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Sierra 18-7966-1 Fuel / Water Separator KitProtect Your Boat Engine with Superior Fuel Filtration Nothing disrupts a day on the water like fuel related engine troubles. Water in your gasoline can lead to corrosion, injector clogs, and even complete breakdowns, especially in modern high performance outboards and inboards. This robust fuel water separator kit steps in as your first line of defense, tackling emulsified water and tiny contaminants before they reach your engine's sensitive
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Protect Your Boat Engine with Superior Fuel Filtration
Nothing disrupts a day on the water like fuel-related engine troubles. Water in your gasoline can lead to corrosion, injector clogs, and even complete breakdowns, especially in modern high-performance outboards and inboards. This robust fuel water separator kit steps in as your first line of defense, tackling emulsified water and tiny contaminants before they reach your engine's sensitive components.
Crafted for boaters who demand reliability, it excels in real-world conditions—from choppy bays to long offshore runs. By keeping your fuel clean, it ensures smoother idling, better acceleration, and fewer unexpected service calls.
Standout Features for Marine Performance
- Exceptional Water Removal: Captures over 98.8% of emulsified water, the sneaky kind that mixes invisibly with gasoline and wreaks havoc on fuel systems.
- Precision Particle Filtration: 10-micron media traps more than 90% of debris at that size and larger, shielding injectors from gritty buildup.
- High-Flow Design: Delivers a steady 90 gallons per hour, perfect for power-hungry engines without starving them of fuel under load.
- Complete Kit Ready for Install: Comes with a sturdy mounting bracket, high-quality filter element, and two brass pipe plugs (one 3/8-inch and one 1/4-inch) for versatile plumbing setups.
These aren't just specs—they translate to peace of mind. Imagine firing up your motor without hesitation, knowing contaminants are history.
Easy Setup and Long-Term Maintenance
Boat owners appreciate simplicity. Secure the bracket to a stable bulkhead or engine mount, connect your fuel lines to the inlet and outlet ports, and plug any unused fittings with the included brass pieces. Most setups take under an hour with basic tools—no specialized marine mechanic required.
Pro Tips for Peak Performance
- Position it low in the bilge for gravity-assisted water draining.
- Inspect the bowl regularly during routine checks; drain any accumulated water before it builds up.
- Replace the filter element every season or after 100 hours of operation, whichever comes first, to maintain top efficiency.
- Pair it with ethanol-free fuel when possible to minimize water attraction issues common in today's blends.
Regular upkeep like this extends engine life and keeps your adventures uninterrupted.
Why Boaters Trust This Separator Over Others
In the competitive world of marine aftermarket parts, reliability reigns supreme. This kit stands out with its proven track record in harsh saltwater environments, where rust and corrosion test every component. Unlike flimsy generics, the corrosion-resistant construction and precise engineering match or exceed OEM standards.
It's not just about filtering fuel; it's about preventing the costly domino effect: water leads to gelled fuel, which clogs filters, starves injectors, and strands you miles from shore. Boaters report fewer corrosion spots on pumps and injectors after switching, saving hundreds in repairs over time.
"Switched to this after a fuel-related no-start last summer. No issues since—runs like a dream even on E10 gas." – Experienced offshore angler
Solving Everyday Fuel Headaches
Water contamination sneaks in from condensation in tanks, bad marina pumps, or that one rainy fill-up. Emulsified water passes through standard filters, but this separator coalesces and traps it effectively. Small particles from tank rust or degraded hoses? Handled. High-flow needs for twin-engine setups or performance mods? Covered at 90 GPH.
Ideal for setups with electronic fuel injection (EFI), where even minor impurities can trigger check-engine lights or limp modes.
Frequently Asked Questions
What exactly does a fuel water separator do for my boat?
It separates water from gasoline, especially emulsified water that blends invisibly, and filters out solid particles. This protects fuel pumps, injectors, and carbs from damage, ensuring reliable starts and performance.
How efficient is the filtration in this kit?
Over 98.8% effective at removing emulsified water and more than 90% at capturing 10-micron particles or larger, striking a balance between clean fuel and unrestricted flow.
What's the flow rate, and will it work for big engines?
Rated at 90 gallons per hour, it's ample for most inboards and outboards, even those with high fuel demands during wide-open throttle.
Does the kit include everything needed for installation?
Yes—bracket for mounting, filter element, and two brass pipe plugs (3/8-inch and 1/4-inch) for customizing your fuel line connections.
How often should I service or replace the filter?
Drain the water bowl monthly or after every 25 hours. Swap the filter element annually, after 100 hours, or if flow restricts—whichever hits first.
Can this prevent issues with ethanol-blended fuels?
Absolutely. Ethanol attracts water, leading to phase separation. This kit removes that water proactively, reducing gelling and corrosion risks.
Is it suitable for both inboard and outboard motors?
Yes, designed to safeguard fuel injection systems in both, preventing damage from contaminated fuel in various marine applications.
Includes: Bracket, Filter and 2 brass pipe plugs (3/8" plug - 18-4264, 1/4" plug - 18-4256)
SKU: NVN-4002233
MPN: 18-7966-1
UPC: 808282228026
Sierra 18-7966-1 Fuel / Water Separator Kit
Item no
:
18349994810
US$ 47.49
Pay in 4 interest-free payments of $11.87 Learn more
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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