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OEM Mercury Water Separating Fuel Filter
Mercury Fuel Filter 8M0166596 For 450R, 500R V8 & 500-600HP V12
The Mercury 8M0166596 fuel filter is an OEM Mercury water separating fuel filter used on select high-performance Mercury Racing V8 and large-displacement Mercury V12 outboards.
This filter fits Mercury Racing 450R and 500R V8 FourStroke outboards, along with Mercury 500HP-600HP V12 FourStroke outboards. It helps remove water and contaminants from the fuel system during scheduled maintenance.
Compatible Applications
| Brand / Family | Horsepower | Engine Platform | Application |
|---|---|---|---|
| Mercury Racing | 450R, 500R | V8 FourStroke | Water separating fuel filter |
| Mercury Verado / SeaPro | 500HP-600HP | V12 FourStroke | Water separating fuel filter |
This Mercury 8M0166596 fuel filter is for select Mercury Racing 450R and 500R V8 outboards and Mercury 500HP-600HP V12 outboards.
Always verify your engine model, serial number, and current filter number before ordering fuel system parts.
Part Numbers & Cross References
| Brand / Source | Part Number |
|---|---|
| Mercury Marine | 8M0166596 |
| Related Water-In-Fuel Sensor | 8M0157779 |
Related Fuel Sensor
Water-In-Fuel Sensor
Mercury 8M0157779 water-in-fuel sensor used with the 8M0166596 fuel filter assembly on compatible applications.
View ProductWhat This Fuel Filter is Used For
The Mercury 8M0166596 fuel filter is used to help remove water and contaminants from the fuel supply before fuel reaches sensitive engine components.
Clean fuel is especially important on high-performance Mercury Racing V8 and Mercury V12 outboards. Replacing the fuel filter during scheduled maintenance helps support fuel system reliability and engine performance.
Key Features and Benefits
- OEM Mercury water separating fuel filter
- Fits Mercury Racing 450R V8 outboards
- Fits Mercury Racing 500R V8 outboards
- Fits Mercury 500HP-600HP V12 FourStroke outboards
- Helps separate water from the fuel system
- Helps trap fuel contaminants before they reach the engine
- Used during scheduled fuel system maintenance
- Pairs with Mercury 8M0157779 water-in-fuel sensor
Part Details
- Part Number: 8M0166596
- Product Type: Water Separating Fuel Filter
- Brand: Mercury Marine
- Application: Mercury Racing V8 and Mercury V12 Outboards
- Common Fitment: 450R, 500R, 500HP V12, 600HP V12
- Related Sensor: 8M0157779 Water-In-Fuel Sensor
- OEM Mercury Part: Yes
FAQ
What engines does Mercury fuel filter 8M0166596 fit?
This filter fits select Mercury Racing 450R and 500R V8 outboards, along
with Mercury 500HP-600HP V12 FourStroke outboards.
Does this fit the Mercury 500R?
Yes. Mercury 8M0166596 is used on Mercury Racing 500R V8 applications.
Does this fit Mercury V12 outboards?
Yes. This filter is used on compatible Mercury 500HP-600HP V12 outboards.
What sensor goes with this fuel filter?
The related water-in-fuel sensor is Mercury part number 8M0157779, linked above.
Is this a genuine Mercury fuel filter?
Yes. This is an OEM Mercury Marine fuel filter.
When should I replace this fuel filter?
Replace the fuel filter during scheduled maintenance or any time fuel
contamination or water-in-fuel concerns are found.
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.
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.
- Fuel filters must be new, unused, and in original packaging.
- Installed or fuel-contaminated filters 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
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18458A4
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18-7968
18458A4
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9-37806
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18-7967
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35-18458A 3
35-18458Q 3
9-37805
18458Q12
18458Q4
18458T12
18458T4
184584
184585
8M0095659
8M0095659
8M0157616
8M0157620
6C5-13915-00-00
6C5-13915-00-00
6C5-13915-01-00
65L-13915-00-00
65L-13915-09-00
808504
808504T1
8085041
Mercury 75-115 EFI 4 Stroke
60C-24560-01-00
881538T02
881538T1
30hp 2013-2024
40hp 2008-2024
50hp 2005-2024
60hp 2005-2024
70hp 2006-2024
75hp 2005-2017
90hp 2005-2013
115hp 2000-2005, 2010-2014
155hp 2001
Mercury
75-115hp 4 Stroke
6D8-24560-01-00
6D8-24560-02-00
6D8-24560-08-00
6D8-24560-09-00
68V-24560-00-00
68V-24560-01-00
881538T02
881538T1
68V-24563-00-00
8M0168897
881540
646-24251-01-00
646-24251-02-00
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