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946778 Cap Plug | Genuine Volvo Penta Part
946778 Cap Plug | Genuine Volvo Penta Part
Regular price
$10.11 AUD
Regular price
Sale price
$10.11 AUD
Shipping calculated at checkout.
Quantity
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In stock — Australian warehouse
Typically reaches our store in 3–5 business days
Availability checked daily with Volvo Penta
✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide
🔧 Product Description
Genuine Volvo Penta cap plug, 17.5 mm in diameter, listed for 351 applications across the D, MD, TMD, TD, AQD and TAD series. It supersedes 86215 and 955084. The diameter is what selects it — cap plug 946779, also here, has no published diameter and covers a different 115-application group.
🚤 Compatibility
- Engine Family: D, MD, TMD, TD, AQD, TAD, AQ, TWD, TID, TAMD, THD, THAMD, BB, DH
Full model list at the end of this description.
⚙️ Key Features
- 17.5 mm in diameter
- Supersedes 86215 and 955084
- 351 applications across D, MD, TMD, TD, AQD and TAD series engines
- 17.5mm (Volvo assembly listing)
- Quantity varies by assembly, most commonly one
🔌 Function
Blanks off an open port or drilling, keeping dirt and water out.
⚠️ Common Signs of Failure
- Plug pushed out, missing or found loose in the bilge
- Seeping or weeping from the blanked port
- Plug hardened, split or gone brittle
- Bore or spigot corroded so the plug no longer grips
🛠️ Service Notes
- Measure the bore before ordering — 17.5 mm is what distinguishes this one from 946779
- Check the bore for corrosion; a pitted bore will push a new plug out again
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 946778 → Supersedes 86215
OEM / Related Numbers
- 955084 earlier number superseded by this part
- 86215 earlier number superseded by this part
📦 Condition
- Genuine Volvo Penta part
- Brand new
- Supplied in original or equivalent packaging
🔎 Full Model Compatibility
Typically suits:
- Volvo Penta 2003, 2003R, 2003R SOLAS, 2003TB, 2003TB SOLAS, 230A, 230B, 250A, 250B, 2001AG, 2001B, 2001BG, 2001D, 2003D, 2003T, 2003TR, 2002AG, 2002B, 2002BG, 2002D, 2003B, 2003B SOLAS, 2003 SOLAS, 2001, 2002, 2001R
- Volvo Penta D12C-A MP, D12D-A MG, D12D-A MH, D12D-A MP, D12D-B MH, D12D-B MP, D12D-C MH, D12D-C MP, D12D-D MP, D12D-E MG, D12D-E MH, D12D-E MP, D12D-F MP, D12D-G MH, D12D-G MP, D12D-H MP
- Volvo Penta D11C1-A MP, D11C3-A MP, D11C2-A MP, D11C4-A MP, D11B3-A MP, D11B4-A MP, D11A-A, D11A-B, D11A-C, D11A-E, D11B2-A MP, D11A-C MP, D11A-D MP, D11B1-A MP
- Volvo Penta TD100AHC, TD100ARC, TD100G-85, TD100A, TD100CHC, TD100G, TD100GG, TD100GGP, TD100HP, TD100HPB, TD100GG-85, TD100GP, TD100GP-85, TD100CRC
- Volvo Penta D9A2J, D9A2G, D9A2L MH, D9A2D, D9A2B, D9A2F, D9A2K, D9A2H, D9A2M MP, D9A2A, D9A2C, D9A2E
- Volvo Penta TD120C, TD120A, TD120G, TD120GG PP, TD120HP, TD120HPP, TD120GG, TD120AHC, TD120ARC, TD120BHC, TD120BRC
- Volvo Penta TID121KG, TID121KGP, TID121KP, TID121LG, TID121LGP, TID121LP, TID121FG, TID121K, TID121K-87
- Volvo Penta TD121G-87, TD121GGP-87, TD121G, TD121GG, TD121GGP, TD121GP, TD121CHC, TD121CRC
- Volvo Penta TID100KG, TID100KGP, TID100K, TID100K-87, TID100KGP-87, TID100KP, TID100KP-87, TID100KPB-87
- Volvo Penta TAMD74P-A, TAMD74P-B, TAMD74A, TAMD74C-A, TAMD74C-B, TAMD74L-A, TAMD74L-B
- Volvo Penta TD61A, TD61ACE, TD61AG, TD61AGP, TD61AP, TD61APB, TD61AW
- Volvo Penta TD71A, TD71ACE, TD71AG, TD71AGP, TD71AP, TD71APB, TD71AW
- Volvo Penta TAMD122A, TAMD122A/C, TAMD122D, TAMD122P-A, TAMD122P-B, TAMD122P-C
- Volvo Penta AQD70B, AQD70BL, AQD70CL, AQD70D, AQD70C
