Volvo Penta TAMD73 TAMD74 TAMD75 TAMD162 Cooling System Sealing Ring 863231
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Part Details
- Part Number: 863231
- Brand: Volvo Penta
- Official Product Type: Cooling System Sealing Ring
- Supersedes: No confirmed superseding number on record
- Replaced By: 863231 is the current active part number
- Engine Family: Volvo Penta TAMD73, TAMD74, TAMD75 and TAMD162 heavy-duty marine diesel
- System: Engine cooling / seawater system — seals coolant and seawater tube connections at the seawater pump, aftercooler, and coolant-pipe assemblies. This is not a camshaft or oil seal.
- Assembly Note: Included in Volvo Penta 3838658 charge-air-cooler overhaul gasket kit on applicable TAMD74 engines
- Quantity Required: 1 per applicable diagram location
- Kit Contents: One sealing ring, supplied individually
Compatible Applications
Fitment is engine-model, assembly, and serial-number specific. Confirm 863231 against the seawater pump, aftercooler, or cooling-system schematic for the exact engine — this part appears in more than one cooling-system assembly, so the correct installation location depends on the engine configuration.
- TAMD73P-A
- TAMD73WJ-A
- TAMD74A • TAMD74A-A • TAMD74A-B
- TAMD74C-A • TAMD74C-B
- TAMD74L-A • TAMD74L-B
- TAMD74P-A • TAMD74P-B
- TAMD75P-A
- TAMD162A • TAMD162B • TAMD162C • TAMD162C-B
Serial Number Fitment Notice
Confirm the exact engine model, serial number, and cooling-system diagram before ordering. On TAMD74 and TAMD75 seawater-pump diagrams, 863231 is shown adjacent to the seawater-pump tube and gasket 864491. On aftercooler diagrams it is used at the cooler and tube connection. Match directly in the applicable schematic rather than by engine family alone.
Cooling System Assembly Context
On TAMD74 / TAMD75 seawater-pump and aftercooler assemblies, 863231 is shown alongside:
- 864491 — Gasket (seawater pump assembly)
- 3826297 / 3838144 — Seawater / cooling tube (application-dependent)
- 3829883 — Earlier related tube reference (selected configurations)
- 3838658 — Charge-air-cooler overhaul gasket kit (TAMD74 applications)
When This Part Needs Replacement
- Connected coolant or seawater tube is removed for any reason
- Ring is flattened, hardened, cracked, or distorted
- Coolant or seawater seepage visible at the tube connection
- Aftercooler or seawater-pump assembly is being resealed
- Adjacent gasket 864491 or associated tube is being replaced
- Routine cooling-system overhaul
Reusing a compressed sealing ring after disturbing the connection is a reliable cause of repeat coolant or seawater leakage.
Installation Notes
Clean the sealing surfaces and tube connection before fitting the new ring. Inspect the mating tube for corrosion or scoring — a damaged tube surface will prevent the new seal from seating properly. Replace adjacent gasket 864491 where required by the applicable Volvo Penta service procedure. Avoid twisting or pinching the ring during assembly. Pressure-check the cooling circuit or inspect carefully after startup for any seepage at the serviced connection.
Related Parts
- 864491 — Seawater pump gasket
- 3826297 — Seawater / cooling tube
- 3838144 — Cooling tube (later reference)
- 3829883 — Earlier tube reference (selected applications)
- 3838658 — Charge-air-cooler overhaul gasket kit (TAMD74)
- TAMD74 Seawater Pump
- TAMD74 Aftercooler / Charge-Air Cooler
Parts Desk Insight
The most important correction on this part is its location: 863231 is a cooling-system sealing ring, not a camshaft or oil seal. Volvo Penta diagrams place it in the seawater pump and aftercooler plumbing on TAMD73, TAMD74, TAMD75, and TAMD162 engines — a completely different system. If you’re ordering for a camshaft or cylinder-head oil leak, this is not the right part. Confirm the assembly location in the cooling-system schematic before ordering. When replacing the seawater-pump assembly on these engines, it’s worth doing the gasket (864491) and sealing ring together at the same service — both are low-cost and the labour to come back in is the same job twice.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
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Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
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