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42mm Air Filter for 125cc–250cc GY6 ATV Dirt Bike Scooter
42mm Air Filter for 125cc–250cc GY6 ATV Dirt Bike Scooter
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Product Overview
This 42mm air filter is designed for mid-sized motorcycles, ATVs, quads, dirt bikes, pit bikes, scooters, and mopeds using compatible carburetor intake sizes.
With a 42mm / 1.66" inner diameter, this replacement air filter is suitable for many 125cc, 150cc, 200cc, and 250cc 2-stroke or 4-stroke engines, including compatible GY6 engines.
Installed on the carburetor intake side, the air filter helps block dust, dirt, and airborne particles before they enter the engine. Cleaner airflow helps support stable combustion, smoother throttle response, and longer carburetor service life.
Product Compatibility
| Engine / Vehicle Type | Compatible Application |
|---|---|
| 2-Stroke Engines | 125cc / 150cc / 200cc / 250cc |
| 4-Stroke Engines | 125cc / 150cc / 200cc / 250cc |
| GY6 Engines | Compatible GY6 scooter, ATV, and go-kart engines |
| Vehicle Type | ATV, Quad, Dirt Bike, Pit Bike, Motorcycle, Scooter, Moped |
Specifications
| Item | Details |
|---|---|
| Product Type | Air Filter |
| Inner Diameter | 42mm / 1.66" |
| Compatible Engine Range | 125cc–250cc |
| Compatible Engine Type | 2-Stroke / 4-Stroke / GY6 Engines |
| Installation Position | Carburetor intake side |
| Application | ATV, Quad, Dirt Bike, Pit Bike, Motorcycle, Scooter, Moped |
| Condition | 100% Brand New |
| Package Includes | 1 × Air Filter |
Key Features
- 42mm / 1.66" inner diameter fits compatible carburetor intake openings.
- Designed for many 125cc–250cc 2-stroke and 4-stroke engines.
- Suitable for compatible GY6 engines, ATVs, quads, dirt bikes, pit bikes, scooters, and mopeds.
- Helps filter dust and airborne impurities before they enter the carburetor.
- Supports cleaner airflow, stable engine operation, and longer carburetor service life.
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Fitment FAQ
Will this part fit my specific model and year?
This 42mm air filter may fit many 125cc, 150cc, 200cc, and 250cc ATV, quad, dirt bike, pit bike, motorcycle, scooter, and moped applications, including compatible GY6 engines. However, air filter fitment is mainly determined by the carburetor intake diameter, not only by the vehicle model, year, or engine size. Please measure your carburetor inlet and make sure it matches the 42mm / 1.66" inner diameter of this air filter before ordering.
Do I need to match the OEM part number?
For this type of universal-style replacement air filter, matching the OEM part number is helpful but usually not required. The most important fitment detail is whether your carburetor intake size matches 42mm and whether the filter shape and clamp style are similar to your original part. If your original air filter has a 42mm mounting opening and enough installation space, this part may be a suitable replacement. We still recommend comparing your old filter, carburetor inlet size, and product photos before purchase.
What models or situations does this part not fit?
This air filter will not fit carburetors with an intake diameter smaller or larger than 42mm. It may also not fit vehicles that require a factory air box, a special angled filter, a different mounting style, or limited clearance around the carburetor. It is not recommended for engines or carburetors that require 35mm, 38mm, 44mm, 58mm, or other air filter sizes. Please do not order based only on “125cc–250cc” or “GY6,” because different models may use different carburetor intake sizes.
What should I check before ordering?
Before ordering, please confirm that your carburetor intake diameter matches the 42mm / 1.66" inner diameter of this air filter. Also compare the filter shape, clamp position, mounting style, and available space around the carburetor with your original air filter. This part is commonly used on compatible 125cc–250cc 2-stroke and 4-stroke engines, but correct fitment depends on the actual carburetor size and installation layout. If you are unsure, measuring your old air filter or carburetor inlet before purchase is the best way to avoid ordering the wrong part.