1/4" Female Fuel Line Connector – Fits Yamaha Outboard 6–90 HP (Replaces 6Y1-24305-06)
1/4" Female Fuel Line Connector – Fits Yamaha Outboard 6–90 HP (Replaces 6Y1-24305-06) 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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1/4" Female Fuel Line Connector – Fits Yamaha Outboard 6–90 HP...
1/4" Female Fuel Line Connector – Fits Yamaha Outboard 6–90 HP (Replaces 6Y1-24305-06) is backordered and will ship as soon as it is back in stock.
Product Details
This 1/4" Female Fuel Line Connector provides a secure, quick-disconnect fitting for Yamaha outboard engines. It is designed for the tank-side connection on models from 6 HP to 90 HP that use a 1/4 inch (6mm) fuel hose.
It serves as a direct replacement for multiple Yamaha and Sierra part numbers, including the primary cross-reference 6Y1-24305-06-00 and Sierra's 18-80413.
- Quick-connect design for simple installation and removal.
- Installs on the fuel tank side of the fuel line.
- Mates with Yamaha Tank Connector Sierra Part Number 18-8077-1.
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 | 6Y1-24305-04-00 |
| Yamaha | 6G1-24305-00-00 |
| Yamaha | 6G1-24305-01-00 |
| Yamaha | 6G1-24305-02-00 |
| Yamaha | 6G1-24305-03-00 |
| Yamaha | 6G1-24305-04-00 |
| Sierra | 18-80413 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha engines, this connector fits a wide range of 2-stroke and 4-stroke outboards from 6 to 90 HP.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yamaha | Outboard | 6-90 | 2-Stroke & 4-Stroke | 6Y1-24305-06-00 | Engine side connector |
Technical Specs
- Product Type
- Female Fuel Line Connector
- Installation
- Tank Side
- Fuel Type
- Gasoline
- Connection
- 1/4 inch (6mm) Fuel Hose
- Housing Material
- Rubber/Plastic with Metal Components
- Housing Color
- Black
- Dimensions
- Length: Approximately 2.5 inches (63.5mm)
- Weight
- Approximately 32 grams (1.13 ounces)
- Fitting Type
- Quick-Connect/Quick-Disconnect
- Thread Size
- Not applicable - Barb connection
- Warranty
- 1 Year (JLM Marine)
- Mates With
- Yamaha Tank Connector Sierra Part Number 18-8077-1
What’s in the Box
- 1 x Fuel Line Connector (Replaces 6Y1-24305-06-00)
Installation Notes
- Turn off the engine and allow it to cool. Disconnect the battery as a safety precaution.
- Relieve pressure from the fuel system by cautiously loosening the fuel filler cap.
- Place an absorbent rag under the existing connector to catch any spilled fuel.
- Disconnect the old female connector from the fuel tank outlet.
- Loosen the hose clamp and slide the old connector out of the fuel hose. Inspect the hose for wear and replace if necessary.
- Install the new connector onto the hose, ensuring it is fully seated on the barb, and secure it with a clamp.
- Firmly press the new connector onto the male fitting on the fuel tank until it clicks into place.
- Re-prime the fuel system using the primer bulb until it feels firm, and check for any leaks before starting the engine.
Troubleshooting & FAQ
How do I confirm this connector fits my specific Yamaha outboard?
This connector is designed for Yamaha outboards from 6 to 90 HP that use a 1/4-inch (6mm) fuel line. The most reliable method is to check your engine's original part number and compare it to the equivalents listed in our Part Number Matrix.
What are common signs that my fuel connector needs replacement?
Fuel leaks around the fitting, difficulty connecting or disconnecting the line, a loose fit, engine stalling, or trouble starting can all indicate a worn or failing connector.
Is this connector for the engine side or the tank side?
This is a female connector intended for the fuel tank side of the line. It connects to the male fitting on the fuel tank itself or an integrated tank connector.
How often should fuel line connectors be replaced?
There is no fixed replacement interval. Inspect connectors regularly for signs of UV damage, brittleness, cracks, or fuel leaks, and replace them anytime a problem is detected to prevent fuel system issues.
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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