Exhaust Inner Cover Gasket – Fits Yamaha Outboard Motors (Replaces 6L2-41112-A3-00)
Exhaust Inner Cover Gasket – Fits Yamaha Outboard Motors (Replaces 6L2-41112-A3-00) 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
Exhaust Inner Cover Gasket – Fits Yamaha Outboard Motors (Replaces ...
Product Details
This genuine Yamaha factory gasket, an Exhaust Inner Cover Gasket, seals the exhaust inner cover on select Yamaha outboard engine models. The gasket helps maintain proper exhaust pressure and prevents exhaust gas leakage, which is critical for engine performance and safety.
This part is a direct replacement for Yamaha 6L2-41112-A3-00 and is part of a supersession chain that includes 6L2-41112-A1-00 and 6L2-41112-A2-00.
- Engineered for direct replacement installation.
- Constructed from OEM-specification material resistant to high temperatures and exhaust gases.
- Ensures a proper seal to prevent dangerous exhaust leaks.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Yamaha | 6L2-41112-A1-00 | 6L2-41112-A2-00 | Superseded Part |
| Yamaha | 6L2-41112-A2-00 | 6L2-41112-A3-00 | Superseded Part |
| Yamaha | 6L2-41112-A3-00 | Current part number |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|
Technical Specs
- Product Type
- Exhaust Inner Cover Gasket
- Installation
- Direct replacement
- Material
- OEM specification gasket material
- Application
- Marine outboard engines
- Other Technical Attributes
- Resistant to high temperatures and exhaust gases
- Product Dimensions
- 6.0" H x 11.25" W x 1.13" L
- Shipping Dimensions
- 6.0" H x 11.25" W x 1.13" L
What’s in the Box
- 1 x Gasket, Exhaust Inner Cover (6L2-41112-A3-00)
Installation Notes
- Ensure the engine is completely cool and disconnect the battery for safety.
- Locate and carefully remove the bolts securing the exhaust inner cover.
- Gently pry off the old cover and gasket. Use a plastic scraper to avoid damaging the mating surfaces.
- Thoroughly clean any old gasket material or carbon buildup from both the engine block and the cover.
- Position the new gasket, ensuring all holes align perfectly.
- Reinstall the exhaust inner cover and tighten the bolts in a crisscross pattern to the manufacturer's specified torque.
- Reconnect the battery, start the engine, and check for any signs of exhaust leaks around the cover.
Troubleshooting & FAQ
How do I know if my exhaust inner cover gasket is failing?
Signs of a failing gasket include a noticeable ticking or hissing sound from the engine, visible black soot around the exhaust cover, a smell of exhaust fumes, and a potential loss of engine power.
Is sealant necessary when installing this gasket?
Generally, this type of gasket is designed to be installed dry. Applying sealants can sometimes cause the gasket to slip or fail prematurely. Always follow the engine manufacturer's service manual recommendations.
What happens if I ignore a leaking exhaust gasket?
Ignoring a leak can lead to reduced engine performance, increased fuel consumption, and the release of harmful exhaust gases into the boat or engine compartment, which is a serious safety hazard.
Can I reuse my old exhaust gasket?
No. Gaskets are single-use components that crush to create a seal. Once removed, they will not provide a reliable seal and must be replaced.
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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