3852742 Lower Exhaust Bellows for Volvo Penta

SERDAMARINE / MARINE EXHAUST PARTS

Lower Exhaust Bellows — Lower Position Replacement for OEM 3852742 Applications

This aftermarket lower exhaust bellows is used to replace the lower exhaust hose on Volvo Penta sterndrive exhaust installations referenced to OEM 3852742, including 5.0L, 5.7L, 5.8L, 7.4L, 8.1L, and 8.2L engine designations.

It is a lower exhaust bellows rather than the upper exhaust hose or a complete exhaust-bellows service kit, and selection must match the exact OEM hose version rather than engine displacement alone.

Engine Applications

The engine designations below are associated with installations calling for the 3852742 lower exhaust bellows on Volvo Penta sterndrive systems. Because multiple exhaust hoses can appear under similar engine families, match the full engine designation, the lower installation position, and the required OEM part number before ordering.

• 5.0L FL, GL, GXI, OSI — Lower exhaust bellows application.Fits when specified: For installations calling for OEM 3852742 lower exhaust bellows.
• 5.7L GL, GI, GXI, GIL, GXIL, OSI, OSXI — Lower exhaust bellows application.Fits when specified: For installations calling for OEM 3852742 lower exhaust bellows.
• 5.8L FL, FSI — Lower exhaust bellows application.Fits when specified: For installations calling for OEM 3852742 lower exhaust bellows.
• 7.4L GL, GI, GSI — Lower exhaust bellows application.Fits when specified: For installations calling for OEM 3852742 lower exhaust bellows.
• 8.1L — Lower exhaust bellows application.Fits when specified: For installations calling for OEM 3852742 lower exhaust bellows.
• 8.2L GL, GSI — Lower exhaust bellows application.Fits when specified: For installations calling for OEM 3852742 lower exhaust bellows.

Reference Numbers

Reference numbers are provided for part identification and cross-checking only; they do not by themselves guarantee universal interchangeability across all hose versions or indicate manufacturer identity.

Supplied Parts

• Lower exhaust bellows

Supplied as an individual lower exhaust bellows, not a complete exhaust-bellows service kit or upper exhaust hose.

Service & Installation Notes

General service guidance only. Use the service manual for your exact engine and exhaust configuration.

1. Allow the engine and exhaust components to cool completely, shut off the system, and disconnect power as needed to prevent accidental starting before servicing.
2. Verify that the part being replaced is in the lower exhaust bellows position and matches the required OEM hose version before removing the existing hose.
3. Support connected exhaust pipes or elbows during disassembly, and clean the mating hose seating surfaces without damaging the sealing areas.
4. Seat and secure the new lower exhaust bellows according to the OEM service manual for your specific sterndrive exhaust layout.
5. Inspect the installation during initial operation and stop the engine immediately to check the connections if any exhaust leak or abnormal condition appears.

The Serdamarine Approach

Exhaust parts need a configuration match. Serdamarine focuses on marine exhaust manifolds and their related service parts. Application details, connection requirements and public reference numbers are presented together to support part selection.

Questions Before Replacement