FIELD SERVICE CAMPAIGN
BULLETIN
Subject:

Field Service Campaign D19M4
DetroitTM Axle M2 Chassis Stabilizer Bracket Inspection

Issue Involved
Detroit Diesel Corporation (DDC) has determined that certain Freightliner® M2 vehicles
with DetroitTM Axles and front stabilizer bars will need to have the front axle stabilizer
brackets inspected for damage.
On specific vehicles built between June 2014 and March 2018, a different I-beam design
was introduced on Model 3 DetroitTM Axles that does not have a flat mating surface on
the bottom side of the I-beam where the optional stabilizer brackets are mounted. This
may result in damage to the stabilizer bracket due to bending stress during assembly of
the U-bolts at the truck manufacturing plant.
There are approximately 1,975 vehicles affected by this Field Service Campaign. These
specific vehicles will need to have the stabilizer brackets and I-beams inspected for
damage and may require installation of spacers and replacement of the stabilizer
brackets and mounting hardware. Some units in this population have already had the
repair done at the truck manufacturing plant. The inspection procedure will help to
determine which vehicles have already been completed.

Vehicles Involved
A list of vehicles that require this inspection is attached with this bulletin.

Owner Notification
Detroit Diesel will notify owners of equipment incorporating axles identified with this
Field Service Campaign. A copy of the owner letter that will be used by Detroit
Diesel is enclosed with this Field Service Campaign Bulletin.

Field Service Campaign Bulletin D19M4
Page 2

Dealer Campaign Responsibility
Detroit Diesel authorized DetroitTM Axle repair facilities are to service all axles
subject to this Field Service Campaign. Field Service Campaign D19M4 is to be
performed at no charge to owners on all affected axles under the axle warranty or
prior to August 26, 2020, under the provisions of this Field Service Campaign.
Please use the appropriate steps, noted below, for indicating that Field Service
Campaign D19M4 has been completed.

Daimler Trucks North America Vehicles


Check the base label (Form WAR259) to see if Field Service Campaign D19M4
has been completed. The base label is usually located on the passenger-side
door about 30 cm (12 inches) below the door latch. If Field Service Campaign
D19M4 has been completed, no further work is needed. If base label is not
located on the passenger-side door, please affix label (Form WAR259) 30 cm
(12 inches) from the door latch.



Upon completion of Field Service Campaign D19M4, clean a spot on the base
label (Form WAR259), write the Field Service Campaign Number (D19M4) on a
blank, black completion sticker (Form WAR261), and attach it to the base label.

Ordering Information
1. If you do not have the appropriate Form or Labels (DDC_WAR 259,
DDC_WAR 260. DDC_WAR 261), they can be ordered from EPI Printers
by emailing your order to [email protected].
2. You can also fax in your order to 269-698-4240 Attn: Corrina Cotton.
3. Contact EPI Printers at 734-464-9000.

Parts Information
The parts required for this field service campaign will depend on the results of the
inspection. If replacement of the stabilizer brackets is required, the parts in Table 1
will need to be replaced on the vehicle. The part numbers for the components to be
replaced may be different for each vehicle and should be located in PartsPro for the
specific VIN.

Field Service Campaign Bulletin D19M4
Page 3
Reference No.
Part Number
13 (Figure 1)
14 (Figure 1)
Refer to PartsPro
15 (Figure 1)
for the correct parts
16 (Figure 1)
to order for the
12 (Figure 2)
specific VIN
13 (Figure 2)
14 (Figure 2)
Table 1 – Parts Information

Part Description
Front Stabilizer Bracket
Washer
Hex Nut
Hex Capscrew
U-Bolt
Washer
Hex Nut

Quantity Per Vehicle
2
4
2
2
4
20
8

If the stabilizer brackets are required to be replaced as part of this campaign, the
part number will depend on the axle type that is in the Vehicle. The campaign has
been broken down into 3 groups (A, B, and C). Table 2 below give the part
numbers for the stabilizer brackets based on the campaign group for the vehicle.
Campaign Group
I-Beam
Stabilizer Bracket Part Number
A
A6813310101
16-17353-000
B
A6813310201
16-17353-001
C
A6813310301
16-17353-002
Table 2 – Stabilizer Bracket Part Numbers

Field Service Campaign Bulletin D19M4
Page 4

Figure 1: Front Axle Stabilizer bar Diagram
Note: The diagram in PartsPro may be different for the VIN you are working on.

