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The K&N Replacement Motorcycle Air Filter (TB-4024) is engineered to increase airflow for improved horsepower, throttle response, and acceleration while providing increased engine protection. Built with premium oiled cotton gauze, this washable and reusable air filter is designed for long-lasting performance, a precision OEM-style fit, and durable construction to keep your motorcycle performing ride after ride.
| Height [mm] | 121 |
| Filter type | Long-life Filter |
| Air Filter Shape | Round |
| Height | 4.75 in (121 mm) |
| Package Contents | 1 Air Filter |
| Package Quantity | 1 |
| Washable | Yes |
| Air Filter Material | Cotton Gauze |
| Product Style | Unique Air Filters |
| Weight | 0.6 lb (0.3 kg) |
| Filter Re-Oiling Amount | 0.61 oz (18 ml) |
| Product Box Height | 7.25 in (184 mm) |
| Product Box Length | 4.63 in (117 mm) |
| Product Box Width | 4.63 in (117 mm) |
| Manufacturer Warranty | No-Hassle Lifetime Limited |
| Vehicle (All Models) | Years |
|---|---|
| Triumph Scrambler 400 X 395 | 2024 |
| Triumph Scrambler 400 X 398 | 2025–2026 |
| Triumph Scrambler 400 XC 398 | 2025–2026 |
| Triumph Speed 400 398 | 2024–2026 |
| Triumph Tracker 400 398 | 2026 |
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