Recall 21V566 affects 309 2021-2022 Spartan K2 vehicles for a fuel hose leak with fire risk. Repair is free at any franchised Spartan dealer.
Spartan is recalling 309 2021-2022 K2 RV chassis vehicles equipped with Cummins L9 diesel engines because a pressurized fuel hose between the fuel pump and remote Stage 2 fuel filter head can leak. Fuel leaking near an ignition source increases fire risk, and Spartan dealers will complete the recall repair free of charge.
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What's wrong?
The fuel hose on the 2021-2022 Spartan K2 chassis carries diesel fuel from the fuel pump to the remote Stage 2 fuel filter head. That filter head helps clean fuel before it continues through the engine system. The hose uses quick-connect fittings, so the connection and hose body both have to hold pressure without leaking.
In recall 21V566, the problem is the hose assembly between the fuel pump and the remote filter head. Shyft traced the defect to inadequate design and quality of that hose assembly. When the hose or its fittings do not hold fuel correctly under pressure, diesel fuel can leak near hot engine parts. Enough leaked fuel and heat can create smoke and a fire risk.
People in or around the vehicle can see smoke before heat builds enough to create a fire. Smoke near the chassis is the warning sign to treat seriously and keep the vehicle from being driven until it is inspected.
Who's affected?
Spans the 2021 and 2022 K2, both using the same fuel-carrying hose with quick-connect fittings.
| 2021 Spartan K2 | fuel system |
|---|---|
| 2022 Spartan K2 | fuel system |
| Units affected | 309 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
A fuel leak near an ignition source creates a fire risk. Smoke in or around the vehicle is a warning sign; if you see it, stop using the vehicle, move away from the area, and call the dealer. Repair is free at any franchised Spartan dealer.
What should I do?
- Check your VIN to confirm your 2021-2022 Spartan K2 is included in this recall.
- Contact a franchised Spartan dealer to schedule the free fuel-hose replacement that addresses the fuel leak between the fuel pump and remote fuel filter head.
- Bring the recall notice if you have it, and reference recall number 21V566 when you call.
- Avoid ignition sources near the chassis until the fuel hoses are replaced.
- Call Spartan customer service at 1-800-582-3454 with questions about the repair.
What happens at the repair
At the dealer, a Spartan technician replaces the fuel hoses between the fuel pump and the remote fuel filter head. The recall repair is free, with parts and labor covered. Shyft Group has a reimbursement plan for owners who already paid for this fuel hose repair before the recall notice. Keep repair invoices and payment records, then contact Shyft Group customer service to ask how to submit documented expenses for review.
| Reimbursement | Reimbursement available |
|---|
Timeline
| July 26, 2021 | NHTSA published the recall |
|---|---|
| September 3, 2021 | Dealer notification began |
| September 3, 2021 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| September 3, 2021 | Interim owner notification (was planned for this date) |
| September 14, 2021 | Owner notification mailed |
Frequently asked questions
What is recall 21V566?
Recall 21V566 covers 309 2021-2022 Spartan K2 RV chassis with Cummins L9 diesel engines, remote Stage 2 fuel filters, and pressurized hoses. The fuel hose between the fuel pump and remote fuel filter head can leak. Cummins will replace the fuel hoses for free.
What should I do if my 2021-2022 Spartan K2 is on this recall?
Check your VIN to confirm your specific chassis is included in recall 21V566. If it is, contact Spartan customer service at 1-800-582-3454 or a franchised Spartan service location to arrange the free Cummins fuel-hose replacement.
Is the recall repair free?
Yes. Federal recall law requires the recall repair at no cost to the owner. For recall 21V566, Cummins will replace the affected fuel hoses free of charge, and Spartan lists 21-18 as its internal recall number.
What is the safety risk in recall 21V566?
The safety risk is fire. In recall 21V566, a diesel fuel leak near an ignition source increases the risk of a fire. The repair path is to have the affected fuel hoses replaced for free once your VIN is confirmed.
When were owners notified about recall 21V566?
Owner notification letters were mailed on September 14, 2021. If you bought the Spartan K2 used or never received the letter, check your VIN and reference recall 21V566 when you contact Spartan or the service desk.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V566000 |
|---|---|
| Spartan customer service | 1-800-582-3454 |
| NHTSA recall # | 21V566 |
| NHTSA recall # (full) | 21V566000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (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 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →