A properly maintained ATV or dirt bike air filter is the key to a healthy engine. Our air filter assembly for 40cc 4-stroke engines was designed especially for the less polluting and more efficient 4-stoke offroad machines.
The air filter regulates and cleans the air flow to the engine which in turn provides a cleaner ignition. Replace your dirty ATV/dirt bike air filter with a high quality replacement from Monster Scooter Parts and you’ll solve your sputtering problem in no time.
⚠ WARNING California Residents:
Proposition 65 Warning