Oil Seal – Fits Suzuki Outboard DT2-DT9 Series (Replaces 09283-10003)
Oil Seal – Fits Suzuki Outboard DT2-DT9 Series (Replaces 09283-10003) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Oil Seal – Fits Suzuki Outboard DT2-DT9 Series (Replaces 09283-10003)
Product Details
This is a replacement Oil Seal – Fits Suzuki Outboard DT2-DT9 Series (Replaces 09283-10003) for Suzuki 2-Stroke outboard engines from 2 HP to 9.9 HP, manufactured between 1977 and 2002. This small rotary shaft oil seal is designed for various lower unit and gearcase applications, providing a reliable barrier against oil leakage and water intrusion.
It is a direct replacement for Suzuki part numbers 09282-10010, 09283-10001, 09283-10002, 09283-10003, 09283-10003-000, 09283-10008, BRP/OMC 5030109, and GLM Marine 87029.
- Installation Location: Lower Unit / Gearcase
- Seal Profile: TC type with a double lip and stainless steel garter spring for superior sealing.
- Material: Durable Nitrile Rubber housing for long service life.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Suzuki | 09282-10010 | 09283-10003 |
| Suzuki | 09283-10001 | 09283-10003 |
| Suzuki | 09283-10002 | 09283-10003 |
| Suzuki | 09283-10008 | 09283-10003 |
| Suzuki | 09283-10003-000 | 09283-10003 |
| BRP/OMC | 5030109 | |
| GLM Marine | 87029 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This part is compatible with a range of Suzuki 2-stroke outboards.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Suzuki | DT2 | 2 | 2-Stroke | 1977–1979 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT3.5 | 3.5 | 2-Stroke | 1977–1982 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT4 | 4 | 2-Stroke | 1977–1979 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT4 J4 | 4 | 2-Stroke | 1988–2002 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT4.5 | 4.5 | 2-Stroke | 1977–1979 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT5 | 5 | 2-Stroke | 1977–1982 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT5Y | 5 | 2-Stroke | 1988–2002 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT5W | 5 | 2-Stroke | 1981–1982 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT6 | 6 | 2-Stroke | 1986–2000 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT6Y-K2 | 6 | 2-Stroke | 2000–2002 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT7.5 | 7.5 | 2-Stroke | 1977–1979 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT8 | 8 | 2-Stroke | 1980–1982 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT8G-Y | 8 | 2-Stroke | 1986–2000 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT8Y-K2 | 8 | 2-Stroke | 2000–2002 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT9 | 9 | 2-Stroke | 1977–1979 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT4V | 4 | 2-Stroke | 1985–1987 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
| Suzuki | DT4K1 | 4 | 2-Stroke | 2001 | 09283-10003 | Supersedes 09282-10010, 09283-10001, 09283-10002, 09283-10008 |
Technical Specs
- Product Type
- Rotary Shaft Oil Seal
- Installation
- Lower Unit / Gearcase
- Dimensions
- 10 × 22 × 6 mm (ID × OD × Width)
- Weight
- 0.01 kg (0.022 lb)
- Housing Material
- Nitrile Rubber
- Profile Type
- TC (Double Lip with Garter Spring)
- Garter Spring
- Stainless Steel
- Other Technical Attributes
- Double lip radial seal with single garter spring
What’s in the Box
- 1 x Oil Seal (09283-10003)
Installation Notes
- Ensure the engine is off and cool. Disconnect the battery and secure the engine properly.
- Drain the gearcase lubricant into a suitable container.
- Remove the lower unit assembly from the outboard engine.
- Disassemble the propeller shaft housing to access the old oil seal.
- Carefully remove the worn seal using a seal puller or flat-head screwdriver, taking care not to scratch the housing bore.
- Thoroughly clean the seal seating area and inspect for any damage or corrosion.
- Lightly coat the new oil seal's outer diameter and inner lip with fresh marine grease or gear lube.
- Position the new seal squarely over the bore and gently press it into place using a seal driver or a socket of the appropriate size until it is fully seated.
- Reassemble the propeller shaft housing and lower unit components in the reverse order of disassembly.
- Refill the gearcase with the manufacturer-specified lubricant to the correct level.
- Check for leaks around the new seal before operating the engine in the water.
Troubleshooting & FAQ
How do I know if this oil seal will fit my specific engine model?
Please review the "Engine & Model Compatibility" table on this page. Cross-reference your outboard's model, year, and horsepower to ensure it is listed. Comparing the part number 09283-10003 with your service manual is also a reliable method.
What are the signs of a failed lower unit oil seal?
The most common signs include a milky or cloudy appearance in your gear lube (indicating water intrusion), visible oil leaking from the propeller shaft area, or a consistent need to top off the gear lube.
When should this oil seal be replaced?
It is recommended to replace lower unit oil seals whenever the gearcase is disassembled for other service (e.g., water pump replacement), if any leaks are detected, or as part of a preventative maintenance schedule every few hundred hours.
What is the difference between a TC profile seal and other types?
A TC profile seal features a double lip construction with a garter spring. The primary lip provides the main sealing function, the secondary lip acts as a dust/dirt excluder, and the stainless steel spring ensures constant pressure for a tight, reliable seal over time.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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