Sierra 18-7919 Fuel/Water Separator Element – 10 Micron | Mercury, Yamaha, Racor Cross-Reference

Name: Sierra 18-7919 Fuel/Water Separator Element – 10 Micron | Mercury, Yamaha, Racor Cross-Reference
Brand: LNS
SKU: 47-7919
Price: 47.29 CAD
Availability: InStock

$47.29 - $47.29

$47.29

$47.29 - $47.29

$47.29

Item locally warehoused

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Sierra 18-7919 Fuel/Water Separator Element – 10 Micron

Part Number: 18-7919 (distributor SKU: 47-7919)
Brand: Sierra International
UPC: 808282199838
Type: Spin-on replacement fuel/water separator element
Filtration rating: 10 micron
Thread: 11/16"-16
Flow rating: Up to 90 GPH

Product Overview

10-micron spin-on replacement fuel/water separator element for compatible marine gasoline fuel systems. Removes over 99.8% of emulsified water and is over 90% efficient at capturing particles as small as 10 microns. Features an open-bottom design that accepts a compatible drain/collection bowl, allowing separated water to be easily drained during service. Cross-references Mercury, Yamaha, Racor, and other OEM part numbers.

Filtration: 10 micron
Removes >99.8% of emulsified water
>90% efficient at particles as small as 10 microns
Thread: 11/16"-16 spin-on
Flow rate: up to 90 GPH
Open-bottom design — accepts compatible drain/collection bowl
For above-deck/outboard: compatible with clear AquaVue™ collection bowls
For below-deck: use a flame-resistant metal collection bowl per USCG requirements

Compatible Applications

Mercury FourStroke and EFI outboards, selected 40–150 HP (confirm by engine model and serial number)
Yamaha outboards specifying MAR-24563-00-00 or MAR-24563-03-00
Compatible Sierra fuel/water separator assemblies using 11/16"-16 spin-on filter format
Racor spin-on assemblies cross-referencing S3213 or S3220TUL
Any installation currently using Sierra 18-7919, Mercury 35-809097, 35-8M0103095, or Quicksilver 35-8M0146203

Fitment Note: Confirm the separator head uses the 11/16"-16 spin-on thread format and accepts an open-bottom bowl before ordering. Verify engine model and serial number for Mercury and Yamaha outboard applications.

OEM Cross-Reference

Sierra: 18-7919 / 47-7919
Mercury: 35-809097
Mercury: 35-8M0103095
Quicksilver: 35-8M0146203
Yamaha: MAR-24563-00-00
Yamaha: MAR-24563-03-00
Racor: S3213
Racor: S3220TUL
Mallory: 9-37811
EMP: 35-37811
UPC: 808282199838

Service Interval

Replace at the service interval specified by the engine or fuel system manufacturer — typically every 100 hours or annually, whichever comes first. Replace sooner if fuel flow becomes restricted, excessive water accumulates in the bowl, or contamination is visible during bowl inspection.

Installation Notes

Drain the collection bowl before removing the old filter element
Inspect and clean the bowl and mating sealing surfaces
Lightly lubricate the new element’s gasket with clean fuel before installation
Spin the new element on by hand until the gasket contacts the head, then tighten a further 3/4 turn
Prime the fuel system and inspect all connections for leaks before starting the engine
Below-deck installations must use a USCG-compliant flame-resistant metal bowl — do not use a clear plastic bowl below deck

Technical FAQ

What is the difference between 10 micron and 30 micron? A 10-micron filter captures finer particles and more water than a 30-micron filter, but may require more frequent replacement in fuel systems with high contamination levels. 10 micron is the recommended rating for most marine gasoline applications.

Do I need a separate collection bowl? Yes — this is the spin-on element only. A compatible collection bowl is required and must be matched to your installation location (clear bowl for above deck; metal bowl for below deck).

Related Products

Parts Desk Insights

The key specifications for 18-7919 are 10 micron + 11/16"-16 spin-on thread + open-bottom bowl-compatible design. This is one of the most broadly cross-referenced marine fuel/water separator elements in the catalog — the Mercury, Yamaha, and Racor cross-references make it a strong universal replacement for many common OEM assemblies. The most common issue is customers not confirming the bowl requirement — this element needs a separate bowl, and below-deck installations must use a metal bowl per USCG rules. Also watch for customers confusing this 10-micron element with the 30-micron version; always confirm the filtration rating matches what’s specified for their fuel system.

Shipping information

In-stock and OEM parts: ship same or next business day.

Locally warehoused items: ship within 1-3 business days.

Special-order items: timeline confirmed after order.

Returns & warranty

Returns & Satisfaction Guarantee

We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.

If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.

To qualify for a return:

Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale

Important:

Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.

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