2027.
If you no longer own the vehicle(s), please send an email to servicebulletins@paccar.com with the
complete VIN(s) and the name and address of the new owner.
We appreciate your attention to this matter and value your loyalty to Kenworth and its dealer
network.
Sincerely,
Kenworth Customer Service

Kenworth Truck Company
KENWORTH Customer Service Departinent
C/O PACCAR Parts
A PACCAR COMPANY 750 Houser Way North
Renton, WA 98057
(425) 828-5888
Salutations,
Service a la clientéle de Kenworth

46-020: Model 520 BEV and 579 BEV Electric Power Take-
Off Motor Mount and Spline Upfit
6/25/2026 Z Edit © Clone
46-020
Subject
Model 520 BEV and 579 BEV Electric Power Take-Off Motor Mount and Spline Upfit
Whats New Abstract
A new electric power take-off (ePTO) motor mount shim and an improved spline shaft are available for certain
Model 520 BEV and 579 BEV chassis with ePTO motors.
Condition
Certain electric power take-off (ePTO) motor mounts and spline shafts may vary from intended manufacturing
specifications, potentially affecting spline wear over time.
Chassis Affected
51 (43 US and 8 Canada) vehicle model year 2023-2026 Model 520 BEV and 579 BEV manufactured between
05/06/2022 and 06/06/2025 equipped with ePTO motors
Action
Campaign
Service all chassis affected that enter your dealership, even if the customer has no issue with the chassis.
1. Review the attached chassis list for your dealer code and schedule your customer(s) for service if their
chassis is on the list.
2. In Service Management, select campaign 46-020 to add it to the case. If the unit is released back into
service without performing the repair, make sure to also release the campaign in Service Management.
3. If you are not using Service Management to start repair orders, review SIR for Complete next to the 46-
020 campaign code prior to performing this repair.
4. Follow the procedures in the Attachments section to inspect the ePTO system and replace part(s) as
necessary.
Warranty
Starting on 06/25/2026 and for repairs completed by 07/01/2027, Peterbilt will pay for parts at dealer net
plus applicable mark-up and labor:
¢ 0.4 hours to inspect the ePTO system for aftermarket equipment and install the motor mount shim. Use
Recommended Repair Code 46-020A.
° 1.6 hours to inspect the ePTO system for aftermarket equipment, install the motor mount shim, replace
the spline shaft, and inspect the ePTO motor's spline socket. Use Recommended Repair Code 46-020B.
¢ 11.2 hours to inspect the ePTO system for aftermarket equipment, install the motor mount shim,
replace the spline shaft, inspect the ePTO motor's spline socket, and replace the ePTO motor. Use
Recommended Repair Code 46-020C.
¢ File an additional claim for extraordinary circumstances. A Recommended Repair for standard labor

must be filed first.
¢ File the claim within 14 days in accordance with the Warranty Policy.
Take-Off Parts Disposition:
¢ Return cores through EZ Trac

PRWS CLAIM CODING

Campaign |46-020 |Campaign Type |Field Repair

Code:

Claim Truck Repair Type Proactive

Category:

Customer |001 Causal Code 30

Concern

Code

Corrective (03 Responsibility |CAMP-

Action Code Code: Campaign

Failure 048- Causal Part E0S-6022

Location 001-006

N/A

Supplier SRT Code B26-04A

Code (0.4 hours)
Inspect the
ePTO system
for
aftermarket
equipment
and install
the motor
mount shim
per bulletin
procedure
B26-04B (1.6
hours)
Inspect the
ePTO system
for
aftermarket
equipment,
install the

motor mount
shim, replace
the spline
shaft, and
inspect the
ePTO motor’s
spline socket
per bulletin
procedure
B26-04C
(11.2 hours)
Inspect the
ePTO system
for
aftermarket
equipment,
install the
motor mount
shim, replace
the spline
shaft, inspect
the ePTO
motor's
spline socket,
and replace
the ePTO
motor per
bulletin
procedure
For campaign filing questions, reference Peterbilt Warranty Procedure Manual - Section 8.
Parts
Quantity Part Description Stock
Number Location
SPLINE SHAFT,
1 £05-6024 PTO PDC
SHIM — PTO,
1 Y80-6001 BRACKET PDC
1
(as needed ePTO MOTOR
per CPT110412 ASSY PDC
inspection)
Partial N/A HIGH-PRESSURE | Locally
container SYNTHETIC sourced
GREASE, NLGI 2
WITH EP

necessary.

Attachments

46-020: Model 520 BEV and 579 BEV Electric Power Take-Off Motor Mount and Spline - Repair Procedure
46-020: Model 520 BEV and 579 BEV Electric Power Take-Off Motor Mount and Spline Upfit - Chassis List
46-020: Model 520 BEV and 579 BEV Electric Power Take-Off Motor Mount and Spline Upfit - US Customer
Letter

46-020: Model 520 BEV and 579 BEV Electric Power Take-Off Motor Mount and Spline Upfit - CAN Customer
Letter

Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
A PACCAR COMPANY Renton, WA 98057
(425) 828-5888
[Date]
Subject: 46-020: Model 520 BEV and 579 BEV Electric Power Take-Off Motor Mount and
Spline Upfit .
Expiration Date: 07/01/2027 Gea uel
FIELD SERVICE CAMPAIGN Beales
aA
This notice applies to your vehicle(s) with VIN(s) listed at the bottom or back of this page.
Dear Peterbilt Customer,
Peterbilt Motors Company has determined that certain Model 520 BEV and 579 BEV vehicles
manufactured between 05/06/2022 and 06/06/2025 with electric power take-off (ePTO) motors are
eligible to have a new ePTO motor mount shim installed to protect against early-stage spline wear.
What is the problem? Possible early-stage wear on ePTO motor splines.
What will your dealer do? —_ Inspect the ePTO system. Install and replace one or more parts
as required.
What should you do? Contact your dealer to schedule a repair appointment. This
service may require up to 12 hours of labor.
To locate your nearest dealer please scan the QR code at the top of this letter or use the Dealer
Locator at www.Peterbilt.com. When scheduling this service, please refer to campaign 46-020:
Model 520 BEV and 579 BEV Electric Power Take-Off Motor Mount and Spline Upfit and the
VIN(s) listed in this letter. There will be no charge to you if completed by 07/01/2027.
If you no longer own the vehicle(s), please send an email to [email protected] with the
complete VIN(s) and the name and address of the new owner.
We appreciate your attention to this matter and value your loyalty to Peterbilt and its dealer
network.
Sincerely,
Peterbilt Customer Service

Peterbilt Motors Company
Customer Service Department
C/O PACCAR Parts
750 Houser Way North
A PACCAR COMPANY Renton, WA 98057
(425) 828-5888
[Date]
Subject: 46-020: Model 520 BEV and 579 BEV Electric Power Take-Off Motor Mount and
Spline Upfit .
Expiration Date: 07/01/2027 Gea uel
FIELD SERVICE CAMPAIGN Beales
aA
This notice applies to your vehicle(s) with VIN(s) listed at the bottom or back of this page.
Dear Peterbilt Customer,
Peterbilt Motors Company has determined that certain Model 520 BEV and 579 BEV vehicles
manufactured between 05/06/2022 and 06/06/2025 with electric power take-off (ePTO) motors are
eligible to have a new ePTO motor mount shim installed to protect against early-stage spline wear.
What is the problem? Possible early-stage wear on ePTO motor splines.
What will your dealer do? —_ Inspect the ePTO system. Install and replace one or more parts
as required.
What should you do? Contact your dealer to schedule a repair appointment. This
service may require up to 12 hours of labor.
To locate your nearest dealer please scan the QR code at the top of this letter or use the Dealer
Locator at www.Peterbilt.com. When scheduling this service, please refer to campaign 46-020:
Model 520 BEV and 579 BEV Electric Power Take-Off Motor Mount and Spline Upfit and the
VIN(s) listed in this letter. There will be no charge to you if completed by 07/01/2027.
If you no longer own the vehicle(s), please send an email to servicebulletins@paccar.com with the
complete VIN(s) and the name and address of the new owner.
We appreciate your attention to this matter and value your loyalty to Peterbilt and its dealer
network.
Sincerely,
Peterbilt Customer Service

Peterbilt Motors Company
Colrbilt Customer Service Department
C/O PACCAR Parts
750 Houser Way North
A PACCAR COMPANY Renton, WA 98057
(425) 828-5888
[Date] OR eto
Objet : 46-020 — Support de moteur de la prise de mouvement électrique et adaptation epee
de la cannelure sur véhicule électrique a batterie modéles 520 BEV et 579 naar
BEV ea
Date d’expiration : 07/01/2027
CAMPAGNE DE SERVICE SUR LE TERRAIN
Cet avis concerne votre (vos) véhicule(s) dont le(s) NIV(s) se trouve(nt) au bas ou au verso de la
présente.
Cher client Peterbilt,
Peterbilt Motors Company a constaté que certains véhicules électriques a batterie de modéles
520 BEV et 579 BEV, fabriqués entre le 06/05/2022 et le 06/06/2025, avec moteurs équipés
d’une prise de mouvement électrique (ePTO) sont admissibles 4 recevoir une nouvelle cale de
support de moteur de la prise de mouvement électrique installée afin de protéger contre l'usure
précoce des cannelures.

Quel est le probléme? Possibilité d’usure précoce des cannelures du moteur de la
prise de mouvement électrique

Que fera votre Procédera a l’inspection du systéme de prise de mouvement

concessionnaire? électrique. Installera et remplacera une ou plusieurs piéces, au
besoin.

Que devez-vous faire? Communiquer avec votre concessionnaire afin de prendre
rendez-vous pour une réparation. Ce service peut nécessiter
jusqu’a 12 heures de main-d’ceuvre.

Afin de localiser votre concessionnaire le plus prés, veuillez balayer le code QR dans le coin
supérieur droit de la présente ou consulter le Trouver un concessionnaire sur www.Peterbilt.com.
Au moment de prendre rendez-vous pour ce service, veuillez vous référer a la campagne 46-020
— Support de moteur de la prise de mouvement électrique et adaptation de la cannelure sur
véhicule électrique a batterie modéles 520 BEV et 579 BEV, ainsi qu’au(x) NIV(s) listé(s) a la
présente. Ce service sera sans frais s’il est complété avant le 07/01/2027.

Si vous n’étes plus le propriétaire de ce(s) véhicule(s), veuillez faire parvenir un courriel a
[email protected] avec le(s) NIV(s) complet(s), ainsi que le nom et l’adresse du
nouveau propriétaire.

Peterbilt Motors Company
Colrbilt Customer Service Department
C/O PACCAR Parts
750 Houser Way North
A PACCAR COMPANY Renton, WA 98057
(425) 828-5888
Nous apprécions |’attention que vous portez a cette affaire et valorisons votre fidélité envers
Peterbilt et son réseau de concessionnaires.
Salutations,
Service a la clientéle de Peterbilt