Denso 143-3365 Air Filter

Denso FTF Air Filter 143-3365 Overview

The Denso FTF Air Filter 143-3365 is an engine air filter built to Denso’s First Time Fit standards for consistent filtration performance and proper fitment. With a rectangular shape and dimensions of 41.0 height, 270.0 side A length, and 202.0 side B length, it is designed for a direct replacement application across a wide range of GM vehicles.

This part is a strong match for drivers searching for an engine air filter for Buick LeSabre, Pontiac Grand Prix, Chevrolet Impala, and related applications. If you need a Denso 143-3365 replacement for routine maintenance, this filter is built for the specified fitment list below.

Key Features

• Engine air filter from Denso’s FTF Air Filter line
• Rectangular filter shape for listed OE-style applications
• Dimensions: 41.0 height, 270.0 side A length, 202.0 side B length
• Designed to meet Denso quality standards for filtration and fit
• Direct replacement option for many Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models

FTF Air Filter Line Details

Denso’s First Time Fit Air Filter line focuses on application-specific fit and consistent manufacturing quality. For buyers comparing replacement engine air filters, the 143-3365 is positioned as an OE-style service part for vehicles that require the listed rectangular filter dimensions and fitment profile.

This Denso 143-3365 air filter also cross-references Wix 46153 for the same application.

Vehicle Fitment

• Fits 2005-2009 Buick LaCrosse, N/A
• Fits 1999-2008 Pontiac Grand Prix, N/A
• Fits 1999-2005 Buick Century, N/A
• Fits 1992-2005 Buick LeSabre, N/A
• Fits 1991-2005 Buick Park Avenue, N/A
• Fits 2000-2005 Chevrolet Impala, N/A
• Fits 1994-1996 Chevrolet Impala, N/A
• Fits 2000-2005 Chevrolet Monte Carlo, N/A
• Fits 1992-2005 Pontiac Bonneville, N/A
• Fits 1999-2004 Buick Regal, N/A
• Fits 1988-2002 Cadillac Eldorado, N/A
• Fits 1999-2002 Oldsmobile Intrigue, N/A
• Fits 1995-1999 Buick Riviera, N/A
• Fits 1988-1999 Cadillac DeVille, N/A
• Fits 1992-1999 Oldsmobile 88, N/A
• Fits 1995-1999 Oldsmobile Aurora, N/A
• Fits 1996-1999 Oldsmobile LSS, N/A
• Fits 1997-1998 Oldsmobile Regency, N/A
• Fits 1988-1997 Cadillac Seville, N/A
• Fits 1994-1996 Buick Roadmaster, N/A
• Fits 1988-1996 Cadillac Commercial Chassis, N/A
• Fits 1994-1996 Cadillac Fleetwood, N/A
• Fits 1988-1992 Cadillac Fleetwood, N/A
• Fits 1994-1996 Chevrolet Caprice, N/A
• Fits 1991-1996 Oldsmobile 98, N/A
• Fits 1993 Cadillac 60 Special, N/A
• Fits 1993 Cadillac Allante, N/A
• Fits 1993 Pontiac Firebird, N/A

What This Air Filter Helps Address

• Restricted airflow from a dirty or clogged engine air filter
• Routine maintenance replacement for listed Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models
• Fitment issues caused by using the wrong filter dimensions
• Reduced engine breathing from a worn filtration element
• Service needs on vehicles requiring a rectangular air filter profile

Installation Notes and Tips

Verify the filter dimensions and vehicle application before installation, especially on older GM platforms with similar model names and overlapping years. Confirm the airbox style and compare the existing filter shape and measurements to the 143-3365 before ordering.

For best results, replace the engine air filter during regular maintenance and inspect the air intake housing for debris before installing the new filter. This helps maintain proper airflow and keeps the filter seated correctly in the airbox.

Quality Assurance

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