Recall 17V839 affects 34 2015-2017 Mv Agusta F4 motorcycles for front brake master cylinder failure. Repair is free at any franchised Mv Agusta dealer.
Mv Agusta is recalling 34 2015-2017 F4 motorcycles because the Brembo front brake master cylinder can fail. If it fails, the rider can lose front braking ability, which increases the risk of a crash; Mv Agusta dealers will complete the repair free of charge.
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What's wrong?
The front brake master cylinder on affected 2015-2017 Mv Agusta F4 motorcycles turns front brake lever force into hydraulic pressure. That pressure pushes brake fluid through the brake system so the front calipers clamp the rotors. The master cylinder depends on a small internal piston to move smoothly and hold pressure each time the rider brakes.
On these motorcycles, the piston inside certain Brembo front brake master cylinders is made from PPS, a synthetic plastic material. The material strength is uneven, and the injection process left an unfavorable pattern of small voids in the piston. Under stress from track use, repeated ABS activity, or a fall, the piston can crack and the front brake master cylinder can lose its ability to build pressure.
The official warning information says the failure can happen without any warning sign. Mv Agusta also says a significant loss of front brake effectiveness is the early symptom to watch for.
Who's affected?
Spans the 2015, 2016, and 2017 model years, all tied to the same hydraulic brake system.
| 2015 Mv Agusta F4 | hydraulic brake system |
|---|---|
| 2017 Mv Agusta F4 | hydraulic brake system |
| 2016 Mv Agusta F4 | hydraulic brake system |
| Units affected | 34 |
| 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 motorcycle is included.
What's the safety risk?
Front brake master cylinder failure can reduce or remove front braking ability, which increases the risk of a crash. There is no reliable warning sign before failure, though a sudden drop in brake effectiveness needs immediate attention. Stop riding if braking feels weak and call the dealer. Repair is free at any franchised Mv Agusta dealer.
What should I do?
- Check your VIN to confirm your 2015-2017 Mv Agusta F4 is included in this recall.
- Contact your nearest franchised Mv Agusta dealer to schedule the free front brake master cylinder piston replacement that addresses the front brake failure risk.
- Bring the recall notice if Mv Agusta mailed one. If not, reference recall number 17V839 when you call.
- Ride cautiously until the repair is complete. Leave extra following distance and use extra care with front braking.
What happens at the repair
At the dealer, an Mv Agusta technician replaces the front brake master cylinder piston covered by recall 17V839. The replacement parts and labor are free under the recall, and the repair is available now. Mv Agusta's reimbursement note points to its warranty procedure rather than a separate recall reimbursement program. If you already paid for a related front brake master cylinder repair, ask the service desk how the warranty procedure applies to your prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| December 22, 2017 | NHTSA published the recall |
|---|---|
| January 19, 2018 | Owner notification mailed |
| January 29, 2018 | Dealer notification began |
| January 29, 2018 | Dealer notification ended |
| January 30, 2018 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 17V839?
Recall 17V839 covers 34 2015-2017 Mv Agusta F4 motorcycles with Brembo front brake master cylinders that can fail. If the front brake master cylinder fails, loss of front braking ability can increase crash risk. Mv Agusta dealers replace the front brake master cylinder piston for free.
What should I do if my 2015-2017 Mv Agusta F4 is on this recall?
Check your VIN to confirm your specific motorcycle is included in recall 17V839. If it is, contact a franchised Mv Agusta dealer to schedule the front brake master cylinder piston replacement. Reference recall number 17V839 when you call. The repair is free.
Is the Mv Agusta F4 recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost, and Mv Agusta provides the front brake master cylinder piston replacement free of charge at a franchised Mv Agusta dealer.
What is the safety risk in recall 17V839?
The safety risk is loss of front braking ability. In NHTSA campaign 17V839, the front brake master cylinder can fail, which can increase the risk of a crash. Confirm your VIN, then arrange the free dealer repair if your motorcycle is included.
When did the recall repair become available?
The recall repair became available on January 19, 2018. Mv Agusta dealers replace the front brake master cylinder piston free of charge. If you bought the motorcycle used or never received a letter, check your VIN before calling the dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/17V839000 |
|---|---|
| Mv Agusta customer service | 1-215-781-1770 |
| NHTSA recall # | 17V839 |
| NHTSA recall # (full) | 17V839000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →