Denso 143-3409 Air Filter

Overview of the Denso FTF Air Filter 143-3409

The Denso FTF Air Filter 143-3409 is designed to provide reliable engine air filtration for a range of GM vehicles. Engineered with precise dimensions and a circular shape, this air filter supports optimal airflow and engine performance in models like the Chevrolet Blazer, Cadillac DeVille, and GMC Yukon.

• Inside diameter: 250.0 mm
• Outside diameter: 306.0 mm
• Height: 89.0 mm
• Circular shape for consistent fitment
• Compatible with multiple Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models

Detailed Product Description

The Denso FTF Air Filter 143-3409 features a circular design with an inside diameter of 250.0 mm, an outside diameter of 306.0 mm, and a height of 89.0 mm. These dimensions ensure a precise fit in the air intake system of various GM vehicles, including the Chevrolet Camaro, Pontiac Firebird, and Buick LeSabre. The filter is engineered to maintain proper airflow while effectively capturing airborne contaminants, which helps protect the engine from dust, dirt, and debris. This part number 143-3409 is part of Denso's FTF Air Filter line, known for its focus on filtration efficiency and durability in demanding automotive environments.

Compatible Vehicles and Applications

This engine air filter is compatible with a wide range of GM makes and models, including but not limited to:

• Buick Century, LeSabre, and Regal
• Cadillac DeVille, Fleetwood, and Eldorado
• Chevrolet Blazer, Camaro, Caprice, and Impala
• GMC Sierra, Yukon, and Jimmy
• Oldsmobile Cutlass, Delta 88, and 98
• Pontiac Firebird, Grand Prix, and Bonneville

Common Issues Addressed by the Denso FTF Air Filter

• Prevents engine damage caused by dust and debris
• Maintains optimal air-to-fuel ratio for efficient combustion
• Reduces engine wear and prolongs engine life
• Helps maintain consistent engine performance and fuel economy
• Minimizes intake system contamination

Installation Notes and Tips

• Ensure the air filter housing is clean before installation
• Verify the filter orientation matches the original part
• Check for proper sealing to avoid unfiltered air bypass
• Replace the air filter at recommended service intervals or when visibly dirty
• Use appropriate tools to avoid damage to the filter or housing

Quality Assurance and Warranty

Denso manufactures the FTF Air Filter 143-3409 to meet OEM specifications for fit, form, and function. The product undergoes rigorous quality control to ensure consistent filtration performance and durability. While specific warranty details may vary, Denso typically offers coverage against manufacturing defects to provide confidence in product reliability.