• 21780376 Sealing Ring | Genuine Volvo Penta Part
  • 21780376 Sealing Ring | Genuine Volvo Penta Part - photo 2 of 2
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21780376 Sealing Ring | Genuine Volvo Penta Part

21780376 Sealing Ring | Genuine Volvo Penta Part

$7.66 AUD
$7.66 AUD
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In stock — Australian warehouse

Typically reaches our store in 2–3 business days

Availability checked daily with Volvo Penta

✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide

🔧 Product Description

Specification-controlled sealing ring for the assigned Volvo Penta joint. Cross-section, material and diameter are selected for the working fluid, pressure and temperature.

🚤 Compatibility

  • Engine Family: D, TAD, TWD, TADH

Full model list at the end of this description.

⚙️ Key Features

  • Application-specific material
  • Correct cross-section and diameter
  • Resists the assigned fluid and temperature
  • Designed for the original groove
  • Install clean and undamaged
  • Quantity varies by assembly, most commonly one

🔌 Function

Prevents fluid, gas or pressure leakage at the specified joint.

⚠️ Common Signs of Failure

  • Flattening or permanent compression set
  • Cracking, hardening or swelling
  • Cuts or twisting during installation
  • Extrusion from the sealing groove

🛠️ 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

  • 21780376 → Supersedes 20555696

OEM / Related Numbers

  • 20555696 earlier number superseded by this part
  • 421629 referenced in the part notes

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

  • Volvo Penta D13C3-B MH, D13C1-B MH, D13C4-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, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C5-A MP, D13C2-A MG, D13C1-A MG
  • Volvo Penta D16C-A MG, D16C-A MH, D16C-B MH, D16C-C MH, D16C1-E MG, D16C1-F MG, D16C2-E MG, D16C2-F MG, D16C-D MH, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
  • Volvo Penta D11B3-A MP, D11B4-A MP, D11A-A, D11A-B, D11A-C, D11A-E, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-C (IPS), D11B1-A MP
  • Volvo Penta D9A2L MH, D9A2M MP, D9A2A, D9A2C
  • Volvo Penta TAD1640-42GE-B, TAD1640GE, TAD1640VE-B, TAD1640-42VE-C
  • Volvo Penta TAD1341-43GE-B, TAD1341VE, TAD1341GE
  • Volvo Penta TAD1344-45GE-B, TAD1344VE, TAD1344GE
  • Volvo Penta TAD1641VE-B, TAD1641GE, TAD1641VE
  • Volvo Penta TAD1642VE-B, TAD1642GE, TAD1642VE
  • Volvo Penta TAD1650VE-B/51VE, TAD1650GE, TAD1650VE
  • Volvo Penta TAD840GE, TAD840-43VE, TAD840GE-B
  • Volvo Penta TAD1342VE, TAD1342GE
  • Volvo Penta TAD1343VE, TAD1343GE
  • Volvo Penta TAD1345GE, TAD1345VE
  • Volvo Penta TAD1350GE, TAD1350VE
  • Volvo Penta TAD1351GE, TAD1351-53VE
  • Volvo Penta TAD1643VE-B, TAD1643VE
  • Volvo Penta TAD570-72VE, TAD570-71VE-B
  • Volvo Penta TAD880-82GE, TAD880-84VE
  • Volvo Penta TAD940GE, TAD940VE
  • Volvo Penta TAD941VE, TAD941GE
  • Volvo Penta TADH880-82GE, TADH880-84VE
  • Volvo Penta TWD1683GE-B, TWD1683VE
  • Volvo Penta TAD1140-42VE
  • Volvo Penta TAD1150-52VE
  • Volvo Penta TAD1170-72VE
  • Volvo Penta TAD1180-83VE
  • 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
  • Volvo Penta TAD1380-82GE
  • Volvo Penta TAD1381-85VE
  • Volvo Penta TAD1384-85VE-IWP
  • Volvo Penta TAD1651GE
  • Volvo Penta TAD1660-62VE
  • Volvo Penta TAD1662VE EU5
  • Volvo Penta TAD1670-72VE
  • Volvo Penta TAD540-42VE
  • Volvo Penta TAD550-51VE
  • Volvo Penta TAD552VE
  • Volvo Penta TAD580-83VE
  • Volvo Penta TAD841-43GE
  • Volvo Penta TAD850-52VE
  • Volvo Penta TAD851-53GE
  • Volvo Penta TAD853VE
  • Volvo Penta TAD870-73VE
  • Volvo Penta TAD942VE
  • Volvo Penta TAD950VE
  • Volvo Penta TAD951VE
  • Volvo Penta TAD952VE
  • Volvo Penta TWD1643GE
  • Volvo Penta TWD1644-45GE
  • Volvo Penta TWD1652GE
  • Volvo Penta TWD1653GE
  • Volvo Penta TWD1663GE
  • Volvo Penta TWD1672-1673GE
  • Volvo Penta TWD1682-83GE

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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