KAX Toyota Prius Engine & Cabin Air Filter Kit CA10159 CF9846A — 2004–2009 Fit, Activated Charcoal Cabin Filter

KAX CA10159 CF9846A is a two-piece engine and cabin air filter kit designed to restore airflow to your Toyota Prius (2004–2009) and help keep the cabin smelling fresher.

This kit bundles an engine air filter and a cabin (HVAC) air filter engineered to match Toyota Prius fitment for model years 2004 through 2009. The filters use multi-layer media with coconut shell–activated charcoal in the cabin element to reduce odors while the engine filter focuses on trapping dust and road debris that can impact performance. The set is a convenient single-purchase replacement intended for routine service intervals and simple homeowner installation.

How do these filters improve everyday driving?

Replacing worn air filters restores designed airflow into the engine and HVAC system. Better airflow helps the engine breathe with less restriction and keeps the interior air fresher for passengers.

• Engine filter captures dirt, pollen and road grit to protect the intake system.
• Cabin filter uses activated charcoal to neutralize common odors and reduce particles.
• Fresh filters lower HVAC strain and maintain consistent cabin ventilation.

Will the KAX kit fit my Prius and is it easy to install?

The CA10159 CF9846A kit is matched to Toyota Prius model years 2004–2009 and designed for bolt‑in replacement. Both elements are shaped and sized for OEM-style fitment so you can replace them without modifications.

• OEM-compatible dimensions for direct swap into factory housings.
• Basic hand tools only; typical install time is around five minutes.
• Clear replacement intervals let you plan routine maintenance efficiently.

What materials and filtration features are included?

The engine element uses pleated media to trap particulates while the cabin element combines mechanical filtration with a charcoal layer to address odors. The multi-layer design balances particle capture with airflow preservation.

• Pleated engine media for high dust-holding capacity and even airflow.
• Coconut shell–activated charcoal in the cabin filter for odor adsorption.
• Durable frames and seals to reduce bypass and maintain proper fit.

How often should I replace both filters together?

KAX recommends replacing both the engine and cabin filters every 12 months or every 12,000 miles, whichever comes first. Replacing them as a set simplifies upkeep and helps avoid overlooked maintenance.

• 12 months / 12,000 miles suggested replacement interval.
• Buying the combo reduces repeat orders and service trips.
• Concurrent replacement ensures both engine and cabin systems perform optimally.

Who this kit is for: This KAX set is intended for Toyota Prius owners (2004–2009) who prefer an all-in-one maintenance purchase that addresses both engine protection and cabin comfort. It's suitable for DIYers who want quick, tool-light installs and drivers aiming for consistent ventilation and intake performance without visiting a shop. Choose this kit if you value a straightforward replacement solution with odor-control in the passenger compartment and dependable particulate filtration for the engine.