121602

Technical Service Information
TSI–12-16-02R2
This TSI replaces 12-16-02R1
Date: NOVEMBER 2015
Subject File: CAB / BUS BODY
Subject: Change in Seat Belt Manufacturer – Inspection and Replacements
Model: All Bus Models
End Date: 21 March 2010
Model: All Truck Models
End Date: 02 May 2010
DESCRIPTION
This TSI affects all buses and trucks built on or before the dates listed above, as well as those equipped
with factory-installed seat belts.
Starting on 22 March 2010 for bus models, and 03 May 2010 for truck models, all seat belts were provided by
a new supplier because the old vendor discontinued production. The components of the new belt system
are not interchangeable with the components of the old belt system; therefore, they cannot be intermixed for
service. Example – If you require a replacement 3-point retractable seat belt, you will be required to replace
the seat belt tether as well, as a set.
Seat belts in a commercial vehicle are considered to have a finite service life and should be inspected and
replaced at established intervals, or earlier as required. Seat belts should be inspected for wear every 20,000
miles. Belts subject to severe environmental or vocational conditions should be inspected more often. All
seat belts should be replaced regardless of condition every 5 years.
© 2015 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.
1
PARTS INFORMATION
NOTE: Please verify your original part number using Parts Catalog, by VIN.
NOTE: Because certain components of the previous manufacturer are still available through service
parts, it is recommended to use those parts, when necessary and if available, to make the repair.
Table 1.
Parts Information
Original Part
Number
3549505C2
3549506C2
Description
New Part Number
Quantity
3711395C1
3711397C1
BELT BUCKLE STATIC SEAT LH
BELT BUCKLE STATIC SEAT RH
1
1
3554368C1
3554368C1
BOLT TORX M12 X 1.7 X 54 SEAT BELT
1
3621446C1
3621450C91
3711399C1
3711358C91
BELT SEAT STATIC BUCKLE
BELT SEAT AIR BUCKLE W / TETHER
1
1
3621451C92
3628759C1
3711359C91
3711400C1
BELT BUCKLE AIR SWIVEL SEAT
BELT SAFETY BUCKLE AIR SEAT BLK
1
1
3668625C91
3711425C91
BELT SAFETY UPPER BUCKLE
1
3668626C91
3672136C2
3711426C91
3711382C1
BELT SAFETY UPPER BUCKLE
BELT TETHER ASM BLACK
1
1
3672139C92
3672209C92
3711360C91
3711423C91
BELT BUCKLE AIR SEAT W / TETHER
BELT SAFETY BUNK STRAP STAND
1
1
3672210C92
3676625C1
3711424C91
3711346C1
BELT SAFETY BUNK STRAP LATTO
BELT TETHER UPPER BUNK SIDE
1
1
3676626C1
3711347C1
BELT TETHER LOWER BUNK SIDE
1
3676629C91
3711415C91
BELT SAFETY UPPER BUNK MESH ASSY
1
3676630C91
3676631C91
3711419C91
3711420C91
BELT SAFETY LOWER 36" BUNK
BELT SAFETY LOWER 42" BUNK
1
1
3678771C1
3711330C1
BELT SAFETY RETRACTOR ASSY BLK
1
3678772C1
3711331C1
BELT SAFETY RETRACTOR ASSY RED
1
3678773C1
3678774C1
3711333C1
3711337C1
BELT SAFETY RETRACTOR ASSY ORANGE
BELT SAFETY RETRACTOR ASSY BLK
1
1
3678775C1
3711338C1
BELT SAFETY RETRACTOR ASSY RED
1
3678776C1
3711340C1
BELT SAFETY RETRACTOR ASY ORANGE
1
3678779C91
3711410C91
BELT SAFETY CNTR SEAT W / BUC BLK
1
3678780C91
3678781C91
3711412C91
3711411C91
BELT SAFETY CNTR SEAT W / BUC RED
BELT SAFETY CNTR SEAT W / BUC ORG
3678782C91
3711355C91
BELT BUCKLE AIR SEAT W / TETHER
1
1
1
3678783C91
3711357C91
BELT BUCKLE AIR SEAT W / TETHER
1
3678784C1
3711343C1
BELT SAFETY RETRACTOR ASSY BLK
1
3678785C1
3711344C1
BELT SAFETY RETRACTR ASY ORANGE
1
3678786C1
3678983C1
3711345C1
3711388C1
BELT SAFETY RETRACTR ASY GREEN
BELT TETHER ASM BLACK
1
1
3678984C1
3711389C1
BELT TETHER ASM
1
TSI–12-16-02R2
2
PARTS INFORMATION (CONT.)
