20530103 Valve Seat | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta valve seat is an OEM service component used in the Cylinder-Head Exhaust Valve Seat. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo Penta/Volvo 13-litre D13/TAD13 diesel application. Technical identification: Exhaust-valve seat ring for the D13 cylinder head; documented aftermarket interchange includes 20541405. In service, it provides the hardened, gas-tight seating surface required for compression and combustion sealing at the specified inlet or exhaust valve. Selection must be confirmed by OEM part number 20530103, the exact model/product number, serial number and installed assembly configuration.

🚤 Compatibility

• Engine Family: D, TAD
• Serial Range: SN-2013429458

Full model list at the end of this description.

⚙️ Key Features

• OEM part number 20530103
• Technical distinction: Exhaust-valve seat ring for the D13 cylinder head; documented aftermarket interchange includes 20541405
• 12 used per assembly

🔌 Function

Provides the hardened, gas-tight seating surface required for compression and combustion sealing at the specified inlet or exhaust valve. Inspect all matched valve-train parts, lubricate contact surfaces, set valve recession/clearance where applicable and recheck after initial operation.

⚠️ Common Signs of Failure

• Low cylinder compression or leakage during a leak-down test
• Hard starting, misfire or uneven running
• Loss of power, high exhaust temperature or excessive smoke
• Burned, recessed, cracked or pitted valve/seat surfaces
• Incorrect valve clearance or repeat leakage caused by guide/head wear

🛠️ Service Notes

• Seat inserts are an interference fit in the head, so the counterbore has to be clean, round, flat and square before a new seat goes in; normal practice is to chill the insert and warm the head so it drops into place rather than forcing it
• This is machine-shop work — the seat must be cut concentric with the valve guide after installation, so check or renew the guides at the same time and cut the seat angles once the insert is secure
• Inspect the head casting for cracks and for a pounded or spread counterbore before committing to a new seat; a seat that has come loose has usually damaged its pocket
• Use the interference fit, insert size and seat angles specified for your engine rather than any general figure, as they differ between heads
• Check each valve on its finished seat for an even contact band right the way round, and confirm valve position and any permitted recession against the workshop manual for your engine

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20530103 → Supersedes 20541405

OEM / Related Numbers

• 20541405 earlier number superseded by this part

Other-Brand OEM Numbers

• TRW Engine Component: 92-47029
• MAHLE: 209 SA 32131 000

Aftermarket / Verified Equivalents

• DT Spare Parts: 2.10587
• FEBI Bilstein: 180474
• Freccia: VS08-103
• TBT: 87-5158
• Well-Tite: W-5118
• AE: VS6601
• OE Germany: 03 0123 D13001

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 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, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C5-A MP, D13C2-A MG, D13C1-A MG
• Volvo Penta TAD1341VE, TAD1341GE
• Volvo Penta TAD1342VE, TAD1342GE
• Volvo Penta TAD1343VE, TAD1343GE
• Volvo Penta TAD1344VE, TAD1344GE
• Volvo Penta TAD1345GE, TAD1345VE
• Volvo Penta TAD1350GE, TAD1350VE
• Volvo Penta TAD1351GE, TAD1351-53VE
• Volvo Penta TAD1340VE
• Volvo Penta TAD1352GE
• Volvo Penta TAD1353GE
• Volvo Penta TAD1354GE
• Volvo Penta TAD1355GE
• Volvo Penta TAD1360-62VE
• Volvo Penta TAD1363-65VE
• Volvo Penta TAD1371-75VE