Sierra Fuel Connector 18-8091 for Mercury Mariner and Force Outboard Fuel Line Assemblies

The Sierra 18-8091 Fuel Connector is a machined fuel line fitting used in quick-connect fuel line assemblies for Mercury, Mariner, and select Force outboard motors. It is built for the connector positions on fuel line assemblies that use double-sealed quick-connect fittings on the tank end and clip-on quick-connect fittings on the engine end, letting boaters disconnect and reconnect fuel lines quickly for storage, winterizing, or engine service without tools.

Constructed from machined metal with an NPT threaded connection, the 18-8091 connector is sized to work with the fuel line assembly system that also includes the 18-80402 tank connector and 18-8005EP-1 primer bulb, both sold separately as individual components of the same assembly. It is offered as a shop pack of 10 connectors, priced per package, making it a practical option for marine shops and technicians who service multiple outboards and need connectors on hand for repeated repairs.

This connector is intended for Force outboards of 40 HP and larger (1993 and newer), Force 9.9/15/25 HP outboards (1998), and Mercury Mariner outboards that use clip-on type quick-connect fittings at both the tank and engine ends of the fuel line.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-8091
• Material: Metal
• Color: White
• Connector Type: Threaded
• Thread Type: NPT
• Exterior Finish: Machined
• Item Dimensions: 0.39 x 0.39 x 0.39 inches
• Weight: 1.58 pounds
• Package Quantity: 10 per package (shop pack, priced per package)
• Country of Origin: Taiwan
• UPC: 808282119850

Fitment

• Force outboards, 40 HP and larger, 1993 and newer
• Force outboards, 9.9/15/25 HP, 1998
• Mercury Mariner outboards using clip-on type quick-connect fittings at both the tank and engine ends of the fuel line

Frequently Asked Questions

What outboards does the Sierra 18-8091 fuel connector fit? The Sierra 18-8091 fuel connector fits Force outboards of 40 HP and larger (1993 and newer), Force 9.9/15/25 HP outboards (1998), and Mercury Mariner outboards that use clip-on type quick-connect fittings at both the tank and engine ends of the fuel line.

Is the 18-8091 sold as a single connector? No, the Sierra 18-8091 is sold as a shop pack of 10 connectors and is priced per package rather than per individual piece.

What is the 18-8091 connector made of? It is a machined metal fitting with an NPT threaded connection, designed for durable use in outboard fuel line assemblies.

How much does one package of 18-8091 connectors weigh? A package of Sierra 18-8091 fuel connectors weighs 1.58 pounds.

Does the 18-8091 include the tank connector or primer bulb? No, the 18-8091 is the fuel connector fitting only. The matching 18-80402 tank connector and 18-8005EP-1 primer bulb are separate components sold individually.

What are the dimensions of a single 18-8091 connector? Each Sierra 18-8091 connector measures 0.39 x 0.39 x 0.39 inches.

Does this connector use a clip-on or threaded fitting? The Sierra 18-8091 uses a threaded NPT connection as its fitting type.

Where is the Sierra 18-8091 connector manufactured? The 18-8091 fuel connector's country of origin is Taiwan.

Can the 18-8091 be used with Mercury outboards, or only Force models? It fits both: Mercury Mariner outboards using clip-on type quick-connect fittings, as well as qualifying Force outboards (40 HP and larger, 1993 and newer, and 9.9/15/25 HP models from 1998).

What finish does the 18-8091 fuel connector have? The Sierra 18-8091 has a machined exterior finish.