NHTSA·Commercial vehicles·December 23, 2025

Altec recalls 2022–2023 AA55, AM55, AN46 and AN55 vehicles over missing boom hose check valve

A check valve that keeps oil in the boom hoses may not have been installed, which can let a vacuum form and reduce the upper boom's insulation, so electricity could reach the operator or others touching the vehicle, risking injury and death.

What to do

Altec will give owners instructions to inspect their vehicles for the check valve, and Altec service will install it as necessary, free of charge. Owners may call Altec customer service at 1-877-462-5832 and cite recall number CSN 3272.

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Recall details

Product
Altec An46, Am55, Aa55 and 1 more 2022–2023
Hazard
Reduced insulation can conduct electricity to the operator or others touching the vehicle, increasing the risk of injury and death.
Units
18 vehicles
Owner notification
February 10, 2026
Reported to NHTSA
December 23, 2025
Identifiers
  • NHTSA campaign number: 25V909000
  • Manufacturer campaign number: CSN 3272
  • Model years: 2022–2023

The headline, summary and steps above are written in plain English from the official notice below. Identifiers are copied exactly as the agency published them. Always check the official notice before you act.

Official notice

The notice's own wording from NHTSA.

Component
EQUIPMENT:MECHANICAL:BOOM/CRANE/LADDER:MOTOR/HYDRAULIC PUMP
Defect
Altec Industries, Inc.(Altec) is recalling certain 2022-2023 AA55, 2023 AM55, AN46, and AN55 vehicles. A check valve that retains oil in the boom hoses may not have been installed, allowing a vacuum to form and reducing the upper boom’s insulation.
Consequence
Reduced insulation can conduct electricity to the operator or others touching the vehicle, increasing the risk of injury and death.
Corrective action
Altec will provide instructions to owners on how to inspect their vehicles for the check valve. Altec service will install the check valve as necessary, free of charge. Owner notification letters were mailed February 10, 2026. Owners may contact Altec customer service at 1-877-462-5832. Altec's number for this recall is CSN 3272.

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