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Mercury
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Mercury Marine [Updated: Apr. 10, 2026]
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Trolling Motor
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MotorGuide Digital Steering Series
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[9B189787 & Up] - Cat.# 90-891887
[9B189787 & Up] - Cat.# 90-891887
Name
Type
16 Bow (Black) (MST91642A)
Schematic
20.5 Bow (Black) (MST9205BF)
Schematic
21 Bow - Gator (Black) (MST921BF)
Schematic
23.5 Bow (Black) (MST9235BF)
Schematic
24 Big Water - Gator (Black) (MST924BF) (MST924BFW)
Schematic
Complete Trolling Motor (Model DS109FB) (36 Volt)
Schematic
Complete Trolling Motor (Model DS54FB) (12 Volt)
Schematic
Complete Trolling Motor (Model DS82FB) (24 Volt)
Schematic
Electrical Connectors And Terminals
Schematic
Foot Pedal Assembly (M0099101)
Schematic
Gator 360 Flex II Mount (Black) (8M4000308)
Schematic
Gator 360 Flex II Mount (Black) (DESIGN II) (8M4501607)
Schematic
Gator 360 Flex Mount (Black) (MST9360FW)
Schematic
Lower Unit Assembly (109# - Variable) (MXC397022)
Schematic
Lower Unit Assembly (109# - Variable) (MXC397052)
Schematic
Lower Unit Assembly (54# - Variable) (MCC397022)
Schematic
Lower Unit Assembly (82# - Variable) (MTC397022)
Schematic
Lower Unit Assembly (82# - Variable) (MTC397052)
Schematic
Repair Kit - Lower Unit Assembly (MXC6021)
Schematic
Service Support Material
Schematic
Tool List (Special)
Schematic
Wire Diagram (Model DS109FB) (36 Volt)
Schematic
Wire Diagram (Model DS54FB) (12 Volt)
Schematic
Wire Diagram (Model DS82FB) (24 Volt)
Schematic