CARMOCAR Fuel Filter Water Separator for Marine Outboards — 3/8" Barb x 1/4" NPT Brass Fittings, 10‑Micron Aluminum Housing

The CARMOCAR Fuel Filter Water Separator is a durable replacement fuel/water trap designed for marine outboard engines, compatible with multiple Mercury and Yamaha part numbers and featuring 3/8" barb x 1/4" NPT brass fittings.

Designed for boat owners and marine technicians, this fuel/water separator removes free and emulsified water plus particulate contamination from gasoline and diesel fuel systems. Built with a multi-layer 10-micron filter media inside a rugged aluminum housing and supplied with brass fittings, it fits common Mercury and Yamaha replacement part references to simplify swap-outs on many outboard installations.

How does this separator protect my outboard engine?

The separator captures water and particles before they reach fuel pumps, injectors, or carburetors, helping preserve performance and prolong component life. Its multi-layer 10-micron media is engineered to trap small debris while allowing steady fuel flow under normal operating pressures.

• 10-micron filtration rated over 92% efficient for small particles
• Water-trapping bowl design isolates free and emulsified water
• Aluminum housing resists corrosion and mechanical wear
• Reduces risk of injector or pump damage from contaminants

Will it fit my Mercury or Yamaha engine?

CARMOCAR designed this unit to be a direct-style replacement for a range of common OEM numbers, easing installation for many marine outboards. Still, verify fit by comparing your existing part number and physical fittings to the product photos and listed cross-references before purchasing.

• Replaces Mercury part numbers including 35-60494-1, S3213, 18-7932-1
• Compatible with some Yamaha replacement references (e.g., MAR-24563-03-00)
• Includes 3/8" barb x 1/4" NPT brass fittings for common plumbing setups
• Check OEM numbers and images to confirm compatibility

How is this separator constructed and maintained?

The unit pairs a robust aluminum body with brass fittings and a replaceable multi-layer filter element for longevity in marine environments. Routine checks for trapped water in the bowl and scheduled filter replacements will maintain optimal separation and flow.

• Durable aluminum housing minimizes corrosion in saltwater conditions
• Brass 3/8" barb and 1/4" NPT fittings for leak-resistant connections
• Serviceable bowl allows visual inspection and drainage of water
• One-year customer support period from purchase

What performance should I expect on my boat?

You can expect consistent fuel delivery with fewer contaminants reaching engine components, which can smooth operation and reduce maintenance caused by clogged lines or injectors. The design balances filtration efficiency with low pressure drop to preserve fuel pump performance.

• Lower pressure drop from 3/8" NPT ports maintains steady flow
• High particle capture rate helps prevent downstream clogging
• Visible bowl makes it easy to spot and remove collected water
• Suitable for both gasoline and diesel marine fuel systems

Who is this for? Boaters, marine mechanics, and DIY enthusiasts who need a reliable replacement fuel/water separator for outboard motors will appreciate the CARMOCAR unit. It's aimed at users seeking a rugged, serviceable separator compatible with popular Mercury and Yamaha part numbers, who want simple plumbing connections, visible water collection, and a long-lasting aluminum housing. Always confirm compatibility with your engine's OEM number and installation space prior to ordering.