Campaign 26V-071

Chassis engine may start unintentionally due to a missing diode in the Altec power distribution module

Defect summary

Altec Industries, Inc. (Altec) is recalling certain 2021-2025 Digger Derrick and 2021-2025 AM Series Aerial Device vehicles. The chassis engine may start unintentionally due to a missing diode in the Altec power distribution module.

Consequence

An engine that starts unexpectedly increases the risk of injury to anyone near the engine compartment during maintenance operations.

Remedy

Altec will provide instructions to inspect the power distribution module for a diode, and provide a repair kit as necessary, free of charge. Owner notification letters were mailed March 27, 2026. Owners may contact Altec customer service at 1-877-462-5832. Altec's number for this recall is CSN-3281.

Source: NHTSA ODI recalls file, campaign 26V071000. Text as published by NHTSA.

Vehicles covered

2 product lines are covered

Owner complaints filed with NHTSA about electrical system on these vehicles: 0, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 26V-071
Make	Model	Model years	Complaints on this component
Altec	AM Series Aerial Device	2021 to 2025	0
Altec	Digger Derrick	2021 to 2025	0

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.

Investigation

No NHTSA investigation is linked to this recall

Most recalls are started by the manufacturer. This one lists "Manufacturer" as its origin.

Before the recall

5 service bulletins on this component came first

Distinct manufacturer communications on the same component group, make, model and model year in the 24 months before the report date.

Source: NHTSA manufacturer communications file.

Service bulletins

26V-617 Sep 24, 2026
Improper wiring may prevent the boom stow auto-neutral feature from engaging, which can allow the truck to be driven while the boom is still elevated
26V-457 Jul 16, 2026
Boom stow switch wire in the cargo storage area may become damaged, which can result in a short circuit, causing the wire to overheat
26V-429 Jul 2, 2026
Inverter output AC wiring may be routed too tightly in the electrical receptacle enclosure and become damaged, possibly resulting in a short circuit
25V-890 Dec 18, 2025
Electronic taillight module harness may have inadequate circuit protection
25V-810 Nov 21, 2025
Lower emergency stop may not function when the upper control is selected
25V-663 Oct 3, 2025
Auxiliary engine electrical circuit, including the starter and voltage regulator, may become overloaded