Yamaha Fuel Line Connector (6G1-24305/6Y1-24305) – Fits Yamaha 6-90 HP Outboards
This fuel line connector fits a wide range of Yamaha 6-90 HP outboard engines, designed for the 1/4" (6mm) fuel line connections on both the engine and tank side.
It serves as a direct, reliable replacement for multiple Yamaha and Sierra part numbers, ensuring a secure fuel system connection.
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Fuel Compatibility: Fully compatible with gasoline and ethanol blends up to E85.
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Simple Installation: Designed as a direct quick-connect replacement for original OEM parts.
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Durable Construction: Made with weather, UV, and ethanol-resistant materials for a long service life.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| Yamaha |
6G1-24305-06-00 |
| Yamaha |
6G1-24305-05-00 |
| Yamaha |
6G1-24305-04-00 |
| Yamaha |
6Y1-24305-00-00 |
| Yamaha |
6Y1-24305-06-00 |
| Sierra |
18-80414 |
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.
| Brand |
Model |
Rated HP |
Stroke |
OEM Part No. |
Notes |
| Yamaha |
Outboard |
6-90 |
2-Stroke & 4-Stroke |
6G1-24305-06-00 |
Engine side female connector |
| Yamaha |
Outboard |
6-90 |
2-Stroke & 4-Stroke |
6G1-24305-05-00 |
Engine side female connector |
| Yamaha |
Outboard |
6-90 |
2-Stroke & 4-Stroke |
6G1-24305-04-00 |
Engine side female connector |
| Yamaha |
Outboard |
6-90 |
2-Stroke & 4-Stroke |
6Y1-24305-00-00 |
Tank side female connector |
| Yamaha |
Outboard |
6-90 |
2-Stroke & 4-Stroke |
6Y1-24305-06-00 |
Tank side female connector |
Technical Specifications
| Specification |
Value |
| Product Type |
Fuel Line Connector/Pipe Joint |
| Installation |
Direct replacement for OEM parts |
| Fuel Type |
Gasoline, Ethanol blends up to E85, Diesel |
| Connection |
1/4" (6mm) Female |
| Housing Material |
Metal, Plastic (ABS) |
| Housing Color |
Black |
| Dimensions |
Engine side (male): 72 x 30mm (2.83" x 1.18") Female connector: 62 x 33mm (2.44" x 1.30") |
| Weight |
0.03 kg (0.06 lb) |
| Fitting Type |
Quick connect |
| Other Technical Attributes |
Weather and UV resistant, ethanol-resistant design |
Package Contents
- 1 x Fuel Pipe Joint Comp. (Replaces 6G1-24305-06-00 / 6Y1-24305-00-00)
Installation Guide
- Ensure the engine is off, cool, and in a well-ventilated area.
- Relieve any pressure from the fuel system by following your engine manufacturer's procedure.
- Place a rag or container under the connection point to catch any residual fuel.
- Carefully disconnect the old fuel connector by pressing the release mechanism.
- Inspect the fuel hose for any signs of cracking, brittleness, or damage and trim or replace as needed.
- Firmly push the new quick-connector onto the fitting until it clicks securely into place.
- Squeeze the primer bulb until it becomes firm to fill the fuel line and pressurize the system.
- Visually inspect the new connection for any signs of fuel leakage.
- Start the engine and let it run for a few minutes, re-checking for any leaks before taking your boat on the water.
Troubleshooting & FAQ
Q: How do I confirm this connector fits my engine?
A: This connector is designed for most Yamaha 6-90 HP outboards using a 1/4" (6mm) fuel line. To ensure compatibility, check your original part number against our cross-reference list and visually compare your old connector with the product images provided. Fitment can vary even within listed models.
Q: What is the difference between the engine side and tank side connectors this replaces?
A: This single part is designed to replace both engine side female connectors (like OEM part 6G1-24305-06-00) and tank side female connectors (like OEM part 6Y1-24305-00-00). While dimensions may vary slightly from your original part, it is functionally compatible with both applications.
Q: What are the signs of a failing fuel line connector?
A: Common symptoms include a noticeable smell of fuel, visible leaks or seepage around the connector, difficulty starting the engine, or the engine sputtering or stalling. These issues often point to a poor seal or a crack in the connector housing, which can let air in or fuel out.
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?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.