• 850418 O-Ring | Genuine Volvo Penta Part
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850418 O-Ring | Genuine Volvo Penta Part

850418 O-Ring | Genuine Volvo Penta Part

$13.49 AUD
$13.49 AUD
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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 o-ring from the Marine Propulsion group, weighing 0.005 kg and listed for 102 applications across the AQ, MD, TMD, AD, AQAD and D series. It supersedes part number 814166, which was catalogued earlier as a gasket, so an older parts list may show a flat gasket where this o-ring is now supplied.

🚤 Compatibility

  • Engine Family: AQ, MD, TMD, AD, AQAD, D, TAMD, B, BB, AQD

Full model list at the end of this description.

⚙️ Key Features

  • 0.005 kg
  • Supersedes 814166, formerly catalogued as a gasket
  • 102 applications across six engine series
  • Quantity varies by assembly, most commonly six

🔌 Function

Seals the joint between two components by being squeezed into its groove, keeping oil or water on the correct side of the housing.

⚠️ Common Signs of Failure

  • Weeping or dripping from the joint after a run
  • Oil level dropping with no other obvious source
  • Milky oil where water has found its way in
  • Ring flattened, nipped or split on removal
  • Ring gone hard and taken a permanent set

🛠️ Service Notes

  • The number it replaces was listed as a gasket, so check the groove and the mating face are suited to a round-section seal
  • Lubricate the ring lightly on assembly and take care not to trap it as the housing pulls up
  • Always fit a new ring rather than reusing one that has been compressed

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 850418 → Supersedes 814166

OEM / Related Numbers

  • 814166 earlier number superseded by this part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 500A, 501A, 740A, 230A, 230B, 250A, 250B, 251A
  • Volvo Penta AD41P-B, AD41B, AD41, AD41A, AD41BJ
  • Volvo Penta B230, B230E, B230F, B230FB, B230FX
  • Volvo Penta AQ130C, AQ130D, AQ130A, AQ130B
  • Volvo Penta AQ131A, AQ131B, AQ131C, AQ131D
  • Volvo Penta AQ225D, AQ225E, AQ225B, AQ225C
  • Volvo Penta AQ271A, AQ271C, AQ271B, AQ271D
  • Volvo Penta AQ151A, AQ151B, AQ151C
  • Volvo Penta AQ170B, AQ170C, AQ170A
  • Volvo Penta AQ200D, AQ200C, AQ200B
  • Volvo Penta TAMD41B, TAMD41M-A, TAMD41A
  • Volvo Penta TMD40A, TMD40B, TMD40C
  • Volvo Penta AD31, AD31B
  • Volvo Penta AQ125B, AQ125A
  • Volvo Penta AQ145B, AQ145A
  • Volvo Penta AQ171A, AQ171C
  • Volvo Penta AQ231A, AQ231B
  • Volvo Penta AQ255A, AQ255B
  • Volvo Penta AQ260A, AQ260B
  • Volvo Penta AQ311A, AQ311B
  • Volvo Penta AQAD40B, AQAD40A
  • Volvo Penta AQD21A, AQD21B
  • Volvo Penta D41, D41B
  • Volvo Penta TAMD31A, TAMD31B
  • Volvo Penta TAMD40A, TAMD40B
  • Volvo Penta TMD31A, TMD31B
  • Volvo Penta TMD41A, TMD41B
  • Volvo Penta AD30A
  • Volvo Penta AD40B
  • Volvo Penta AQ120B
  • Volvo Penta AQ140A
  • Volvo Penta AQ165A
  • Volvo Penta AQ175A
  • Volvo Penta AQ190A
  • Volvo Penta AQ211A
  • Volvo Penta AQ240A
  • Volvo Penta AQ290A
  • Volvo Penta AQAD30A
  • Volvo Penta AQD40A
  • Volvo Penta BB140A
  • Volvo Penta BB145A
  • Volvo Penta BB231A
  • Volvo Penta BB261A
  • Volvo Penta BB740A
  • Volvo Penta MD21B
  • Volvo Penta MD30A
  • Volvo Penta MD31A
  • Volvo Penta MD40A
  • Volvo Penta TAMD30A
  • Volvo Penta TMD30A

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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