Sierra 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.