Sierra 18-2771 OMC Cobra Bellows Kit

Sierra 18-2771 OMC Bellows Kit

Sierra replacement bellows kit.

• For: OMC Cobra without cone clutch

Kit Includes:

• 18-2764 Exhaust bellows
• 18-2613 Outdrive gasket set
• 18-2100 Heavy duty gimbal bearing
• 18-2763 Shift cable bellows
• 18-2765 U-joint bellows
• 18-710-64-2 Hose clamp 3-9/16 to 4-1/2
• 18-710-48-2 Hose clamp 2-6/16 to 3-1/2

Interchangeable With:

• GLM
• 21962
• Mallory
• 9-72930
• OMC Stern Drive
• 3854270
• 3858631
• Volvo Penta
• 3854270
• 3858631

Frequently Asked Questions

What is the Sierra 18-2771 OMC Bellows Kit used for?

The Sierra 18-2771 OMC Bellows Kit is a replacement bellows kit designed for OMC Cobra stern drives without a cone clutch. The kit includes exhaust bellows, shift cable bellows, U-joint bellows, an outdrive gasket set, a heavy-duty gimbal bearing, and two hose clamps.

What OMC applications does the Sierra 18-2771 Bellows Kit fit?

The Sierra 18-2771 Bellows Kit is specified for OMC Cobra applications without a cone clutch. The supplied product description does not provide model years or serial-number ranges, so verify your OMC Cobra application and confirm that it does not use a cone clutch before installation.

What is included with the Sierra 18-2771 OMC Bellows Kit?

The kit includes an 18-2764 exhaust bellows, 18-2613 outdrive gasket set, 18-2100 heavy-duty gimbal bearing, 18-2763 shift cable bellows, 18-2765 U-joint bellows, an 18-710-64-2 hose clamp measuring 3-9/16 to 4-1/2, and an 18-710-48-2 hose clamp measuring 2-6/16 to 3-1/2.

What parts are interchangeable with the Sierra 18-2771 Bellows Kit?

The Sierra 18-2771 Bellows Kit is interchangeable with GLM 21962 and Mallory 9-72930. Listed OMC Stern Drive interchangeable numbers are 3854270 and 3858631. Volvo Penta also lists 3854270 and 3858631 as interchangeable part numbers.

Does the Sierra 18-2771 Bellows Kit include a gimbal bearing?

Yes. The Sierra 18-2771 Bellows Kit includes one 18-2100 heavy-duty gimbal bearing. It also includes the exhaust, shift cable, and U-joint bellows, an outdrive gasket set, and two hose clamps as part of the replacement kit.

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