21677248 Cover | Genuine Volvo Penta Part

🔧 Product Description

A genuine cover used over a coolant duct in selected Volvo Penta D13, TAD13 and related cylinder-block assemblies. It closes the machined coolant passage and works with the specified gasket, plug and sealing hardware.

🚤 Compatibility

• Engine Family: D, TAD
• HP Range: Approximately 0-500 HP
• Year Range: Approximately 2009 - 2021
• Serial Range: SN2013304956-

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta coolant-duct cover
• Factory-machined sealing and mounting surfaces
• Used with cylinder-block coolant passages
• Direct replacement for a corroded or distorted original cover
• Engine type: 12.8L inline six-cylinder turbocharged diesel
• Also supersedes Volvo part numbers 20739884, 21121486 and 3849016

🔌 Function

Closes the cylinder-block coolant duct and maintains cooling-system pressure and flow routing.

⚠️ Common Signs of Failure

• Coolant leakage around the cover
• Recurring gasket failure
• Overheating after coolant loss

🛠️ Service Notes

• Clean both sealing faces back to clean metal and check the cover for distortion, cracks or pulled bolt holes before refitting — a warped flange will not seal even with a new gasket
• Where the joint uses a gasket, seal or O-ring, always fit a new one and seat it dry unless the workshop manual for your engine specifies a sealant; never try to make a poor joint tight with extra sealant
• Tighten the fasteners progressively and evenly, working out from the centre, to the figure given in the manual for your engine — pressed steel, alloy and plastic covers distort easily if pulled down hard or unevenly
• If the cover carries a shaft seal or bearing, support it square to the shaft as it goes on so the seal lip is not nicked or rolled over
• Check that any breather, drain or oil return passage in the cover is clear before final tightening, and look for leaks once the engine has been run up to temperature

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21677248 → Supersedes 20979871

OEM / Related Numbers

• 21420523 earlier number superseded by this part
• 20993042 - cylinder-block references
• 23489240 - cylinder-block references
• 21666520 - coolant-duct plug
• 21024032 - sealing ring
• 21294062 - gasket
• 20979871 - seal
• 21046528 - clamp
• 20532891 - gasket

📦 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, D13C1-A MH, D13C2-A MH, D13C5-A MP, D13C2-A MG, D13C1-A MG
• 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