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

1977-79 Pontiac Trans Am Olds 403 Breather to Valve Cover Tube


This item is out of stock

Image result for Olds 403 breather tube



OEM 1977 78 79 Pontiac Trans Am 403 L80 Oldsmobile Shaker Air Cleaner Breather To Valve Cover Tube. This piece has been refinished in 60% gloss to present a period correct image. It is the correct length for the Trans Ams equipped with the Olds 403 engine. It connects to the rubber grommet on the side of the air cleaner base and to the valve cover breather. This completes the emissions requirement for PCV system.

This part presents well and will enhance your restoration. 

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




This assembly is correct for the following 1977 78 79 models:


Trans Am with 403 Olds engine

Oldsmobile 1968-72

4-4-2 with 400/455 engine

This part cannot be used on Pontiac 301/400/455 or Chevrolet 305/350 engines due to the differences in PCV system designs. It is intended for Oldsmobile engines only.




This part will fit factory Olds air cleaner assemblies. If you have modified your air cleaner, carburetor, distributor, 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.




Image result for fedex usps logo


Estimated insured shipping costs:

            US  $8 

            Canada / Hawaii / Alaska $15 +/-

            Scandinavia  $35 or less

            Australia  $45 or less