4" Louvered Air Cleaner Kit with Flat Base

• White paper filter offers dependable airflow in compact form

• Louvered top design adds visual detail to a mini air cleaner

• Fits carburetors with a 2 5/8" neck diameter, single-barrel only

• Nut and stud included for straightforward assembly

This 4" air-cleaner kit combines a flat base, louvered top, and white paper filter element into a complete intake-service package, sized for a 2 5/8" carburetor neck. It's built specifically for single-barrel carburetor applications — this kit is not compatible with 2-barrel, 4-barrel, or larger housings.

The 2" white paper filter element supports dependable airflow and filtration in properly matched carbureted intake systems. Steel construction with a chrome finish provides a clean assembled look with a distinct louvered top pattern, while supporting long-term serviceability. Overall assembled height is 3 1/8". This is a disposable filter, replaced rather than cleaned.

Commonly used on economy and 6-cylinder engines running a factory 1-barrel carburetor, as well as restoration projects on originally 1-barrel-equipped vehicles.

Applications
Fits carburetors with a 2 5/8" neck diameter, sized specifically for single-barrel carburetor applications; commonly used on economy and 6-cylinder engines with factory 1-barrel carburetors, and on restoration projects with original 1-barrel setups.

Sizing
4" round diameter, 3 1/8" overall height, flat base, louvered top style, 2 5/8" neck flange. Not compatible with 2-barrel, 4-barrel, or larger carburetor housings.

Will this fit a 2-barrel or 4-barrel carburetor?
No — this kit is sized for single-barrel carburetor applications at a 2 5/8" neck diameter; it's not compatible with 2-barrel, 4-barrel, or larger housings.

What kind of engine typically uses this kit?
This size is common on economy and 6-cylinder engines running a factory 1-barrel carburetor, as well as restoration builds on originally 1-barrel-equipped vehicles.

Is the filter in this kit washable or disposable?
This kit includes a white paper filter element, which is disposable — replace it during routine service rather than cleaning and reusing it.

How much hood clearance do I need for this air cleaner?
This kit has a 3 1/8" overall assembled height, so measure from your carburetor base to the hood (with the hood closed) before installing.

Does this kit include the mounting hardware?
Yes — a mounting nut and stud are included.

What's the difference between this and the plain-top or deep dish versions?
This kit has a louvered top design, distinct from the plain-top and deep dish versions in this same 4" size — all three share the same 2 5/8" neck flange and single-barrel fitment.