NHTSA campaign 26V660 covers 2,592 Freightliner and Freightliner Custom Chassis vehicles whose remote fuel-filter hoses may separate, causing a leak or engine stall.
NHTSA campaign 26V660 covers 2,592 vehicles
The National Highway Traffic Safety Administration recall database lists campaign 26V660000 for 2,592 vehicles manufactured by Daimler Trucks North America. The agency received the manufacturer's report on October 7, 2026. The manufacturer identifies the associated campaign as F1042.
The recall spans Freightliner and FCCC products
The affected population includes certain 2022–2025 Freightliner Business Class M2 vehicles, 2023 Freightliner 108SD vehicles, 2022–2027 Freightliner Custom Chassis XCM and XCR vehicles, and 2024–2027 FCCC XCS and XBS vehicles. Model-year inclusion does not mean every vehicle in that range is recalled.
Certain Cummins L9 engines are involved
NHTSA's record says the recalled vehicles are equipped with certain Cummins L9 diesel engines. Owners and fleets should use the VIN-specific recall lookup or manufacturer notification rather than deciding eligibility from engine family, model badge or production year alone.
Remote fuel-filter hoses may separate
The reported defect is that remote fuel-filter hoses may separate. Separation can cause a fuel leak and an engine stall. A leak near an ignition source increases the risk of a fire, while an unexpected stall increases the risk of a crash.
The remedy is a free hose replacement
Cummins will replace the affected fuel hoses at no charge. The NHTSA record does not describe this as an over-the-air repair; the vehicle will need the physical remedy arranged through the authorized service process.
Owner letters are expected November 20
Owner notification letters are expected to be mailed November 20, 2026. A fleet does not need to wait for mail to check a VIN. Ownership records and addresses should be current so safety communications reach the responsible party.
Use the VIN to confirm recall status
Enter the full 17-character VIN in NHTSA's official recall lookup and follow the manufacturer's instructions. A make, model and model-year match is only a screening clue. The VIN record determines whether an individual vehicle is included and whether the remedy remains open.
Fleet managers should inventory possible units now
Compare the recall scope with asset, engine and VIN records. Mark potentially affected units for VIN verification, assign an owner for dealer or Cummins scheduling and retain the completion document. Include leased and recently acquired vehicles that may not yet appear in a familiar internal report.
Drivers should report fuel odors, wetness and stalling
A driver who observes a fuel odor, fresh wetness near fuel-system components, an unexplained fuel loss, warning indications or an engine stall should follow company emergency procedures and stop in a safe location when necessary. Avoid ignition sources and do not attempt an improvised roadside hose repair.
A pre-trip check does not replace the recall remedy
Routine inspection can identify obvious leakage or damage, but it cannot certify that a recalled hose is outside the defect population. A vehicle that looks normal can still have an open recall. Use inspection as a safety control while arranging the manufacturer-prescribed repair.
The current record has no park-outside instruction
The NHTSA data record does not carry a Park It or Park Outside warning for this campaign. That does not reduce the need to verify the VIN and complete the remedy. Follow any later manufacturer or agency instruction if the official campaign record changes.
Document decisions without inventing a clearance
Record the VIN lookup date, result, service appointment, any operating restriction from the manufacturer and repair completion. Do not mark a unit repaired based only on a phone call or absence of symptoms. Keep the final repair order tied to the asset and recall number.
Drivers can contact DTNA or Cummins
NHTSA lists Daimler Trucks North America customer service at 1-800-547-0712 and Cummins customer service at 1-800-286-6467. Callers should have the VIN and campaign references available. NHTSA's Vehicle Safety Hotline is also available through the official recall site.
This campaign is separate from other Freightliner recalls
Campaign 26V660 concerns remote fuel-filter hoses and a 2,592-vehicle population. It should not be confused with other Freightliner or FCCC campaigns involving lighting, brakes or different components. Track each open recall by its NHTSA campaign number and VIN result.
Primary-source note
This report is based on NHTSA's official recall API record for campaign 26V660000 as available October 20, 2026. CDL Truck Pro has preserved the agency's affected-vehicle count, model scope, defect, risk, remedy and expected notification date, and has not interpreted a model-year range as proof that every VIN is included.
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Official sources
Official NHTSA recall data for 2023 Freightliner Business Class M2NHTSA VIN recall lookupNHTSA recall data downloadsCDL Truck Pro provides educational information. Confirm licensing, safety, tax, and regulatory requirements through current official sources and qualified professionals.