High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats
High-Quality Ignition Coil for Mercury Mariner Outboard 25HP 4-Stroke '98-'09, Replaces 859738T1 - 4Boats

Aftermarket Ignition Coil Mercury Mariner 25HP 339-859738T1 825101A2

MS-859738T1

  • Dispatched in 2-3 days
  • 30 Day Return Policy
  • Low stock - 2 items left
  • 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.
£79.00
/
Tax included.

Mercury Mariner 25HP Ignition Coil

1998–2009 FourStroke applications

This aftermarket ignition coil is listed for selected Mercury and Mariner 25HP FourStroke outboards produced approximately 1998–2009. It cross-references Mercury/Quicksilver, Yamaha and Parsun numbers used on related applications.

FITMENT CHECK: Confirm the engine serial number and the original coil/connector. The supplied serial range should be checked against the engine plate.

Key Features

  • ✔ Aftermarket replacement; not genuine Mercury
  • ✔ For selected 25HP FourStroke outboards
  • ✔ Cross-references 339-859738T1 and 825101A2
  • ✔ Direct-style connection and mounting
  • ✔ One coil supplied

Technical Specs

Part type Ignition coil
Typical application 25HP FourStroke
Approximate years 1998–2009
Quantity 1 coil
Primary reference 339-859738T1
4Boats SKU MS-859738T1

Compatibility / Fitment Guide

Listed for selected Mercury/Mariner 25HP (18.6kW) FourStroke applications from approximately 1998–2009. Referenced serial groups include 0G760300–0T408999, 0G960500-up and 0P017000–0P153499; verify the complete engine serial and parts catalogue.

Part Number Cross Reference

Mercury / Quicksilver 339-859738T1; 859738T1; 825101A2
Yamaha 65W-85570-00; 65W-85570-01
Parsun F25-05120000; PAF25-05120000
4Boats SKU MS-859738T1

Cross-references are for compatible applications only. This is an aftermarket component.

Questions & Answers

Is this genuine Mercury?

No. It is an aftermarket replacement.

Does it fit every 25HP FourStroke?

No. Check the serial number and coil reference.

Why are Yamaha and Parsun numbers listed?

Some related engine platforms use cross-referenced coil designs; all connections must still match.

What is included?

One ignition coil.

Note: Isolate the ignition system before fitting and confirm correct cable routing.

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

Back to Mercury / Mariner Outboard Parts

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.