Restoring American Muscle Car and Classics - we help your engine breath easier!

1963 Buick Riviera Wildcat 401 445 Air Cleaner


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OEM 1963 Buick Riviera Air Cleaner Assembly in very nice condition. This assembly has been refinished to the original look of the 1963 cars featuring the exclusive red wrinkle finish. The base features a very clean interior and the indexed 4 1/8" carburetor flange designed for the Carter AFB carburetor. The snorkel is very nice and is garnished with a GM licensed Wildcat decal. 

The OEM lid is clean and presents well and is garnished with a "Riviera Wildcat 445" aluminum silk-screened engine identification plate - specific to the 63 cats (note that the plate is not glued in place and the plastic protective cover is still installed as a precaution). The assembly is completed by adding a new heavy duty air filter and period correct wing nut. The red wrinkle paint features the same variations consistent with the original finishes. 

This assembly is in very nice condition and will enhance your restoration. Best of all, it is a genuine GM part! 

For further information on the restoration process, please contact us.


This assembly is correct for the following:

1963 Buick

Riviera 401 and 425

Note: this will also fit the 64-65 models - these were painted black (64) or completely different (65), but certainly adds a flare to your engine compartment. 


This assembly will fit factory Carter AFB 4 barrel carburetors with the 4 1/8" flange. If you have modified your carburetor or intake manifold, please inquire first prior to bidding to ensure fitment is correct. Return requests for non-fitment will not be honored.



The assembly will ship within one day (usually the day of payment) with shipping and tracking information provided


This assembly is guaranteed to match the item description - customers have up to 14 days from the date of delivery to return the assembly if it is not as described


Assemblies must be returned in the original packing- customers are responsible for return shipping charges. A refund will be issued upon receipt of the inspected assembly. Returns for non-fitment will not be honored-please ask questions first.


In the event of shipping damage, customers must save all packaging and send 5 digital pictures so Muscle Car Air Cleaners can initiate a shipping damage claim.


We Ship With

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Estimated shipping costs:

US $15-30

Canada / Hawaii / Alaska $45 +/-

Europe/Scandinavia $65 

Australia $95 or less.