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Description
Sierra 18-7977-1 MerCruiser Fuel Filter
Sierra replacement fuel filters are manufactured to meet or exceed OEM requirements.
Features:
- Micron rating: 20
- Includes 0-Rings
- Supersedes: 18-7977
It is recommended to change this filter and your 18-7715 Pre Fuel Filter at the same time for optimal engine performance.
Fits:
- 2004 & Newer MCM/MIE engine with Gen III fuel cooler
Interchangeable with:
- Mallory
- 9-37827
- MerCruiser Stern Drive
- 35-866171A01
- 35-8M0093688
Sierra 18-7977-1 MerCruiser Fuel Filter FAQs
What engines does the Sierra 18-7977-1 MerCruiser Fuel Filter fit?
The Sierra 18-7977-1 fuel filter fits 2004 and newer MCM/MIE engines with a Gen III fuel cooler.
What is the micron rating of the Sierra 18-7977-1 fuel filter?
The Sierra 18-7977-1 MerCruiser Fuel Filter has a 20-micron rating.
Does the Sierra 18-7977-1 fuel filter include O-rings?
Yes, the Sierra 18-7977-1 fuel filter includes O-rings.
What part number does Sierra 18-7977-1 supersede?
Sierra 18-7977-1 supersedes Sierra part number 18-7977.
Should I replace the pre fuel filter at the same time?
Yes, it is recommended to change this filter and the 18-7715 pre fuel filter at the same time for optimal engine performance.
What part numbers interchange with Sierra 18-7977-1?
The Sierra 18-7977-1 fuel filter interchanges with Mallory 9-37827 and MerCruiser Stern Drive part numbers 35-866171A01 and 35-8M0093688.
California Residents: 
WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov
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