What is the inner diameter of this air cleaner horn?

The inner diameter where it meets the carburetor is 2.25 inches. This ensures proper fitment and airflow to the engine.

What models are compatible with this air cleaner horn?

This air cleaner horn is designed for 41-45 MB / GPW, 46-49 CJ2A, 49-53 CJ3A and 50-52 M38 models. It is specifically for vehicles equipped with the 134 cubic inch L-head 4-cylinder engine.

Is there a complete kit available for the air horn?

Yes, OMIX offers a complete air horn kit under part number 17737.08. This kit includes all the necessary components for a complete installation.

OMIX

Specifications

Brand: OMIX
Part #: 12021.58
UPC: 804314010171

OMIX

Omix Air Cleaner Horn 41-53 Willys MB CJ2A CJ3A M38

Name: Omix Air Cleaner Horn 41-53 Willys MB CJ2A CJ3A M38
Brand: OMIX
Price: 32.58 USD
Availability: InStock

$32.58

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Replacement air cleaner horn. Fits Willys MB, CJ2A, CJ3A and M38 models.

Key Features

Direct replacement — fits right
Replaces OE 641918 — exact fit
2.25-inch inner diameter — connects to the carburetor

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits these vehicles

Jeep Willys 1946-1953
Willys MB 1941-1943

Product Details

Omix proudly offers all the parts you need to keep your Willys/Jeep running like new with quality standards that always meet or exceed those of the factory part. This replacement air cleaner horn fits 41-45 MB / GPW, 46-49 CJ2A, 49-53CJ3A and 50-52 M38 models equipped with the 134 cubic in. L-head 4 cylinder engine. This air cleaner horn measures 2.25- in. ID where it meets carburetor. For a complete air horn kit, use 17737.08. Replaces OE 641918