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Home  >  Outboard  >  Mercury Outboard  >  Fuel / Carburetion System | Mercury Outboard  >  Fuel Filters | Mercury Outboard
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Fuel Filter

Mercury 175-300HP V6 & V8 4 Stroke
Item#:
3660
Cross Reference#:
8M0106635
8M0176313
Manufacturer Item:
8M0106635
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
38.10
Each

Fuel Filter, Inline Metal 3/8"

Mercury 2.5 EFI Offshore Kinsler
Item#:
818700
Cross Reference#:
818700
818700T
Manufacturer Item:
818700T
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
106.49
Each

Fuel Filter

SportJet 175-240 EFI
Item#:
89615
Cross Reference#:
852546
852546T
889615
889615T
Manufacturer Item:
889615T
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
21.29
Each

Fuel Filter, Inline 5/16"

Mercury 40-115 EFI 4 Stroke All Verado
Item#:
8798
Cross Reference#:
HZVL16910003
16910-ZVL-003
18-7718
8M0153652
8798P
879885K
879885Q
879885T
Manufacturer Item:
879885Q
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
16.79
Each

Fuel Filter Cartridge Insert

Fits Mercury 75-300 DFI Fits Verado 135-300 L6
Item#:
884380
Cross Reference#:
18-7981
24964
8M0020349
8M0060041
8M0122423
884380T
884380T
Manufacturer Item:
8M0060041
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
25.45
Each

Fuel Filter Cartridge, (OE)

Mercury 75-300 DFI Verado 135-300
Item#:
884380-1
Cross Reference#:
18-7981
8M0020349
8M0060041
8M0122423
884380T
Manufacturer Item:
8M0060041
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
41.99
Each

Fuel Strainer

Mercury 2002-Up
Item#:
892267534
Cross Reference#:
892267534
Manufacturer Item:
892267534
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
26.99
Each

Filter, Fuel Pump

Mercury DFI Jetboat
Item#:
884743
Cross Reference#:
884743
Manufacturer Item:
884743
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
41.49
Each

Fuel Filter

Mercury 30-60HP EFI 4-Stroke Part # 8815 for rep Filter
Item#:
879884P
Cross Reference#:
18-79965
61N-24560-00-00
61N-24560-10-00
655-24560-00-00
655-24560-01-00
655-24560-60-00
879884T
Manufacturer Item:
879884T
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
18.49
Each

Fuel Filter

Mercury 175-300HP V6 & V8 200-400Hp Verado
Item#:
4162
Cross Reference#:
8M0126144
Manufacturer Item:
8M0126144
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
87.54
Each

Mercury Water-In-Fuel Sensor 8M0157779 350-600HP Verado & Racing

OEM Sensor for L6 Verado, 350-425HP V10, 450R-500R V8 & 500-600HP V12

OEM Mercury Water-In-Fuel Sensor

Mercury Water-In-Fuel Sensor 8M0157779 For Verado, 450R, 500R, V10 & V12

The Mercury 8M0157779 water-in-fuel sensor is an OEM Mercury fuel system sensor used with compatible Mercury water-separating fuel filter assemblies.

This sensor fits select L6 Verado applications, Mercury Racing 450R and 500R V8 outboards, Mercury 350HP-425HP V10 outboards, and Mercury 500HP-600HP V12 outboards.

Compatible Applications

Engine Family Horsepower / Model Engine Platform Application
Mercury Verado L6 Verado Models Inline 6-Cylinder Verado Water-in-fuel sensor
Mercury Racing 450R, 500R V8 FourStroke Water-in-fuel sensor
Mercury Verado / FourStroke 350HP-425HP V10 FourStroke Water-in-fuel sensor
Mercury Verado / SeaPro 500HP-600HP V12 FourStroke Water-in-fuel sensor
Important Fitment Note:

This Mercury 8M0157779 water-in-fuel sensor is used on select L6 Verado, 450R-500R V8 Racing, 350HP-425HP V10, and 500HP-600HP V12 outboard fuel filter applications.

Always verify your engine model, fuel filter assembly, and current sensor number before ordering.

