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


$589.00 $559.00

This item is out of stock



OEM 1978-79 Pontiac Trans Am Pontiac W-72 400 Shaker Air Cleaner. The assembly has media blasted and refinished in semi-gloss black to present a period correct image. The base features the W-72 specific oval snorkel in very good condition with the correct 6" opening, new yellow striped and black vacuum lines, and a new heavy duty air filter. The exterior features a new Air Cleaner Service Decal (PJ=79). The base features the correct deep drop required for proper shaker hood clearance, as well as the angled flange that parallels the base level with the sloped hood line. Includes the ported thermal vacuum sensor, EVS triangular sensor, and correct air temperature sensor with OEM clip.  A rarely seen date stamp has been added to the base as a nice touch of authenticity. 

The original shaker lid is in excellent condition as well. To complete the package, a new heavy duty air filter, period correct wing nut, and a new filter breather with GM stamped adapter are included. 

As an added bonus, a correct Pontiac T/A specific pre-heater elbow replete with Wittek tower clamp and black aluminized hose is included to make installation more complete.

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

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

Many of our parts have limited availability - replacements cannot be guaranteed. As such, the old adage "here today, gone tomorrow" applies. While we strive to maintain a diverse level of inventories, we can not predict if or when we will have replacements.




This assembly is correct for the following 1978-79 models:


Trans Am with 400 / 455* Pontiac engine

*It will also fit 73-76 and 80-81 cars with Pontiac 400/455 engine.1977 W-72 cars used the round 4" air cleaner. Note that this air cleaner is specific to 78-79 models in that the location of the valve cover breather inlet - it differs from the earlier models. 


Note: this will NOT fit the L80 403 Olds engines or Pontiac 301/Chevrolet 350 engines due to the offset of the shaker scoop, as well as the difference in carburetor flange drop. 




The assembly will fit factory 4 barrel Quadrajet carburetors with a 5 1/8" diameter flange, as well as Holley (it will NOT fit double pumpers; i.e. models 4150/4160), Carter/Edelbrock variations without an electric choke (some adjustment to the carburetor alignment tangs may be required). 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/tracking information provided.



This assembly is guaranteed to match the item description – customers have up to 14 days to return the assembly after receipt 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 Musclecar Air Cleaners can initiate a shipping damage claim.



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