Sierra 18-2619-1 MerCruiser Alpha One Outdrive Gasket Set

Sierra 18-2619-1 MerCruiser Outdrive Gasket Set

Sierra high quality engine parts are designed to meet or exceed OEM requirements.

• For MerCruiser R, MR, Alpha and Alpha One Gen II Outdrives (1983 and Newer) (s/n 6225577 & up).

Kit Includes:

• (1) 18-2743 Outdrive Mounting Gasket
• (1) 18-2840 Bell Housing Gasket
• (1) 18-7153 O-Ring
• (1) 18-7170 O-Ring
• (1) 18-7117 O-Ring

Replaces:

• GLM
• 39620
• Mallory
• 9-62601
• 9-62601-25
• MerCruiser Stern Drive
• 27-94996A20
• 27-94996
• 27-94996A1
• 27-64818A2
• 27-949962
• 27-64818A3
• 27-94996A2
• 27-94996Q2

Frequently Asked Questions

What is the Sierra 18-2619-1 MerCruiser Outdrive Gasket Set used for?

The Sierra 18-2619-1 MerCruiser Outdrive Gasket Set is a replacement gasket set for specified MerCruiser outdrive applications. It is designed for R, MR, Alpha, and Alpha One Gen II outdrives from 1983 and newer with serial numbers 6225577 and up.

What MerCruiser outdrives does the Sierra 18-2619-1 gasket set fit?

This gasket set is specified for MerCruiser R, MR, Alpha, and Alpha One Gen II outdrives from 1983 and newer, with serial numbers 6225577 and up. Verify your outdrive model, year, and serial number against the application information before ordering.

What is included in the Sierra 18-2619-1 Outdrive Gasket Set?

The kit includes one 18-2743 Outdrive Mounting Gasket, one 18-2840 Bell Housing Gasket, one 18-7153 O-Ring, one 18-7170 O-Ring, and one 18-7117 O-Ring. These components are supplied as the listed contents of the gasket set.

What replacement part numbers does the Sierra 18-2619-1 replace?

The Sierra 18-2619-1 replaces GLM 39620, Mallory 9-62601 and 9-62601-25, and several MerCruiser Stern Drive numbers including 27-94996A20, 27-94996, 27-94996A1, 27-64818A2, 27-949962, 27-64818A3, 27-94996A2, and 27-94996Q2.

Is the Sierra 18-2619-1 gasket set compatible with Alpha One Gen II outdrives?

Yes. The product description specifically lists Alpha One Gen II outdrives among the supported applications. The listed fitment is for 1983 and newer applications with serial numbers 6225577 and up, so verify the exact outdrive and serial number before use.

What should I verify before ordering the Sierra 18-2619-1 Outdrive Gasket Set?

Verify that your MerCruiser outdrive is an R, MR, Alpha, or Alpha One Gen II model and that its application falls within the listed 1983-and-newer range with serial number 6225577 or higher. You can also compare the existing part number with the replacement numbers listed for this gasket set.

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