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Service Programs

Service Programs are product modifications that should be performed on all affected vehicles, which will enhance the performance or reliability of the affected vehicle.

To view a Service Program, select from the links to the right. To download a Service Program, right-click on the link and select "Save Target As" from the menu.


Replacement of Overslung Crossmember
SP-7-140-002 (741 KB)

WX/WXR and WXLL Trucks with Rusting Driver's Side Vent Window Frame:
SP 8-844-001 (917 KB)

WX/WXR Trucks without Radiator Surround Panel:
SP 8-672-001 (648 KB)

SP 8-662-001 Cab Latch Bracket
SP 8-662-001 (318 KB)

Omitted Weld on Right-Side Cab Hinge
SP 8-661-001 (403 KB)

WX/WXR and WXLL Trucks with Loose Forward Spring Hanger Fasteners:
SP 7-370-001 (980 KB)

Haulmaax Suspension Plate Upgrade
SP 7-350-004 (2.15 MB)

Hendrickson Haulmaax Suspension Plate Upgrade
SP 7-350-004 (1.94 MB)

WX/WXR Trucks with Relaxation of Rear Suspension Fasteners:
SP 7-350-003 (3.95 MB)

WX/WXR Trucks with Relaxation of Rear Suspension Fasteners (Addendum):
SP 7-350-003 (134 KB)

WX/WXR and WXLL Trucks with 54" Hendrickson HAULMAAX Suspension:
SP 7-350-002 (541 KB)

Cracked Welds on Fabricated Uprights
SP 7-236-001 (1.07 MB)

Incorrect brake pedal installation, right side driver station
SP 5-720-001 (389 KB)

ArvinMeritor Adjusting Ring Interference
SP 4-330-001 (620 KB)

ACX Fuse Box
SP 3-872-001 (755 KB)

WX/WXR and WXLL Trucks with Incorrectly Wired 12 Volt Electric Fuel Heater:
SP 3-438-001 (573 KB)

WXLL Secondary Light Bar Upgrade
SP 3-144-003 Rev 1A (428 KB)

WX/WXR Trucks Requiring New Gateway Module:
SP 3-144-002 (1.34 MB)

WX/WXR Trucks with Faulty Gateway Module (Addendum):
SP 3-144-001-R1 (122 KB)

WX/WXR Trucks with Faulty Gateway Module:
SP 3-144-001 (724 KB)

WX/WXR and WXLL Trucks with Cummins ISM Engine Displaying Engine Fault Code when Fan Engages:
SP 2-872-001 (2.42 MB)

Diesel Particulate Filter regeneration enhancements for Cummins ISC/ISL engines
SP 2-230-001 (705 KB)

Coolant Surge Tank Cover Service Program
SP 2-212-003 (1.44 MB)

WX/WXR Trucks Equipped with Horizontal Exhaust Requiring an Additional Surge Tank Support Bracket:
SP 2-212-002 (1023 KB)

WX/WXR and WXLL Trucks with Cummins ISL03 or ISC03 Engines with an Expansion Tank Pressure Cap with Incorrect Pressure Rating:
SP 2-212-001 (241 KB)

WX/WXR and WXLL Trucks with Cummins ISM Engine and Texaco Extended Life Coolant:
SP 2-209-001 (127 KB)

Contact Between the Fan Ring and the Left-Side Radiator Stay Rod
SP 2-202-001 (680 KB)

Incorrect Spacing And Alignment Between The Fan, Fan Ring, And Radiator Shroud; Incorrect Fan Ring Seal Installed
SP 2-201-001 (2.03 MB)

WX/WXR and WXLL Trucks with Cummins ISL/ISC Engine Low Coolant Interface Connector:
SP 2-132-001 (2.61 MB)

WX/WXR Trucks with Loose Front Engine Mount Fasteners:
SP 2-120-001 (923 KB)

ACX Light Bar Replacement
3-144-004 (419 KB)