20405886 Seal | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Fuel Injector / Cylinder Head Seal - Part Number: 20405886

Genuine Volvo Penta seal fitted around the injector or injector bore in the D5 and D7 cylinder head. Four seals are used on four-cylinder engines and six on six-cylinder engines to isolate the injector passage and prevent fluid or combustion contamination.

⚙️ Key Features

• Injector-bore sealing component

• Four used on D5 four-cylinder heads and six on D7 six-cylinder heads

• Confirmed in the cylinder-head and injector assemblies

• Used beside cylinder-head gallery plugs 20405895

• Should be renewed whenever the injector or cylinder head is overhauled

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20405886 - current Volvo Penta injector / cylinder-head seal reference

OEM / Related Numbers:

• 20405895 - related cylinder-head plugs

• 947628 - related plug gaskets

• 20405500 - cylinder head

• 20502189 / 3803948 - related injectors

• 20405851 / 20524235 - related nozzle references

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D5 / D7 cylinder-head and injector assemblies

Typically suits:

• Engine / equipment models:

• TD520GE

• TAD530GE

• TAD531GE

• TAD532GE

• TD720GE

• TAD730GE

• TAD731GE

• TAD732GE

• TAD733GE

• D5A-T

• D5A-TA

• D5A-B TA

• D7A-T

• D7A-TA

• D7A-B TA

• D7C-TA

• D7C-B TA

• Engine Type: Volvo Penta four- and six-cylinder industrial diesel

• Year / Serial Range: Cylinder-head and injector version dependent

🔌 Function

Seals the injector or injector-bore interface within the cylinder head.

Common signs of failure:

• Fuel, oil or coolant contamination around the injector bore

• Combustion leakage or soot around an injector

• Seal hardened, split or displaced

• Injector difficult to remove due to corrosion

• Repeated leakage after injector replacement

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging