Carburetor Intake Gasket – Fits Mercury/Mariner 75-115HP 2-Stroke Outboards (Replaces 27-151724, 27-15172, 27-93214)

Product Details

This aftermarket Carburetor Intake Gasket creates a secure seal between the carburetor and intake manifold. It is designed for a wide range of Mercury and Mariner 75-115HP 2-stroke outboard engines, typically manufactured from the mid-1990s through the early 2000s. Proper sealing prevents vacuum leaks and ensures stable engine performance.

This part is a direct replacement for Mercury OEM part numbers 27-151724, 27-15172, and 27-93214, as well as Sierra part number 18-0324.

• Installs between the carburetor and the intake manifold.
• Designed for gasoline-fueled 2-stroke outboard engines.
• Suitable for multiple carburetor positions on both 3-cylinder and 4-cylinder engine models.

Part Number Matrix

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

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Mercury/Mariner models, compatibility is determined by serial number range, not necessarily model year. Please verify your engine's serial number falls within the ranges listed.

Technical Specs

Product Type

Carburetor Intake Gasket

Installation

Between carburetor and intake manifold

Fuel Type

Gasoline (2-stroke)

Housing Material

Paper

Dimensions

4.0" × 5.13" × 1.13"

Weight

50 grams (0.11 lb)

Warranty

1 Year (varies by seller)

Other Technical Attributes

Fits multiple carburetor positions on 3-cylinder and 4-cylinder engines

What’s in the Box

• 8 x Carburetor Intake Gasket (Replaces 27-151724, 27-15172, 27-93214)

Installation Notes

1. Disconnect the battery and turn off the fuel supply valve for safety.
2. Remove the engine cowling to access the carburetor assembly.
3. Carefully detach any fuel lines, linkages, and mounting bolts connected to the carburetor(s).
4. Gently remove the carburetor(s) from the intake manifold.
5. Remove the old gasket and thoroughly clean both mounting surfaces, ensuring they are free of old material and debris.
6. Position the new gasket correctly onto the intake manifold.
7. Reinstall the carburetor(s), ensuring an even fit, and tighten the mounting bolts to the manufacturer's recommended torque specifications.
8. Reconnect all fuel lines and control linkages.
9. Turn the fuel supply back on and inspect carefully for any signs of leaks.
10. Reconnect the battery, start the engine, and check for smooth idling and operation.

Troubleshooting & FAQ

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.