What breaks most · 2009 to 2026 model years
Kawasaki Ninja ZX-6R problems by year
Owners have filed 64 safety complaints with NHTSA about the Kawasaki Ninja ZX-6R across model years 2009 to 2026. Three years stand out: 2025 for engine complaints, 2024 for engine complaints and 2013 for electrical system complaints. The quietest years are 2011, 2014 and 2015.
- Years to check closely: 2025, 2024, 2013
- Fewest complaints: 2011, 2014, 2015
- Complaints on file
- 642009 to 2026, all trims
- Worst year
- 202524 complaints
- Crashes reported
- 20 fires · 1 injuries · 2 deaths
- Typical failure mileage
- 6kMedian where owners gave mileage
- Recall campaigns
- 8Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 5 | 0 | 1 | Electrical system (3) | |
| 1 | 0 | 1 | Electrical system (1) | |
| 2 | 0 | 1 | Engine (1) | |
| 8 | 0 | 0 | Electrical system (6) | |
| 1 | 0 | 0 | Engine (1) | |
| 1 | 0 | 0 | Engine (1) | |
| 1 | 0 | 0 | Engine (1) | |
| 1 | 0 | 0 | Engine (1) | |
| 1 | 0 | 0 | Engine (1) | |
| 18 | 1 | 2 | Engine (10) | |
| 24 | 1 | 2 | Engine (20) | |
| 1 | 0 | 1 | Engine (1) |
What fails on the 2025 Kawasaki Ninja ZX-6R
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| EngineEngine gaskets and seals | 83% |
20 | 0 | Shop all engine parts, not filtered to this vehicle |
| Unknown or other | 17% |
4 | 0 | — |
| Engine and coolingRadiators, thermostats and cooling | 4% |
1 | 1 | Shop all engine and cooling parts, not filtered to this vehicle |
| Powertrain and transmissionTransmission parts | 4% |
1 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
-
Safety recall exists for engine stall risk but manufacturer has not provided parts or remedy for over two months. Motorcycle cannot be used.
-
#5 Bearing is out of torque putting engine at risk of seizure. Bike is stored and liquids drained pending recall and repair.
-
This motorcycle suffers from a rough start idle that can result in the vehicle stalling at low speeds or at times, or will stall when the vehicle comes to a stop.
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Kawasaki Ninja ZX-6R years have the most problems?
By NHTSA complaint volume, 2025, 2024, 2013 carry the most filings on the Kawasaki Ninja ZX-6R. The 2025 alone has 24 complaints, led by engine.
What is the most common Kawasaki Ninja ZX-6R problem?
On the 2025 model year, the most-reported component is engine with 20 complaints. The table above lists the top components for every year.
At what mileage do Kawasaki Ninja ZX-6R problems start?
The median mileage at failure across all Kawasaki Ninja ZX-6R complaints that include mileage is about 6,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.