Description

Volvo Penta 18818 is a genuine OEM gasket used in selected Volvo Penta marine applications. Volvo Penta’s official parts shop identifies part number 18818 simply as Gasket, and current dealer references present it as an active genuine Volvo Penta service part.

Current aftermarket reference material also associates 18818 with a drain plug sealing washer / crush-style gasket application on certain older Volvo Penta diesel use cases, including D70B-related service references. That makes it the correct style of replacement when the service point calls for the original Volvo Penta sealing gasket rather than reusing an old compressed washer.

Key Features

• Genuine Volvo Penta OEM gasket
• Part number: 18818
• Official Volvo Penta description: Gasket
• Small service sealing component for selected applications
• Approximate listed weight: 0.004 kg on current dealer references

Engine Compatibility
Current public source coverage for 18818 is limited, but available reference material connects this gasket to selected older Volvo Penta diesel service applications, including D70B-related drain plug sealing references. Because public compatibility charts for this small gasket are not broad or consistent, fitment should be confirmed by engine serial number and by the exact service point being repaired.

Serial Number Fitment Notice
Fitment should always be confirmed by engine serial number before ordering. Volvo Penta’s official parts guidance directs users to identify the exact engine, shield, or drive to locate the correct replacement part.

When This Part Needs Replacement
Replace this gasket when:

• the related drain plug or sealing point is being serviced
• the original gasket has been compressed or deformed
• oil seepage or sealing loss is present
• routine maintenance calls for a fresh sealing washer rather than reusing the old one

Installation Notes

• Confirm the exact application by serial number first.
• Match the old gasket to the service point before installation.
• Install on clean sealing surfaces.
• Replace the old compressed gasket with a fresh one during reassembly for a more reliable seal.

Alternate/Superseded Part Numbers
Current sources identify 18818 as the active Volvo Penta part number. Current reviewed references do not show a confirmed Volvo Penta supersession for this part.

Parts Desk Insight
Small sealing gaskets like this are easy to overlook, but they often decide whether a routine service stays dry afterward. Replacing a low-cost crush-style gasket during service is usually the cleaner move than trying to reuse one that has already been compressed once.