# 420230923 Sea-Doo O-Ring | Genuine OEM BRP Part

🔧 Product Description

  

Genuine Sea-Doo Oil Filter Cover O-Ring - Part Number: 420230923

  

A genuine BRP oil-filter-cover O-ring used in Rotax ACE and 4-TEC lubrication systems. It seals the outer oil-filter cover or cap to prevent oil leakage and loss of lubrication pressure.

  

⚙️ Key Features

  

• Genuine BRP oil-resistant filter-cover O-ring

• Correct cross-section for the supported oil-filter housing

• Designed for engine-oil pressure and operating temperature

• Recommended replacement whenever the filter cover is removed

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 420230923 → supersedes 420230920

• 420230920 → earlier oil-filter-cover O-ring reference

  

OEM / Related Numbers:

  

• 420230923

• 420230920

• 420850502 - related inner oil-filter O-ring on selected 1503/1630 engines

• 420950860 - related oil-filter sealing ring on selected assemblies

  

Aftermarket / Verified Equivalents:

  

• Aftermarket Sea-Doo oil-filter O-ring service sets commonly include 420230923

• Material and dimensions must be confirmed before substituting a generic O-ring

  

🚤 Compatibility

  

Commonly used on:

  

• Spark, Spark Trixx and GTI 90 with the 900 ACE engine

• GTI, GTS, GTR, GTX, RXP, RXT and Wake 1503/1630 applications

• Selected current 170, 230, 300 and 325 HP lubrication systems

• Only oil-filter housings whose diagram specifies 420230923

  

Typically suits:

  

• HP Range: Approximately 60-325 HP across ACE and 4-TEC applications

• Engine / Drive Type: Rotax 900 ACE, 1503 4-TEC or 1630 ACE/4-TEC lubrication system

• Year Range: Approximately 2014 onward on 900 ACE and broad later 4-TEC applications

• Serial / Model Identification: Confirm the oil-filter-cover diagram and groove dimensions. Several O-rings are used around the filter element and cover.

  

🔌 Function

  

Seals the oil-filter cover to retain engine oil and lubrication-system pressure.

  

Common signs replacement or service is required:

  

• Oil seepage around the filter cover

• O-ring is cut, flattened, brittle or swollen

• Oil-pressure warning after filter service

• Cover groove is damaged or the O-ring has been pinched

  

📦 Condition

  

• Genuine Sea-Doo / BRP OEM part

• Brand new

• Supplied in genuine BRP or equivalent protective packaging

## Details

- **Price:** 6.95 AUD
- **Vendor:** Seadoo
- **Tags:** Sea-Doo Parts | Jet Ski Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6.95 AUD | In stock |

## Images

- 420230923 Sea-Doo O-Ring | Genuine OEM BRP Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/420230923-o-ring)
> Updated: 2026-08-01