Sierra 18-80402 Fuel Line Tank Connector, 1/4 Inch NPT, Fits Mercury Mariner and Force Outboards

The Sierra 18-80402 is a double sealed quick connect tank connector fitting used to build or repair marine fuel line assemblies on outboard motors. It threads in with a 1/4 inch NPT connection and is designed to mate with the tank-end quick connect fitting used on Sierra fuel line assemblies, pairing with connector 18-8091 to complete the hookup. This part is sold separately from the complete fuel line assembly kits it is designed to work with.

The 18-80402 fits Force outboards rated 40 HP and larger (1993 and Newer), Force 9.9/15/25 HP outboards (1998), and all Mercury and Mariner outboards that use clip-on type disconnects at both the tank end and the engine end of the fuel line. It is a machined fitting built for a secure, leak-resistant seal at the tank connection point, and it is a compact, easy-to-install replacement for a worn or damaged tank connector without requiring a full fuel line assembly replacement.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-80402
• Product Type: Fuel Line Tank Connector
• Connector Type: Double Sealed Quick Connect (Tank End)
• Thread Size: 1/4 inch NPT
• Compatible With: Mates with Sierra 18-8091
• Item Dimensions: 5.31 x 2.94 x 1.5 inches
• Weight: 0.07 pounds
• Country of Origin: Taiwan
• UPC: 808282185275

Fitment

• Force outboards, 40 HP and larger, 1993 and Newer
• Force outboards, 9.9/15/25 HP, 1998
• All Mercury and Mariner outboards using clip-on type disconnects at both tank and engine ends

Replaces (OEM)

• No OEM cross-reference numbers listed for this part

Frequently Asked Questions

What is the Sierra 18-80402? The 18-80402 is a double sealed quick connect tank connector fitting used at the tank end of a marine outboard fuel line assembly, sold separately from the complete fuel line kit.

What thread size does the 18-80402 use? It has a 1/4 inch NPT thread connection.

Does the 18-80402 fit Mercury and Mariner outboards? Yes, the 18-80402 fits all Mercury and Mariner outboards that use clip-on type disconnects at both the tank end and the engine end of the fuel line.

Will the 18-80402 fit a Force outboard? It fits Force outboards rated 40 HP and larger (1993 and Newer) as well as Force 9.9/15/25 HP outboards from 1998.

What part does the 18-80402 mate with? The 18-80402 tank connector mates with Sierra connector 18-8091 to complete the fuel line hookup.

Does the 18-80402 include a fuel line hose? No, this listing is for the tank connector fitting only; it is sold separately from the complete 8 foot fuel line assemblies it is used with.

What are the dimensions of the 18-80402? The connector measures 5.31 x 2.94 x 1.5 inches.

How much does the 18-80402 weigh? It weighs 0.07 pounds.

Is the 18-80402 a genuine Sierra part? Yes, part number 18-80402 is a Sierra branded fuel line tank connector, not a generic substitute.

Where is the 18-80402 manufactured? The Sierra 18-80402 fuel connector is manufactured in Taiwan.

Is the 18-80402 a double sealed fitting? Yes, the 18-80402 is a double sealed quick connect type fitting designed for the tank end of the fuel line.

Why would I need to replace the 18-80402 separately? If only the tank-end connector on your fuel line has failed or is leaking, the 18-80402 lets you replace just that fitting instead of the entire fuel line assembly.