Outdrive Mounting Gasket Set for MerCruiser Alpha One, R, MR | Replaces 27-94996Q2, 18-2619-1

Product Overview

Keep your vessel in peak condition with this professional-grade outdrive mounting kit. Designed specifically for MerCruiser R, MR, and Alpha One Gen I & II drives, this comprehensive set provides a watertight seal between the outdrive and the bell housing. Utilizing marine-grade materials, it prevents corrosion and ensures smooth mating of metal surfaces, making it an essential kit for annual service or drive removal.

Product Compatibility

This kit is a high-quality replacement for the following sterndrive models and part numbers:

Drive Series	Generation	OEM Reference	Sierra Reference
MerCruiser R	All Models	27-94996Q2, 27-94996T2	18-2619-1
MerCruiser MR	All Models	27-64818T4	18-2743
Alpha One	Gen I & Gen II	27-35982	18-2840

Specifications

Feature	Details
OEM Cross-Ref	27-94996Q2, 94996T2, 27-64818T4, 27-35982
Sierra Cross-Ref	18-2619-1, 18-2743, 18-2840
Material	Marine-Grade Fiber & Nitrile (Buna-N) Rubber
Application	Outdrive to Bell Housing Mounting
Environment	Saltwater & Freshwater Compatible

Key Features

• Complete Service Kit: Includes the mounting gasket, bell housing gasket, and all necessary O-rings (6 pieces total) for a full outdrive installation.
• Marine-Grade Durability: Crafted from high-density gasket materials and specialized rubber compounds designed to resist salt, oil, and fuel degradation.
• Surface Protection: Ensures proper alignment and mating between the outdrive and bell housing, preventing metal-to-metal friction and galvanic corrosion.
• Precision Sealing: Includes 6 specialized O-rings to ensure no-leak performance in critical drive shaft and water passage areas.
• Direct Replacement: Engineered to meet or exceed OEM specifications for a perfect "drop-in" fit, saving time during your boat's off-season maintenance.