18-8523 Exhaust Elbow Mounting Kit
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Restore the seal after inspecting or replacing exhaust risers
Regular inspection of exhaust system risers and manifolds is an important step in maintaining separation of cooling water and exhaust gases. Replacing the exhaust elbow gaskets after these inspections is the best practice approach. Sierra makes sourcing parts for do-it-yourselfers and technicians easy by packaging exhaust riser gaskets and replacement studs together. The gaskets meet or exceed factory specifications and match OEM openings and bolt hole patterns to ensure a quick installation. The included threaded studs replace tired and corroded fasteners to maximize torque without the risk of a shearing a corroded stud. Stay on top of the exhaust system and maintain the seals using Sierra gasket kits.
Key Features
- Meets or exceeds OEM specifications
- Sold as a kit for a single riser
- Fits GM based Small Block (305 and 350)V8 engines and Big Block (454) V8engines
- Compatible with Sierra p/n 18-1927 risers
18-8523 Application Guide
| Application | OEM Part Numbers |
|---|---|
| Mallory | 9-40477 |
| Osco | 7772-MK |
The Sierra Engine Parts Selector
In addition to gasket kits, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see our Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.
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