Sierra Fuel Connector 18-80425, Replaces Suzuki 65720-986B0, Fits DF25-DF140

The Sierra 18-80425 is a fuel connector fitting designed for Suzuki outboard fuel systems, engineered to join the fuel line to the engine or primer bulb assembly with a secure, leak-resistant connection. It is built for Suzuki DF25 through DF140 outboard applications and mates directly with the Sierra 18-80404 and 18-80419 fuel line connectors, making it the correct match when replacing or completing a fuel line set on these engines. This connector replaces the Suzuki OEM part number 65720-986B0, so it restores fuel connection function to factory specification without altering how the fuel system operates. Constructed as a compact fitting, it measures 0.39 x 0.39 x 0.39 inches and weighs 0.08 pounds, keeping it lightweight while maintaining a durable seal at the connection point. Boat owners and marine technicians use this connector when a fuel line fitting has cracked, lost its seal, or is being replaced as routine maintenance on Suzuki DF-series outboards. Because it is sold as the specific mating half of the connector system, confirming the corresponding connector (18-80404 or 18-80419) already installed on the fuel line or engine side ensures a proper fit. Always inspect the surrounding fuel line and O-rings when installing a new connector to ensure the full fuel delivery path is sound.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-80425
• Product Name: Fuel Connector
• Product Dimensions: 0.39 x 0.39 x 0.39 inches
• Weight: 0.08 pounds
• Mates With: Sierra 18-80404 and 18-80419
• Fitment: Suzuki DF25-DF140 outboards

Fitment

• Suzuki DF25-DF140 outboard engines

Replaces (OEM)

• Suzuki 65720-986B0

Frequently Asked Questions

What does the Sierra 18-80425 fuel connector fit? It is designed for Suzuki DF25 through DF140 outboard engines, connecting the fuel line to the engine's fuel system.

What OEM part number does the 18-80425 replace? It replaces Suzuki OEM part number 65720-986B0, restoring the fuel connection to factory specification.

Is the 18-80425 a genuine Sierra part or an aftermarket copy? The 18-80425 is a Sierra-branded fuel connector manufactured to match the fit and function of the original Suzuki fitting it replaces.

What are the dimensions of this fuel connector? The 18-80425 measures 0.39 x 0.39 x 0.39 inches, a compact fitting sized for direct installation in the fuel line.

How much does the 18-80425 fuel connector weigh? It weighs 0.08 pounds.

What other Sierra parts does the 18-80425 connect with? The 18-80425 mates with the Sierra 18-80404 and 18-80419 fuel line connectors to complete the fuel connection.

Do I need to replace anything else when installing the 18-80425? No additional parts are required beyond the connector itself, but inspecting the mating connector (18-80404 or 18-80419) and surrounding fuel line for wear is recommended during installation.

Will the 18-80425 work on any Suzuki outboard? It is fitted specifically for the Suzuki DF25-DF140 range; it is not intended for outboard models outside that range.

What is included when I order the 18-80425? The order includes one Sierra 18-80425 fuel connector fitting.

Why would I need to replace a fuel connector like the 18-80425? Fuel connectors like the 18-80425 are typically replaced when the original fitting cracks, wears out, or loses its seal, which can cause fuel leaks or poor fuel flow.