Table 1.
Parts Information (cont.)
Original Part
Number
3678985C1
Quantity
Description
New Part Number
3711390C1
BELT TETHER ASM
1
3678986C1
3711391C1
BELT TETHER ASM
1
3678988C1
3678989C1
3711392C1
3711393C1
BELT TETHER ASM
BELT TETHER ASM
1
1
3678990C1
3678993C91
3711394C1
3711404C91
BELT TETHER ASM
BELT SAFETY BUNK STRAP 36"
1
1
3678994C91
3711405C91
BELT SAFETY BUNK STRAP 42"
1
3690604C91
3711356C91
BELT BUCKLE AIR SEAT W / TETHER
1
3690605C1
3711396C1
BELT BUCKLE STATIC SEAT LH
1
3690606C91
3691819C1
3711354C91
3711398C1
BELT BUCKLE AIR SEAT W / TETHER
BELT BUCKLE STATIC SEAT RH
1
1
3692141C1
3711331C1
BELT SAFETY RETRACTOR ASSY RED
1
3692142C91
3692246C1
3711413C91
3711338C1
BELT SAFETY CNTR SEAT ASSY RED
BELT SAFETY RETRACTOR ASSY, EXT CAB, RED
1
1
3812034C1
3812035C1
3711351C1
3711346C1
BELT TETHER BACK UPPER AND LOWER BUNK
BELT TETHER UPPER BUNK SIDE
1
1
3813066C2
3815190C2
3711348C1
3711414C1
BELT TETHER SIDE UPPER
BELT SAFETY BUNK MESH
1
1
3817712C1
3711384C1
BELT TETHER SEAT TETHER
1
3678992C91
3711403C91
BELT SAFETY BUNK STRAP EXT C
1
3545029C2
3711388C1
BELT TETHER ASM BLACK
1
3545030C2
3711389C1
BELT TETHER ASM
1
3549268C91
3549504C5
3711403C91
3711334C1
BELT SAFETY BUNK STRAP EXT C
BELT, SAFETY, RETRACTOR, EXTEND
1
1
3549507C93
3711352C91
BELT, BUCKLE, AIR SEAT W / TETH
1
3549508C94
3711407C91
BELT, SAFETY, CENTER OCCUPANT
1
3592993C1
3711328C1
BELT, SAFETY, RETRACTOR ASSY, RED
1
3592998C1
3592999C93
3711335C1
3711408C91
BELT, SAFETY, RETRACTOR RED WEBBING
BELT, SAFETY, CTR OCCUPANT RED WEBBING
1
1
3593000C1
3593005C1
3711329C1
3711336C1
1
1
3593006C92
3711409C91
3607754C1
3607755C1
3711380C1
3711381C1
BELT, SAFETY, RETRACTOR ORANGE WEBBING
BELT, SAFETY, RETRACTOR ORANGE WEBBING
BELT, SAFETY, CTR OCCUPANT ORANGE
WEBBING
BELT, TETHER RED FOR NFPA SEATS
BELT, TETHER RED FOR NFPA SEATS
3607756C91
3711353C91
BELT, BUCKLE AIR SEAT W / TETHER
1
3621444C1
3711341C1
BELT, SAFETY RETRACTOR
1
3621445C1
3711394C1
BELT TETHER ASM
1
3
1
1
1
TSI–12-16-02R2
PARTS INFORMATION (CONT.)
Table 1.
Parts Information (cont.)
