Gasket, Oil Seal Housing – Fits Yamaha 1.8L Marine Engines (Replaces 6H4-15369-A1-00)
Gasket, Oil Seal Housing – Fits Yamaha 1.8L Marine Engines (Replaces 6H4-15369-A1-00) 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
Gasket, Oil Seal Housing – Fits Yamaha 1.8L Marine Engines (Replace...
Product Details
This aftermarket Gasket, Oil Seal Housing is designed for a precise fit on Yamaha 1.8L and 1.9L marine engines manufactured from 2008 to the present. It serves as a direct-fit replacement, ensuring a reliable seal to prevent oil leaks from the oil seal housing.
It is a direct replacement for Yamaha OEM part number 6H4-15369-A1-00.
- Installs as a direct replacement for the original part.
- Compatible with a wide range of Yamaha 1.8L and 1.9L marine engines.
- Engineered to create a durable, leak-proof seal.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6H4-15369-A1-00 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | 1.8L/1.9L Marine Engines | Various | 4-Stroke | 2008–present | 6H4-15369-A1-00 |
Technical Specs
- Product Type
- Gasket, Oil Seal Housing
- Installation
- Direct replacement
- Dimensions
- 6.0" x 7.25" x 0.25"
- Compatibility
- Yamaha 1.8L and 1.9L marine engines
- Application
- Oil seal housing gasket
- OEM Part Number
- 6H4-15369-A1-00
What’s in the Box
- 1 x Gasket, Oil Seal Housing (6H4-15369-A1-00)
Installation Notes
- Disconnect the battery before beginning work.
- Drain necessary fluids like engine oil to prevent spills during disassembly.
- Remove any components that obstruct access to the oil seal housing.
- Carefully unbolt and remove the old oil seal housing and gasket.
- Thoroughly clean both mating surfaces, ensuring they are free of old gasket material, sealant, and debris.
- Position the new gasket correctly on the cleaned surface of the engine block or housing.
- Reinstall the oil seal housing and tighten the bolts to the manufacturer's specified torque sequence and values.
- Reassemble all components that were previously removed.
- Refill the engine oil and any other drained fluids to their proper levels.
- Reconnect the battery, start the engine, and carefully inspect for any leaks around the housing.
Troubleshooting & FAQ
How do I know if this gasket will fit my specific Yamaha model?
This gasket is engineered for Yamaha 1.8L and 1.9L marine engines from 2008 to the present. To guarantee fitment, we strongly recommend comparing your old part to the product images and specifications before ordering.
What are the signs of a failing oil seal housing gasket?
Common symptoms include visible oil leaks around the seal housing area, a persistent low engine oil level, the smell of burning oil, or oil residue in the bilge.
Do I need to use a sealant with this gasket?
This gasket is typically designed to be installed dry. However, always consult your engine's official service manual for specific procedures, as some applications may recommend a thin layer of a specific sealant.
When should this gasket be replaced?
Gaskets should be replaced whenever the component they seal is removed for service or if they show any signs of leaking or degradation. There is no fixed time-based interval; replacement is condition-based.
Is this an OEM or aftermarket part?
This listing is for an aftermarket replacement part, not an OEM component. It is built to meet or exceed OEM-level specifications using comparable materials. Our parts are manufactured in an ISO 9002 certified facility and are batch-inspected for quality and consistency.
What are the shipping speed and cost?
We ship worldwide quickly, with typical transit times of 5–15 days. Standard shipping is free for most orders. Expedited shipping options, where available, 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 any issues, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. Please see our policy page or reach out for detailed instructions.
Safety & Important Info
- Verify images and specifications against 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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