Fuel Pump Kit – Fits Mercury Marine 30-300 HP Outboard Motors (Replaces 14360A27, 14360A78)

Fuel Pump Kit – Fits Mercury Marine 30-300 HP Outboard Motors

This aftermarket fuel pump kit is designed for a wide range of Mercury Marine 30-300 HP 2-Stroke outboard engines. It serves as a direct replacement, providing a reliable solution to restore your engine's fuel system performance.

Engineered to meet or exceed original equipment specifications, this kit ensures proper fit and function, replacing numerous Mercury part numbers.

• Installation Type: Direct OEM replacement
• Included Components: Fuel pump, mounting straps/bands, and gasket
• Compatible Fuel: Gasoline (marine grade)

Part Number Cross-Reference

Use this table to confirm equivalent part numbers. This kit is a direct replacement for the following Mercury components:

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

• 1 x Fuel Pump (14360A78)
• 2 x Straps / Bands (54-816311T)
• 1 x Gasket (27-987691)
• 1 x Install Instruction

Installation Guide

1. Safety First: Disconnect the battery and work in a well-ventilated area away from any sparks or open flames.
2. Relieve Fuel Pressure: Safely relieve any pressure from the fuel system according to your engine's service manual.
3. Disconnect Lines: Carefully label and disconnect the fuel inlet and outlet lines from the old pump. Have rags ready to catch any spilled fuel.
4. Remove Old Pump: Unbolt and remove the old fuel pump and discard the old gasket.
5. Install New Pump: Clean the mounting surface and place the new gasket. Install the new fuel pump.
6. Secure Connections: Secure the pump using the provided straps/bands. Reconnect the fuel lines to the correct ports.
7. Prime and Inspect: Reconnect the battery. Prime the fuel system and carefully inspect for any leaks at the pump and connections before starting the engine.
8. Test Operation: Start the engine and let it run, checking again for any leaks and ensuring smooth operation.

Troubleshooting & FAQ

Q: How do I confirm this fuel pump fits my Mercury engine?

A: This pump fits a wide range of Mercury 30-300 HP 2-stroke outboards. For best results, check the 'Compatible Engine Models' table and cross-reference your engine's original part number with our list under 'Part Number Cross-Reference'. For specific model and year confirmation, we recommend using the Mercury Serial Number Guide linked above.

Q: What are the common signs of a failing fuel pump?

A: Symptoms of a bad fuel pump often include difficulty starting the engine, engine sputtering or stalling (especially at high speeds), a noticeable loss of power, or inconsistent performance. A physical inspection might also reveal cracks or fuel leaks from the old pump housing.

Q: Is a new gasket included with the pump?

A: Yes, this kit is complete and ready for installation. It includes one new fuel pump, two mounting straps/bands, and one gasket, as detailed in the 'Package Contents' section.

Q: OEM vs. Aftermarket?

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.