20704130 Plug | Genuine Volvo Penta Part

🔧 Product Description

A genuine small service plug used in a Volvo Penta engine connection or component opening. Published records do not safely identify one universal circuit, so the complete engine serial number and schematic position must be used to confirm its application.

⚙️ Key Features

• Compact OEM closure for the assigned connector, housing or service opening
• Dimensions and retention profile are specific to the catalogued position
• Prevents contamination and accidental contact at the closed opening
• Suitable for electrical, fuel-system or engine-service configurations only where 20704130 is specified
• Must not be substituted by a visually similar plug with a different sealing or locking profile
• Supplied as the plug only

🔌 Function

Closes and protects the designated opening or connection point.

⚠️ Common Signs of Failure

• The plug is cracked, loose or missing
• The locking tabs or sealing edge are damaged
• Dirt, water or oil enters the opening
• The plug repeatedly works loose under vibration
• Replacement is required after removal if secure retention cannot be restored

🛠️ Service Notes

• Clean the threads and the seating face before fitting, and make sure the opening itself is clear of old sealant, swarf and corrosion
• Renew the sealing washer or O-ring where one is fitted rather than reusing a flattened one, and only use thread sealant where the workshop manual for your engine calls for it
• Tighten to the figure given in the workshop manual for your engine — plugs in aluminium and other soft castings strip easily, and a plug pulled up hard to cure a leak usually distorts the seat and makes it worse
• Where the plug closes an oil, fuel or coolant passage, run the engine up to temperature afterwards and check the joint under pressure before signing the job off
• Keep removed plugs paired with the holes they came out of during a strip-down — plugs of very similar appearance often differ in thread, reach or sealing type

🔄 Supersession & Cross Reference

OEM / Related Numbers

• Product group 2520 / function group 2349 - catalogue classification; exact circuit remains serial controlled

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging