6BL-14301-00-00 Fuel Pump Assembly for Yamaha 25HP 4-Stroke | JLM Marine

Fuel Pump Assembly for Yamaha 25HP 4-Stroke Outboard Engines

This fuel pump assembly is engineered to fit Yamaha 25HP 4-Stroke outboard engines from 2006 to current models. Designed as a direct replacement for factory components, it ensures reliable fuel delivery and consistent engine performance across a wide range of operating conditions.

This assembly directly replaces Yamaha OEM part numbers 6BL-14301-12-00, 6BL-14301-11-00, 6BL-14301-10-00, and 6BL-14301-00-00, providing cross-compatibility with multiple superseded versions.

• Factory-equivalent fit for Yamaha 25HP 4-stroke engines
• Replaces multiple OEM part number revisions
• Reliable fuel delivery for consistent performance

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 Yamaha owners, here's a guide to help you identify your engine's serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 × Fuel Pump Assembly (as shown in product images)

Installation Guide

1. Disconnect the battery and relieve fuel system pressure before beginning work. Ensure the engine is cool and in a well-ventilated area.
2. Locate the original fuel pump on your Yamaha 25HP 4-stroke outboard. Note the routing of fuel lines and electrical connections.
3. Disconnect fuel lines from the inlet and outlet ports. Use a rag to catch any residual fuel.
4. Unplug electrical connectors if your pump has wiring for sensors or priming systems. Label connections for reassembly.
5. Remove mounting bolts securing the pump to the engine block. Keep hardware organized for reuse.
6. Remove the old fuel pump assembly carefully. Inspect the mounting surface and gasket area for debris or damage.
7. Clean the mounting surface thoroughly. Replace any worn gaskets or O-rings as needed.
8. Position the new fuel pump onto the mounting surface, aligning bolt holes and ensuring proper orientation.
9. Install mounting bolts and tighten evenly to manufacturer torque specifications. Do not over-torque.
10. Reconnect fuel lines to inlet and outlet ports, ensuring clamps are secure and properly seated.
11. Reconnect electrical connectors if applicable, matching labeled connections from disassembly.
12. Reconnect the battery, prime the fuel system, and check for leaks before starting the engine. Run the engine and monitor for proper fuel delivery.

Troubleshooting & FAQ

Q: How do I confirm this fuel pump fits my Yamaha 25HP engine?
A: Check that your engine is a 25HP 4-stroke model manufactured from 2006 to present. Verify your current fuel pump bears one of the OEM part numbers listed (6BL-14301-00-00, 6BL-14301-10-00, 6BL-14301-11-00, or 6BL-14301-12-00). You can also reference your engine's parts diagram using the links in the Compatible Engine Models section above.

Q: What are the signs that my fuel pump needs replacement?
A: Common symptoms include difficulty starting, engine stalling or sputtering under load, inconsistent idle, reduced top speed, or visible fuel leaks around the pump housing. If you experience any of these issues, inspect the fuel pump for cracks, worn diaphragms, or damaged seals.

Q: How often should I replace the fuel pump on my outboard?
A: Fuel pumps typically last several years under normal conditions, but replacement intervals depend on usage, fuel quality, and maintenance. Inspect the pump annually and replace it if you notice performance issues or visible wear. Always use fresh, clean fuel and replace fuel filters regularly to extend pump life.

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.