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Exhaust Baffle Gasket – Fits Mercury/Mariner 6-15 HP (Replaces 27-19184, 19184)

Sale price $6.73 Regular price $10.00
Shipping calculated at checkout.

Exhaust Baffle Gasket – Fits Mercury/Mariner 6-15 HP (Replaces 27-19184, 19184) is backordered and will ship as soon as it is back in stock.


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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

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This replacement Exhaust Baffle Gasket is designed for Mercury and Mariner 6 to 15 HP 2-stroke outboard motors manufactured from 1986 to the present. It ensures a proper seal within the exhaust system, preventing leaks and maintaining engine performance.

It serves as a direct replacement for Mercury part numbers 27-19184 and 19184, as well as Quicksilver 27-19184.

  • Engineered for direct-fit installation.
  • Made from high-quality, OEM-specification gasket material.
  • Withstands exposure to gasoline and harsh marine environments.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Mercury 27-19184
Mercury 19184
Quicksilver 27-19184

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This part fits a wide range of Mercury and Mariner models. Please verify your engine's serial number against the notes provided for your specific model and horsepower rating.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Mercury Outboard 6 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0A197112 thru 0D280999, 0G760300 thru 0T800999, 0P017000 thru 0P325499, 9461526 thru 9792199, 0D281000 thru 0G760299, 9792200 thru 0P016999, 0P325500 & Up
Mercury Outboard 8 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0A197112 thru 0D280999, 0G760300 thru 0T979999, 0P017000 thru 0P325499, 9461526 thru 9792199, 0D281000 thru 0G760299, 9792200 thru 0P016999, 0P325500 & Up, 0T980000 thru 0T999999, 1B000001 & Up
Mercury Outboard 9.9 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0A197112 thru 0D280999, 0G760300 thru 0T979999, 0P017000 thru 0P325499, 9461526 thru 9792199, 0D281000 thru 0G760299, 9792200 thru 0P016999, 0P325500 & Up, 0T980000 thru 0T999999, 1B000001 & Up
Mercury XR10 10 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0D281000 thru 0G760299, 9792200 thru 0P016999, 0G760300 thru 0T979999, 0P017000 thru 0P325499, 0D038000 thru 0D279998, 9596000 thru 9792199
Mercury Magnum 10 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0D281000 thru 0G760299, 9792200 thru 0P016999, 0G760300 thru 0T979999, 0P017000 thru 0P325499, 0D038000 thru 0D279999, 9596000 thru 9792199
Mercury Marathon 10 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0P325500 & Up, 0T980000 thru 0T999999, 1B000001 & Up, 0D281000 thru 0G760299, 9792200 thru 0P016999, 0G760300 thru 0T979999, 0P017000 thru 0P325499, 0D038000 thru 0D279999, 9596000 thru 9792199
Mercury Sea Pro 10 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0P325500 & Up, 0T980000 thru 0T999999, 1B000001 & Up, 0D281000 thru 0G760299, 9792200 thru 0P016999, 0G760300 thru 0T979999, 0P017000 thru 0P325499, 0D038000 thru 0D279999, 9596000 thru 9792199
Mercury Viking 10 2-Stroke 1996–Present 27-19184 Fits serial ranges: 0P325500 & Up, 0P017000 thru 0P325499
Mercury Outboard 15 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0A197112 thru 0D280999, 0G760300 thru 0T979999, 0P017000 thru 0P325499, 9542620 thru 9792199, 0D281000 thru 0G760299, 9792200 thru 0P016999, 0P325500 & Up, 0T980000 thru 0T999999, 1B000001 & Up
Mercury Marathon 15 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0P325500 & Up, 0T980000 thru 0T999999, 1B000001 & Up, 0G438000 thru 0G760299, 9927000 thru 0P016999, 0G760300 thru 0T979999, 0P017000 thru 0P325499
Mercury Sea Pro 15 2-Stroke 1986–Present 27-19184 Fits serial ranges: 0P325500 & Up, 0T980000 thru 0T999999, 1B000001 & Up, 0G438000 thru 0G760299, 9927000 thru 0P016999, 0G760300 thru 0T979999, 0P017000 thru 0P325499
Mercury Viking 15 2-Stroke 1996–Present 27-19184 Fits serial ranges: 0P325500 & Up

Technical Specs

Product Type
Exhaust Baffle Gasket
Installation
Direct replacement
Fuel Type
Gasoline
Material
OEM specification gasket material
Dimensions
255 × 145 × 1 mm (10.04 × 5.71 × 0.04 in)
Weight
0.009 kg (0.02 lb)

What’s in the Box

  • 1 x Gasket (27-19184)

Installation Notes

  1. Ensure the engine is off, cool, and disconnected from the power source.
  2. Locate and access the exhaust baffle plate cover on your outboard motor.
  3. Carefully remove the bolts or fasteners securing the cover. Note their positions if they vary in length.
  4. Remove the old, worn-out gasket. Use a plastic scraper to carefully remove any remaining gasket material from the mating surfaces.
  5. Ensure both the engine block and cover surfaces are immaculately clean and dry.
  6. Align the new gasket correctly with the bolt holes. Do not use any sealant unless specified by the engine manufacturer.
  7. Re-install the cover and hand-tighten the bolts. Then, torque the bolts to the manufacturer-specified value in the correct sequence.
  8. After installation, check for any exhaust leaks around the cover upon starting the engine.

Troubleshooting & FAQ

How do I find my engine's serial number?

The serial number is typically located on a tag on the transom bracket of your Mercury or Mariner outboard. Check our compatibility table carefully, as fitment often depends on this number.

What are the signs of a failed exhaust baffle gasket?

Common symptoms include a loud or unusual exhaust noise, a visible exhaust leak (soot streaks or black residue near the cover), decreased engine power, or an engine running rough, especially at idle.

Can I reuse my old gasket?

No. Gaskets are single-use components that crush to create a seal. Reusing an old gasket will almost certainly result in a leak. Always use a new gasket for any installation.

Is any sealant required for this gasket?

Generally, no sealant is required. This gasket is designed to be installed dry. Applying sealants can sometimes interfere with proper sealing or make future removal difficult. Always follow your engine's service manual for specific guidance.

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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