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FLASHSALE26

Carburetor & Fuel Pump Diaphragm Repair Kit for Mercury Mariner 6–25 HP 2-Stroke Outboards

Regular price $33.55

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Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


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

Product Details

This aftermarket carburetor and fuel pump diaphragm repair kit is designed for specified Mercury and Mariner 2-stroke outboard applications from 6 HP through 25 HP. It is intended to renew the diaphragm and sealing components used in the compatible carburetor and fuel pump assemblies.

The company application data identifies this repair kit for Mercury Mariner 6 HP, 8 HP, 9.9 HP, 10 HP, 15 HP, 20 HP, and 25 HP marine outboards. The 10 HP application includes SeaPro, Marathon, XR10, and Magnum models as specified in the application information.

  • Carburetor and fuel pump diaphragm repair application.
  • Designed for listed Mercury and Mariner 2-stroke outboards.
  • Aftermarket replacement for the listed manufacturer and aftermarket reference numbers.
  • Verify the engine model, carburetor configuration, and original part before ordering.

Reference Number Matrix

The following numbers are application references associated with this repair kit. They are provided for identification and cross-reference purposes only; confirm the complete engine and component application before purchase.

Brand Reference Number
Mercury / Quicksilver 1395-9761
Mercury 1395-811357
Mercury 1395-9179
Mercury 1395-9377
Mercury 1395-9645
Mercury 1395-9725
Mercury 1395-97611
Mercury 1395-9803
Sierra 18-7212
GLM 40610
Mallory Marine 9-37304

Engine & Model Compatibility

Compatibility is based on the company application data. Model, horsepower, stroke, and component conditions should be checked together against the engine identification label and the original carburetor or fuel pump assembly.

Brand Rated HP Stroke Application
Mercury Mariner 6, 8, 9.9 2-Stroke Marine outboard carburetor and fuel pump diaphragm repair application
Mercury Mariner 10 2-Stroke SeaPro, Marathon, XR10, and Magnum marine outboard carburetor and fuel pump diaphragm repair application
Mercury Mariner 15, 20, 25 2-Stroke Marine outboard carburetor and fuel pump diaphragm repair application

Technical Specifications

Product Type
Carburetor and fuel pump diaphragm repair kit
Application
Mercury and Mariner 2-stroke marine outboards
Horsepower Range
6 HP, 8 HP, 9.9 HP, 10 HP, 15 HP, 20 HP, and 25 HP applications
Installation
Replacement repair components; installation requires carburetor and fuel-system disassembly
Fuel Type
Gasoline marine outboard application
Construction
Diaphragm and sealing repair components; exact material and component quantities are not specified in the product data

What’s in the Box

This product is supplied as a carburetor and fuel pump diaphragm repair kit for the listed applications. The company data does not specify individual component quantities or provide a complete itemized package list. Do not assume that a float, needle valve, jets, pivot pin, or other unlisted components are included.

  • Diaphragm and sealing repair components for compatible carburetor and fuel pump applications.

Installation Notes

  1. Disconnect the battery, fuel supply, and any other systems required by the engine service procedure. Work in a well-ventilated area away from ignition sources.
  2. Remove the engine cowling and identify the carburetor, fuel pump, fuel lines, and control linkages before disassembly.
  3. Photograph or mark hose and linkage locations so the assembly can be returned to its original configuration.
  4. Remove and disassemble the applicable carburetor or fuel pump assembly on a clean work surface.
  5. Clean reusable metal parts with a suitable marine carburetor cleaner and remove old gasket or diaphragm material without damaging sealing surfaces.
  6. Inspect the housing, passages, fasteners, linkages, and mating surfaces for wear, corrosion, blockage, or damage not addressed by this kit.
  7. Install the replacement diaphragm and sealing components in the correct orientation for the specific engine assembly.
  8. Reassemble the component using the engine manufacturer’s service procedure and torque specifications.
  9. Reconnect hoses and linkages, prime the fuel system, and check carefully for leaks before starting the engine.
  10. After installation, verify starting, idle, acceleration, and fuel-system operation according to the applicable service manual.

Troubleshooting & FAQ

What problems can a diaphragm repair address?

A worn or damaged diaphragm may contribute to fuel-system leakage, hard starting, poor idling, hesitation, or inconsistent fuel delivery. These symptoms can have other causes, so inspect the complete fuel and ignition systems before replacing parts.

Will this fit every Mercury or Mariner 6–25 HP outboard?

No. The stated application covers specified Mercury Mariner 6 HP, 8 HP, 9.9 HP, 10 HP, 15 HP, 20 HP, and 25 HP 2-stroke marine outboards. Confirm the exact model, carburetor or fuel pump configuration, and reference number before ordering.

Is this kit for 2-stroke or 4-stroke engines?

The listed application is for 2-stroke Mercury and Mariner outboards. It is not presented as a 4-stroke application.

Does the kit include a complete carburetor?

No. This is a repair kit for diaphragm and sealing components; it is not a complete carburetor or fuel pump assembly.

Are all reference numbers guaranteed to be interchangeable?

The numbers shown are application references associated with this product. Number appearance alone does not confirm interchangeability for every engine configuration. Match the engine and component conditions before purchase.

Should installation be performed by a professional?

Professional installation is recommended when you are not familiar with marine fuel-system service. Incorrect assembly, hose routing, or adjustment can cause fuel leakage or unsafe engine operation.

Safety & Important Information

  • Use only with the listed Mercury and Mariner 2-stroke applications after confirming the exact engine and component configuration.
  • Fuel-system work must be performed with the engine stopped, fuel isolated, and adequate ventilation provided.
  • Inspect for fuel leaks before operating the engine.
  • This is an aftermarket replacement product and is not represented as an OEM component.
  • Reference numbers are supplied for identification and fitment checking; they do not replace the engine manufacturer’s service information.

About Sea Sierra

  • Marine replacement parts for maintenance and repair applications.
  • Product information organized around engine and component compatibility.
  • Practical aftermarket solutions for serviceable marine systems.

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