Apico Air Filter - Suzuki RM125, RM250, RMZ250, RMZ450 - AFRM423

The Apico Air Filter is designed as a high-performance replacement for Suzuki RM125 (2004-2008), R...

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eBayApico Air Filter SUZUKI RM125 04-08, RM250 03-08, RM-Z250 07-18, RM-Z450 05-17
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GhostBikes.comApico Air Filter - Suzuki Rm125 2004-08, Rm250 2003-08, Rmz250 2007-18, Rmz450 2005-17
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Product Information

Full details

The Apico Air Filter (AFRM423) is a high-performance, dual-stage replacement filter specifically engineered for Suzuki RM and RMZ motocross and enduro motorcycles. Ideal for riders looking to maintain peak engine output and protection in demanding off-road conditions, this filter uses high-quality bonded foam to trap debris while maintaining airflow. It is important to note that this filter requires regular cleaning and proper oiling after every ride to sustain its performance, as it is a washable rather than a disposable unit.

All features

Model Part NumberAFRM423
BrandApico

Extended Product Information

FAQs

Can I use this filter on a Suzuki RMZ250 2019 model?

No, this specific part (AFRM423) is confirmed for RMZ250 models up to 2018.

Does the filter come pre-oiled?

No, the filter is supplied dry and must be treated with appropriate air filter oil before its first use.

How often should I clean the filter?

It is recommended to clean and re-oil the filter after every ride to maintain engine performance and longevity.

Can I use gasoline to clean this filter?

It is not recommended, as gasoline can degrade the adhesive used for the bonded foam and damage the foam structure itself. Use specialized foam filter cleaner.

Why is it important to use filter oil?

Foam filters are designed to work in conjunction with sticky filter oil. Without oil, the foam cannot effectively trap fine dust and dirt.

Troubleshooting

Difficulty seating the filter properly

Ensure the filter cage is correctly aligned with the filter opening and that no debris is trapped between the filter rim and the airbox housing.

Engine performance drop shortly after installation

Check if too much filter oil was applied. Excess oil can restrict airflow; remove the filter and gently squeeze out the surplus using a clean paper towel.

Pros and Cons

Pros

  • Significantly better filtration than standard single-layer filters
  • Maintains maximum engine horsepower by ensuring consistent airflow
  • Durable bonded construction withstands frequent cleaning cycles
  • Precise OEM fit for easy, stress-free installation

Cons

  • Requires manual cleaning and specific air filter oil after every ride
  • Not a 'drop-in and forget' part; demands consistent maintenance
  • Does not include pre-applied filter oil

Setup, Compatibility & Care

Compatibility includes the following Suzuki models: RM125 (2004-2008), RM250 (2003-2008), RMZ250 (2007-2018), and RMZ450 (2005-2017).

Installation Steps:

  1. Remove the airbox cover and carefully release the filter retaining cage.
  2. Clean the interior of the airbox with a damp rag to ensure no dirt enters the intake.
  3. Apply a light, even coat of high-quality foam filter oil to the Apico filter, massaging it in thoroughly, then squeeze out the excess.
  4. Install the filter onto the cage, ensuring the seal is flush against the airbox intake flange.

Maintenance:

Wash the filter using a dedicated foam filter cleaner or mild degreaser. Allow it to air dry completely before re-oiling. Never wring out the foam, as this can tear the bonded layers.

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