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Service bulletin KSB-180328 V2

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 id10187441
Published by NHTSA2021-02-25
Manufacturer's numberKSB-180328 V2
Manufacturer's date2021-02-23
NHTSA componentTRAILER HITCHES:FIFTH WHEEL ASSEMBLY; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE

NHTSA's summary

This is the revised repair instructions for KSB-180328. The information and instructions in a Keystone Service Bulletin (KSB) are intended to inform RV dealership Service Managers/Technicians of situations that may occur with some Recreational vehicles so dealership personnel can perform proper and efficient service. KSB’s are intended to be used by trained RV technicians with the knowledge, tools and equipment to do the job properly and safely, not “do-it-yourselfers”. Information is not presented as a repair guaranteed to be covered by warranty. Keystone’s P & P (Policy & Procedures) must be followed for any requested warranty work. Do not assume this repair is covered by warranty. Not every unit listed requires a repair. Please read through the instructions start to finish before attempting the repair. This process describes the safe and proper procedure to repair any unit which experiences a crack at the bottom corner of a slideout at the gooseneck of a 5th wheel, opening the side wall to repair broken tube welds and add reinforcement. This technical service bulletin explains how to perform the repair. Please note: A sublet will be required for aluminum welding if you do not have that capability.

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, Equipment and accessories, Trailer hitch

Vehicles listed
DUTCHMEN VOLTAGE2018 to 2021
KEYSTONE ALPINE2018 to 2021
KEYSTONE FUZION2018 to 2021
KEYSTONE MONTANA2018 to 2021
KEYSTONE RAPTOR2018 to 2021

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