21543178 Pipe Connection | Genuine Volvo Penta Part

🔧 Product Description

A pipe connection used in the heat-exchanger and raw-water cooling assembly of the Volvo Penta D13B-E MG (FE). It joins the designated water pipe to heat exchanger 21404010 and seals with the original O-ring or gasket arrangement.

🚤 Compatibility

Typically suits:

• Volvo Penta D13B-E MG
• Volvo Penta D13B-E MG (FE)
• Volvo Penta D13C1-B MG
• Volvo Penta D13C3-B MG
• Volvo Penta D13C1-A MG
• Volvo Penta D13B-N MH
• Volvo Penta D13C1-A MH
• Volvo Penta D13C3-B MH
• Volvo Penta D13C1-B MH

• Engine Family: D

⚙️ Key Features

• Genuine Volvo Penta cooling-system connection
• Designed for D13B-E MG raw-water service
• Correct factory thread and sealing seat
• Works with the original heat exchanger and water pipes
• Engine type: 12.8 L inline-six turbocharged marine generating-set diesel

🔌 Function

Provides the sealed transition between the heat exchanger and the adjoining raw-water or coolant pipe.

⚠️ Common Signs of Failure

• Seawater or coolant leakage
• Corroded or damaged threads
• Repeated O-ring or gasket failure
• Restricted cooling-water flow
• Connection movement caused by damaged supports

🛠️ Service Notes

• Clean the threads and sealing face in the housing, and check the bore of the connection is clear before fitting
• Fit a new sealing washer, O-ring or gasket, and where a tapered thread is used seal it with the product the manual specifies rather than winding tape onto a fuel, oil or hydraulic joint
• Hold the connection at the correct angle for the pipe run as it is tightened, so the pipe meets it squarely instead of being sprung into place
• Tighten to the figure in the workshop manual, and do not try to cure a weep by pulling the joint up harder — strip it and look at the sealing face
• Pressure-test or run the system and check for weeping before closing up access, then check the joint again after the first period of running

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21404010 - heat exchanger
• 21247896 - water pipe
• 975675 - O-ring
• 21331356 and 21331358 - overflow-valve references
• 21581591 - water pipe
• 823661 - zinc anode
• 949918 - shut-off cock
• 823662 - plug
• 3889475 - water pipe
• 863209 - seal
• 21471533 and 23052336 - water-pipe references

📦 Condition

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