Total Price:
Add to CartFor GM 153 & 181 (2.5 & 3.0L) CID Engines; 120 & 140 HP - S/N 6229718 & UP (With Siamese Port Cylinder Heads)
Interchangeable with:
What is the MerCruiser 4Cyl Exhaust Manifold Gasket Set by Sierra used for?
The MerCruiser 4Cyl Exhaust Manifold Gasket Set by Sierra is designed for GM 153 and 181 CID engines, which are 2.5L and 3.0L engines. It is specified for 120 and 140 HP applications with Siamese port cylinder heads.
What engines does the MerCruiser 4Cyl Exhaust Manifold Gasket Set fit?
This exhaust manifold gasket set is specified for GM 153 and 181 CID engines, corresponding to 2.5L and 3.0L applications. The listed horsepower range is 120 and 140 HP, and the application is for engines with Siamese port cylinder heads.
What serial number range is supported by this MerCruiser exhaust manifold gasket set?
The MerCruiser 4Cyl Exhaust Manifold Gasket Set by Sierra is listed for 120 and 140 HP applications with serial numbers 6229718 and up. Verify your engine's serial number and cylinder head configuration before purchasing to confirm the application matches the listed specifications.
What cylinder head configuration is required for this MerCruiser exhaust manifold gasket set?
This gasket set is specifically listed for engines with Siamese port cylinder heads. Because the description does not provide compatibility for other cylinder head configurations, verify that your engine has the specified Siamese port cylinder head before using this gasket set.
What part numbers are interchangeable with the MerCruiser 4Cyl Exhaust Manifold Gasket Set by Sierra?
The Sierra gasket set is interchangeable with Barr MC47-27-99777A1, GLM 39320, Mallory 9-61406, and MerCruiser Stern Drive 27-99777A1. These interchangeable part numbers can help verify that the gasket set corresponds to the part required for your application.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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