• Fast shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Welcome Aboard!

FLASHSALE26

Fuel Line Connector – Fits Yamaha Outboard 6-250 HP (Replaces 6E5-24305-05-00, 6E5-24305-06-00)

Regular price $27.82

Worry-free returns

Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.


If the return is due to our error or a defective item, we’ll make it right.


Please contact us before returning any item.

Delivery and Shipping

Orders are typically processed within 1–2 business days.


U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


International delivery times may vary due to customs processing.


Tracking information will be provided once your order ships.

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This high-quality 8mm Fuel Line Connector is designed for Yamaha outboard motors from 6 to 250 HP (model years 2004 and newer), ensuring a secure, leak-free connection on the engine side. It is compatible with both 2-stroke and 4-stroke engines that use an 8mm fuel line.

This part is a direct replacement for Yamaha OEM part numbers 6E5-24305-05-00 and its successor, 6E5-24305-06-00.

  • Installs directly on the engine side.
  • Features a quick-connect fitting for easy attachment.
  • Engineered for marine gasoline applications.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number Superseded By
Yamaha 6E5-24305-05-00 6E5-24305-06-00

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This connector is verified for the following Yamaha outboard models:

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha Outboard 6 4-Stroke 2004–2008 6E5-24305-05-00/6E5-24305-06-00
Yamaha Outboard 8 4-Stroke 2004–2008 6E5-24305-05-00/6E5-24305-06-00
Yamaha Outboard 9.9 4-Stroke 2004–2008 6E5-24305-05-00/6E5-24305-06-00
Yamaha Outboard 15 4-Stroke 2004–2008 6E5-24305-05-00/6E5-24305-06-00
Yamaha Outboard 20 4-Stroke 2006–2008 6E5-24305-05-00/6E5-24305-06-00
Yamaha Outboard 25 4-Stroke 2004–2008 6E5-24305-05-00/6E5-24305-06-00
Yamaha Outboard 30 4-Stroke 2005–2006 6E5-24305-05-00/6E5-24305-06-00

Technical Specs

Product Type
Fuel Line Connector
Installation
Engine Side
Fuel Type
Gasoline (Marine)
Connection
8mm Male
Housing Material
Metal & Rubber
Housing Color
Silver/Black
Fitting Type
Quick-Connect
Thread Size
5/16 inch (8mm)
Other Technical Attributes
Engine-side fuel connector for Yamaha outboard motors

What’s in the Box

  • 1 x Fuel Connector (Replaces 6E5-24305-05-00, 6E5-24305-06-00)

Installation Notes

  1. Ensure the engine is off and has completely cooled.
  2. Relieve any pressure from the fuel system according to your service manual.
  3. Disconnect the old fuel line connector from the engine port. Use a rag to catch any minor fuel spillage.
  4. Inspect the fuel line for any cracks or damage and replace if necessary.
  5. Firmly press the new male connector into the female engine port until it clicks securely into place.
  6. Gently tug on the connector to confirm it is fully seated.
  7. Prime the fuel system and carefully check for any leaks before starting the engine.

Troubleshooting & FAQ

How do I know if this 8mm connector is the right size for my Yamaha?

This connector fits Yamaha engines with an 8mm (5/16 inch) fuel line port. The best way to confirm is to measure your existing connector or consult your engine'''s service manual. This part is a direct replacement for OEM numbers 6E5-24305-05-00 and 6E5-24305-06-00.

What are the signs that my fuel connector needs replacement?

Common signs of a failing fuel connector include visible fuel leaks, a strong gasoline smell near the engine, difficulty starting, or stalling, which can indicate an air leak or poor fuel flow.

Can I install this connector myself?

Yes, installation is generally straightforward for those with basic mechanical skills. However, due to the fire risk associated with fuel systems, we always recommend professional installation if you are not completely comfortable with the procedure.

Is this connector for the engine side or the tank side?

This is an engine-side male connector. It is designed to plug directly into the fuel port on your Yamaha outboard motor.

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.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.