WanQin Air Filter Kit for Stihl TS410 TS420 TS480 TS500i — 5-Pack with Pre-Cleaners, OEM 4238 141 0300 Fit

WanQin 5-pack air filter kit replaces OEM 4238 141 0300 for Stihl TS410/TS420/TS480/TS500i saws and includes five pre-cleaners for extended service life.

If you use a Stihl concrete cutoff saw, consistent airflow and reliable filtration are essential for steady performance and long engine life. This WanQin kit contains five replacement main air filters plus five pre-cleaners designed to trap large debris before it reaches the primary element. The parts are engineered to fit the same mounting points and sealing surfaces as the original equipment, making swaps straightforward for routine maintenance on compatible Stihl models.

Will these filters fit my Stihl TS410 or TS420 saw?

These WanQin filters are made to match the dimensional and sealing specs of the original Stihl part numbers listed. They are compatible with TS410, TS420, TS410Z, TS420Z, TS480, TS480i and TS500i models that use the OEM 4238 141 0300 family of parts. Always compare the part number stamped on your existing filter or consult your saw's manual before ordering.

• Replaces OEM numbers: 4238 141 0300, 42381410300B, and related variants
• Fits popular cutoff saws: TS410/TS420/TS480/TS500i series
• Check your saw's existing part number for exact match

How do the included pre-cleaners improve maintenance?

The foam pre-cleaners provided with each main filter capture larger dust and grit before it reaches the paper element, reducing clogging and helping preserve airflow. Using the pre-cleaner extends service intervals and makes the primary filter easier to clean or replace. They’re quick to fit over the main element and inexpensive to swap at routine intervals.

• Traps coarse particles to reduce main filter loading
• Simple slip-on installation for fast maintenance
• Five sets included to match the five primary filters in the pack

What performance differences can I expect after replacing my filter?

Fresh filters restore designed airflow and help the engine breathe clean air, which supports consistent power delivery under load. While results depend on overall engine condition and fuel system health, replacing a clogged filter typically reduces strain on the carburetor and intake. Use this kit as part of scheduled servicing to maintain saw responsiveness during heavy cutting jobs.

• Restores airflow closer to OEM levels when clean
• Helps maintain steady throttle response under load
• Reduces abrasive dust entering the engine compartment

How should I install and care for these replacement filters?

Installation follows the same steps as the factory element: remove the cover, take out the old filter, inspect the housing for debris, and fit the WanQin filter with the pre-cleaner over it. Replace the filter if it shows tears, heavy oil contamination, or permanent deformation. Clean or replace the pre-cleaner more often in dusty conditions to protect the main element.

• Inspect housing and sealing surfaces for damage before install
• Replace pre-cleaner frequently in high-dust environments
• Discard and replace filter at the first sign of damage or heavy clogging

Who this kit is for: Contractors, rental yards, and serious DIYers who operate Stihl TS series concrete saws and want a cost-effective supply of OEM-compatible air filters and pre-cleaners. It’s suited for routine maintenance schedules where multiple filters are consumed over a season, providing quick replacements that fit the original mounting and sealing design. Before purchase, verify your saw’s part number to ensure compatibility with your model.