Part Numbers & Cross References

Brand / Source Part Number
Mercury Marine 8M0157779
Related Fuel Filter 8M0166596

Related Fuel Filter

Mercury Fuel Filter

Mercury Fuel Filter 8M0166596

OEM Mercury water-separating fuel filter used with this sensor on compatible 450R, 500R V8 and 500HP-600HP V12 applications.

View Product

What This Water-In-Fuel Sensor is Used For

The Mercury 8M0157779 water-in-fuel sensor monitors the fuel filter assembly for water accumulation and helps alert the operator when water is detected in the fuel system.

Water contamination can cause poor performance, corrosion, injector problems, and fuel system damage. Replacing a damaged or faulty water-in-fuel sensor helps maintain proper warning system function.

Key Features and Benefits

  • OEM Mercury water-in-fuel sensor
  • Fits select L6 Verado applications
  • Fits Mercury Racing 450R and 500R V8 outboards
  • Fits Mercury 350HP-425HP V10 outboards
  • Fits Mercury 500HP-600HP V12 outboards
  • Used with compatible Mercury water-separating fuel filter assemblies
  • Helps detect water accumulation in the fuel system
  • Pairs with Mercury fuel filter 8M0166596 on compatible applications

Part Details

  • Part Number: 8M0157779
  • Product Type: Water-In-Fuel Sensor
  • Brand: Mercury Marine
  • Application: Mercury Verado, Racing V8, V10, and V12 fuel systems
  • Common Fitment: L6 Verado, 450R, 500R, 350-425HP V10, 500-600HP V12
  • Related Fuel Filter: 8M0166596
  • OEM Mercury Part: Yes

FAQ

What engines does Mercury 8M0157779 fit?
This sensor fits select L6 Verado applications, Mercury Racing 450R and 500R V8 outboards, Mercury 350HP-425HP V10 outboards, and Mercury 500HP-600HP V12 outboards.

Does this fit the Mercury 500R?
Yes. Mercury 8M0157779 is used on compatible Mercury Racing 500R V8 fuel filter applications.

Does this fit Mercury V10 outboards?
Yes. This sensor fits compatible Mercury 350HP-425HP V10 outboards.

What fuel filter goes with this sensor?
The related Mercury water-separating fuel filter is part number 8M0166596, linked above.

What does a water-in-fuel sensor do?
It detects water accumulation in the fuel filter assembly so the engine warning system can alert the operator to fuel contamination.

Is this a genuine Mercury part?
Yes. This is an OEM Mercury Marine water-in-fuel sensor.

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

  • Free shipping on orders over $100 continental U.S.
  • Orders ship via UPS, USPS, and FedEx.
  • Orders received before 5:30 PM EST ship the same business day.
  • Typical delivery time is 1-5 business days.

30-Day Return Policy

  • Returns accepted within 30 days of delivery.
  • Electrical sensors must be new, unused, and uninstalled.
  • Installed or fuel-contaminated sensors are not returnable.
  • Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000

Searchable Terms

8M0157779, Mercury 8M0157779, Mercury water in fuel sensor, Mercury water-in-fuel sensor, Mercury fuel filter sensor, Mercury Verado fuel sensor, L6 Verado water in fuel sensor, Mercury 450R water in fuel sensor, Mercury 500R water in fuel sensor, Mercury Racing fuel sensor, Mercury V8 water in fuel sensor, Mercury V10 water in fuel sensor, Mercury V12 water in fuel sensor, Mercury 350HP V10 fuel sensor, Mercury 400HP V10 fuel sensor, Mercury 425HP V10 fuel sensor, Mercury 500HP V12 fuel sensor, Mercury 600HP V12 fuel sensor, 8M0166596, Mercury water separating fuel filter sensor

Item#:
8M0157779
Cross Reference#:
8M0157779
Manufacturer Item:
8M0157779
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
64.99
Each

Adapter, Fuel Filter

Mercury 75-300 DFI Verado 135-300
Item#:
96661P
Cross Reference#:
896661
Manufacturer Item:
896661
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
5.04
Each
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