Denso 143-3037 Air Filter

Denso FTF Air Filter for Lexus LS400

The Denso First Time Fit Air Filter 143-3037 is an engine air filter built for the 1990-2000 Lexus LS400. With a circular shape and OE-style dimensions, it is sized to match the factory air intake setup for consistent filtration and fitment.

Denso’s FTF Air Filter line focuses on direct-fit replacement parts engineered to meet the brand’s quality standards. For Lexus LS400 owners searching for an engine air filter, Denso 143-3037 offers a straightforward OE replacement option backed by Denso’s filtration experience.

Key Features

• Engine air filter for the Lexus LS400
• Part number 143-3037 for direct reference and ordering
• Circular filter shape
• Height: 67.0
• Side A Length: 258.0
• Side B Length: 28.5
• First Time Fit product line from Denso
• Cross-reference: FRAM CA6821

Detailed Description

This Denso 143-3037 engine air filter is designed for 1990-2000 Lexus LS400 models and follows the dimensions needed for the factory air intake housing. The circular profile and listed measurements help support proper seating and reliable airflow management in the intake system. If you are replacing a worn Lexus LS400 air filter, this Denso FTF Air Filter provides a direct-fit service part for routine maintenance.

The First Time Fit line is Denso’s OE-style replacement range for drivers who want a filter matched to the application. This part also cross-references Purolator A44646 for the same application.

What It Helps Address

• Restricted airflow from a dirty or clogged engine air filter
• Dust and debris entering the intake system
• Reduced engine breathing caused by a neglected filter
• Maintenance replacement for 1990-2000 Lexus LS400 air filtration
• Fitment concerns when replacing the factory-style air filter

Installation Notes and Tips

Verify the filter shape and dimensions against the airbox before installation. Confirm the vehicle is a 1990-2000 Lexus LS400 and compare the old filter to Denso 143-3037 for a proper match. Inspect the air cleaner housing for dirt or debris before installing the new filter so the intake system stays clean.

Quality Assurance

Denso is a global OEM leader in engine filtration components, and the First Time Fit Air Filter line is engineered to meet Denso’s quality standards for fit and performance. Quality assurance is stated by the manufacturer for this product line.