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Service bulletin FDM-TSIB-025

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 id10198991
Published by NHTSA2021-07-07
Manufacturer's numberFDM-TSIB-025
Manufacturer's date2021-06-14
NHTSA componentEQUIPMENT

NHTSA's summary

This bulletin provides instructions for bolting the water tank mounting feet to the water tank if the bonded feet become loose.

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

Equipment and accessories

Vehicles listed
OSHKOSH S SERIES1978 to 1993
OSHKOSH S SERIES1997, 1998, 1999, 2000
OSHKOSH S-SERIES2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
OSHKOSH S-SERIES2013 to 2022

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
FDM_TSIB-0472023-12-05. Service bulletin. This bulletin provides instructions for installing rubber hose STAUFF clamps in areas of the vehicle that have hard line STAUFF clamps installed on rubber hoses. Rubber hose STAUFF clamps have a smooth inner contact surface and filleted edges. Installing rubber hose STAUFF clamps will reduce potential hose chaffing in areas where hard line clamps were installed
FDM-TSIB-0432023-08-03. Service bulletin. This bulletin provides information on updating hydraulic hose clamping below the cab to match current production. Engineering recommends changing out the front STAUFF clamp using the following procedure. The second STAUFF clamp can be changed out using this procedure if desired.
FDM-SVC-0022021-07-07. Service bulletin. This bulletin provides instruction for replacing the water pump impeller due to corrosion. Oshkosh has received reports of non-working water pumps due to the pump impeller becoming corroded and seized, causing the pump not to spin. A new impeller made of an improved alloy was developed to eliminate corrosion issues.