Original Part
Number
3621447C1
Description
New Part Number
Quantity
3711393C1
BELT TETHER ASM
1
3621448C1
3711392C1
BELT TETHER ASM
1
3666767C1
3672098C1
3711342C1
3711427C1
BELT, SAFETY SEAT / RETRACTOR ORN
BELT,SAFETY SEAT / RETRACTOR GRN
1
1
3804583C2
3598679C2
3711401C1
3711402C1
BELT, SAFETY, BUNK RESTRAINT, 42"
BELT, SAFETY, BUNK RESTRAINT, 36"
1
1
3812036C1
3711350C1
BELT, TETHER, LOWER BUNK SIDE
1
3549268C91
3711406C91
3711383C1
BELT, SAFETY EXT CAB BUNK STRAP
BELT, TETHER
1
3672137C2
3711425C91
3711346C1
BELT SAFETY UPPER BUCKLE
BELT TETHER UPPER BUNK SIDE
1
2
3711415C91
BELT SAFETY UPPER BUNK MESH ASSY
1
3711351C1
3711426C91
BELT TETHER BACK UPPER AND LOWER BUNK
BELT SAFETY UPPER BUCKLE
2
1
3711415C91
BELT SAFETY UPPER BUNK MESH ASSY
1
3812038C91
3711421C91
BELT, SAFETY, LOWER 36" BUNK TENT
1
3812039C91
3678771C1
3711422C91
3711330C1
BELT, SAFETY, LOWER 42" BUNK, TENT
BELT SAFETY RETRACTOR ASSY BLK
1
1
3678772C1
3711331C1
BELT SAFETY RETRACTOR ASSY RED
1
3678773C1
3711333C1
BELT SAFETY RETRACTOR ASSY ORANGE
1
3678774C1
3711337C1
BELT SAFETY RETRACTOR ASSY BLK
1
3678775C1
3711338C1
BELT SAFETY RETRACTOR ASSY RED
1
3678776C1
3678784C1
3711340C1
3711343C1
BELT SAFETY RETRCTOR ASSY ORANGE
BELT SAFETY RETRACTOR ASSY BLK
1
1
3678785C1
3711344C1
BELT SAFETY RETRACTOR ASY ORANGE
1
3678786C1
3711345C1
BELT SAFETY RETRACTOR ASSY GREEN
1
3676625C1
3711346C1
BELT TETHER UPPER BUNK SIDE
1
3676626C1
3813066C2
3711347C1
3711348C1
BELT TETHER LOWER BUNK SIDE
BELT TETHER SIDE UPPER
1
1
3812034C1
3690606C91
3711351C1
3711354C91
BELT TETHER BACK UPPER AND LO
BELT BUCKLE AIR SEAT W / TETHER
1
1
3678782C91
3711355C91
BELT BUCKLE AIR SEAT W / TETHER
1
3690604C91
3711356C91
BELT BUCKLE AIR SEAT W / TETHER
3678783C91
3711357C91
BELT BUCKLE AIR SEAT W / TETHER
1
1
3621450C91
3711358C91
BELT SEAT AIR BUCKLE W / TETHER
1
3621451C92
3711359C91
BELT BUCKLE AIR SWIVEL SEAT
1
3672139C92
3711360C91
BELT BUCKLE AIR SEAT W / TETHER
1
3672136C2
3711382C1
BELT TETHER ASM BLACK
1
3812037C91 *
3808811C91 *
TSI–12-16-02R2
4
1
PARTS INFORMATION (CONT.)
Table 1.
Parts Information (cont.)
