13-055

13-055 Low Mount Air Tank Bracket
Page 1 of 2
Service Bulletin
13-055
Section
13 - Brakes and Air Systems
Description
Improved low mount air tank brackets are available.
Release Date
10/1/2020
Introduction
Peterbilt has introduced an improved mounting bracket for low mount air tanks for vehicles built between January
01, 2017 and July 06, 2020. Torsional vibration may stress the currently-installed brackets and cause them to fail
near the bottom of the frame rail.
Resolution
Fix-as-Fail
If a customer comes into your dealership and demonstrates the condition above, use the procedure below to replace the low
mount air tank brackets.
Warranty
Through Standard Warranty, Peterbilt will pay for parts at dealer net plus applicable mark-up and labor:

0.8 hours labor to remove and replace both air tank brackets on low mount air tank. File a long form claim and
reference 13-055.
For Field...
Enter...
Failure Location
013-010-005
Failure Type
115
Claim Type
N
Campaign Number
13-055
Labor
013-152 0.40 hours labor Air Tank Bracket R & R X2 for both brackets
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13-055 Low Mount Air Tank Bracket
Page 2 of 2
Parts
Parts are available from PACCAR Parts.
Quantity New Part Number
Description
2
G11-6439-001
BRACKET- AIR TANK MTG
2
G11-6439-002
BRACKET- AIR TANK MTG
2
G11-6439-006
BRACKET- AIR TANK MTG
2
G11-6439-007
BRACKET- AIR TANK MTG
2
G11-6439-009
BRACKET- AIR TANK MTG
4
HWC00113
NUT-HEX SL NYL 5/16-24NFX0.344T HITNSL
4
HWC07896
WASHER-ROUND 5/16X11/16X0.065 ZN/CLR I
2
G34-6009
U-BOLT-AIR TANK HD 9.5"
Procedure
If the condition stated above has been determined to be present:
Review
1.
WebECAT for the correct bracket part variation for the vehicle being repaired.
Remove
2.
and replace both air tank brackets and reattach to the frame. Torque the frame bolts to 115lb-ft.
Use
3. the U-bolt listed above. Torque the U-bolts to 15lb-ft.
Authored by: DKH
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