Airaid Replacement Air Filter - Dry / Black Media - 721-243

The Airaid 721-243 Replacement Air Filter is a premium dry/black media performance air filter engineered to deliver high airflow to your engine without the mess of oil-based filtration. Designed as a universal-fit replacement element, the 721-243 is built for enthusiasts who want a cleaner, more maintenance-friendly upgrade over a standard paper filter. Whether you're refreshing a worn filter element in an existing Airaid intake system or sourcing a compatible universal filter, the 721-243 is a go-to choice in the Airaid performance air filter lineup.

Key Features & Benefits

• Dry/Black Media Construction: Airaid's SynthaFlow dry filter technology means no oiling is required — maintenance is simpler, and there's zero risk of oil contamination on your mass airflow sensor, a common concern with oiled filters.
• High Airflow Design: The AIRAID Premium Filter is specifically engineered to help improve airflow to the engine, which Airaid describes as supporting increased horsepower and torque potential.
• Reusable & Washable: Unlike disposable OEM paper filters, the 721-243 is designed to be cleaned and reused, making it a long-term investment rather than a recurring expense.
• Lifetime Warranty: Airaid backs this filter with a No Hassle Lifetime Warranty, giving buyers confidence in the product's long-term durability.
• Made in the USA: Manufactured domestically, supporting quality control standards Airaid is known for in the performance air intake market.
• Universal Application: Listed as a universal air filter, this element is versatile enough for use in a range of intake setups where the dimensions are compatible — ideal for custom builds or as a direct replacement within applicable Airaid intake kits.

Specifications

• Brand: Airaid
• Part Number: 721-243
• SKU: AIR721-243
• Filter Media: Dry / Black (SynthaFlow-style, no oil required)
• Filter Type: Universal Replacement Air Filter
• Warranty: No Hassle Lifetime Warranty
• Country of Manufacture: USA

Fitment

The Airaid 721-243 is classified as a universal air filter, meaning it is not vehicle-specific but is instead sized to fit a range of intake systems and custom applications where the filter dimensions are compatible. It is commonly used as a replacement element within Airaid intake kits that call for the 721-243 filter, as well as in custom cold air intake or short ram intake setups. Because this is a universal part, buyers should verify the inlet diameter and overall filter dimensions match their existing intake tube or housing before ordering. If you're unsure whether this filter fits your specific Airaid intake system or custom setup, the fitment experts at ThreePiece.us can help confirm compatibility before you buy.

This filter is not a direct OEM drop-in for a factory airbox unless your factory airbox dimensions happen to match — it is intended for performance intake applications.

Why Buy from ThreePiece.us

• Free Shipping on Every Order: The Airaid 721-243 ships free — no minimum order threshold, no hidden freight charges.
• Affirm Financing Available: Break your purchase into manageable payments with Affirm financing at checkout, making it easy to get the performance parts you need today.
• Expert Fitment Support: Not sure if the 721-243 is the right filter for your intake setup? Our team is here to help you confirm compatibility and make the right call before you order.
• Trusted Performance Parts Source: ThreePiece.us stocks Airaid filters alongside a full catalog of performance intake components, so you can build out your setup in one place.

Frequently Asked Questions

Does the Airaid 721-243 require oiling?

No. The 721-243 uses Airaid's dry/black filter media, which requires no oil at all. This makes maintenance straightforward — simply clean the filter per Airaid's instructions and reinstall. There's no risk of over-oiling or MAF sensor contamination that can sometimes occur with oiled filter types.

Is this filter compatible with my specific vehicle?

The 721-243 is a universal air filter, not a vehicle-specific fitment. It's designed to serve as a replacement element for compatible Airaid intake systems or as a filter in custom intake builds. You'll need to verify that your intake tube's inlet diameter and available filter space match the 721-243's dimensions. Contact ThreePiece.us if you need help confirming fit.

Does the Airaid 721-243 come with a warranty?

Yes. Airaid covers the 721-243 with their No Hassle Lifetime Warranty, so you're protected against defects for the life of the filter.

Is the 721-243 a one-time purchase or do I need to replace it regularly?

This is a reusable, washable performance filter. Unlike OEM paper filters that must be discarded and replaced, the Airaid 721-243 is designed to be cleaned and reinstalled, making it a cost-effective long-term solution for performance air filtration.