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Fuel and Water Sensor Assembly 8M0021043

Satisfaction rating 5 out of 5 (9 Ratings)
$32.95
Save $3.13 (9%)
5 in stock Ships Immediately

Product Description

Mercury factory part. Search for more factory parts & parts diagrams.

Product Questions

There are no questions for this product. Ask a new question and receive an answer, directly from our support staff.

9 Product Reviews

Opti 200

Repair Difficulty
Easy
Repair Time
Less than 30 mins
Ok
by

Problem fixed: 4 beeps every 2 min

Took out old one put in new

Good no problems
by

Mercury 225 Optimax

Repair Difficulty
Easy
Repair Time
Less than 30 mins
Exact part I needed, best price I could find, very happy with the overall purchase.
by

Problem fixed: Fuel leaking out of motor area, high idle.

The epoxy that is used in the water/fuel sensor part seems to last about 5 years or so. I've had two of these go out on me . The boat will still run but you will notice fuel behind the motor and a high idle. Very easy to replace need to use a 5/8 box end wrench and disconnect the wire clip and install new sensor part.

Mercury 225

Fast shipping, and no issues with the product, what more can you ask for. Good job team!
by

Excellent no problems
by

Mercury Optimax 200

Repair Difficulty
Easy
Repair Time
Less than 30 mins
Great
by

Problem fixed: Some slight missing on idling and revving of engine at start up.

Squeezed fuel bulb and noticed fuel leak out of water sensor in vapor separator. Unplugged and screwed sensor, screwed new sensor back in. Ran perfect!

by

by

Mercury 225

Repair Difficulty
Easy
Repair Time
Less than 30 mins
Great talking to the tech service guys. They helped me so much !
by

Problem fixed: Kept turning off along w bells.

Unscrewed part , put back and plugged the water sensor in.

Product Fitment Grid

This guide is to be used as a reference only. You must verify fitment using your model or serial number.

