Oil Seal – Fits Suzuki DT9.9/DT15 Outboard Motors (Replaces 09283-25075)
Oil Seal – Fits Suzuki DT9.9/DT15 Outboard Motors (Replaces 09283-25075) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Oil Seal – Fits Suzuki DT9.9/DT15 Outboard Motors (Replaces 09283-2...
Product Details
This Oil Seal – Fits Suzuki DT9.9/DT15 Outboard Motors (Replaces 09283-25075) is designed for Suzuki 2-Stroke DT9.9 and DT15 outboard motors from 1986 to 2004, covering the K, G, Y, and K1-K4 model series.
It serves as a direct replacement for Suzuki OEM part number 09283-25075.
- Engineered for direct OEM replacement installation.
- Constructed from Nitrile Rubber for durability in marine environments.
- Rated for high temperature resistance from -30°C to 100°C.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Suzuki | 09283-25075 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This oil seal is compatible with the following Suzuki 2-stroke outboard models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Suzuki | DT9.9K | 9.9 | 2-Stroke | 1986–2000 | 09283-25075 | |
| Suzuki | DT15K | 15 | 2-Stroke | 1986–2000 | 09283-25075 | |
| Suzuki | DT9.9G | 9.9 | 2-Stroke | 1986–2000 | 09283-25075 | |
| Suzuki | DT15G | 15 | 2-Stroke | 1986–2000 | 09283-25075 | |
| Suzuki | DT9.9Y | 9.9 | 2-Stroke | 1986–2000 | 09283-25075 | |
| Suzuki | DT15Y | 15 | 2-Stroke | 1986–2000 | 09283-25075 | |
| Suzuki | DT9.9K1-K4 | 9.9 | 2-Stroke | 2001–2004 | 09283-25075 | |
| Suzuki | DT15K1-K4 | 15 | 2-Stroke | 2001–2004 | 09283-25075 |
Technical Specs
- Product Type
- Oil Seal
- Installation
- Direct OEM replacement
- Fuel Type
- Gasoline
- Housing Material
- Nitrile Rubber
- Dimensions
- 25 × 52 × 7 mm
- High Temperature Resistance
- -30°C to 100°C
What’s in the Box
- 1 x Oil Seal (09283-25075)
Installation Notes
- Ensure the engine is off and the battery is disconnected.
- Drain the gearcase oil completely.
- Remove the propeller and any related housing components to access the lower unit and propeller shaft.
- Carefully extract the old oil seal using a seal puller, taking care not to scratch the housing surfaces.
- Thoroughly clean the seal cavity and shaft to remove any old sealant, dirt, or corrosion.
- Lightly lubricate the inner and outer surfaces of the new oil seal with fresh marine grease.
- Gently press the new seal into place using a press or a socket of the correct diameter, ensuring it sits evenly and flush.
- Reassemble the lower unit components and propeller, then refill the gearcase with the recommended oil.
Troubleshooting & FAQ
How do I know if this oil seal will fit my Suzuki motor?
The best method is to confirm your engine's model and year are listed in the compatibility table. This seal fits specific Suzuki DT9.9 and DT15 models manufactured between 1986 and 2004. Cross-referencing the OEM part number 09283-25075 against your service manual is the most reliable way to guarantee fitment.
What are the signs of a failing oil seal?
Common signs of a bad seal include visible oil leakage around the propeller shaft area, or finding milky, emulsified gear oil when you perform a change, which indicates water has intruded into the gearcase.
How often should this seal be replaced?
It is best practice to replace lower unit seals whenever the gearcase is opened for service, a leak is detected, or as part of a scheduled major overhaul. There is no fixed service interval, so regular inspection is key.
Can I install this seal myself?
While DIY installation is possible for those with mechanical experience and the correct tools (e.g., seal pullers/presses), we recommend professional installation to prevent seal damage and ensure a proper, leak-free fit.
What is the difference between an OEM and an aftermarket part?
This listing is an aftermarket replacement (not OEM). It has been engineered to meet or exceed OEM-level specifications with comparable high-quality materials. Our parts are manufactured in an ISO 9002 certified facility and are batch-inspected for quality and consistency.
How fast is shipping?
We ship worldwide quickly—typical transit time is 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 part is covered by a 1-year warranty against manufacturing defects under normal use conditions. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their 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.
Payment & Security
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