• 420950820 Sea-Doo Rocker Cover Gasket | Genuine OEM BRP Part
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420950820 Sea-Doo Rocker Cover Gasket | Genuine OEM BRP Part

420950820 Sea-Doo Rocker Cover Gasket | Genuine OEM BRP Part

$64.00 AUD
$64.00 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

Genuine Sea-Doo 1503 / 1630 4-TEC Valve Cover Gasket - Part Number: 420950820

A genuine BRP moulded valve/rocker-cover gasket for Sea-Doo 1503 and 1630 Rotax 4-TEC engines. It seals the perimeter of the cylinder-head cover and helps keep engine oil out of the surrounding engine compartment.

⚙️ Key Features

  • Genuine BRP moulded valve-cover gasket
  • Correct perimeter shape and bolt-clearance profile
  • Oil- and heat-resistant elastomer
  • Reusable only if expressly permitted and completely undamaged; replacement is preferred after removal

🚤 Compatibility

Commonly used on

  • GTI, GTS, GTR and GTX 1503/1630 model families
  • RXP, RXT and Wake 1503/1630 model families
  • Sportster, Speedster, Challenger, Islandia and Utopia 4-TEC jet boats
  • Naturally aspirated and supercharged engines whose cylinder-head diagram specifies 420950820

Typically suits

  • HP Range: Approximately 130-325 HP across supported 1503/1630 engines
  • Engine / Drive Type: Three-cylinder 1503 cc or 1630 cc Rotax 4-TEC/ACE engine
  • Year Range: Approximately 2002 onward
  • Serial / Model Identification: Confirm the valve-cover casting and engine family. The 900 ACE Spark engine uses a different cover and gasket arrangement.

🔌 Function

Seals the valve-train cavity to retain lubricating oil and exclude water and debris.

⚠️ Common Signs of Failure

  • Oil seepage around the valve-cover perimeter
  • Burning-oil smell or oil on the exhaust components
  • Oil enters the spark-plug wells
  • Gasket is hard, torn, swollen or displaced
  • Leak begins after valve-clearance, cylinder-head or cover service

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 420950820 → supersedes legacy reference 290950820 / 2909508201
  • 290950820 and 2909508201 → earlier valve-cover gasket references

OEM / Related Numbers

  • 420950820
  • 290950820
  • 2909508201

Aftermarket / Verified Equivalents

  • No verified direct branded aftermarket equivalent with confirmed BRP sealing profile

📦 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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