21532258 Sealing Ring | Genuine Volvo Penta Part

🔧 Product Description

Sealing ring used at the crankcase ventilation/oil-separator connection on Volvo Penta D11, D13 and TAD9-TAD13 engines. It seals the separator, breather pipe, flange or pressure-hose connection against oil mist and crankcase vapour leakage. The current number replaces earlier seal 20493974.

🚤 Compatibility

• Engine Family: D, TAD

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta crankcase-breather sealing ring
• Current replacement for 20493974
• Used with oil-separator and breather-pipe assemblies
• Resistant to hot oil mist and crankcase vapour
• Engine type: Inline-six turbocharged marine and industrial diesel

🔌 Function

Seals the crankcase ventilation connection so separated oil and blow-by vapour remain within the designed breather circuit.

⚠️ Common Signs of Failure

• Oil mist or seepage around the separator connection
• Crankcase odour in the engine compartment
• Hardened, cut or flattened seal
• Increased oil contamination around the breather
• Air leakage affecting crankcase-pressure control

🛠️ Service Notes

• Always fit a new sealing ring rather than reusing the old one — a ring that has been compressed once has taken a set and will not seal reliably a second time
• Clean the groove or seat and check it for scoring, corrosion and old sealant before fitting; a mark across the sealing face will leak however good the ring is
• Ease the ring into place without stretching, twisting or dragging it over sharp edges or threads, and check it is seated squarely all the way round before closing the joint
• Do not add sealant or jointing compound unless the workshop manual for your engine calls for it, and tighten the joint or union to the figure given in that manual
• Check the joint for weeping once the engine has been run up to temperature and allowed to cool, as many sealing rings only show a leak after a heat cycle

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21532258 → Supersedes 20493974

OEM / Related Numbers

• 20493974 earlier number superseded by this part
• 7420493974 related reference

Other-Brand OEM Numbers

• VOE21532258
• VOE20493974

Aftermarket / Verified Equivalents

• Related Volvo-group number: 1547253
• Swedish Lorry Parts: replacement for 20493974 / 21532258

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C4-B MH, D13C1-B MH, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-M MP, D13B-C MP, D13C4-B MP, D13C5-B MP, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C1-B MG, D13C3-B MG, D13C2-B MG, D13C4-B MG, D13C5-A MP, D13C2-A MG, D13C1-A MG, D13C8-B MP
• Volvo Penta TAD1341-43GE-B, TAD1341VE, TAD1341GE
• Volvo Penta TAD1344-45GE-B, TAD1344VE, TAD1344GE
• Volvo Penta TAD1342VE, TAD1342GE
• Volvo Penta TAD1343VE, TAD1343GE
• Volvo Penta TAD1345GE, TAD1345VE
• Volvo Penta TAD1350GE, TAD1350VE
• Volvo Penta TAD1351GE, TAD1351-53VE
• Volvo Penta TAD1340VE
• Volvo Penta TAD1346GE
• Volvo Penta TAD1352GE
• Volvo Penta TAD1353GE
• Volvo Penta TAD1354GE
• Volvo Penta TAD1355GE
• Volvo Penta TAD1360-62VE
• Volvo Penta TAD1363-65VE
• Volvo Penta TAD1371-75VE
• Volvo Penta TAD1380-82GE
• Volvo Penta TAD1381-85VE