EMP Fuel Pump Repair Kit 1399-39030, Replaces Mercury 18-7818-1, Fits 115 HP 4-Cylinder Outboards Serial B209468 & Up

The EMP Fuel Pump Repair Kit 1399-39030 is a replacement fuel pump rebuild kit for Mercury 115 HP 4-cylinder outboard engines, serial number B209468 and up. It is built as a direct equivalent to the Mercury Quicksilver fuel pump kit 18-7818-1, giving outboard owners and marine repair shops a way to restore fuel pump function on qualifying engines without sourcing the original manufacturer part. Fuel pump diaphragms and internal components wear over time from constant flexing and exposure to ethanol-blended fuel, leading to low fuel pressure, hard starting, stalling at idle, or a rich/lean running condition. This kit is intended to service the fuel pump on the applicable Mercury 115 HP 4-cylinder powerhead so the pump can be rebuilt in place rather than replaced as a complete assembly.

Because fitment on outboard fuel pumps is tied to the engine's serial number range, confirm the engine falls within serial number B209468 and up before ordering, as earlier serial numbers may use a different fuel pump kit.

Specifications

• Brand: EMP
• Manufacturer Part Number: 1399-39030
• Product Category: Mercury Outboard Fuel Pump Kit
• Engine Fitment: Mercury 115 HP, 4 Cylinder
• Serial Number Range: B209468 and up
• Weight: 0.033 pounds
• UPC: 840080472164

Fitment

• Mercury 115 HP, 4 Cylinder outboard, serial number B209468 and up

Replaces (OEM)

• 18-7818-1

Frequently Asked Questions

What engine does the EMP 1399-39030 fuel pump kit fit? It fits Mercury 115 HP, 4-cylinder outboard engines with serial number B209468 and up.

Does 1399-39030 replace the Mercury 18-7818-1 fuel pump kit? Yes, EMP 1399-39030 is a direct replacement for Mercury Quicksilver fuel pump kit 18-7818-1.

How much does this fuel pump kit weigh? The EMP fuel pump repair kit 1399-39030 weighs 0.033 pounds.

How do I know if my engine's serial number qualifies for this kit? Check the serial number plate on the Mercury 115 HP 4-cylinder powerhead; this kit, 1399-39030, applies to serial number B209468 and up.

Is this an OEM Mercury part or an aftermarket replacement? EMP 1399-39030 is an aftermarket fuel pump repair kit manufactured as a functional replacement for Mercury part 18-7818-1.

What symptoms indicate I need to rebuild my outboard's fuel pump? Hard starting, stalling at idle, and low fuel pressure on a Mercury 115 HP 4-cylinder outboard commonly point to a worn fuel pump that this repair kit, 1399-39030, is designed to service.

Can I use this kit on a 6-cylinder Mercury outboard? No, EMP 1399-39030 is specified for the 115 HP 4-cylinder Mercury outboard, not 6-cylinder engines.

What is the UPC for this product? The EMP Fuel Pump Repair Kit 1399-39030 has UPC 840080472164.

Will this kit work on engines with a serial number below B209468? This is not confirmed; 1399-39030 is specified for serial number B209468 and up, so an engine below that range may require a different fuel pump kit.

What part number should I reference when ordering this kit? Order using EMP part number 1399-39030, which cross-references to Mercury 18-7818-1.