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Service bulletin FSB 810-004

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 id10178017
Published by NHTSA2020-08-05
Manufacturer's numberFSB 810-004
Manufacturer's date2020-07-17
NHTSA componentSTRUCTURE

NHTSA's summary

Back of Cab Crack, Repair

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

Body and frame

Vehicles listed
MACK LR2016, 2017, 2018, 2019, 2020, 2021

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

Other bulletins for the same vehicles and component
KC-22442023-03-07. Service bulletin. Mack Model TE,LR - Frame Over Height
S75522021-02-01. Service bulletin. Incorrect Data on Door Label Set
K713130152019-02-19. Service bulletin. Hood Insulation Separating From Hood, Insulation Installation Instructions
K153254242018-10-15. Service bulletin. Expired - Mack Chassis - Diagnostic Trouble Code ( DTC ) P026C Lighting The Malfunction Indicator Light ( MIL ) - US14+OBD13, US14+OBD15 And US14+OBD16 - Commonly Model Years 2015 To 2017 (Non-Common Rail Fuel System) Chassis
K129024142018-06-18. Service bulletin. Engine Speed Does Not Ramp Up From Body Builder Module Request; Requests Sent Via Data Link / Body Link Connector, Not By Switch Or Hardwired Circuit - Generation 2 (INT-GEN2) And Newer (Commonly Model Year 2018)