21244928 Sealing Ring | Genuine Volvo Penta Part

🔧 Product Description

A large sealing ring used between the charge-air cooler core and end tank on selected D13 and D16 marine engines. Two rings are commonly required per cooler.

🚤 Compatibility

• Engine Family: D, TWD

Full model list at the end of this description.

⚙️ Key Features

• Used between cooler core and end tank
• Commonly two required per cooler
• Resistant to boost pressure, coolant and heat
• Direct replacement where part number 21244928 is specified
• Engine type: D13 or D16 turbocharged marine diesel

🔌 Function

Seals boost air and cooling-medium passages at the charge-air cooler end tanks.

⚠️ Common Signs of Failure

• Boost leakage or hissing
• Oil mist around the cooler joint
• Flattened, cracked or extruded sealing ring

🛠️ 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

• 21244928 → Supersedes 3812771

OEM / Related Numbers

• 3812771 earlier number superseded by this part
• 21227314 - cooler core
• 22832882, 21922701, 21922704, 3889640 and 24159274 - charge-air coolers
• 21250767 - cellular-plastic seal
• 22832883 and 22832884 - hoses
• 22274885 - clamp

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C3-B MH, D13C2-B MP, 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, D13C5-A MP, D13C2-A MG, D13C1-A MG, D13C7-B MP, D13C8-B MP
• Volvo Penta D16C1-E MG, D16C1-F MG, D16C2-E MG, D16C2-F MG, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
• Volvo Penta TWD1643GE
• Volvo Penta TWD1644-45GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TWD1663GE
• Volvo Penta TWD1672-1673GE
• Volvo Penta TWD1682-83GE
• Volvo Penta TWD1683GE-B
• Volvo Penta TWD1744GE