20555025 Plug | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta plug is an OEM service component used in the Inlet / Exhaust Closure Plug. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo D5A industrial diesel application. Technical identification: Threaded closure plug for a machined gallery or housing. In service, it closes the specified machined opening or service port and retains the circuit fluid or pressure. Selection must be confirmed by OEM part number 20555025, the exact model/product number, serial number and installed assembly configuration.

🚤 Compatibility

• Engine Family: D
• HP Range: 280-480 HP

Full model list at the end of this description.

⚙️ Key Features

• OEM part number 20555025
• Technical distinction: Threaded closure plug for a machined gallery or housing

🔌 Function

Closes the specified machined opening or service port and retains the circuit fluid or pressure. Confirm dimensions, thread and strength class, inspect mating threads/contact faces and tighten to the Volvo Penta torque and locking specification.

⚠️ Common Signs of Failure

• Fluid weeping from the plugged gallery or housing opening
• A wet trail or drip below the plug
• Pressure or level falling with no other visible leak
• The plug found loose or backed out of its thread
• On removal, a corroded sealing face or damaged threads

🛠️ Service Notes

• Supersedes 3838309

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20555025 → Supersedes 3838309

OEM / Related Numbers

• 3838309 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-330I-D, D6-310I-B, D6-280I-B, D6-280I-C, D6-280I-D, D6-280I-E, D6-310I-D, D6-435I-D, D6-310I-E, D6-280I-A, D6-310I-A, D6-300I-F, D6-370I-A, D6-370I-B, D6-330I-B, D6-330I-C, D6-370I-C, D6-370I-D, D6-310I-C, D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G, D6-330I-F, D6-370I-F, D6-435I-A, D6-435I-C, D6-435I-E, D6-435I-F, D6-330I-E, D6-370I-E