• 20405599 O-Ring | Genuine Volvo Penta Part
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20405599 O-Ring | Genuine Volvo Penta Part

20405599 O-Ring | Genuine Volvo Penta Part

$3.29 AUD
$3.29 AUD
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Shipping calculated at checkout.

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 sealing the oil-filter flange or plug within the oil-cooler and filter housing. It is used beside flange 11700609 and the filter bypass valve.

🚤 Compatibility

  • Engine Family: D, TD, TAD, MD

Full model list at the end of this description.

⚙️ Key Features

  • Oil-resistant filter-housing O-ring
  • Seals flange 11700609 in the oil-filter assembly
  • Used with filter bypass valve 20405744
  • Confirmed across D5/D7 oil-cooler housings
  • Also included in related block-heater/overhaul seal lists
  • Engine type: Volvo Penta 5- and 7-litre industrial diesel

🔌 Function

Seals the oil-filter flange or internal housing component to retain engine-oil pressure.

⚠️ Common Signs of Failure

  • Engine-oil seepage at the filter housing
  • O-ring cut or extruded
  • Oil bypass or filter-sealing problems
  • Leakage after filter-housing service

🛠️ Service Notes

  • Always fit a new O-ring — never refit one that has been removed, as it has already taken a set in its groove
  • Clean the groove and both sealing faces and check them for nicks, scoring and corrosion pitting; a damaged groove will leak however good the new seal is
  • Smear the ring with a little clean lubricant compatible with the fluid it seals, then roll it into place by hand so it sits untwisted and fully in its groove
  • Never lever an O-ring over a sharp edge or thread with a screwdriver; use a blunt plastic tool and protect any edge the ring has to pass
  • Assemble the joint squarely and tighten to the figure and sequence given in the workshop manual for your engine — over-tightening extrudes the ring and causes the very leak you were curing

🔄 Supersession & Cross Reference

OEM / Related Numbers

  • 11700609 - oil-filter flange
  • 20450891 - plug
  • 20405744 - bypass valve
  • 3831236 - oil filter
  • 20715675 - related oil coolers
  • 20715679 - related oil coolers
  • 20715681 - related oil coolers

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

  • Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA
  • Volvo Penta D5A-B TA, D5A-T, D5A-TA
  • Volvo Penta MD2010, MD2010B
  • Volvo Penta TAD520GE, TAD520VE
  • Volvo Penta TAD530GE MECH, TAD530GE EDC4
  • Volvo Penta TAD531GE MECH, TAD531GE EDC4
  • Volvo Penta TAD720GE, TAD720VE
  • Volvo Penta TAD721GE, TAD721VE
  • Volvo Penta TAD722GE, TAD722VE
  • Volvo Penta TAD730GE MECH, TAD730GE EDC4
  • Volvo Penta TAD731GE MECH, TAD731GE EDC4
  • Volvo Penta TAD750GE, TAD750VE
  • Volvo Penta TD520GE, TD520VE
  • Volvo Penta TD720GE, TD720VE PP
  • Volvo Penta TAD420VE
  • Volvo Penta TAD532GE EDC4
  • Volvo Penta TAD550GE
  • Volvo Penta TAD551GE
  • Volvo Penta TAD560VE
  • Volvo Penta TAD561VE
  • Volvo Penta TAD620VE
  • Volvo Penta TAD650VE
  • Volvo Penta TAD660VE
  • Volvo Penta TAD732GE EDC4
  • Volvo Penta TAD733GE EDC4
  • Volvo Penta TAD734GE
  • Volvo Penta TAD751GE
  • Volvo Penta TAD752GE
  • Volvo Penta TAD753GE
  • Volvo Penta TAD754GE
  • Volvo Penta TAD760VE
  • Volvo Penta TAD761VE
  • Volvo Penta TAD762VE
  • Volvo Penta TAD763VE
  • Volvo Penta TAD764VE
  • Volvo Penta TAD765VE
  • Volvo Penta TD420VE

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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