21379280 Cover | Genuine Volvo Penta Part

🔧 Product Description

Genuine replacement cover fitted to the coolant-pump and thermostat-housing assembly on selected Volvo Penta D13 marine engines equipped with the RC cooling configuration. The cover is manufactured to match the original housing dimensions, sealing surface and mounting pattern for correct coolant-system sealing and dependable operation.

🚤 Compatibility

Typically suits:

• Volvo Penta D13C4-B MH
• Volvo Penta D13C1-B MH
• Volvo Penta D13B-E MG
• Volvo Penta D13B-E MG (FE)
• Volvo Penta D13B-F MG
• Volvo Penta D13B-F MG (FE)
• Volvo Penta D13C2-A MH
• Volvo Penta D13C2-B MG
• Volvo Penta D13C4-B MG
• Volvo Penta D13C2-A MG
• Volvo Penta D13C1-A MG

• Engine Family: D

⚙️ Key Features

• Genuine Volvo Penta cooling-system component
• Designed for engines equipped with the RC cooling configuration
• Installs on the coolant-pump and thermostat-housing assembly
• Correct OEM mounting pattern and sealing-face dimensions
• Suitable for marine auxiliary, genset and commercial D13 installations
• Engine type: 12.8-litre inline 6-cylinder turbocharged marine diesel

🔌 Function

The cover closes and seals the applicable section of the coolant-pump and thermostat-housing assembly. It helps contain pressurised engine coolant and protects the internal coolant passages from contamination and external damage.

⚠️ Common Signs of Failure

• Coolant seepage around the cover or mounting face
• Corrosion or pitting around the sealing surface
• Cracking caused by freezing, impact or excessive tightening
• Cooling-system pressure loss
• Recurring coolant loss after replacing nearby seals
• Distortion preventing correct gasket or sealing-ring compression

🛠️ 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 / Related Numbers

• 984733 - Associated flange screw
• 21412639 - Associated thermostat
• 3594798 - Associated water pipe
• 1547255 - Associated sealing ring
• 21546204 - Associated air-vent pipe

📦 Condition

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