Fuel Water Separator Assembly 

Key Features:

  • Sierra fuel water separators remove over 99.8% of emulsified water from your gasoline
  • Sierra's 10 micron filters are over 90% efficient at removing particles as small as 10 micron
  • All filters flow at 90 GPH to feed even the hungriest motor
  • Prevent damage to sensitive inboard, sterndrive and outboard fuel injection systems

Additional Details:

  • Material: Aluminum (High Capacity Filter)
  • Rating: 10 Micron
  • Size: 1/4" or 6.4mm

Interchanges/Replaces

Yamaha Outboard

  • MAR-SEPAR-AT-OR

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-7866Mallory
  • 9-37807
Yamaha Outboard
  • MAR-FUELF-IL-TR
1Fuel Filter N/A
18-7853-1GLM
  • 25000
Mallory
  • 9-37860
Mercruiser Stern Drive
  • 55481
  • 89876
  • 89876A3
Yamaha Outboard
  • MAR-FLTHD-AL-12
1Fuel Water Separator Bracket N/A
18-4256Mallory
  • 9-40545
2Pipe Plug N/A
MSRP: $58.99
Your Price: $49.99
You Save: 15% off MSRP!

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