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Cadillac STS Exhaust Gaskets and Seals

This page brings together exhaust gaskets and seals for the Cadillac STS covering model years 2005–2011, including exhaust manifold gaskets, pipe flange gaskets, and catalytic converter gaskets. Select your year above and we'll show only the exhaust gaskets and seals that fit your Cadillac STS. Fitment is checked against our vehicle data for every part listed.

1 - 6 of 6 results

Best Seller Free Shipping
Picture of MAHLE Exhaust Manifold Gasket

MAHLE Exhaust Manifold Gasket

27 reviews
Vehicle Specific
from $5
In Stock (10+)
Picture for manufacturer MAHLE
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Picture of MAHLE Victor Reinz Exhaust Flange Gasket

MAHLE Victor Reinz Exhaust Flange Gasket

7 reviews
Vehicle Specific
from $5
In Stock (10+)
Picture for manufacturer MAHLE
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Picture of MAHLE Victor Reinz Exhaust Pipe Flange Gasket

MAHLE Victor Reinz Exhaust Pipe Flange Gasket

49 reviews
Vehicle Specific
from $4
In Stock (10+)
Picture for manufacturer MAHLE
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Picture of MAHLE Exhaust Pipe Flange Gasket

MAHLE Exhaust Pipe Flange Gasket

56 reviews
Vehicle Specific
from $5
In Stock (10+)
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Picture of MAHLE Victor Reinz Exhaust Manifold Gasket

MAHLE Victor Reinz Exhaust Manifold Gasket

24 reviews
Vehicle Specific
from $8
In Stock (10+)
Picture for manufacturer MAHLE
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Free Shipping
Picture of MAHLE Victor Reinz Catalytic Converter Gasket

MAHLE Victor Reinz Catalytic Converter Gasket

13 reviews
Vehicle Specific
from $5
In Stock (10+)
Picture for manufacturer MAHLE
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What's here for your Cadillac STS

  • Exhaust Pipe Flange Gaskets — OE-replacement style seals for pipe-to-pipe connections
  • Exhaust Manifold Gasket Sets — multi-piece sets covering the full manifold sealing surface
  • Catalytic Converter Gaskets — gaskets sized for converter inlet and outlet joints
  • Individual Exhaust Manifold Gaskets — single-position manifold gaskets for targeted replacement

The widest selection here comes from Victor, MAHLE, Fel-Pro, and AP Exhaust, each offering OE-replacement gaskets in this range. Other categories Cadillac STS owners shop for: Cadillac STS Shocks and Struts, Cadillac STS Valve Train Parts and Cadillac STS Tires, or browse all Cadillac STS parts and accessories.