Sierra 18-2772-1 Transom Seal Kit for OMC Cobra and Volvo SX Drives

The Sierra 18-2772-1 Transom Seal Kit is a complete service kit designed for OMC Cobra sterndrive and Volvo Penta SX cone clutch drives. This comprehensive kit contains all the essential components needed to service the critical transom seal system, protecting your drive against water intrusion and maintaining reliable performance.

Kit Includes:

• Gimbal bearing (Sierra 18-2100, replaces OEM 3853807)
• U-joint bellows (Sierra 18-2765, replaces OEM 3854127)
• Exhaust bellows (Sierra 18-1074, replaces OEM 3850426)
• Transom seal (Sierra 18-2699, replaces OEM 3852560, 911823)
• Hose clamp (Sierra 18-7315, replaces OEM 853012-3)
• Outdrive gasket set with mounting o-rings

Application Notes:

• Fits all OMC Cobra stern drives with cone clutch
• Fits Volvo Penta SX drives with cone clutch (SX-S, SX-C, SX-R, SX-M)
• Not compatible with SX-A drive models
• Water intake hose not included (varies by model)

Sierra Marine parts are engineered to meet or exceed OEM specifications, providing reliable performance at an exceptional value. This kit replaces Sierra part numbers 18-2772 and 18-2786, as well as Mallory 9-72931. Regular maintenance of bellows and seals every 3-5 years helps prevent costly drive damage from water intrusion.