Sutphen recall 26V-661: Fuel Filter Hoses May Disconnect and Leak Fuel
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.
Campaign facts
- NHTSA campaign
- 26V661000 (26V-661)
- Manufacturer number
- C7311
- Filed by
- Sutphen Corporation
- Report received
- October 8, 2026
- Component
- Fuel system, diesel:delivery:hoses, lines/piping, and fittings
- Vehicles potentially affected
- 410
- Model years
- 2021
- Built between
- December 7, 2020 and April 10, 2026
- Recall initiated by
- The manufacturer
What is wrong
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.
The 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.
Why fuel system defects matter: Fuel leaks are a fire risk; an engine stall from fuel starvation is a crash risk, particularly at speed.
The 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.
About the fuel system
Fuel system campaigns cover the tank, pump, lines, injectors, filler pipe and the fittings that keep fuel sealed in.
Vehicles covered by campaign 26V-661
- Sutphen Fire Truck 2021
What to do
- Enter your VIN in NHTSA’s lookup (below) to confirm that your vehicle is included and that the repair has not already been done.
- Call a dealer for the brand and book the repair. Quote NHTSA campaign 26V-661 and the manufacturer’s number C7311.
- If you smell fuel or see a leak, do not drive the vehicle — park it outside, away from buildings, and call the dealer.
- Safety recall repairs are carried out free of charge by the manufacturer’s dealers. If you already paid for this repair yourself, ask the manufacturer about reimbursement and keep your receipt.
Check by VIN
A campaign rarely covers every vehicle of a model year. Enter your 17-character VIN to find the recall campaigns filed for your make, model and model year. The VIN is on the driver’s side of the dashboard (visible through the windshield), on the door-jamb label, and on your registration and insurance documents.
Is a recall still open on your vehicle? Only NHTSA’s official VIN check can say whether a campaign applies to your exact vehicle and whether the repair has already been done.
Your VIN is decoded with NHTSA’s public vPIC service to identify the make, model and year. It is not stored and is not added to any page address.
The official record
This page reproduces the campaign as filed with NHTSA. The NHTSA record is authoritative — if anything here differs, follow the agency.
Open campaign 26V-661 on NHTSA.gov