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Universal Sprayless Connector – Fits All Marine Fuel Systems (Replaces Attwood 8838US6)

Regular price $14.95

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Orders are typically processed within 1–2 business days.


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


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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

The Universal Sprayless Connector – Fits All Marine Fuel Systems is a crucial safety device compatible with all marine outboard engines (1HP-350HP) and fuel tanks with 1/4" NPT fittings. It is engineered to eliminate fuel spray when connecting or disconnecting pressurized fuel lines, preventing hazardous spills during refueling or maintenance.

This kit serves as a direct replacement for Attwood part number 8838US6, providing a secure and reliable fuel line connection.

  • Installation Method: Inline fuel hose and fuel tank mount.
  • Environment: Suitable for gasoline and ethanol-blended fuels in harsh marine conditions.
  • Included Hardware: Comes as a complete set with one male tank connector and one female hose connector.

Part Number Matrix

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

Brand Part Number
Attwood 8838US6

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years Notes
All Marine Engine Brands All Models 1-350 2- & 4-Stroke All Compatible with all standard marine fuel tanks with 1/4" NPT fittings

Technical Specs

Product Type
Fuel Line Connector
Installation
Inline/Tank Mount
Fuel Type
Gasoline, Ethanol-blended fuels
Connection
Tank: 1/4" NPT; Hose: 3/8" and 5/16" fuel lines
Housing Material
High-strength plastic (POM Plastic)
Housing Color
Black
Fitting Type
Quick-Connect with check valves
Thread Size
1/4" NPT (tank side)
Working Pressure
20 psi maximum
Warranty
2 years
Other Technical Attributes
Pre-applied fuel-grade thread sealant; Less than 0.25kPa restriction at 50 liters/hour flow rate

What’s in the Box

  • 1 x Male Tank Connector with pre-applied thread sealant (Attwood 8838TM6)
  • 1 x Female Hose Connector (Attwood 8838HF6)

Installation Notes

  1. Ensure the engine is off and the fuel system is depressurized. Always work in a well-ventilated area away from any potential ignition sources.
  2. For the tank connection, thread the male connector (with its pre-applied sealant) onto the 1/4" NPT fitting on your fuel tank. Tighten securely but do not overtighten.
  3. For the hose connection, attach the female connector to your 3/8" or 5/16" fuel line, securing it with an appropriate hose clamp (not included).
  4. Connect the male and female fittings by pushing them together until they click firmly into place, ensuring a secure lock.
  5. After installation, prime the fuel system using your engine's primer bulb and meticulously check for any fuel leaks at all connection points before starting the engine.

Troubleshooting & FAQ

Will this connector fit my specific engine brand (e.g., Yamaha, Mercury)?

Yes, this Universal Sprayless Connector is designed to be fully compatible with all OEM marine engine brands from 1HP to 350HP, as well as all standard marine fuel tanks that use a 1/4" NPT fitting.

How does this prevent fuel spray?

The connector features recessed check valves that automatically seal the fuel line when disconnecting and prevent accidental spray if bumped. This design ensures fuel is contained within the line, providing a safer user experience.

Can I buy just the male or female part?

This product is sold as a complete set including both male and female connectors. However, individual components can be sourced separately. The male tank connector is equivalent to Attwood 8838TM6, and the female hose connector is equivalent to Attwood 8838HF6.

Is this connector resistant to ethanol-blended fuels?

Absolutely. It is constructed from a high-strength, fuel-resistant POM plastic, making it fully compatible with modern gasoline and ethanol-blended fuels without degrading over time.

What are signs that my sprayless connector needs replacement?

Signs of failure include persistent fuel leaks at the connection point, difficulty connecting or disconnecting the fittings, or visible cracks, and damage to the plastic housing. Regular inspection is recommended for safety.

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 2-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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