Engineered Marine Products Bellows Kit 18-2771, Replaces 3854270, for OMC Cobra without Cone Clutch

This Engineered Marine Products Bellows Kit (18-2771) is a complete transom service kit built for OMC Cobra sterndrives without a cone clutch. It bundles the sealing and bellows components needed to service the transom assembly in one purchase, saving the time and guesswork of sourcing gaskets and bellows separately. The kit is engineered to OEM standards and is designed as a direct equivalent to OEM number 3854270, so it installs the way the original part did without modification.

Inside the kit you get an Outdrive Gasket Set (18-2613), a U-Joint Bellows (18-2765, equivalent to OE numbers 983973 and 987467), and an Exhaust Bellows (18-2764), covering the main wear points that fail during a transom or bellows service on this application. Engineered Marine Products has supplied both OEM and marine aftermarket channels for over 40 years, sourcing and engineering components to hold up to marine duty at a competitive price point.

This kit fits OMC Cobra sterndrives without a cone clutch. Because bellows and gasket kits are drive-specific, confirm your drive does not use a cone clutch before ordering.

Specifications

• Brand: Engineered Marine Products
• Manufacturer Part Number: 61-08715
• Kit Type: Bellows Kit (Transom Service Kit)
• Fitment: OMC Cobra without cone clutch
• Weight: 3.361 pounds
• Package Dimensions: 12 x 6 x 6 inches
• Exterior Finish: Machined
• Kit Contents: Outdrive Gasket Set (18-2613), U-Joint Bellows (18-2765), Exhaust Bellows (18-2764)
• Replaces (OEM): 3854270

Fitment

• OMC Cobra without cone clutch

Replaces (OEM)

• 3854270

Frequently Asked Questions

What is included in the Engineered Marine Products Bellows Kit 61-08715? The kit includes an Outdrive Gasket Set (18-2613), a U-Joint Bellows (18-2765), and an Exhaust Bellows (18-2764), covering the main components needed for a transom bellows service.

What does the 61-08715 bellows kit fit? This kit is designed for OMC Cobra sterndrives without a cone clutch.

Does this kit work on an OMC Cobra with a cone clutch? No, the 61-08715 kit is specified for OMC Cobra without cone clutch; a drive with a cone clutch requires a different kit.

What OEM part number does this kit replace? The Engineered Marine Products Bellows Kit 61-08715 (catalog stem 18-2771) replaces OEM number 3854270.

Is the U-Joint Bellows in this kit equivalent to an OEM part? Yes, the U-Joint Bellows (18-2765) included in this kit is equivalent to OE numbers 983973 and 987467.

How much does the 61-08715 bellows kit weigh? The kit weighs 3.361 pounds.

What are the package dimensions of this bellows kit? It ships in a package measuring 12 x 6 x 6 inches.

Is this kit made by the original equipment manufacturer or an aftermarket brand? Engineered Marine Products manufactures the 61-08715 kit to OEM standards as an aftermarket equivalent, not a re-boxed OEM part.

Does the kit include an exhaust bellows and a gasket set, or only the U-joint bellows? It includes all three: the Outdrive Gasket Set (18-2613), U-Joint Bellows (18-2765), and Exhaust Bellows (18-2764), not just one component.

What finish does this bellows kit have? The 61-08715 kit is listed with a machined exterior finish.

How do I know if my drive needs the without-cone-clutch version of this kit? The 61-08715 kit is built specifically for OMC Cobra drives without a cone clutch, so confirm your drive's clutch configuration before ordering to get the correct kit.