20405595 Gasket | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta sealing gasket used at the turbocharger oil-feed banjo connection on Stage 1 / Tier 1 D5 and D7 turbo systems. It seals hollow screw 25167 and oil line 20405596 or the matching application-specific feed line.

🚤 Compatibility

• Engine Family: D, TD, TAD, MD

Full model list at the end of this description.

⚙️ Key Features

• Oil-resistant banjo sealing gasket
• Used at the turbocharger lubricating-oil feed connection
• Works with hollow screw 25167
• Confirmed in TD520GE and TD720GE turbo arrangements
• Should be replaced whenever the hollow screw is loosened
• Engine type: Volvo Penta turbocharged industrial diesel

🔌 Function

Seals the hollow-screw connection supplying pressurised engine oil to the turbocharger bearings.

⚠️ Common Signs of Failure

• Engine-oil leakage at the banjo joint
• Low oil supply to the turbocharger
• Burnt or flattened gasket
• Turbo bearing damage
• Oil spray around the exhaust manifold

🛠️ Service Notes

• Fit a new gasket every time the joint is disturbed — a gasket takes a permanent set once it has been torqued and will not seal reliably a second time
• Scrape both faces back to clean bare metal, keeping the blade at a shallow angle so it lifts the old material without gouging the surface, and use a plastic scraper on aluminium castings
• Check the faces for flatness, cracks and corrosion pitting, and make sure no old gasket, carbon or hardened sealant is left in the corners or around the bolt holes
• Fit the gasket dry unless the workshop manual for your engine calls for a sealant, and then only the type it specifies — surplus sealant squeezes out into oil, coolant and fuel passages
• Draw the fasteners down progressively in the sequence and to the torque given in the manual for your engine, and recheck after the first heat cycle where the manual asks for it

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20405595 → Supersedes 11700556

OEM / Related Numbers

• 11700556 earlier number superseded by this part
• 25167 - hollow screw
• 20405596 - TD520GE oil line
• 969011 - companion sealing gaskets

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA
• Volvo Penta D5A-B TA, D5A-T, D5A-TA
• Volvo Penta MD2010, MD2010B
• Volvo Penta TAD520GE, TAD520VE
• Volvo Penta TAD720GE, TAD720VE
• Volvo Penta TAD730GE MECH, TAD730GE EDC4
• Volvo Penta TAD731GE MECH, TAD731GE EDC4
• Volvo Penta TD520GE, TD520VE
• Volvo Penta TD720GE, TD720VE PP
• Volvo Penta TAD721VE