1580973 Plug | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta plug is an electrical connection, retention or switch-mounting component used in the electrical connector sealing or closure. It is manufactured to the original Volvo Penta dimensions and interface requirements so the terminals, locking features and environmental protection remain correct. In service, it closes or completes the specified electrical connector cavity to maintain retention and environmental protection. Fitment is controlled by the exact engine or product configuration and serialised parts list; confirm OEM number 1580973 against the installed assembly before ordering.

⚙️ Key Features

• OEM Volvo Penta part number 1580973
• System group: Engine
• Net weight: 0.001 kg
• Supersedes and replaces former part number 273709 (previously listed as an insulating kit)
• Applies to the TD70G marine diesel engine

🔌 Function

The plug closes off and seals an opening in the engine assembly, keeping fluids or contaminants from passing through and providing electrical insulation where required. It maintains the integrity of the port or aperture it occupies until service access is needed.

⚠️ Common Signs of Failure

• Weeping, seepage or visible fluid loss around the plug seat
• Corrosion, pitting or degradation of the plug body
• Loose or backed-out fit allowing pressure loss
• Cracking, splitting or hardening from heat and age
• Damage to the plug during previous removal preventing a proper reseal

🛠️ 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 Supersession Chain

• 1580973 → Supersedes 273709

OEM / Related Numbers

• 273709 earlier number superseded by this part

📦 Condition

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