SIERRA MerCruiser 3.0L GM 181 Overhaul Gasket Set – 18-4384

Description

SIERRA MerCruiser 3.0L GM 181 Overhaul Gasket Set – 18-4384

Sierra 18-4384 is a engine overhaul gasket set for MerCruiser GM 181 CID / 3.0L engines in serial-number range 2508261 through 6229717, excluding cataloged 3.0LX variants.

• Overhaul sealing set for early/mid GM 181 CID MerCruiser four-cylinder engines.
• Cross-references GLM 39060 and Mallory 9-61101.
• Serial-number verification is essential because later 3.0L engines and 3.0LX variants can use different head/manifold gasket configurations.
• Designed as a direct marine-service replacement where the listed Sierra/OEM reference is specified.
• Compare the original part number, dimensions and assembly configuration before installation.

Fitment for marine engine and drive service parts can vary by model, serial number, drive/gearcase, cooling configuration and prior OEM supersessions. Compare the original OEM number and physical configuration before installation, and follow the applicable manufacturer service procedure and torque specifications.

Specifications

• Manufacturer: Sierra
• Part Number: 18-4384
• Part Type: Engine overhaul gasket set
• Application: MerCruiser GM 181 CID / 3.0L engines in serial-number range 2508261 through 6229717, excluding cataloged 3.0LX variants.
• Engine: GM 181 CID / 3.0L
• Serial Range: 2508261-6229717
• Exclusion: Cataloged 3.0LX variants

Interchange / OEM References

• GLM: 39060
• Mallory: 9-61101