Oil Seal – Fits Suzuki DT2/DT2.2 Outboard Motors (Replaces 09289-12002)
Oil Seal – Fits Suzuki DT2/DT2.2 Outboard Motors (Replaces 09289-12002) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Oil Seal – Fits Suzuki DT2/DT2.2 Outboard Motors (Replaces 09289-12002) is backordered and will ship as soon as it is back in stock.
Product Details
This Oil Seal – Fits Suzuki DT2/DT2.2 Outboard Motors (Replaces 09289-12002) is a crucial component for maintaining the integrity of Suzuki 2-Stroke DT2 and DT2.2 outboard motors manufactured between 1986 and 2005. It creates a durable seal within the lower unit gear case to prevent fluid leaks and protect internal components from water intrusion.
This part serves as a direct cross-reference for Suzuki OEM part numbers 09289-12002 and 09289-10005.
- Installation Location: Lower Unit / Gear Case
- Material Construction: High-grade Rubber/Metal composite for durability and a reliable seal.
- Primary Function: Prevents gear lube from leaking out and water from entering the gear case.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Suzuki | 09289-12002 | Primary replacement number. |
| Suzuki | 09289-10005 | Interchangeable; may be specific to certain DT2.2 model years. |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Suzuki Owners: This part is designed for specific DT2 and DT2.2 models. Please check your engine's model and year against this table to ensure correct fitment before ordering.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Suzuki | DT2 | 2 | 2-Stroke | 1986–1987 | 09289-12002 | |
| Suzuki | DT2.2G-Y | 2.2 | 2-Stroke | 1986–2000 | 09289-10005/09289-12002 | 09289-10005 may be specific to certain model years |
| Suzuki | DT2.2 K1-K5 | 2.2 | 2-Stroke | 2001–2005 | 09289-10005/09289-12002 | 09289-10005 may be specific to certain model years |
Technical Specs
- Product Type
- Oil Seal
- Installation
- Lower Unit
- Housing Material
- Rubber/Metal
- Dimensions
- 1.0 (H) x 9.8 (W) x 12.5 (L)
- Application
- Used in gear case/lower unit applications
What’s in the Box
- 1 x Oil Seal (Replaces 09289-12002)
Installation Notes
- Ensure the engine is off, in neutral, and disconnected from the power source.
- Place a drain pan under the lower unit and remove the drain/fill screws to empty the gear lube.
- Remove the propeller assembly and the bolts securing the lower unit to the engine.
- Carefully lower and remove the gear case assembly.
- Locate and gently pry out the old oil seal, taking care not to scratch the housing. Note its orientation.
- Thoroughly clean the seal seating area of any old sealant or debris.
- Lightly grease the new oil seal and press it into place evenly until it is properly seated. A socket or seal driver of the correct size is recommended.
- Reassemble the lower unit, propeller, and refill with the manufacturer-specified gear lube.
- Install new gaskets on the drain/fill screws and tighten them securely. Check for leaks before operation.
Troubleshooting & FAQ
How do I confirm this oil seal will fit my engine?
This seal is made for Suzuki 2-Stroke DT2 (1986–1987) and DT2.2 (1986–2005) models. The best way to ensure fitment is to check the OEM part number listed for your specific engine in your service manual and compare it to 09289-12002 or 09289-10005. You can also use the compatibility table provided on this page.
What are the signs of a failing lower unit oil seal?
Common symptoms include milky or "creamy" gear lube (which indicates water intrusion), visible oil leaks around the propeller shaft or driveshaft housing, or a recurring low level of gear case oil. Any of these signs warrant an immediate inspection and likely replacement of the seals.
Why are two different OEM part numbers listed (09289-12002 and 09289-10005)?
Manufacturers sometimes update part numbers over the production life of an engine series. In this case, 09289-10005 may have been used for specific model years of the DT2.2. This aftermarket seal is designed to replace both OEM versions.
How often should this seal be replaced?
It's good practice to inspect oil seals during any routine lower unit service, such as a water pump impeller change or annual gear lube replacement. We recommend replacing them preventatively every few years or immediately upon any sign of wear, damage, or leakage.
Is this part OEM or aftermarket?
This listing is for a high-quality aftermarket replacement part, not an OEM component. It has been engineered to meet or exceed original equipment specifications, produced in an ISO 9002 certified facility, and is subject to rigorous quality control inspections.
What are your shipping speed and costs?
We ship worldwide quickly, with typical transit times of 5–15 days for most regions. Standard shipping is free. Expedited shipping options, if available for your location, will be presented at checkout.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their original condition. Please see our full policy page or contact us for instructions.
Safety & Important Info
- Verify images and specifications against your original part before purchasing. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement part, not an original equipment manufacturer (OEM) component.
- Professional installation is recommended for safety and to ensure optimal performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world conditions.
- Fast Global Fulfillment — We offer free standard delivery to most regions with an average transit time of 5–15 days.
- Manufacturer-Direct Value — By working directly with manufacturers, we provide fair pricing without compromising on materials or quality control.
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