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Sutphen Fire Truck Recall 26V661: Fuel Hose May Detach, Causing Leak and Fire Risk

NHTSA campaign 26V661, reported October 8, 2026, 410 vehicles potentially affected.

What this recall means for you

Certain 2021 fire trucks with Cummins L9 diesel engines may have remote fuel filter hoses that can separate from the fitting. This can cause a fuel leak and an engine stall.

A fuel leak near an ignition source can increase the risk of a fire, and an sudden engine stall can increase the risk of a crash. Owners should take this recall seriously and arrange the repair promptly.

The fuel hoses will be replaced free of charge by Cummins dealers. Owner notification letters are expected to be mailed December 7, 2026. You can contact Cummins customer service at 1-800-286-6467 or Sutphen customer service at 1-614-889-1005, and reference Cummins recall number C7311. You can also check your vehicle identification number for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 26V661Sutphen Corporation
Component
FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
Problem
Sutphen Corporation (Sutphen) is recalling certain 2021 fire trucks equipped with Cummins L9 diesel engines with part number D563027BX03. The remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall.
Risk
A fuel leak in the presence of an ignition source increases the risk of a fire. An engine stall increases the risk of a crash.
Remedy
Cummins dealers will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed December 7, 2026. Owners may contact Cummins customer service at 1-800-286-6467 or Sutphen's customer service at 1-614-889-1005. Cummins number for this recall is C7311.

Affected vehicles

Sutphen Fire Truck2021