4" Air Cleaner Kit with Flat Base

• White paper filter offers dependable airflow in compact form

• Plain chrome top and flat base for a classic single-barrel look

• 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, plain 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 while supporting long-term serviceability. Overall assembled height is 3 1/2". 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 1/2" overall height, flat base, plain 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 air cleaner kit is designed for single-barrel carburetors with a 2⅝-inch neck (air horn) diameter. It is not compatible with 2-barrel or 4-barrel carburetors.

What kind of engine typically uses this kit?
This size is commonly used on economy engines and inline 6-cylinder engines equipped with a factory-style 1-barrel carburetor, as well as restoration projects for 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 the filter during routine maintenance rather than cleaning and reusing it.

How much hood clearance do I need for this air cleaner?
This air cleaner has an overall assembled height of 3½ inches. Measure from the carburetor mounting flange to the underside of the closed hood to ensure adequate clearance before installation.

Does this kit include the mounting hardware?
Yes. This kit includes both a mounting stud and mounting nut for installation.

What's the difference between this and the deep dish version?
This version features a plain top, while the alternate version uses a deep dish top. Both share the same 4-inch round housing, flat base, 2⅝-inch neck flange, and disposable paper filter element.