Name: Fuel Pump Tohatsu Nissan Mercury Johnson 4-Stroke 8-30HP 3H8-04000-1 803529T04
Brand: Mercury
SKU: 803529T04
Price: 43.99 GBP
Availability: InStock

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

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£43.99

Tax included.

Outboard Fuel Pump [3H8-04000-1]

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

For the products under £150 the shipping is £6.99.

Free delivery for most items over £150.

Why choose us

QUALITY MARINE PARTS

We source dependable marine products from established suppliers and continually refine our range using customer feedback.

TRUSTED SUPPLIERS

We work with trusted marine suppliers and distribution partners to provide reliable parts, equipment and fulfilment.

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PERSONAL SERVICE

Every order is checked by the 4Boats team. Contact us before ordering if you need help with part numbers, compatibility or availability.

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