Fuel Pump Tohatsu Nissan Mercury Johnson 4-Stroke 8-30HP 3H8-04000-1 803529T04

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£43.99

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Outboard Fuel Pump [3H8-04000-1]

Name: Fuel Pump Tohatsu Nissan Mercury Johnson 4-Stroke 8-30HP 3H8-04000-1 803529T04
Price: 43.99 GBP
Rating: 5 (1 reviews)

Premium Quality 4-Stroke Replacement Part

Restore your engine's performance with this high-grade mechanical fuel pump assembly. Specifically engineered for small 4-stroke outboard motors, this pump ensures a steady, reliable fuel flow from the tank to your carburettor or EFI system. Designed to withstand the rigours of saltwater and marine environments, it is a direct-fit replacement for Tohatsu, Mercury, and Johnson/Evinrude engines.

RELIABILITY: Manufactured in an ISO-certified facility to meet or exceed original equipment (OE) standards for pressure and flow rate.

Key Features

✔ Direct-fit mechanical lift pump
✔ Corrosion-resistant alloy housing
✔ Includes sealing O-ring and clips
✔ High-temp chemical resistant diaphragm
✔ Optimized for EFI and Carb models

Technical Specs

Engine Type:	4-Stroke
Pump Type:	Mechanical Diaphragm
Pressure Rating:	~4 PSI
Inlet/Outlet:	1/4" Barb
Weight:	0.2 kg (approx)

Compatibility / Fitment Guide

Make	Model / HP	Serial / Range Notes
Tohatsu / Nissan	8, 9.8, 9.9, 15, 18, 20, 25, 30 HP	4-Stroke (MFS / NSF Series)
Mercury / Mariner	9.9 HP EFI	Serial 1R008146 & Up
Mercury / Mariner	10, 15, 20 HP Carb	Serial 0R235949 & Up (2-Cyl)
Mercury / Mariner	25, 30 HP EFI	Serial 0R106999 & Up (3-Cyl)
Johnson / Evinrude	9.9, 15 HP	4-Stroke (BRP Models)

OEM Cross Reference

Tohatsu / Nissan	3H8-04000-0, 3H8-04000-1, 3H8-04000-2, 3H8-04000-3, 3H8040001M
Mercury Quicksilver	803529T01, 803529T02, 803529T03, 803529T04, 803529T05, 803529T06, 803529T07
Johnson Evinrude BRP	5041064, 5041530

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.

How do I know if it is compatible?

We recommend checking the SKU/MPN and Cross Reference list provided above. For Mercury engines, verifying your serial number (e.g., 0RXXXXXX) is the most accurate way to confirm fitment.

Will this work on a 2-Stroke outboard?

No, this specific pump is designed only for 4-stroke models between 8HP and 30HP. 2-stroke models typically use a different pressure diaphragm system.

Note: Please verify your original part number against the references above before purchasing. Domain: 4boats.co.uk

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Fuel Pump Tohatsu Nissan Mercury Johnson 4-Stroke 8-30HP 3H8-04000-1 803529T04