BRAND MODEL 2000 2003 2004 2005 2006 2007 2008 2009 2012 2013
Mariner Outboard 75DFI [ELPTO SW] - - - - x - - - - -
Mariner Outboard 75DFI [ELPTO] - - - x - - - - - -
Mariner Outboard 90DFI [ELPTO SW] - - x x x - - - - -
Mariner Outboard 90DFI [ELPTO] - - x x - - - - - -
Mariner Outboard 90DFI [EXLPTO SW] - - - x x - - - - -
Mariner Outboard 115DFI [ELPTO SW] - - x x x - - - - -
Mariner Outboard 115DFI [ELPTO] - - x x x - - - - -
Mariner Outboard 115DFI [EXLPTO SW] - - x x x - - - - -
Mariner Outboard 200DFI [L DIG] - x x x - - - - - -
Mariner Outboard 200DFI [L SW] - - - - x - - - - -
Mariner Outboard 200DFI [XL DIG SW] - x x x x - - - - -
Mariner Outboard 200DFI [XL SW] - - - - x - - - - -
Mariner Outboard 225DFI [CXL DIG SW] - x x - - - - - - -
Mariner Outboard 225DFI [L DIG] - x - x - - - - - -
Mariner Outboard 225DFI [L SW] - - - - x - - - - -
Mariner Outboard 225DFI [L] - x x - - - - - - -
Mariner Outboard 225DFI [XL DIG SW] - x x x x - - - - -
Mercruiser ZEUS DRV [PT 1.34:1] - - - - - - x x x -
Mercruiser ZEUS DRV [PT 1.50:1] - - - - - x - x x -
Mercruiser ZEUS DRV [PT 1.75:1] - - - - - x x - - -
Mercruiser ZEUS DRV [PT 1.79] - - - - - - - x x -
Mercruiser ZEUS DRV [PT 1.87:1] - - - - - x - - - -
Mercruiser ZEUS DRV [PT 1.95] - - - - - - - x x -
Mercruiser ZEUS DRV [PT 2.06] - - - - - - - x x -
Mercruiser ZEUS DRV [PT 2.1:1] - - - - - x x - x -
Mercruiser ZEUS DRV [PT 2.24:1] - - - - - - - x x -
Mercruiser ZEUS DRV [PT 3.10:1] - - - - - x x - - -
Mercruiser ZEUS DRV [STB 1.34:1] - - - - - - x x x -
Mercruiser ZEUS DRV [STB 1.50:1] - - - - - x x x x -
Mercruiser ZEUS DRV [STB 1.75:1] - - - - - x x - - -
Mercruiser ZEUS DRV [STB 1.79] - - - - - - - x x -
Mercruiser ZEUS DRV [STB 1.87:1] - - - - - x - - - -
Mercruiser ZEUS DRV [STB 1.95] - - - - - - - x x -
Mercruiser ZEUS DRV [STB 2.06] - - - - - - - - x -
Mercruiser ZEUS DRV [STB 2.1:1] - - - - - x x - x -
Mercruiser ZEUS DRV [STB 2.24:1] - - - - - - - x x -
Mercruiser ZEUS DRV [STB 3.10:1] - - - - - x - - - -
Mercruiser Race Sterndrive ZEUS DRV [PT 2.24:1] - - - - - - - x - -
Mercury Miscellaneous 300 XS [CL SM] - - - - x - - - - -
Mercury Outboard 75DFI [ELPTO SW] - - - - x - - - - -
Mercury Outboard 75DFI [ELPTO] - - - x - - - - - -
Mercury Outboard 90DFI - - x - - - - - - -
Mercury Outboard 90DFI [ELPTO SW] - - x x x - - - - -
Mercury Outboard 90DFI [ELPTO] - - x x - - - - - -
Mercury Outboard 90DFI [EXLPTO SW] - - x x x - - - - -
Mercury Outboard 90DFI [EXLPTO] - - x - x - - - - -
Mercury Outboard 115DFI [ELPTO DIG] - - x - - - - - - -
Mercury Outboard 115DFI [ELPTO SW] - - x x x - - - - -
Mercury Outboard 115DFI [ELPTO] - - - x - - - - - -
Mercury Outboard 115DFI [EXLPTO SW] - - x x x - - - - -
Mercury Outboard 115DFI [EXLPTO] - - x x x - - - - -
Mercury Outboard 115DFI [JET 80] - - - - x - - - - -
Mercury Outboard 200DFI [CXL DIG SW] - x x x x - - - - -
Mercury Outboard 200DFI [CXL DIG] - x x x x - - - - -
Mercury Outboard 200DFI [CXXL DIGSW] - x x - - - - - - -
Mercury Outboard 200DFI [L DIG SW] - - - x x - - - - -
Mercury Outboard 200DFI [L DIG] - x x x x - - - - -
Mercury Outboard 200DFI [L SW] - - - - x - - - - -
Mercury Outboard 200DFI [L] - - - x - - - - - -
Mercury Outboard 200DFI [XL DIG SW] - x x x x - - - - -
Mercury Outboard 200DFI [XL DIG] - x x x x - - - - -
Mercury Outboard 200DFI [XL SW] - - - - x - - - - -
