WenmarOpen by Wenmar Pro

Service bulletin SB32-033

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10172974
Published by NHTSA2020-03-31
Manufacturer's numberSB32-033
Manufacturer's date2020-03-30
NHTSA componentSUSPENSION

NHTSA's summary

Freightliner Service Bulletin for Front Axle Spacer Replacement. This service bulletin replaces the version dated 05/01/2016. This bulletin is updated to include the parts list. Some vehicles may exhibit a lean (right or left) due to weight difference on the front suspension. While this does not affect the operation of the vehicle, it may be visually unpleasing to many customers. To correct this condition, replace the existing front axle spacer on the low side of the vehicle with a thicker one.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Suspension

Vehicles listed
FREIGHTLINER 108SD2015, 2016, 2017, 2018, 2019, 2020, 2021
FREIGHTLINER 114SD2015, 2016, 2017, 2018, 2019, 2020, 2021
FREIGHTLINER 122SD2015 to 2021
FREIGHTLINER BUSINESS CLASS M22015 to 2021
FREIGHTLINER CASCADIA2015, 2016, 2017, 2018, 2019, 2020, 2021
FREIGHTLINER CORONADO2015, 2016, 2017, 2018, 2019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20256102025-11-04. Suspension
25V7600002025-11-04. SUSPENSION:CRITICAL FASTENERS
20V6600002020-10-27. SUSPENSION:REAR:AXLE:SPINDLE
20V5390002020-09-03. SUSPENSION:MULTIPLE AXLE
18V9130002018-12-19. SUSPENSION:FRONT:CONTROL ARM; STEERING:LINKAGES:TIE ROD ASSEMBLY; STEERING
20183952018-07-30. Suspension
15V5860002015-09-22. SERVICE BRAKES, AIR:DISC:CALIPER; SUSPENSION:REAR
14V3670002014-06-25. SUSPENSION:FRONT; STEERING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
FleetCom_Frnt Susp Bush2026-03-05. Other. Fleet Communications for composite front suspension bushing
FleetCom_Frnt Susp Spring2026-01-08. Other. Fleet Communications for Cascadia Front Suspension Spring Pin Bushings
CXA 10_25_Front Shock2025-11-06. Other. CX Advocate for 18k Front Suspension Shock Absorbers
CXA_10_25_TufTrac M122025-11-05. Other. CX Advocate for TufTrac M12 Bolts (TSB-32-057-FTL)
SF721-OWN LTR2025-10-03. Service campaign. Field Service Campaign for SF721 18k Front Suspension Shock Absorbers
SF721-DLR LTR2025-10-03. Service campaign. Field Service Campaign for SF721 18k Front Suspension Shock Absorbers
SF721-Bulletin2025-10-03. Service campaign. Field Service Campaign for SF721 18k Front Suspension Shock Absorbers
SB32-0562022-03-03. Service bulletin. Freightliner Service Bulletin for Front Spring Eye Bushing Replacement
SS3083-FTL20212021-12-02. Service bulletin. Service Solution for Aero Height Control Interfering with RDF Alignment. The Aerodynamic Height Control feature on the New Cascadia is a feature that raises and lowers the air suspension with relation to vehicle speed in order to reduce drag and achieve better fuel efficiency. The Hadley Smart Valve (HSV) is the module that makes this possible by applying and exhausting air from the rear axle suspension as necessary.
FAB2862021-07-24. Service bulletin. Freightliner Action Bulletin FAB286 Cascadia Rear Suspension Ride Height