Upper Exhaust Bellows for OMC Cobra and Volvo Penta Stern Drives – 4.3L to 8.2L, Replaces 3852696
Upper Exhaust Bellows for OMC Cobra and Volvo Penta Stern Drives – 4.3L to 8.2L, Replaces 3852696 is backordered and will ship as soon as it is back in stock.
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Upper Exhaust Bellows for OMC Cobra and Volvo Penta Stern Drives – ...
Upper Exhaust Bellows for OMC Cobra and Volvo Penta Stern Drives – 4.3L to 8.2L, Replaces 3852696 is backordered and will ship as soon as it is back in stock.
Product Details
This Upper Exhaust Bellows is an aftermarket replacement for selected OMC Cobra and Volvo Penta stern-drive and out-drive applications. It is used in the upper exhaust connection and is listed for compatible 4.3L through 8.2L marine engine applications.
The company fitment record identifies this exhaust and cooling hose as a replacement for OEM number 3852696. Catalog references also identify Sierra 18-2779 as an exhaust hose that replaces 3852696. Always compare the existing hose, drive configuration, engine model, and application details before ordering.
- Upper exhaust bellows for selected OMC Cobra and Volvo Penta stern-drive applications.
- Single replacement bellows; this is not a multi-part kit.
- Designed to connect the upper exhaust path and help maintain a secure exhaust and cooling-hose connection.
- Confirm the part number and physical hose dimensions before installation.
Part Number Matrix
The following numbers are manufacturer or aftermarket cross-reference numbers associated with this upper exhaust bellows. Cross-reference numbers are provided for identification and should be checked against the complete application.
| Brand or Reference | Part Number | Reference Type |
|---|---|---|
| Volvo Penta | 3852696 | OEM reference |
| Evinrude / Johnson / OMC / BRP | 3852696 | OEM reference |
| Evinrude / Johnson | 778072 | OEM reference listed by the company catalog |
| Evinrude | 0913405 | OEM reference listed by the company catalog |
| Johnson | 913405 | OEM reference listed by the company catalog |
| GLM | 89224 | Aftermarket cross-reference |
| Mallory Marine | 9-72802 | Aftermarket cross-reference |
| Sierra Marine | 18-2779 | Aftermarket cross-reference |
Engine and Model Compatibility
The company application record lists the following compatible engine model families. The listed models are grouped by engine size; year, serial-number, shaft-length, and individual drive-configuration restrictions are not provided in the company record. Confirm the complete engine and stern-drive identification before purchase.
| Engine Size | Listed Models | Stroke | OEM Reference |
|---|---|---|---|
| 4.3L | GL, GS, GI, GXI, OSI | Not specified in the company record | 3852696 |
| 5.0L | FI, GL, FL, GXI, OSI | Not specified in the company record | 3852696 |
| 5.7L | GL, GI, GIL, OSI, GXI, OSXI | Not specified in the company record | 3852696 |
| 5.8L | FL, FI, FSI | Not specified in the company record | 3852696 |
| 7.4L | GL, GI | Not specified in the company record | 3852696 |
| 8.1L | GI, GXI, OSI | Not specified in the company record | 3852696 |
| 8.2L | GL | Not specified in the company record | 3852696 |
Technical Specifications
- Product Type
- Upper exhaust bellows / exhaust hose
- Application
- Selected OMC Cobra and Volvo Penta stern-drive and out-drive systems
- Engine Range
- Listed applications from 4.3L through 8.2L
- Primary OEM Reference
- 3852696
- Aftermarket References
- GLM 89224, Mallory Marine 9-72802, Sierra Marine 18-2779
- Physical Dimensions
- Verify the dimensions of the original hose and the available mounting space before installation.
- Material and Color
- Not specified in the company product record.
- Installation Position
- Upper exhaust connection
What's in the Box
- 1 × Upper Exhaust Bellows
Hose clamps, tools, gaskets, and other installation hardware are not listed as included unless specifically supplied with the order.
Installation Notes
- Turn off the engine, remove the ignition key, and disconnect the battery before beginning work.
- Gain access to the upper exhaust connection and identify the existing hose routing and clamp positions.
- Loosen and remove the clamps, then remove the old bellows without damaging the adjoining exhaust or drive components.
- Clean and inspect both mounting surfaces. Replace corroded clamps or damaged adjacent components as required.
- Position the replacement bellows in the same orientation as the original and seat it fully on both connections.
- Secure the hose with suitable clamps tightened according to the engine or drive manufacturer's service instructions.
- After installation, reconnect the battery and inspect the area while running the engine. Check for exhaust, water, or cooling-system leaks before returning the boat to service.
Troubleshooting and FAQ
How do I confirm that this bellows fits my engine?
Start by checking whether your engine and drive match the listed OMC Cobra or Volvo Penta application and whether the existing component corresponds to OEM reference 3852696. Compare the original hose's position, connection size, and overall dimensions. Because year and serial-number limits are not supplied in the company record, confirm those details with the engine or drive service information when applicable.
What is the difference between an upper and lower exhaust hose?
This product is an upper exhaust bellows. Upper and lower exhaust hoses can have different dimensions, shapes, and application ranges. Do not substitute a lower hose solely because the engine displacement appears similar.
What are common signs of a damaged exhaust bellows?
Inspect for cracks, splits, hardening, deformation, loose connections, exhaust odor, water leakage, or visible deterioration. A damaged exhaust bellows should be replaced promptly to help prevent further exhaust and water-ingress problems.
Are clamps included?
No clamps or other hardware are specified as included. Reuse existing hardware only if it is suitable and in good condition, and follow the manufacturer's service instructions for clamp selection and tightening.
Is this an OEM part?
This listing is for an aftermarket replacement bellows. OEM and aftermarket numbers are shown only as application and cross-reference information. OMC, Volvo Penta, Evinrude, Johnson, BRP, GLM, Mallory, and Sierra are referenced trademarks of their respective owners.
Safety and Important Information
- Verify the complete engine, stern-drive, and existing-part details before ordering.
- Do not rely on engine displacement alone; upper and lower exhaust hoses may not be interchangeable.
- Disconnect the battery and allow the engine and exhaust components to cool before installation.
- Inspect the finished installation for exhaust and water leaks before operating the boat.
- Professional installation is recommended when access is restricted or the drive and exhaust system require disassembly.
About Sea Sierra
- Marine Parts Support — We provide replacement components for a range of marine engine and stern-drive applications.
- Application-Focused Listings — Product pages include available OEM and aftermarket references to help with part identification.
- Service-Minded Assistance — Contact support with your engine model, drive model, and existing part number if you need help comparing an application.
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