Exhaust Cover Gasket – Fits Mercury & Mariner 6–15 HP Outboards (Replaces 27-19185)
Exhaust Cover Gasket – Fits Mercury & Mariner 6–15 HP Outboards (Replaces 27-19185) 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 Cover Gasket – Fits Mercury & Mariner 6–15 HP Outboards...
Product Details
This replacement Exhaust Cover Gasket is designed for a durable, leak-proof seal on various Mercury and Mariner 6, 8, 9.9, 10, and 15 HP 2-stroke outboard engines, covering models from 1986 through modern production years.
It serves as a direct replacement for Mercury OEM part numbers 19185 and 27-19185, ensuring precise fitment and function.
- Engineered for direct replacement installation.
- Seals the exhaust cover to prevent gas and water leaks.
- Made from high-quality composite gasket material for longevity.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 19185 |
| Mercury | 27-19185 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket fits a wide range of Mercury and Mariner 2-stroke outboard engines from 6 HP to 15 HP, spanning various models produced from 1986 to the present day. Check your model and serial number range for an exact match.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury/Mariner | 6 | 6 | 2-Stroke | 1986–1989 | 27-19185 | Models 9461526-9792199 |
| Mercury/Mariner | 6 | 6 | 2-Stroke | 1990–1996 | 27-19185 | Models 9792200-0P016999 |
| Mercury/Mariner | 6 | 6 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 6 | 6 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
| Mercury/Mariner | 8 | 8 | 2-Stroke | 1986–1989 | 27-19185 | Models 9461526-9792199 |
| Mercury/Mariner | 8 | 8 | 2-Stroke | 1990–1996 | 27-19185 | Models 9792200-0P016999 |
| Mercury/Mariner | 8 | 8 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 8 | 8 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
| Mercury/Mariner | 9.9 | 9.9 | 2-Stroke | 1986–1989 | 27-19185 | Models 9461526-9792199 |
| Mercury/Mariner | 9.9 | 9.9 | 2-Stroke | 1990–1996 | 27-19185 | Models 9792200-0P016999 |
| Mercury/Mariner | 9.9 | 9.9 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 9.9 | 9.9 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
| Mercury/Mariner | XR10 | 10 | 2-Stroke | 1986–1989 | 27-19185 | Models 9596000-9792199 |
| Mercury/Mariner | XR10 | 10 | 2-Stroke | 1990–1996 | 27-19185 | Models 9792200-0P016999 |
| Mercury/Mariner | XR10 | 10 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 10 MAGNUM | 10 | 2-Stroke | 1986–1989 | 27-19185 | Models 9596000-9792199 |
| Mercury/Mariner | 10 MAGNUM | 10 | 2-Stroke | 1990–1996 | 27-19185 | Models 9792200-0P016999 |
| Mercury/Mariner | 10 MAGNUM | 10 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 10 MARATHON | 10 | 2-Stroke | 1986–1989 | 27-19185 | Models 9596000-9792199 |
| Mercury/Mariner | 10 MARATHON | 10 | 2-Stroke | 1990–1996 | 27-19185 | Models 9792200-0P016999 |
| Mercury/Mariner | 10 MARATHON | 10 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 10 MARATHON | 10 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
| Mercury/Mariner | 10 SEA PRO | 10 | 2-Stroke | 1986–1989 | 27-19185 | Models 9596000-9792199 |
| Mercury/Mariner | 10 SEA PRO | 10 | 2-Stroke | 1990–1996 | 27-19185 | Models 9792200-0P016999 |
| Mercury/Mariner | 10 SEA PRO | 10 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 10 SEA PRO | 10 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
| Mercury/Mariner | 10 VIKING | 10 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 10 VIKING | 10 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
| Mercury/Mariner | 15 | 15 | 2-Stroke | 1986–1889 | 27-19185 | Models 9542620-9792199 |
| Mercury/Mariner | 15 | 15 | 2-Stroke | 1990–1996 | 27-19185 | Models 9792200-0P016999 |
| Mercury/Mariner | 15 | 15 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 15 | 15 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
| Mercury/Mariner | 15 MARATHON | 15 | 2-Stroke | 1990–1996 | 27-19185 | Models 9927000-0P016999 |
| Mercury/Mariner | 15 MARATHON | 15 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 15 MARATHON | 15 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
| Mercury/Mariner | 15 SEA PRO | 15 | 2-Stroke | 1990–1996 | 27-19185 | Models 9927000-0P016999 |
| Mercury/Mariner | 15 SEA PRO | 15 | 2-Stroke | 1997–2005 | 27-19185 | Models 0P017000-0P325499 |
| Mercury/Mariner | 15 SEA PRO | 15 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
| Mercury/Mariner | 15 VIKING | 15 | 2-Stroke | 2005+ | 27-19185 | Models 0P325500 & Up |
Technical Specs
- Product Type
- Exhaust Cover Gasket
- Installation
- Direct replacement
- Material
- Gasket material (composite/paper)
- Dimensions
- 10.04 in × 5.71 in × 0.04 in (25.5 cm × 14.5 cm × 0.1 cm)
- Weight
- 0.02 lb (9.1 g)
- Function
- Used in exhaust system assembly
What’s in the Box
- 1 x Gasket (Replaces 27-19185)
Installation Notes
- Ensure the engine is off, cool, and disconnected from the power source.
- Locate and access the exhaust cover on the outboard motor.
- Carefully remove the mounting bolts securing the exhaust cover.
- Remove the old gasket and thoroughly clean both mating surfaces of any old gasket material or debris. A plastic scraper can help avoid marring the metal surfaces.
- Position the new gasket correctly over the alignment dowels on the engine block.
- Reinstall the exhaust cover, ensuring the gasket remains properly aligned.
- Tighten the mounting bolts to the manufacturer's specified torque in a crisscross pattern to ensure even pressure.
- After reassembly, reconnect the power source and test the engine for exhaust leaks around the cover, both at idle and under light load.
Troubleshooting & FAQ
How do I know if this exhaust gasket fits my specific engine?
This gasket is designed for Mercury and Mariner 6-15 HP 2-stroke outboards from 1986 onwards. The best way to confirm is to check the detailed "Engine & Model Compatibility" table on this page. Cross-reference your engine's model, year, and serial number range to ensure a perfect match before ordering.
What are the signs of a failing exhaust cover gasket?
Common symptoms include a noticeable exhaust leak (hissing or sputtering sound) from the cover area, visible water dripping from the gasket seam, reduced engine performance, or an overly loud exhaust note. These signs indicate the seal has been compromised.
Can I reuse my old exhaust cover gasket?
No. Gaskets are single-use components designed to crush and create a seal. Once compressed and heat-cycled, an old gasket will not provide a reliable seal if reinstalled and is very likely to leak.
Is any sealant required with this gasket?
Generally, this type of composite gasket is designed to be installed dry. Applying sealant is not usually necessary and may interfere with a proper seal. Ensure both mating surfaces are clean, dry, and free of defects for the best result.
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.
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