Denso Engine Air Filter 143-3003 12.5" x 7.6" x 1.5" — Direct-Fit OEM-Style Filtration

The Denso 143-3003 is a direct-fit replacement engine air filter measuring 12.5" x 7.6" x 1.5", designed to trap airborne particles and maintain proper airflow for combustion systems.

This Denso air filter provides a factory-style fit and filtration media sized for compatible vehicle applications. Built with the brand's standard construction quality, the component arrives in a compact package that keeps the element protected until installation. Use it when the old filter shows dirt buildup or as part of scheduled maintenance to help maintain engine breathing and filter performance.

What are the physical dimensions and package details?

The filter element measures 12.5 inches long, 7.6 inches wide and 1.5 inches thick—typical for many cabin/engine intake housings that accept a flat rectangular media. The shipping package is compact and lightweight for easy handling and storage.

• Filter size: 12.5" x 7.6" x 1.5" (length x width x depth)
• Package length: 19.812 cm
• Package height: 4.826 cm
• Package width: 32.766 cm
• Package weight: 0.204 kg

How does the Denso 143-3003 fit and install?

This Denso unit is manufactured to match original equipment dimensions so it slides into compatible housings without trimming. Installation is straightforward: remove the housing cover, swap the old element for the new one, and reseal the cover to the manufacturer's torque or latch specifications.

• Direct-fit dimensions for quick replacement
• No special tools required for most housings
• Install during routine service intervals or when visibly dirty
• Re-seat housing gaskets to prevent unfiltered air bypass

What performance outcomes should I expect after installing this filter?

Replacing a clogged or worn air filter with the Denso 143-3003 helps restore designed airflow and protects downstream components by trapping dust and debris. While exact improvements vary with vehicle condition, fresh filtration supports consistent engine operation and can help maintain fuel system efficiency.

• Restores airflow closer to OEM specifications
• Cleans incoming air to reduce particulate intake
• Supports steady engine response and idle quality
• Helps prolong life of intake and engine components

How do I know when to replace the filter again?

Check the element visually during scheduled maintenance; if the media is dark, clogged, or damaged, replace it. Follow the vehicle manufacturer’s recommended intervals and adjust frequency for dusty driving conditions.

• Inspect at every oil change or per vehicle schedule
• Replace sooner in dusty or off-road environments
• Look for tears, warping, or heavy soiling on the media
• Use OEM-sized replacements to ensure proper fit

Who is this for: The Denso 143-3003 is intended for vehicle owners, technicians and DIY mechanics seeking a direct-fit, lightweight replacement air filter that matches OEM sizing and arrives in a compact, easy-to-handle package. It's suitable for routine maintenance or as a spare part for compatible engine intake housings where a 12.5" x 7.6" x 1.5" rectangular filter is required.