Loose power connections can start fires in 301 E-One fire engines

E-One, the Ocala, Florida fire apparatus builder, has recalled 301 fire trucks because a loose positive power supply connection can make the wiring harness and busbar overheat. The National Highway Traffic Safety Administration recorded the recall on Oct. 6, 2026, and warns that an overheated busbar can increase the risk of a fire on the truck itself.

The vehicles are 2024 to 2026 Typhoon N, 2025 and 2026 Cyclone N and 2026 Cyclone II units. A department that stores one of these rigs in a station bay is parking a fire engine that could itself catch fire.

Typhoon N, Cyclone N and Cyclone II Rigs in NHTSA Campaign 26V652

NHTSA’s record for campaign 26V652000 lists 301 potentially affected vehicles, all under the manufacturer name E-ONE. The agency’s model records break the population into six model-year entries: Typhoon N for 2024, 2025 and 2026, Cyclone N for 2025 and 2026, and Cyclone II for 2026. The same figure of 301 appears on every record, which means it is a single campaign total rather than a count per model.

E-One has built its Cyclone and Typhoon custom chassis for years, and the Typhoon is the company’s rescue-pumper line. Fire Engineering, describing a 2020 delivery of six Typhoon pumpers to Cherokee County, Georgia, called E-ONE a subsidiary of REV Group and listed a Typhoon configuration with a 1,500-gallon-per-minute pump, a 1,030-gallon tank and a 6-kilowatt hydraulic generator for 110-volt equipment. E-One’s own lineup, as a fire-service reference wiki lists it, pairs the Cyclone and Typhoon custom chassis with the Titan aircraft rescue line and the electric Vector introduced in 2022; the 2026 recall touches the first two chassis families only.

A Loose Positive Supply and an Overheating Busbar

The defect description is short. NHTSA’s summary states that “the positive power supply may be loose, causing the wiring harness and busbar to overheat.” A busbar is the heavy metal strip that distributes battery power to a truck’s electrical loads, and on a fire apparatus those loads include warning lights, radios, pump controls and scene lighting running for long periods with the engine at idle.

The consequence line is one sentence: “An overheated busbar can increase the risk of a fire.” The filing lists no crash risk and no loss of pump function. The hazard it names is heat at a high-current connection, a failure that builds over hours of load and is hard to see from outside the cab.

A rig fire costs a department more than the truck. A pumper that burns in quarters can take the station bay and its neighbors with it, and a department running a small fleet can lose its front-line capacity until a spare is found. NHTSA’s record does not report any fires or injuries tied to the defect, and it does not say how E-One found the loose connection.

A Replacement Harness and Busbar, With Letters Due Oct. 20

Fire departments buy apparatus on long cycles, so a 2024 Typhoon N and a 2026 Cyclone II can sit in the same recall population even though they were built two years apart. The campaign is defined by the model and the year, and NHTSA lists the Typhoon N across model years 2024 through 2026, which makes a department’s own purchase records the quickest way to see whether a given truck falls inside it. A VIN search at nhtsa.gov/recalls settles the question for any individual truck.

E-One’s remedy, per NHTSA, is a replacement wiring harness and busbar at no cost to the owner. Owner notification letters are expected to be mailed Oct. 20, 2026, two weeks after the report date. Customers can reach E-One customer service at 1-352-237-1122 and cite recall ID 26V652000. NHTSA’s flags on the record show no instruction to park outside and no over-the-air update, so the agency has not told owners to keep the trucks out of buildings. Departments with a covered Typhoon or Cyclone have to schedule the work themselves once the letter arrives,.

The vehiclesafetyrecalls.com mirror of the NHTSA record carries the same Oct. 6 report date, 301-unit total and Oct. 20 mailing. An earlier E-One electrical-system campaign offers a point of comparison: a 2022 recall, 22V538, covered about 78 Cyclone, Typhoon, Quest and commercial fire trucks from 2019 to 2022 for a loose neutral screw connection in the plug-on neutral load center that could overheat it, with owner letters mailed Oct. 24, 2022.

The two recalls involve different components, a neutral connection in 2022 and a positive power supply in 2026, and the 2026 campaign is roughly four times the size. For the 301 trucks now covered, the open items are the Oct. 20 mailing and the date the replacement harness and busbar reach service centers, which NHTSA’s record does not give. Until then, E-One customer service and the recall ID are the only route to an appointment.

This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.

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