Yamaha Exhaust Outer Cover Gasket – Fits Yamaha WaveRunner & WaveJammer 500 (1987-1993) (Replaces 689-41114-A0-00)
Yamaha Exhaust Outer Cover Gasket – Fits Yamaha WaveRunner & WaveJammer 500 (1987-1993) (Replaces 689-41114-A0-00) 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).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Yamaha Exhaust Outer Cover Gasket – Fits Yamaha WaveRunner & Wa...
Product Details
This is a high-quality aftermarket Yamaha Exhaust Outer Cover Gasket designed for specific personal watercraft models. It ensures a perfect seal for the exhaust system on Yamaha WaveRunner and WaveJammer 500cc 2-stroke watercraft manufactured between 1987 and 1993.
This part is a direct replacement for OEM part numbers 689-41114-A0-00 and 689-41114-00-00, and it is interchangeable with WSM part 007-454.
- Ensures a tight compression seal to prevent exhaust leaks.
- Mounts externally for straightforward installation.
- Constructed from durable composite/fiber gasket material for longevity.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 689-41114-00-00 | Superseded by 689-41114-A0-00 |
| Yamaha | 689-41114-A0-00 | Current OEM Part Number |
| WSM | 007-454 | Aftermarket Replacement |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | WaveRunner WR500 | 500cc | 2-Stroke | 1987–1993 | 689-41114-A0-00 | Also fits WR500F/G/H |
| Yamaha | WaveJammer WJ500 | 500cc | 2-Stroke | 1987–1990 | 689-41114-A0-00 | Also fits WJ500F/G/H |
Technical Specs
- Product Type
- Exhaust Outer Cover Gasket
- Installation
- External Mount
- Connection
- Compression Seal
- Housing Material
- Composite/Fiber Material
- Housing Color
- Brown/Tan
- Dimensions
- 25.5 cm L × 14.5 cm W × 0.2 cm H
- Fitting Type
- Gasket
- Warranty
- Varies by seller (typically 30-90 days)
- Other Technical Attributes
- Outer exhaust cover sealing gasket
What’s in the Box
- 1 × Gasket, Exhaust Outer Cover (Replaces 689-41114-A0-00)
Installation Notes
- Ensure the engine is completely cool and disconnect the battery for safety.
- Locate and access the exhaust outer cover on the engine.
- Carefully unbolt and remove the outer cover. Be prepared for the old gasket to stick to the cover or the engine block.
- Thoroughly clean both mating surfaces, ensuring they are free of old gasket material, carbon, and debris.
- Position the new gasket, making sure it aligns perfectly with the bolt holes.
- Reinstall the cover and tighten the bolts in a crisscross pattern to the manufacturer's recommended torque specification to ensure even pressure.
- After reassembly, reconnect the battery, start the engine, and check carefully for any signs of exhaust leaks around the cover.
Troubleshooting & FAQ
Will this gasket fit a 1995 WaveRunner?
No, this gasket is specifically designed for Yamaha 500cc models manufactured between 1987 and 1993, such as the WaveRunner WR500 and WaveJammer WJ500. Please verify your model and year before ordering.
What are the signs of a failed exhaust cover gasket?
Common symptoms include a loud or unusual ticking/hissing noise from the engine bay, visible black soot or exhaust residue around the exhaust cover, and a potential decrease in engine performance or power.
Is sealant required for installation?
Generally, this type of gasket is installed dry. The gasket material is designed to create a complete seal when compressed. Using sealant can sometimes interfere with proper sealing unless specified by your engine's service manual.
Can I reuse my old gasket?
No. This is a single-use compression gasket. Once it has been installed and compressed, it will not provide a reliable seal if removed and reinstalled. Always use a new gasket when servicing the exhaust cover.
Is this an original Yamaha (OEM) part?
This listing is for a high-quality aftermarket replacement, not an OEM component. It is engineered to meet or exceed OEM specifications for fit, form, and function, manufactured in an ISO 9002 certified facility and batch-inspected for quality assurance.
What are the shipping speed and cost?
We ship worldwide quickly—typical transit time is 5–15 days. Standard shipping is free to most regions, with expedited options available at checkout where applicable.
What is the warranty and return policy?
This part 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 if the part is unused and in its original condition. Please see our policy page or contact us for instructions.
Safety & Important Info
- Verify images and specifications against your original part before purchase. If anything differs—even if your model is listed as compatible—do not purchase.
- This is an aftermarket replacement part, not an OEM component.
- Professional installation is strongly recommended for safety and 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 a typical 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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