Original Part
Number
3817712C1
Quantity
Description
New Part Number
3711384C1
BELT TETHER SEAT TETHER
1
3678983C1
3711388C1
BELT TETHER ASM BLACK
1
3678984C1
3678985C1
3711389C1
3711390C1
BELT TETHER ASM
BELT TETHER ASM
1
1
3678986C1
3678988C1
3711391C1
3711392C1
BELT TETHER ASM
BELT TETHER ASM
1
1
3678989C1
3711393C1
BELT TETHER ASM
1
3678990C1
3711394C1
BELT TETHER ASM
1
3549505C2
3711395C1
BELT BUCKLE STATIC SEAT LH
1
3690605C1
3549506C2
3711396C1
3711397C1
BELT BUCKLE STATIC SEAT LH
BELT BUCKLE STATIC SEAT RH
1
1
3691819C1
3711398C1
BELT BUCKLE STATIC SEAT RH
1
3621446C1
3628759C1
3711399C1
3711400C1
BELT SEAT STATIC BUCKLE
BELT SAFETY BUCKLE AIR SEAT BLK
1
1
3678992C91
3678993C91
3711403C91
3711404C91
BELT SAFETY BUNK STRAP EXT C
BELT SAFETY BUNK STRAP 36"
1
1
3678994C91
3678779C91
3711405C91
3711410C91
BELT SAFETY BUNK STRAP 42"
BELT SAFETY CNTR SEAT W/BUC BLK
1
1
3678781C91
3711411C91
BELT SAFETY CNTR SEAT W / BUC ORANGE
1
3678780C91
3711412C91
BELT SAFETY CNTR SEAT W / BUC RED
1
3692142C91
3711413C91
BELT SAFETY CNTR SEAT ASSY RED
1
3815190C2
3711414C1
BELT SAFETY BUNK MESH
1
3676629C91
3821584C91
3711415C91
3711415C91
BELT SAFETY UPPER BUNK MESH ASSY
BELT SAFETY UPPER BUNK MESH ASSY
1
1
3554368C1
N/C
BOLT TORX M12 X 1.7 X 54 SEAT BELT
1
3554369C1
N/C
BOLT SPECIAL SEAT BELT ANCHOR
1
3812035C1
3711346C1
BELT TETHER UPPER BUNK SIDE
1
3549268C91
3812036C1
3711403C91
3711350C1
BELT SAFETY BUNK STRAP EXT C
BELT, TETHER, LOWER BUNK SIDE
1
1
NOTE: * Must be serviced with all “New” part numbers and quantities as a multiple replacement.
5
TSI–12-16-02R2
SERVICE PROCEDURE
WARNING: To prevent property damage, personal injury, and / or death, park vehicle on hard,
flat surface, turn engine off, set parking brake, and install wheel chocks to prevent the vehicle from
moving in both directions.
WARNING: To prevent belt failure, property damage, personal injury, and / or death, seat belts
should be inspected for wear every 20,000 miles. Seat belts subject to severe environmental or
vocational conditions should be inspected more often. All seat belts should be replaced at least
every 5 years.
WARNING: To prevent personal injury and / or death, always wear safe eye protection when
performing vehicle maintenance.
WARNING: To prevent belt failure, property damage, personal injury, and / or death, NEVER
attempt to interchange parts / components between the old system and the new system. The
components of the new belt system are not interchangeable with the components of the old belt
system; therefore, they cannot be intermixed for service.
NOTE: Because certain components of the previous manufacturer are still available through service
parts, it is recommended to use those parts, when necessary and if available, to make the repair.
1. Inspect seat belt for components that need replacement. Check seat belts for any of the following
conditions:
a. Frayed seat belt webbing
b. Seat belt retractors that do not operate smoothly
c.
Seat belts that do not easily lock and unlock into buckle assemblies
d. D-rings that are cracked, bent, or abnormally loose
e. Seat belt retractors that do not retract
TSI–12-16-02R2
6
SERVICE PROCEDURE (CONT.)
WARNING: To prevent belt failure, property damage, personal injury, and / or death, NEVER
attempt to interchange parts / components between the old system and the new system. The
components of the new belt system are not interchangeable with the components of the old belt
system; therefore, they cannot be intermixed for service.
NOTE: Perform Step 2 only if PDC has original part number available to repair assembly.
2. If original part is available, order part / assembly and repair safety belt assembly. Refer to service manual,
service bulletin, or equivalent for detailed instruction.
NOTE: Perform Step 3 only if original part number is no longer available. Refer to PARTS INFORMATION
TABLE for cross reference.
3. If original part is not available, replace entire seat belt system (for that individual seating position) using
components assembled from new part numbers. Refer to service manual, service bulletin, or equivalent
for detailed instruction.
7
TSI–12-16-02R2