Marine fuel tank cap with gauge for 12L and 25L portable outboard tanks
Replacement outboard fuel tank cap with mechanical level gauge
Black replacement fuel tank cap with gauge for Honda, Yamaha, Mercury, Suzuki boat tanks
Replacement cap with fuel gauge on red plastic boat fuel tank for Honda Yamaha Mercury Suzuki
Suzuki-compatible red portable outboard fuel tank with gauge cap
Honda-compatible red 3-gallon portable outboard fuel tank
Fuel tank gauge cap fitted to a portable marine fuel tank
Fuel tank cap with gauge and vent for portable outboard tanks
Mechanical fuel level gauge on a replacement marine tank cap
55mm threaded marine fuel tank cap with gauge
Fuel tank cap with gauge for Yamaha and Mercury portable tanks
Fuel tank cap gauge for Honda and Suzuki portable tanks
Portable outboard fuel tank replacement cap and gauge
Marine fuel cap with manual breather vent and level gauge
Marine fuel tank cap with gauge for 12L and 25L portable outboard tanks
Replacement outboard fuel tank cap with mechanical level gauge
Black replacement fuel tank cap with gauge for Honda, Yamaha, Mercury, Suzuki boat tanks
Replacement cap with fuel gauge on red plastic boat fuel tank for Honda Yamaha Mercury Suzuki
Suzuki-compatible red portable outboard fuel tank with gauge cap
Honda-compatible red 3-gallon portable outboard fuel tank
Fuel tank gauge cap fitted to a portable marine fuel tank
Fuel tank cap with gauge and vent for portable outboard tanks
Mechanical fuel level gauge on a replacement marine tank cap
55mm threaded marine fuel tank cap with gauge
Fuel tank cap with gauge for Yamaha and Mercury portable tanks
Fuel tank cap gauge for Honda and Suzuki portable tanks
Portable outboard fuel tank replacement cap and gauge
Marine fuel cap with manual breather vent and level gauge

Fuel Tank Cap with Gauge for Honda, Yamaha, Mercury & Suzuki 12L & 25L Tanks

mms-4114

  • Dispatched in 2-3 days
  • 30 Day Return Policy
  • In stock, ready to ship
  • Backordered, shipping soon
Our stock levels are dynamic and can change frequently. If a product appears to be in stock, it may have already sold out. Please contact us if you have any questions about availability. Thank you for your understanding.
£17.99
/
Tax included.

Marine Fuel Tank Cap with Gauge

Suits Honda, Yamaha, Mercury & Suzuki 12L / 25L Tanks

Stop guessing your remaining range on the water. This premium 4Boats / Aftermarket replacement fuel cap features a high-precision mechanical gauge, allowing you to monitor your fuel levels at a glance without opening the tank. Designed as a direct replacement for standard portable plastic tanks, it ensures a tight seal and reliable performance in harsh marine environments.

RELIABILITY: Built from UV-stabilised ABS plastic and corrosion-resistant components to meet or exceed OEM standards for outboard fuel systems.

Key Features

  • ✔ Integrated Gauge: Easy-to-read needle indicator.
  • ✔ Manual Breather: Knurled vent screw prevents vacuum lock.
  • ✔ Fuel-Grade Seal: High-quality gasket prevents leaks and vapours.
  • ✔ Universal Fit: Fits most 12L and 25L portable tanks.

Technical Specs

Material Marine ABS & Stainless Steel
Cap Thread Diameter 55mm (Approx.)
Sender Length 170mm
Tank Capacities 12L (3 Gal) & 25L (6.6 Gal)
Gauge Type Mechanical Float

Compatibility / Fitment Guide

Make/System Model/Application Notes
Yamaha Outboards All models using external 12L/24L/25L tanks Direct Replacement
Honda Outboards BF series with portable plastic tanks Standard 55mm Thread
Mercury / Mariner 2-Stroke & 4-Stroke Portable Systems Fits plastic tanks only
Suzuki / Tohatsu External tanks with mechanical senders Verified fit

OEM Cross Reference

Yamaha 6YL-24260-01 / 6YL-24260-00 / 6YL-24260-10
Honda 17500-ZV5-G01 (Assy)
Aftermarket Easterner C14541 / Scepter Compatible

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 thread size of your tank. This cap is designed for standard marine portable plastic tanks with a thread diameter of approximately 55mm.

Do I need to leave the vent open when using the engine?

Yes, the manual breather screw on top should be loosened while the engine is running to allow air into the tank, preventing a vacuum that could cause the engine to stall.

Note: Please verify your original part number or tank thread diameter against the references above before purchasing. Distributed by 4Boats UK.

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

Free delivery for most items over £150.

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

You may also like

Recently viewed

Why choose us

Quality marine parts and boat equipment from 4Boats UK

QUALITY MARINE PARTS

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

Untitled_1080_x_1080_px_2 - 4Boats

TRUSTED SUPPLIERS

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

Simple_Image_Play_Built_into_Routine_Cosmetics_TikTok_In-Feed_Ad_1080_x_1080_px_10 - 4Boats

PERSONAL SERVICE

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