Recall
Sutphen recalls 410 fire trucks as Cummins L9 fuel hoses may leak
The recall covers certain 2021 Sutphen fire trucks with Cummins L9 diesel engines; Cummins dealers will replace the fuel hoses free of charge, and owner letters are expected to be mailed Dec. 7, 2026.
Checked against 4 sources (4 primary)Records from nhtsa.gov · How we report
Published · 2 min read
Key numbers
Units potentially affected as filed with NHTSA
- Fire risk
- Model year
- 2021
- NHTSA campaign
- 26V-661
Jump to
Is your car affected?
For open (unrepaired) recalls on your car, enter its 17-character VIN in NHTSA's lookup by VIN.
Recall at a glance
- Vehicles
- Certain 2021 Sutphen fire trucks with Cummins L9 diesel engines, part number D563027BX03
- Potentially affected
- 410 trucks
- Risk
- Remote fuel filter hoses may separate from the fitting, causing a fuel leak (fire risk near an ignition source) and an engine stall (crash risk)
- Remedy
- Cummins dealers will replace the fuel hoses, free of charge
- Recall numbers
- NHTSA 26V-661 (26V661000); Cummins C7311
- Report received by NHTSA
- Oct. 8, 2026
- Owner letters
- Expected to be mailed Dec. 7, 2026
Source for every row: source 1.
What to do
Cummins dealers will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed Dec. 7, 2026.
NHTSA's record for 26V-661 does not carry a park-it or park-outside advisory.
When calling Cummins or Sutphen about the repair, give the recall numbers: NHTSA 26V-661 and Cummins C7311.
What happened
Sutphen Corporation is recalling certain 2021 fire trucks equipped with Cummins L9 diesel engines with part number D563027BX03, under NHTSA campaign 26V-661. NHTSA received the report on Oct. 8, 2026, and its record lists 410 trucks as potentially affected.
The remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall. According to NHTSA's record, a fuel leak in the presence of an ignition source increases the risk of a fire, and an engine stall increases the risk of a crash.
The same hose problem appears in two other recalls. Daimler Trucks North America (DTNA) is recalling certain 2022-2025 Freightliner Business Class M2, 2022-2027 FCCC XCM, FCCC XCR, 2023 Freightliner 108SD, 2024-2027 FCCC XCS and FCCC XBS vehicles with certain Cummins L9 diesel engines. That recall is campaign 26V-660. NHTSA received that report on Oct. 7, 2026, and the campaign lists 2,592 potentially affected vehicles.
Tiffin Motorhomes is recalling certain 2022-2025 Allegro Bus and Phaeton motorhomes with certain L9 diesel engines, part number D563027BX03, under campaign 26V-662. NHTSA received that report on Oct. 8, 2026, and the campaign lists 177 potentially affected motorhomes.
NHTSA's recall list for the 2021 Sutphen fire truck also shows an earlier fuel hose recall, 21V-581, received July 29, 2021. That campaign covered certain 2020-2021 Sutphen fire trucks, where a fuel leak may occur from the hoses between the fuel pump and remote fuel filter head.
Is my car affected?
Recall 26V-661 covers certain 2021 Sutphen fire trucks equipped with Cummins L9 diesel engines with part number D563027BX03. Our free recall check at /vin-check/ lists NHTSA recalls by make, model and year.
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.
New NHTSA vehicle recalls: Recall tracker
This story was prepared with AI assistance and fact-checked by our AI review process against its sources, then reviewed by Paul Grice before publication. Our AI policy.
Sources
All 4 are primary sources, accessed 2026-10-20.
- NHTSA recall 26V661000 (Sutphen Corporation, Cummins L9 remote fuel filter hoses), recall details by campaign.
- NHTSA recalls by vehicle: 2021 Sutphen fire truck.
- NHTSA recall 26V660000 (Daimler Trucks North America, Cummins L9 remote fuel filter hoses), recall details by campaign.
- NHTSA recall 26V662000 (Tiffin, Cummins L9 remote fuel filter hoses), recall details by campaign.