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Twin Air Foam Air Filter - 154118

Twin Air Foam Air Filter - 154118

The Twin Air sponge air filter represents over 40 years of motorcycle innovation, specifically eng...

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Twin Air Air Filter KTM/HUSKY SX/SX-F/TC/FC 23-25, EXC/EXC-F/TE/FE 24-25

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eBayTwin Air Air Filter KTM/HUSKY SX/SX-F/TC/FC 23-25, EXC/EXC-F/TE/FE 24-25
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GhostBikes.comTwin Air Air Filter - Ktm/Husqvarna/Gas Gas Sx/Sxf/Tc/Fc23-24, Exc/Exc-F/Te/Fe 2024, Mc/Ec/Ex 2024
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Product Information

Full details

The Twin Air Foam Air Filter (154118) is designed for off-road enthusiasts and motorcycle racers who demand maximum engine performance in harsh, abrasive environments like sand and gravel. By utilizing a sophisticated dual-layer foam construction, this filter excels at maximizing airflow while trapping microscopic debris that would otherwise compromise engine health. While it provides industry-leading protection, users should note that the dual-layer system requires consistent cleaning and proper oiling to maintain its peak efficiency compared to disposable paper alternatives.

All features

Model Part Number154118
BrandTwin Air

Extended Product Information

FAQs

How often should I clean my Twin Air filter?

Frequency depends on riding conditions. In dusty or sandy terrain, the filter should be cleaned and re-oiled after every ride.

Can I use engine oil to coat the filter?

It is not recommended. You should use a dedicated foam air filter oil designed to remain tacky and trap fine particles effectively.

What happens if the foam gets torn?

If the foam is torn, it will no longer provide a complete seal. It must be replaced immediately to prevent dirt from entering the engine.

Does the filter come pre-oiled?

Most Twin Air filters come dry and require the application of air filter oil before the first use.

Is this filter compatible with all motorcycles?

No, this specific part number (154118) is application-specific. Verify your motorcycle model and year against the manufacturer fitment guide before purchase.

Troubleshooting

Difficulty seating the filter in the airbox

Ensure the filter cage is pushed fully into the foam and that the base seal is free of debris or grit.

Engine performance drop shortly after cleaning

Verify that the filter was allowed to dry completely before oiling and that you have not over-oiled the filter, which can cause restriction.

Pros and Cons

Pros

  • Significantly better protection against fine sand and dust
  • Maximizes airflow for improved power output
  • Highly durable construction with minimal seams
  • Reusable design provides long-term value
  • Engineered specifically for demanding off-road conditions

Cons

  • Requires manual cleaning and re-oiling
  • Initial installation requires careful seating
  • Performance is dependent on using the correct filter oil

Setup, Compatibility & Care

Proper installation is vital for a secure seal against the airbox housing. Ensure that the filter cage is correctly aligned with the filter foam before insertion. To maintain performance, use a dedicated foam filter cleaner to wash away trapped contaminants. Always allow the filter to dry completely before applying a high-quality foam filter oil. Work the oil thoroughly into the foam, ensuring full coverage, and squeeze out any excess before re-installing into your motorcycle. Check the airbox seal periodically to ensure no dirt has bypassed the filter element.

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