2021 Mci D4520 Recalls, Complaints & Specs
1 safety recall lists the 2021 Mci D4520. Check your own VIN below.
1 safety recall for the 2021 Mci D4520
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Fuel rail (fuel system)
Motor Coach Industries (MCI) is recalling certain 2019-2022 D4000 ISTV, D4500, 2021 D4000, D4520, 2020-2021 D4505, D4005, 2020-2022 D45CRTLE, and 2019-2021 J4500 vehicles equipped with certain Cummins X12 diesel engines. The fuel tubes between the fuel rail and the injectors for cylinders four, five, and six may fatigue and crack, which…
Remedy: On engines with 75 miles or less, Cummins dealers will install vibration isolators to the fuel tubes. Engines with more than 75 miles will receive new fuel tubes with vibration isolators. Repairs will be performed free…
No owner complaints on file
NHTSA has no owner complaints on file for the 2021 Mci D4520. For context, the average model year in NHTSA's database has dozens; a zero can mean a reliable vehicle, a rare one, or both.
Compare Mci D4520 model years
Recall and complaint counts for every Mci D4520 model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 2020 Mci D4520 | 1 | 0 |
| 2021 Mci D4520 | 1 | 0 |
| 2025 Mci D4520 | 1 | 0 |
Checking a specific 2021 Mci D4520
How do I know if my 2021 Mci D4520 has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 1 campaign currently lists the 2021 Mci D4520; your car may already have been repaired under it.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Mci dealer with your VIN and the NHTSA campaign number (for example 21V971000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Mci models
- J45003 complaints
- 102D32 complaints
- 102DL32 complaints
- D45002 complaints
- E45002 complaints
- D4500/102DL31 complaints
- D45051 complaints
- MC121 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.