27-151724 Carburetor Intake Gasket for Mercury Mariner 75HP 80HP 90HP 115HP | JLM Marine

Carburetor Intake Gasket – Fits Mercury Mariner 75HP 80HP 90HP 115HP Outboards

This carburetor intake gasket is engineered to deliver reliable sealing for Mercury Mariner 2-stroke outboard engines rated at 75HP, 80HP, 90HP, and 115HP. Designed to prevent air leaks and maintain optimal fuel-air mixture, this gasket ensures consistent engine performance and longevity.

This aftermarket replacement directly replaces OEM part numbers 27-151723, 27-151724, 27-15172, 27-93214 and Sierra 18-0324, providing a cost-effective solution without compromising on quality or fit.

• Precision-cut to OEM specifications for secure carburetor-to-intake sealing
• Compatible with Mercury Mariner 2-stroke outboard engines
• Essential maintenance component for preventing fuel system air leaks

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands:

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Technical Specifications

Package Contents

Your purchase includes:

• 1 × Carburetor Intake Gasket

Installation Guide

1. Disconnect the battery and ensure the engine is cool before beginning work.
2. Remove the carburetor from the intake manifold by loosening the mounting bolts or fasteners.
3. Clean the mating surfaces on both the carburetor and intake manifold thoroughly, removing all old gasket material and debris.
4. Inspect the surfaces for warping, cracks, or damage that could prevent a proper seal.
5. Position the new gasket onto the intake manifold, aligning all mounting holes precisely.
6. Reinstall the carburetor carefully, ensuring the gasket remains properly aligned during installation.
7. Tighten the mounting bolts in a crisscross pattern to the manufacturer's recommended torque specification to ensure even sealing pressure.
8. Reconnect fuel lines and linkages that were disconnected during carburetor removal.
9. Reconnect the battery and start the engine to check for air leaks or fuel seepage around the gasket.
10. Inspect for leaks while the engine is running at idle and under load.

Troubleshooting & FAQ

Q: How do I confirm this gasket fits my Mercury Mariner engine?
A: Verify that your engine is a 2-stroke model rated at 75HP, 80HP, 90HP, or 115HP. Cross-reference your current gasket or OEM part number (27-151723, 27-151724, 27-15172, or 27-93214) with our compatibility table. You can also use the Mercury Serial Number Guide linked above to identify your exact engine model.

Q: What are the signs that my carburetor intake gasket needs replacement?
A: Common symptoms include rough idling, poor acceleration, fuel leaks around the carburetor base, air hissing sounds from the intake area, and difficulty starting the engine. If you notice any of these issues, inspect the gasket for cracks, hardening, or visible damage.

Q: How often should I replace the carburetor intake gasket?
A: Replace the gasket whenever you remove the carburetor for service or rebuild. As a preventive measure, inspect it annually or every 100 operating hours, especially if you notice performance issues. Gaskets can deteriorate from heat, fuel exposure, and age.

Q: Can I reuse the old gasket if it looks okay?
A: No, it is not recommended to reuse carburetor gaskets. Once compressed, the gasket material loses its ability to seal properly, which can lead to air leaks and poor engine performance. Always install a new gasket during reassembly.

Q: Is this an OEM part or an aftermarket replacement?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.