- Volvo Penta D16C-A MG, D16C-A MH, D16C-B MH, D16C-C MH, D16C-D MH
- Volvo Penta TAD1030P, TAD1030G, TAD1030GE, TAD1030V, TAD1030VE
- Volvo Penta TAMD162C-C, TAMD162A, TAMD162B, TAMD162C, TAMD162C-B
- Volvo Penta TD70CHC, TD70CRC, TD70G, TD70B, TD70G-83
- Volvo Penta TID71A, TID71AG, TID71AGP, TID71AP, TID71APB
- Volvo Penta AQ131A, AQ131B, AQ131C, AQ131D
- Volvo Penta D100A, D100BHC, D100BRC, D100B
- Volvo Penta TAMD70B, TAMD70E, TAMD70C, TAMD70D
- Volvo Penta TID162AG, TID162AGP, TID162AP, TID162APB
- Volvo Penta TWD710G, TWD710P, TWD710PB, TWD710V
- Volvo Penta AQ151A, AQ151B, AQ151C
- Volvo Penta D70CHC, D70CRC, D70B
- Volvo Penta MD100A, MD100B, MD100B-CC
- Volvo Penta TAD120AHC, TAD120BHC, TAD120CHC
- Volvo Penta TAD1241GE, TAD1241VE, TAD1241-42VE
- Volvo Penta TAD1630G, TAD1630GE, TAD1630P
- Volvo Penta TAD1641VE-B, TAD1641GE, TAD1641VE
- Volvo Penta TAD1642VE-B, TAD1642GE, TAD1642VE
- Volvo Penta TAD1650VE-B/51VE, TAD1650GE, TAD1650VE
- Volvo Penta TAD730G, TAD730P, TAD730V
- Volvo Penta TAMD165A, TAMD165C, TAMD165P
- Volvo Penta TAMD72A, TAMD72P-A, TAMD72WJ-A
- Volvo Penta THD102KB, THD102KD, THD102K-KB
- Volvo Penta TWD1210G, TWD1210P, TWD1210V
- Volvo Penta TWD1211V, TWD1211P, TWD1211G
- Volvo Penta TWD1630G, TWD1630P, TWD1630V
- Volvo Penta AQ125B, AQ125A
- Volvo Penta AQ145B, AQ145A
- Volvo Penta MD70B, MD70C
- Volvo Penta TAD1031G, TAD1031GE
- Volvo Penta TAD1230G, TAD1230V
- Volvo Penta TAD1242GE, TAD1242VE
- Volvo Penta TAD1250VE, TAD1250-52VE
- Volvo Penta TAD1631GE, TAD1631G
- Volvo Penta TAD1640GE, TAD1640VE-B
- Volvo Penta TAD1643VE-B, TAD1643VE
- Volvo Penta TAD940GE, TAD940VE
- Volvo Penta TAD941VE, TAD941GE
- Volvo Penta TAMD102A, TAMD102D
- Volvo Penta TAMD120A, TAMD120B
- Volvo Penta TAMD163A-A, TAMD163P-A
- Volvo Penta TAMD71B, TAMD71A
- Volvo Penta TAMD73P-A, TAMD73WJ-A
- Volvo Penta TD730ME, TD730VE
- Volvo Penta THAMD70C, THAMD70B
- Volvo Penta TID120FG, TID120HPP
- Volvo Penta TID61AG, TID61AGP
- Volvo Penta TMD100A, TMD100C
- Volvo Penta TMD120A, TMD120B
- Volvo Penta TMD70C, TMD70B
- Volvo Penta TWD1230ME, TWD1230VE
- Volvo Penta TWD740GE, TWD740VE
- Volvo Penta AQ120B
- Volvo Penta AQ140A
- Volvo Penta BB140A
- Volvo Penta BB145A
- Volvo Penta D120A
- Volvo Penta D2003AG
- Volvo Penta DH10A
- Volvo Penta MD120A
- Volvo Penta TAD1032GE
- Volvo Penta TAD1140-42VE
- Volvo Penta TAD1150-52VE
- Volvo Penta TAD1170-72VE
- Volvo Penta TAD121CHC
- Volvo Penta TAD1231GE
- Volvo Penta TAD1232GE
- Volvo Penta TAD1240GE
- Volvo Penta TAD1251VE
- Volvo Penta TAD1252VE
- Volvo Penta TAD1651GE
- Volvo Penta TAD1660-62VE
- Volvo Penta TAD1662VE EU5
- Volvo Penta TAD1670-72VE
- Volvo Penta TAD740GE
- Volvo Penta TAD741GE
- Volvo Penta TAD942VE
- Volvo Penta TAD943VE
- Volvo Penta TAD950VE
- Volvo Penta TAD951VE
- Volvo Penta TAD952VE
- Volvo Penta TAMD103A
- Volvo Penta TAMD121D
- Volvo Penta TAMD75P-A
- Volvo Penta TD1010G
- Volvo Penta TD1210G
- Volvo Penta TD164KAE
- Volvo Penta TD640VE
- Volvo Penta TD710G
- Volvo Penta TID70G
- Volvo Penta TMD102A
- Volvo Penta TMD121C
- Volvo Penta TMD122A
- Volvo Penta TWD1010G
- Volvo Penta TWD1030ME
- Volvo Penta TWD1031VE
- Volvo Penta TWD1231VE
- Volvo Penta TWD1240VE
- Volvo Penta TWD1620G
- 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 TWD730ME
- Volvo Penta TWD731VE
Shipping & Delivery
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
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?
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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