Recall 24V736 covers 620 2025 Western Star vehicles for fuel pump barrel fractures. Repair is free at a franchised Western Star dealer.
Western Star is recalling 620 2025 49X, Cascadia, Xcm, and Xcp vehicles under recall 24V736 because certain Cummins fuel pump barrels can fracture, leak fuel, and stall the engine. An engine stall raises crash risk; Western Star dealers will complete the free repair.
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What's wrong?
The Cummins X15 fuel pump on these 2025 49X, Cascadia, Xcm, and Xcp vehicles sends diesel fuel to the engine at the pressure the engine control system requests. The pump has internal barrels, metal sleeves inside the pump that help build and hold that pressure. When the pump holds pressure, the engine gets a steady fuel supply.
The problem is in how certain pump barrels were finished during manufacturing. The heat treatment process left an abnormal softer surface layer, and the shot peening step, a surface treatment meant to help metal resist cracking, did not fully protect the part. That leaves the barrel with lower fatigue strength. Over use, the barrel can fracture, diesel fuel can leak, and the engine can stall.
Before the failure, the driver can notice reduced performance or a warning lamp after fuel pressure drops below the requested value. People in or around the vehicle can also see or smell diesel fuel.
Who's affected?
Covers four vehicle lines with the same Cummins X15 fuel pump option.
| 2025 Western Star 49X | fuel system |
|---|---|
| 2025 Freightliner Cascadia | fuel system |
| 2025 Fccc Xcm | fuel system |
| 2025 Fccc Xcp | fuel system |
| Units affected | 620 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
An engine stall increases the risk of a crash. Reduced performance, a warning lamp, or diesel smell can signal fuel pressure trouble. Treat those signs as a reason to get off the road when safe and contact the dealer before continuing. Repair is free at any franchised Western Star dealer.
What should I do?
- Check your VIN to confirm your 2025 Western Star 49X, Cascadia, Xcm, or Xcp is included in this recall.
- Contact a franchised Western Star dealer to schedule the free fuel-pump-barrel replacement that fixes the fuel leak and engine-stall risk.
- Bring the recall notice if you have it, and reference recall number 24V736 and DTNA recall F1010 when you call.
- Drive cautiously until the repair is complete, and pull over safely if the engine stalls.
What happens at the repair
At the dealer, a Western Star technician replaces the Cummins fuel pump barrels covered by recall 24V736. Parts and labor are free under the recall. The repair addresses the fuel pump barrels that can fracture and leak fuel, which can lead to an engine stall. If you already paid out of pocket for a fuel pump barrel repair tied to this issue, the manufacturer's standard reimbursement plan covers documented expenses. Bring repair paperwork and payment records to the service desk so they can explain the claim process.
| Reimbursement | Reimbursement available |
|---|
Timeline
| October 1, 2024 | NHTSA published the recall |
|---|---|
| October 16, 2024 | Dealer notification began |
| October 16, 2024 | Dealer notification ended |
| November 14, 2024 | Owner notification mailed |
| November 22, 2024 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| November 22, 2024 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 24V736?
Recall 24V736 covers 620 2025 Western Star 49X, Freightliner Cascadia, Fccc Xcm, and Fccc Xcp vehicles with certain Cummins fuel pumps. The fuel pump barrels can fracture, causing a fuel leak and engine stall. An engine stall increases crash risk.
What should I do if my 2025 Western Star 49X, 2025 Freightliner Cascadia, 2025 Fccc Xcm, or 2025 Fccc Xcp is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 24V736. If it is, contact a franchised Western Star dealer or DTNA Customer Service at 1-800-745-8000 and reference DTNA recall F1010. Cummins will replace the fuel pump barrels for free.
Is the recall repair free?
Yes. Federal recall law requires the recall repair at no cost, and Cummins will replace the affected fuel pump barrels free of charge. The repair applies to included vehicles regardless of where the vehicle was purchased.
What is the safety risk?
The safety risk is an engine stall. In recall 24V736, the Cummins fuel pump barrels can fracture and cause a fuel leak, which can lead to an engine stall. NHTSA states that an engine stall increases the risk of a crash.
When were owners notified about recall 24V736?
Owner notification letters were mailed November 14, 2024. If you bought the vehicle used or never received the letter, check your VIN to confirm whether your specific 2025 vehicle is included, then contact the dealer with recall number 24V736 or DTNA recall F1010.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V736000 |
|---|---|
| Western Star customer service | 1-800-745-8000 |
| NHTSA recall # | 24V736 |
| NHTSA recall # (full) | 24V736000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Document (PDF) (PDF)
- Download Owner Notice (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 19, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →