• 420850502 Sea-Doo O-Ring | Genuine OEM BRP Part
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420850502 Sea-Doo O-Ring | Genuine OEM BRP Part

420850502 Sea-Doo O-Ring | Genuine OEM BRP Part

$6.95 AUD
$6.95 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

Genuine Sea-Doo Oil Filter Housing O-Ring - Part Number: 420850502

A genuine BRP oil-filter housing O-ring used on numerous 1503 and 1630 Rotax 4-TEC lubrication systems. It seals the inner filter-housing or cover interface around the replaceable oil-filter element.

⚙️ Key Features

  • Genuine BRP engine-oil sealing O-ring
  • Correct size and elastomer for the 4-TEC filter housing
  • Resistant to hot synthetic engine oil and pressure cycling
  • Recommended replacement whenever the housing joint is opened

🚤 Compatibility

Commonly used on

  • GTI, GTS, GTR and GTX 1503/1630 models
  • RXP, RXT and Wake 1503/1630 models
  • Selected Sea-Doo 4-TEC jet boats
  • Only lubrication assemblies whose diagram specifies 420850502

Typically suits

  • HP Range: Approximately 130-325 HP across supported engines
  • Engine / Drive Type: 1503 cc or 1630 cc Rotax 4-TEC/ACE lubrication system
  • Year Range: Approximately 2004 onward, engine revision dependent
  • Serial / Model Identification: Confirm the oil-filter housing diagram and original O-ring number before installation.

🔌 Function

Seals the oil-filter housing joint to retain engine oil and oil-system pressure.

⚠️ Common Signs of Failure

  • Oil leakage around the filter housing
  • O-ring is flattened, swollen, brittle or cut
  • Oil-pressure warning appears after filter service
  • Seal has been pinched or installed in the wrong groove

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 420850502 → supersedes 420850500
  • 420850500 → earlier filter-housing O-ring reference

OEM / Related Numbers

  • 420850502
  • 420850500
  • 420230923 - related outer filter-cover O-ring
  • 420950860 - related filter sealing ring on selected assemblies

Aftermarket / Verified Equivalents

  • Aftermarket 1503/1630 oil-filter O-ring sets commonly include 420850502
  • Generic O-rings should not be used without confirming size and oil-resistant material

📦 Condition

  • Genuine Sea-Doo / BRP OEM part
  • Brand new
  • Supplied in genuine BRP or equivalent protective packaging

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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