Fuel Connector – Fits Yamaha 6-90 HP (Replaces 6G1-24305, 655-24305)
Fuel Connector – Fits Yamaha 6-90 HP (Replaces 6G1-24305, 655-24305) is backordered and will ship as soon as it is back in stock.
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Fuel Connector – Fits Yamaha 6-90 HP (Replaces 6G1-24305, 655-24305)
Fuel Connector – Fits Yamaha 6-90 HP (Replaces 6G1-24305, 655-24305) is backordered and will ship as soon as it is back in stock.
Product Details
This female Fuel Connector – Fits Yamaha 6-90 HP Outboard Motors (Replaces 6G1-24305) and provides a reliable, quick-connect solution for your marine fuel system. It is designed for a broad range of Yamaha 2-stroke and 4-stroke outboard engines (6–90 HP, 1984–present) as well as compatible Parsun models using a 6mm fuel line.
It serves as a direct replacement for Yamaha part numbers 6G1-24305 and 655-24305, Sierra 18-80414, and JLM Marine 6G1-24305-03.
- Features a simple quick-connect mechanism for fast installation to the male engine fitting.
- Includes an integrated one-way check valve to prevent fuel backflow and maintain line pressure.
- Connects securely to a standard 1/4" (6mm) fuel hose via the integrated barb.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6G1-24305 |
| Yamaha | 655-24305 |
| Sierra | 18-80414 |
| JLM Marine | 6G1-24305-03 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Yamaha: This connector fits a wide range of Yamaha 2-stroke and 4-stroke outboard motors from 6 to 90 HP manufactured from 1984 to the present.
Parsun: Compatible with corresponding Parsun outboard models that utilize a 6mm fuel line connection.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | Portable | 6 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Portable | 8 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Portable | 9.9 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Portable | 15 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Midrange | 25 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Midrange | 30 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Midrange | 40 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Midrange | 50 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Midrange | 60 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Midrange | 70 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Midrange | 85 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | Midrange | 90 | 2-Stroke | 1984–present | 6G1-24305 | |
| Yamaha | F4 | 4 | 4-Stroke | 1999–present | 6G1-24305 | |
| Yamaha | F6 | 6 | 4-Stroke | 1999–present | 6G1-24305 | |
| Yamaha | F8 | 8 | 4-Stroke | 1999–present | 6G1-24305 | |
| Yamaha | F9.9 | 9.9 | 4-Stroke | 1999–present | 6G1-24305 | |
| Yamaha | F15 | 15 | 4-Stroke | 1999–present | 6G1-24305 | |
| Yamaha | F20 | 20 | 4-Stroke | 1999–present | 6G1-24305 | |
| Yamaha | F25 | 25 | 4-Stroke | 1999–present | 6G1-24305 | |
| Yamaha | F30 | 30 | 4-Stroke | 1999–present | 6G1-24305 | |
| Yamaha | F40 | 40 | 4-Stroke | 1999–present | 6G1-24305 | |
| Parsun | Various | 6-90 | 2 & 4-Stroke | Compatible with Parsun models using 6mm fuel line |
Technical Specs
- Product Type
- Female Fuel Line Connector
- Installation
- Quick-connect to male engine fitting
- Fuel Type
- Gasoline (including ethanol blends)
- Connection
- 1/4" (6mm) fuel hose barb
- Housing Material
- Rubber/ABS composite
- Housing Color
- Black
- Dimensions
- Approximately 30mm length × 20mm diameter
- Weight
- 0.04 kg (1.13 oz)
- Fitting Type
- Female quick-connect
- Other Technical Attributes
- One-way check valve prevents fuel backflow
What’s in the Box
- 1 x Fuel Connector (6G1-24305)
Installation Notes
- Ensure the engine is turned off and the area is well-ventilated.
- Disconnect the existing fuel line from the engine-side fitting.
- To replace the connector on a hose, carefully remove any old clamps and pull the old connector off the hose.
- Firmly press the hose barb of the new connector into the 1/4" (6mm) fuel line until it is fully seated.
- Secure the hose to the barb with a new, appropriately sized hose clamp (not included).
- Align the new female connector with the male fitting on the engine and press firmly until it clicks securely into place.
- Squeeze the primer bulb until firm to fill the line with fuel, and inspect the connection carefully for any signs of leaks before starting the engine.
Troubleshooting & FAQ
How do I know if this connector fits my engine?
This connector is designed for most Yamaha 6-90 HP outboards (1984-present) and equivalent Parsun models. Please review the detailed "Engine & Model Compatibility" table and verify that your old part corresponds to one of the cross-referenced part numbers like 6G1-24305.
What are signs of a failing fuel connector?
Common signs include fuel leaks around the connection, difficulty starting or engine stalling (due to air entering the system), a loose or wobbly fit, and visible cracks or brittleness in the connector body.
How often should I replace my fuel line connector?
Inspect your fuel connectors annually for leaks, cracks, or a loose fit. It is good practice to replace them every few years as a preventative measure, especially if operating in harsh marine environments or using ethanol-blended fuels.
Is a clamp included for the hose barb?
A hose clamp is not included with this connector. You will need to use your existing clamp or purchase a new 1/4" (6mm) clamp separately to secure the fuel line to the barb.
What is the difference between this part and an OEM one?
This is an aftermarket part designed to meet or exceed original equipment specifications for fit, form, and function. It is constructed from a durable Rubber/ABS composite suitable for marine use and offers a cost-effective alternative to the OEM part.
Will this work with fuel containing ethanol?
Yes, this fuel connector is made with materials compatible with modern gasoline, including fuels containing ethanol (such as E10).
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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