Field Service Campaign Bulletin D19M4
Page 5

Figure 2: Front Axle Suspension Diagram
Note: The diagram in PartsPro may be different for the VIN you are working on.

Stabilizer Bracket and I-Beam Inspection Procedure
1.

Park the vehicle in the designated repair area and apply the parking brake.
Turn off the ignition, chock the rear wheels, disconnect the batteries, and
perform any other applicable safety steps.

2.

Raise the front of the vehicle until both wheels are off the ground, then
support the front steer axle securely on jack stands.

Field Service Campaign Bulletin D19M4
Page 6

Use safety stands to securely support all axle and frame weight during
suspension repairs. Unsecured components may drop when fasteners are
loosened or removed, causing component damage and serious personal injury.

3.

Check the mating surface on the bottom of the front side of the I-Beam where
the stabilizer bracket is mounted (see Fig 3 and 4).

Figure 3: I-Beam Stabilizer Mounting Location

Figure 4: I-Beam Stabilizer Mounting Surface Inspection

Field Service Campaign Bulletin D19M4
Page 7
4.

Is the front axle equipped with stabilizer brackets mounted to the I-beam?
a. If Yes, proceed to step 5.
b. If No, no further work is required. Proceed to step 16.

5.

Does the I-beam have the large flat mating surface for the stabilizer mounting
brackets?
a. If Yes, the I-beam and stabilizer brackets are OK. Proceed to step 16.
b. If No, further inspection is required. Proceed to step 6.

6.

Does the front axle already have washers installed between the I-Beam and the
stabilizer bracket (see Fig 5)?
a. If Yes, the repair has already been completed and no other work is required.
Proceed to step 16.
b. If No, additional work is required. Proceed to step 7.

Figure 5: Front Axle with Washers Installed between I-Beam and Stabilizer
Bracket

7.

Loosen the stabilizer bar bolts (Figure 1, #16) from the stabilizer bracket and
remove the bolts on both sides.

8.

Push the stabilizer bar forward to gain access to the stabilizer mounting
bracket.

9.

Remove the high nuts and washers from all four of the U-bolts and discard
them.

10. Remove the stabilizer brackets and all four of the U-bolts and discard them.

Field Service Campaign Bulletin D19M4
Page 8

11. Install four new U-bolts. Put three washers of the correct size (per Table 3) on
each side of only the forward U-bolts between the I-beam and the stabilizer
bracket (12 washers total). See Figure 6 below.
U-Bolt Thread Size
Washer P/N Required
Qty Required
5/8 - 18
23-09114-000
12
3/4 - 16
23-09114-004
12
7/8 - 14
23-09114-005
12
Table 3: Washers to be used for Spacers between I-Beam and Stabilizer
Bracket

Figure 6: Spacers Installed between I-Beam and Stabilizer Bracket

12. Install new washers and high nuts on each of the U-bolts.
13. Torque the nuts on the U-bolts per the torque specification in Table 4, using the
pattern in Figure 7.

