Altec St600, model years 2022 to 2025. Filed by Altec Industries, Inc. and reported to NHTSA on 3 October 2025. 278 vehicles potentially affected.
What the notice says Altec Industries, Inc. (Altec) is recalling certain 2022-2025 ST600 vehicles equipped with auxiliary engines. The auxiliary engine electrical circuit, including the starter and voltage regulator, may become overloaded.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Altec's own number for this recall: CSN-3257. That is the number on the owner letter and on the dealer paperwork. 25V663 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 25V663 cover?
- Altec St600, model years 2022-2025.
- What is wrong with them?
- Altec Industries, Inc. (Altec) is recalling certain 2022-2025 ST600 vehicles equipped with auxiliary engines. The auxiliary engine electrical circuit, including the starter and voltage regulator, may become overloaded.
- What can happen if it is not put right?
- Overloaded circuits may overheat and increase the risk of fire.
- Is there a fix yet?
- Yes, and it is free. Owners will be advised to turn the battery disconnect off as part of the shutdown procedure. Altec will replace the electrical circuit, free of charge. Owner notification letters were mailed April 24, 2026. Owners may contact Altec customer service at 1-877-462-5832.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Altec calls this recall CSN-3257, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “Overloaded circuits may overheat and increase the risk of fire.”
affected
in the notice
caught
| Campaign | 25V663 |
|---|---|
| Filed by | Altec Industries, Inc. |
| System at fault | Electrical System:Wiring |
| Reported to NHTSA | 3 October 2025 |
| Model years | 2022-2025 |
| Vehicles named | ALTEC ST600 |
What the notice says today
The defect
Altec Industries, Inc. (Altec) is recalling certain 2022-2025 ST600 vehicles equipped with auxiliary engines. The auxiliary engine electrical circuit, including the starter and voltage regulator, may become overloaded.
The consequence
Overloaded circuits may overheat and increase the risk of fire.
The remedy
Owners will be advised to turn the battery disconnect off as part of the shutdown procedure. Altec will replace the electrical circuit, free of charge. Owner notification letters were mailed April 24, 2026. Owners may contact Altec customer service at 1-877-462-5832. Altec's number for this recall is CSN-3257.
What it said before
Nothing has changed while we have been watching. We last read the wording of this campaign on 17 September 2026, and it matched the copy we already held.
That copy hashes to 7bb7f32d3fcea251c87ddaf6c31a1d80…, so if it is ever edited the change is provable rather than a matter of memory.
This is one of 1,836 notices in the record whose component field names electrical system. Across that group the median wait before owners were written to was 41 days.
Last checked . No change has been recorded in the wording.
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 25V663, wording as read on 17 September 2026. https://carsmultiverse.com/recall/25v663/
The copy quoted above hashes to 7bb7f32d3fcea251c87ddaf6c31a1d80…. If the notice is reworded later, that fingerprint will not match, which is how a reader checks that the quotation was of the version we say it was.
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Altec notices we hold
- 26V463: 2024-2026 AT Series
- 26V457: 2013-2025 AP45A trucks
- 26V429: 2022-2026 Service Body
- 26V409: 2023-2025 Digger Derrick
- 26V384: 2024-2026 AC Series Crane
- 26V243: 2025-2026 AM Series Aerial Device
- 26V170: 2025 AC Series Crane and DT Series Digger Derrick
- 26V150: 2023-2026 Service Body, Aerial Device, Pressure Digger, Spray Truck, and Digger Derrick
All 183 Altec campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 25V663 on 23 August 2026, they were:
- Defect summary
121b7330 - Consequence
35869053 - Remedy
20642293
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 25V663 · how the whole register is watched
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Owners of these cars
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