iFJF Marine Fuel Water Separator Element for R12T – 120AT NPT ZG1/4-19, Diesel Engine (Set of 3)

Overview

The iFJF Marine Fuel Water Separator Element is designed to work with the R12T fuel filtration line. This three-pack replaces common variants such as S3240, 18-7987, and RK10222, and it aligns with 120AT NPT ZG1/4-19 connections found on many diesel marine systems. Built to withstand the demands of marine use, it aims to help keep fuel clean and minimize water-related issues at the point of filtration.

What you get

• Three ready-to-use replacement filter elements for marine diesel filtration.
• Replaces S3240, R12T 120AT, 18-7987, and RK10222 variants for flexible compatibility.

Key features and potential benefits

• 10 micron filtration to reduce particulates and water contaminants in fuel lines.
• Designed for marine diesel systems with an indicative flow of up to 15 GPH on the R12T model, supporting steady fuel delivery in common boating scenarios.
• Head connection thread is M18x1.5 and bowl connection thread is M60x2.5, with 3/8 inch NPT compatibility in some outboard configurations.
• Sold as a convenient set of 3 to simplify maintenance and stocking.
• Regular inspection and replacement are advised to maintain filtration effectiveness and system cleanliness.

Fitment and maintenance tips

These elements are intended for diesel marine engines using the specified head and bowl fittings. When installing, confirm the head threads (M18x1.5) and bowl threads (M60x2.5) match your unit. In some cases, 3/8 inch NPT connections may apply to outboard configurations. Plan routine checks to support ongoing filtration performance.

Real-world use and considerations

For coastal cruises, inland passages, or saltwater outings, clean fuel can contribute to steadier performance and fewer fuel-line concerns. A 3-pack arrangement supports synchronized maintenance across multiple filter points, which can reduce downtime and simplify service planning. While the data describes specific filtration and flow characteristics, results depend on your engine setup and fuel quality.

Why choose iFJF

iFJF develops filtration components designed to endure harsh marine environments. The R12T water separator elements emphasize reliable filtration, straightforward replacement, and compatibility with common marine filter systems, offering a practical option for regular maintenance and dependable fuel management on the water.

Note: This description is informational. Actual performance depends on your vessel’s configuration, fuel quality, and maintenance practices.