Field Service Campaign Bulletin D19M4
Page 9

U-Bolt Thread Size
5/8 - 18

3/4 - 16

7/8 - 14

Torque Specification lbf-ft (N-m)
Stage 1: Hand-tighten
Stage 2: 60 (81)
Stage 3: 180-230 (245-313)
Stage 1: Hand-tighten
Stage 2: 60 (81)
Stage 3: 200 (271)
Stage 4: 270-330 (367-449)
Stage 1: Hand-tighten
Stage 2: 60 (81)
Stage 3: 200 (271)
Stage 4: 420-500 (571-680)

Table 4: U-Bolt Torque Specification

Figure 7: Tightening Pattern for U-bolt High Nuts

14. Push the stabilizer bar back into position in the stabilizer brackets and install
new bolts, washers, and nuts.
15. Torque the stabilizer bolts to 120 to150 lb·ft (163 to 203 N·m).
16. Raise the vehicle and remove the jack stands from under the front steer axle.
17. Lower the vehicle.
18. If the stabilizer brackets and U-bolts were replaced, do a complete front axle
alignment. If not, no alignment is required.
19. Repairs are complete.

Field Service Campaign Bulletin D19M4
Page 10
Notice
Claim administration time, SRT 939-6010A, for 0.3 hours will automatically be added.
No additional operation is required or will be allowed.

Warranty Information
Claim Type:
Modification:
Cause Code:
Primary Failed Part:

Field Service Campaign
D19M4
A1 Campaign
MBA 6813310201

Use this labor operation if no replacement of parts is required (inspection only)
Labor Code:
996-F037A - BRACKET, STABILIZER BAR, INSPECT
(D19M4)
Corrective Action: 06 - Inspect
Labor:
0.2 hours
Use this labor operation if the stabilizer brackets, U-bolts, and hardware had to
be replaced and washers had to be installed between the I-beam and stabilizer
bracket
Labor Code:
996-F037B - SPACER, BRACKET, STABILIZER BAR,
INSTALL (D19M4)

Corrective Action:

12 – Repair Recall/Campaign

Labor:
Parts Return:

2.0 Hours
NONE

Please contact the Detroit™ Customer Support Center at 855-253-0427 or email
[email protected] if you have any questions.

DETROIT DIESEL
13400 Outer Drive West

Detroit, Michigan 48239-4001
BULLETIN

Detroit Diesel Corporation
13400 Outer Drive, West
Detroit, Michigan 48239-4001
Telephone: 313-592-5000

Attention: Vehicle Owner:

Subject: Field Service Campaign D19M4

Detroit™ Axle M2 Chassis Stabilizer Bracket Inspection
Detroit Diesel Corporation (DDC) has determined that certain Freightliner® M2
vehicles with DetroitTM Axles and front stabilizer bars will need to have the front axle
stabilizer brackets inspected for damage.
Certain vehicles built between June 2014 and March 2018, a different I-beam
design was introduced on Model 3 DetroitTM Axles that does not have a flat mating
surface on the bottom side of the I-beam where the optional stabilizer brackets are
mounted and may result in damage to the stabilizer bracket due to bending stress
during assembly of the U-bolts at the truck manufacturing plant.
These specific vehicles will need to have the stabilizer brackets and I-beams
inspected for damage and may require installation of spacers and replacement of
the stabilizer brackets and mounting hardware.
Note that the inspection procedure will help to determine which vehicles have already
been completed and prevent further customer dissatisfaction.
Records available to us indicate that your vehicle has one of the eligible engines.
Instructions for this Field Action have been sent to your local Detroit Diesel Authorized Repair
Facility and the labor time required to perform this repair is approximately 3.1 hours.
Please contact a Detroit Diesel Authorized Repair Facility to arrange to have the Field Action
performed. To locate an authorized facility, search online at
www.detroitdiesel.com/locations/default.aspx.
This service will be completed for you at no charge, prior to September 24, 2020, under the
provisions of this notice.
We are sorry to cause you this inconvenience; however, we have taken this action in the
interest of your continued satisfaction with our products.

DETROIT DIESEL WARRANTY CAMPAIGNS DEPARTMENT
Enclosure

Detroit Diesel Corporation is registered to ISO 9001:2001. Copyright Detroit Diesel Corporation. All rights reserved. Detroit Diesel Corporation is a Daimler company.