Description
SIERRA MerCruiser 2.5L / 3.0L Exhaust Manifold Gasket Set – 18-4367
Sierra 18-4367 is a exhaust manifold gasket set for MerCruiser GM 153/181 CID 2.5L and 3.0L 120/140 HP engines from serial 6229718 and later using Siamese-port cylinder heads.
- Exhaust-manifold gasket set for late-style Siamese-port GM four-cylinder MerCruiser heads.
- Direct interchange for MerCruiser 27-99777A1; also Barr MC47-27-99777A1, GLM 39320 and Mallory 9-61406.
- Verify serial number and cylinder-head port configuration because earlier 2.5/3.0L engines use different gasket arrangements.
- 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: 18-4367
- Part Type: Exhaust manifold gasket set
- Application: MerCruiser GM 153/181 CID 2.5L and 3.0L 120/140 HP engines from serial 6229718 and later using Siamese-port cylinder heads.
- Engine Family: GM 153 / 181 CID
- Displacement: 2.5L / 3.0L
- Horsepower: 120 / 140 HP
- Serial Range: 6229718 and later
Interchange / OEM References
- MerCruiser: 27-99777A1
- Barr: MC47-27-99777A1
- GLM: 39320
- Mallory: 9-61406
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