Sierra Outdrive Gasket Set 18-2614, Replaces 27-64818, MerCruiser 1967-1982

The Sierra 18-2614 Outdrive Gasket Set is a complete gasket kit designed for MerCruiser outdrive installations covering 1967-1982. This kit is built to reseal the connection points between the drive shaft housing and bell housing, helping prevent water intrusion and gear lube leaks at critical outdrive mating surfaces. The set includes the drive shaft housing to bell housing gasket along with the additional gaskets and O-ring needed for a complete reseal in one package, so installers do not need to source individual components separately.

Each gasket in the set is manufactured to match OEM dimensions and sealing surfaces, allowing for a proper fit without modification. This set is commonly used during outdrive removal and reinstallation, gimbal housing service, or any time the bell housing is separated from the drive shaft housing on covered MerCruiser applications. Using a complete matched gasket set rather than reusing old gaskets helps ensure a consistent seal across all mating surfaces serviced during the job.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2614
• Product Name: Outdrive Gasket Set
• Weight: 0.13 pounds
• UPC: 030999312563
• Contents: Drive Shaft Housing to Bell Housing Gasket (18-2820), additional gasket (18-2840), O-ring

Fitment

• MerCruiser outdrive applications, 1967-1982

Replaces (OEM)

• 27-64818A1
• 27-64818T4
• 27-64818Q4
• 27-64818A20
• 27-64818A4
• 27-64818
• 27-45821

Frequently Asked Questions

What does the Sierra 18-2614 gasket set include? The 18-2614 kit includes the drive shaft housing to bell housing gasket (18-2820), an additional gasket (18-2840), and an O-ring, giving you every gasket needed to reseal that outdrive connection in one package.

What years does this outdrive gasket set fit? Sierra 18-2614 is designed for MerCruiser outdrive applications covering 1967-1982.

Is the 18-2614 set a direct OEM replacement? Yes, it is manufactured to match OEM dimensions and sealing surfaces, so it installs without modification in place of the original gaskets.

What OEM part numbers does 18-2614 cross-reference to? This set replaces OEM numbers 27-64818A1, 27-64818T4, 27-64818Q4, 27-64818A20, 27-64818A4, 27-64818, and 27-45821.

How much does the 18-2614 gasket set weigh? The Sierra 18-2614 Outdrive Gasket Set weighs 0.13 pounds.

When should I replace these gaskets? Replace the gaskets in the 18-2614 set any time the drive shaft housing is separated from the bell housing, such as during outdrive removal or gimbal housing service, rather than reusing the old gaskets.

Does this kit include the drive shaft housing to bell housing gasket? Yes, that gasket, cataloged as 18-2820 with OEM number 27-64818, is included in the 18-2614 set along with the other gaskets needed for the job.

Can I reuse old gaskets instead of buying this set? Reusing old gaskets at the drive shaft housing to bell housing joint risks water intrusion or gear lube leaks; the 18-2614 set provides fresh, correctly sized gaskets for a proper reseal.

What is the UPC for the Sierra 18-2614 gasket set? The UPC for the Sierra 18-2614 Outdrive Gasket Set is 030999312563.

Is this gasket set specific to MerCruiser outdrives? Yes, the 18-2614 set is designed for MerCruiser outdrive applications from 1967-1982.