Mercury Outboard 200DFI [XXL DIG SW] - x x - - - - - - -
Mercury Outboard 200DFI [XXL DIG] - x - - - - - - - -
Mercury Outboard 225DFI [CXL DIG SW] - x x x x - - - - -
Mercury Outboard 225DFI [CXL DIG] - x x x x - - - - -
Mercury Outboard 225DFI [CXL SW] - x x x x - - - - -
Mercury Outboard 225DFI [CXL] - x x - x - - - - -
Mercury Outboard 225DFI [CXXL DIGSW] - x x x x - - - - -
Mercury Outboard 225DFI [CXXL DIG] - x x x x - - - - -
Mercury Outboard 225DFI [CXXL SW] - - - - x - - - - -
Mercury Outboard 225DFI [CXXL] - x x x x - - - - -
Mercury Outboard 225DFI [L DIG SW] - - - - x - - - - -
Mercury Outboard 225DFI [L DIG] - x x x x - - - - -
Mercury Outboard 225DFI [L PROXS] - - - x x - - - - -
Mercury Outboard 225DFI [L SW] - - - - x - - - - -
Mercury Outboard 225DFI [L XS] - - - - - - - x - -
Mercury Outboard 225DFI [L] - x x x - - - - - -
Mercury Outboard 225DFI [XL DIG SW] - x x x x - - - - -
Mercury Outboard 225DFI [XL DIG] - x x x x - - - - -
Mercury Outboard 225DFI [XL PROXS] - - - - x - - - - -
Mercury Outboard 225DFI [XL SW] - x - x x - - - - -
Mercury Outboard 225DFI [XL] - x - x x - - - - -
Mercury Outboard 225DFI [XXL DIG SW] - x x x x - - - - -
Mercury Outboard 225DFI [XXL DIG] - x x x x - - - - -
Mercury Outboard 225DFI [XXL SW] - x - x x - - - - -
Mercury Outboard 225DFI [XXL] - x - - - - - - - -
Mercury Outboard 250DFI [L PROXS] - - - - x - - - - -
Mercury Outboard 250DFI [L XS] - - - - - - - x - -
Mercury Outboard 250DFI [XL PROXS] - - - - x - - - - -
Mercury Race Outboard 225DFI [L PROXS] - - - x - - - - - -
Mercury Race Outboard 225SPTXS [L SM] - - - - x - - x - -
Mercury Race Outboard 250 XS [CL SM] - - - - x - - - - -
Mercury Race Outboard 250 XS [CXL FM] - - x x x - - - - -
Mercury Race Outboard 250 XS [CXXL FM] - - x x x - - - - -
Mercury Race Outboard 250 XS [L NO G/C] - - x x x - - - - -
Mercury Race Outboard 250 XS [L SM] - - x x x - - - - -
Mercury Race Outboard 250 XS [L TM] - - x x x - - - - -
Mercury Race Outboard 250 XS [XL FM] - - x x x - - - - -
Mercury Race Outboard 250 XS [XL NO G/C] - - - - x - - - - -
Mercury Race Outboard 250 XS [XL TM] - - - - x - - - - -
Mercury Race Outboard 250 XS [XXL FM] - - x x x - - - - -
Mercury Race Outboard 250SPTXS [L SM] x - - - - - - x - x
Mercury Race Outboard 3.0L JP [CXL FM] - - - x - x - - - -
Mercury Race Outboard 3.0L JP [CXXL FM] - - - x - x - - - -
Mercury Race Outboard 3.0L JP [XL FM] - - - x - x - - - -
Mercury Race Outboard 3.0L JP [XXL FM] - - - x - x - - - -
Mercury Race Outboard 300 XS [CL SM] - - - - x - - - - x
Mercury Race Outboard 300 XS [CXL FM] - - - - x - - - - x
Mercury Race Outboard 300 XS [CXL SM] - - - - x - - - - x
Mercury Race Outboard 300 XS [CXXL FM] - - - - x - - - - x
Mercury Race Outboard 300 XS [CXXL SM] - - - - x - - - - x
Mercury Race Outboard 300 XS [L SM] - - - - x - - - - x
Mercury Race Outboard 300 XS [L TM] - - - - x - - - - x
Mercury Race Outboard 300 XS [XL FM] - - - - x - - - - x
Mercury Race Outboard 300 XS [XL SM] - - - - x - - - - x
Mercury Race Outboard 300 XS [XL TM] - - - - x - - - - -
Mercury Race Outboard 300 XS [XXL FM] - - - - x - - - - x
Mercury Race Outboard 300 XS [XXL SM] - - - - x - - - - x

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Due to manufacturer policy OEM Mercury products can only be shipped to addresses within the United States.