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Carburetor Gasket Set – Fits Mercury/Mariner 2-Stroke 30-125HP Outboards (Replaces 1395-8112231)

Sale price $15.99 Regular price $25.00
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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).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

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 aftermarket Carburetor Gasket Set – Fits Mercury/Mariner 2-Stroke 30-125HP Outboards (Replaces 1395-8112231) is designed for a wide range of Mercury/Mariner 2-stroke outboards from 30HP to 125HP, including 2, 3, and 4-cylinder configurations with serial numbers G055314 and up (primarily 1980s–1990s models). It is specifically made for WME series carburetors.

It serves as a direct interchange for Mercury part number 1395-8112231 and aftermarket equivalents from Sierra (18-7211-1), Mallory (9-37303), and GLM (40490).

  • Engineered for a direct replacement fit and function.
  • Includes essential gaskets and O-rings for a complete carburetor service.
  • Designed for use with gasoline and 2-stroke oil mix fuels.

Part Number Matrix

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

Brand Part Number
Mercury 1395-8112231
Mercury 1395-811223
Sierra 18-7211-1
Mallory 9-37303
GLM 40490

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This gasket set fits various 2, 3, and 4-cylinder Mercury and Mariner outboards. Verify your engine's serial number and carburetor ID to ensure a correct match.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Mercury/Mariner 2-Cylinder 30 2-Stroke G055314-Up 1395-8112231 Carburetor ID: WME-36, 36A37, 37A, 38, 39A, 42, 42A, 63, 64, 65
Mercury/Mariner 2-Cylinder 40 2-Stroke G055314-Up 1395-8112231 Carburetor ID: WME-36, 36A37, 37A, 38, 39A, 42, 42A, 63, 64, 65
Mercury/Mariner 3-Cylinder 45 Jet 2-Stroke D000750-Up 1395-8112231
Mercury/Mariner 3-Cylinder 50 2-Stroke D000750-Up 1395-8112231 Carburetor ID: WME-22, 22B, 23, 24, 26, 28, 35, 43, 44, 45
Mercury/Mariner 3-Cylinder 55 2-Stroke D000750-Up 1395-8112231 Carburetor ID: WME-22, 22B, 23, 24, 26, 28, 35, 43, 44, 45
Mercury/Mariner 3-Cylinder 60 2-Stroke D000750-Up 1395-8112231 Carburetor ID: WME-22, 22B, 23, 24, 26, 28, 35, 43, 44, 45
Mercury/Mariner 3-Cylinder 65 Jet 2-Stroke A996142-Up 1395-8112231 Carburetor ID: WME-1, 1A, 1B, 4, 5, 6A, 7, 7B, 8, 9, 10, 10A, etc.
Mercury/Mariner 3-Cylinder 70 2-Stroke A996142-Up 1395-8112231 Carburetor ID: WME-1, 1A, 1B, 4, 5, 6A, 7, 7B, 8, 9, 10, 10A, etc.
Mercury/Mariner 3-Cylinder 75 2-Stroke A996142-Up 1395-8112231 Carburetor ID: WME-1, 1A, 1B, 4, 5, 6A, 7, 7B, 8, 9, 10, 10A, etc.
Mercury/Mariner 3-Cylinder 80 2-Stroke A996142-Up 1395-8112231 Carburetor ID: WME-1, 1A, 1B, 4, 5, 6A, 7, 7B, 8, 9, 10, 10A, etc.
Mercury/Mariner 3-Cylinder 90 2-Stroke A996142-Up 1395-8112231 Carburetor ID: WME-1, 1A, 1B, 4, 5, 6A, 7, 7B, 8, 9, 10, 10A, etc.
Mercury/Mariner 4-Cylinder 80 Jet 2-Stroke B209468-Up 1395-8112231 Carburetor ID: WME-11, 14, 20, 20A, 21, 21A, 32, 32A, etc.
Mercury/Mariner 4-Cylinder 100 2-Stroke B209468-Up 1395-8112231 Carburetor ID: WME-11, 14, 20, 20A, 21, 21A, 32, 32A, etc.
Mercury/Mariner 4-Cylinder 115 2-Stroke B209468-Up 1395-8112231 Carburetor ID: WME-11, 14, 20, 20A, 21, 21A, 32, 32A, etc.
Mercury/Mariner 4-Cylinder 125 2-Stroke B209468-Up 1395-8112231 Carburetor ID: WME-11, 14, 20, 20A, 21, 21A, 32, 32A, etc.

Technical Specs

Product Type
Carburetor Gasket Set
Installation
Direct replacement
Fuel Type
Gasoline (2-stroke oil mix)
Dimensions
7.25 × 6.0 × 0.13 in
Weight
0.023 kg (0.05 lb)
Warranty
90 days (aftermarket) / OEM warranty when purchased as Mercury genuine part
Other Technical Attributes
For WME series carburetors (multiple configurations)

What’s in the Box

  • 1 x Manifold to Carburetor Gasket (18-0324)
  • 1 x Intake Gasket
  • 3 x O-Rings
  • 2 x Rectangular Gaskets

Installation Notes

  1. Disconnect the negative battery terminal and ensure the fuel supply line is shut off.
  2. Remove the engine cowling and airbox assembly to access the carburetor.
  3. Carefully disconnect fuel lines and throttle/choke linkages from the carburetor. Note their positions for reassembly.
  4. Unbolt and remove the carburetor from the intake manifold.
  5. Disassemble the carburetor, removing old gaskets and O-rings targeted for replacement.
  6. Thoroughly clean all mating surfaces to ensure a proper seal, removing any old gasket material or residue.
  7. Install the new gaskets and O-rings from the kit onto the corresponding carburetor components.
  8. Reassemble the carburetor and mount it securely onto the intake manifold.
  9. Reconnect all fuel lines and linkages.
  10. Reinstall the airbox and engine cowling.
  11. Reconnect the battery, prime the fuel system, and check for any leaks before starting the engine.

Troubleshooting & FAQ

How do I know if this gasket set fits my engine?

This set is for Mercury/Mariner 30-125HP outboards, generally from the 1980s-1990s with serial numbers G055314 and up, using WME-series carburetors. The best way to confirm is to check your engine's serial number and, if possible, the model ID stamped on your carburetor (e.g., WME-36, WME-22).

What are the signs of a failed carburetor gasket?

Common symptoms include fuel or air leaks around the carburetor body, a rough idle, stalling, difficulty starting, or poor acceleration. A visual inspection may reveal cracked, brittle, or degraded gaskets.

Is this a complete kit for a carburetor rebuild?

This is a gasket and O-ring set for sealing the carburetor body and mounting it to the manifold. It does not include internal components like needles, seats, or jets, which would be found in a full carburetor rebuild kit.

Why is my engine running worse after installation?

If performance suffers after installation, check for vacuum leaks caused by an improper seal. Ensure all mounting bolts are torqued evenly and that no gaskets were pinched or torn during assembly. Also verify that fuel lines and linkages were reconnected correctly.

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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