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Sierra Marine Parts Catalog: Accessories Miscellaneous

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FUEL WATER SEPARATORS
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 @ 90 GPH to feed even the hungriest motor.
Sierra 10 micron filters are recommended to prevent damage to sensitive inboard, sterndrive and outboard fuel injection systems.
- UNIvERSAL DESIGN -
FUEL WATER SEPARATOR BRACKETS
Part #
Thread
Material
Replaces
18-7777
1/4"
Stainless Steel
Yamaha MAR-FLTHD-SS-12
18-7776
3/8"
Stainless Steel
18-7853-1
1/4"
Aluminum
Mercury 89876A3
Yamaha MAR-FLTHD-AL-12
18-7775
3/8"
Aluminum
FILTERS
Micron
Part #
Description
Rating
Replaces
18-7944
Short - 3.875"
10
Mercury - 35-807172, 35-802893Q
18-7945
Long - 4.35"
10
Mercury - 35-802893Q
Yamaha - ABB-FUELF-IL-TR
18-7866
High Capacity - 6"
10
Yamaha - MAR-FUELF-IL-TR
18-7967
V6 EFI 1995-Earlier
with sensor
10
Mercury - 35-18458Q3
18-7968
V6 EFI 1996-Up
with sensor
10
Mercury - 35-18458Q4
18-7844
Short - 3.875"
21
Mercury - 35-807172, 35-802893Q
18-7845
Long - 4.35"
21
Mercury - 35-802893Q
Yamaha - ABB-FUELF-IL-TR
FUEL WATER SEPARATOR KITS
Micron
Part #
Kit Type
Rating
Contents
Replaces
18-7983-1
1/4" Aluminum
10
1 - 18-7944 &
Mercury - 35-802893A4, Q4,
(Short Filter)
1 - 18-7853-1
35-60494A4
18-7982-1
1/4" Aluminum
10
1 - 18-7945 &
(Tall Filter)
1 - 18-7853-1
18-7966-1
1/4" Aluminum
10
1 - 18-7866 &
Yamaha - MAr-SepAr-AT-or
(High Capacity Filter)
1 - 18-7853-1
18-7986-1
3/8" Aluminum
10
1 - 18-7945 &
(Tall Filter)
1 - 18-7775
18-7984-1
1/4" Stainless Steel
10
1 - 18-7945 &
Yamaha - MAr-SprTr-HD-SS
(Tall Filter)
1 - 18-7777
18-7985-1
3/8" Stainless Steel
10
1 - 18-7945 &
(Tall Filter)
1 - 18-7776
18-7848-1
1/4" Aluminum
21
1 - 18-7844 &
Mercury - 35-802893A4, Q4,
(Short Filter)
1 - 18-7853-1
35-60494A4
18-7852-1
1/4" Aluminum
21
1 - 18-7845 &
Yamaha - MAr-SepAr-AT-or
(Tall Filter)
1 - 18-7853-1
18-7775-1
3/8" Aluminum
21
1 - 18-7845 &
(Tall Filter)
1 - 18-7775
18-7777-1
1/4" Stainless Steel
21
1 - 18-7845 &
Yamaha - ABB-SprTr-HD-SS
(Tall Filter)
1 - 18-7777
18-7776-1
3/8" Stainless Steel
21
1 - 18-7845 &
(Tall Filter)
1 - 18-7776
Includes Bracket, Filter & 2 pipe plugs*
3/8" Pipe Plugs - 18-4264
126
1/4" Pipe Plugs - 18-4256