Fuel Line Connector Kit – Fits Yamaha Outboard Engines 6-90 HP (Replaces 6Y1-24305, 6G1-24305)
Fuel Line Connector Kit – Fits Yamaha Outboard Engines 6-90 HP (Replaces 6Y1-24305, 6G1-24305) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Fuel Line Connector Kit – Fits Yamaha Outboard Engines 6-90 HP (Rep...
Fuel Line Connector Kit – Fits Yamaha Outboard Engines 6-90 HP (Replaces 6Y1-24305, 6G1-24305) is backordered and will ship as soon as it is back in stock.
Product Details
This Marine Fuel Line Connector Kit is designed for a precise fit on Yamaha 2-stroke and 4-stroke outboard engines from 6 to 90 HP using a 6mm (1/4") fuel line. It ensures a reliable, leak-free connection between your fuel tank and engine, restoring proper fuel flow and performance.
This kit serves as a direct interchange for Yamaha part numbers 6Y1-24305-06-00, 6Y1-24305-05-00, 6Y1-24305-04, 6G1-24304-02-00, 6G1-24304-01, 6G1-24304-10-00, and Sierra equivalents 18-80414 and 18-80413.
- Engineered for a direct fit, requiring no modifications for installation.
- Constructed with superior resistance to UV, ozone, and modern ethanol-blended fuels.
- Includes all necessary male and female connectors for a complete tank and engine-side replacement.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6Y1-24305-06-00 |
| Yamaha | 6Y1-24305-05-00 |
| Yamaha | 6Y1-24305-04 |
| Yamaha | 6G1-24304-02-00 |
| Yamaha | 6G1-24304-01 |
| Yamaha | 6G1-24304-10-00 |
| Sierra | 18-80414 |
| Sierra | 18-80413 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is confirmed to fit a wide range of Yamaha outboards from 6 to 90 HP. Please verify your specific model against the compatible part numbers.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yamaha | Outboard | 6 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 8 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 9.9 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 15 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 20 | 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 25 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 30 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 40 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 50 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 55 | 2-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 60 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 70 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 75 | 2-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 85 | 2-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
| Yamaha | Outboard | 90 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00, 6G1-24304-10-00 | Tank side and engine side |
Technical Specs
- Product Type
- Fuel Line Connector Kit
- Installation
- Direct fit, no modification needed
- Fuel Type
- Gasoline, Ethanol-blended fuels
- Connection
- 6mm (1/4")
- Housing Material
- ABS plastic with metal components
- Housing Color
- Black
- Dimensions
- 7 cm (2.76") length × 2 cm (0.79") width
- Weight
- 0.09 kg (3.17 oz)
- Fitting Type
- Quick disconnect
- Thread Size
- 6mm (1/4")
- Other Technical Attributes
- Superior resistance to UV, ozone, and alcohol-enhanced fuel
What’s in the Box
- 2 x Outboard Female Fuel Line Connectors (Replaces 6Y1-24305-06-00)
- 1 x Male Fuel Line Connector (Replaces 6G1-24304-10-00)
Installation Notes
- Ensure the engine is off and the fuel system is depressurized. Place a rag under the connection point to catch any residual fuel.
- Carefully disconnect the old fuel line connectors from both the engine and the fuel tank. Note their orientation.
- Inspect the fuel line for any signs of cracking, brittleness, or damage. Replace the fuel line hose if necessary.
- Securely attach the new female connectors to the fuel line ends leading to the engine and tank, ensuring a tight fit.
- Connect the new male connector to its corresponding port, typically on the fuel tank side.
- Connect the fuel line to the engine and tank. Prime the fuel bulb until it is firm.
- Check all connections for leaks before starting the engine. Start the engine and re-check for any sign of fuel seepage.
Troubleshooting & FAQ
How do I know if this connector kit fits my Yamaha engine?
This kit is designed for Yamaha 6-90 HP outboard engines using a 1/4" (6mm) fuel line. The best way to confirm is by matching your old part's number to the ones listed in our Part Number Matrix, which includes 6Y1-24305-06-00 and 6G1-24304-10-00.
What are signs of a failing fuel line connector?
Common signs include visible fuel leaks or a strong smell of gasoline around the engine, difficulty starting, stalling, or sputtering at low speeds. The plastic may also appear cracked, faded, or brittle.
Can I use this kit with ethanol-blended fuel (e.g., E10)?
Yes, these connectors are made from modern materials that are resistant to the corrosive effects of alcohol-enhanced fuels like E10, as well as UV exposure and ozone.
Why does the kit include two female connectors and one male connector?
This configuration is standard for many Yamaha setups. One female connector attaches to the engine-side fuel line, the other female connector attaches to the tank-side fuel line, and the male connector is typically installed on the fuel tank itself, allowing for a quick-disconnect system.
Is any special tool needed for installation?
No special tools are required. Installation typically involves hose clamps which can be managed with a standard screwdriver or pliers, depending on the clamp type. The quick-disconnect fittings simply click into place.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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