Housing Oil Seal – Fits Yamaha Outboard Engines (Replaces 689-15396-01-CA)
Housing Oil Seal – Fits Yamaha Outboard Engines (Replaces 689-15396-01-CA) is backordered and will ship as soon as it is back in stock.
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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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Housing Oil Seal – Fits Yamaha Outboard Engines (Replaces 689-15396...
Product Details
This replacement Housing Oil Seal – Fits Yamaha Outboard Engines (Replaces 689-15396-01-CA) is designed for a precise fit on multiple Yamaha outboard engines, including various 25-30 HP 2-Stroke models. It installs in the lower unit to prevent gearcase oil leakage and ensure proper lubrication for internal components.
This part provides a direct interchange for Yamaha OEM part numbers 689-15396-01-CA, 689-15396-01-5B, and 689-15396-00-9M.
- Engineered to prevent oil leakage and maintain proper lubrication.
- Installs in the lower unit of the outboard engine.
- Designed as a direct OEM-equivalent fit.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 689-15396-01-CA |
| Yamaha | 689-15396-01-5B |
| Yamaha | 689-15396-00-9M |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha engines, this part is known to fit specific models with 61N, 61T, and 69P engine code designations. Always verify your specific model's requirements.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yamaha | Outboard | 25-30 | 2-Stroke | 689-15396-01-CA | Specific models with 61N, 61T, 69P designations |
Technical Specs
- Product Type
- Housing Oil Seal
- Installation
- Engine Lower Unit
- Connection
- Direct Fit
- Fitting Type
- OEM Direct Replacement
- Dimensions
- Height: 7.6; Width: 6.1; Length: 9.4;
- Function
- Prevents oil leakage and maintains proper lubrication in the engine
- Warranty
- Varies by manufacturer
What’s in the Box
- 1 x Housing Oil Seal (689-15396-01-CA)
Installation Notes
- Position the outboard's lower unit for access and place a drain pan beneath the gearcase drain screw.
- Remove the lower and upper (vent) gearcase screws and allow the oil to drain completely.
- Carefully remove the propeller and any associated hardware from the propshaft.
- Disassemble the lower unit components as required to access the old housing oil seal.
- Pry out the old seal, taking care not to scratch or damage the housing surface.
- Thoroughly clean the seal seating area to remove any old sealant or corrosion.
- Apply a light coat of marine grease to the new seal's outer and inner lips.
- Gently press the new seal into place using a seal driver or a socket of matching diameter, ensuring it is seated evenly and squarely.
- Reassemble the lower unit components in reverse order of disassembly.
- Install new drain and vent screw gaskets, then refill the lower unit with the manufacturer-specified gear lube until it flows from the vent hole.
- Re-install the vent screw first, then the lower drain screw. Clean any excess lube and check for leaks after a short period.
Troubleshooting & FAQ
How can I confirm this seal fits my specific engine?
The best method is to match the OEM part number (689-15396-01-CA) from your engine's service manual or parts diagram. While it fits many 25-30 HP 2-Stroke models, checking the exact part number is essential for a guaranteed fit.
What are the signs of a failing housing oil seal?
Common symptoms include visible gear lube leaking from the propeller shaft area, a persistent sheen of oil on the water around your motor, or finding water or a milky/creamy consistency in your gear lube during a change. Any of these signs warrant an inspection and likely seal replacement.
Is it necessary to replace the seal if it's not visibly leaking?
It is good practice to replace seals during any major lower unit service or rebuild, even if they aren't actively leaking. Seals can become hard and brittle over time, and replacing them proactively can prevent a future failure.
What is the difference between this and an original Yamaha part?
This is an aftermarket part designed to meet or exceed OEM specifications for fit, material, and function. It provides comparable performance and sealing properties to the original Yamaha part at a more accessible price point.
Can I install this oil seal myself?
While installation is possible for those with mechanical experience and the correct tools (like a seal puller and driver), we recommend professional installation. Improper installation can damage the new seal or the housing, leading to leaks.
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.
Payment & Security
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