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9.9-25hp ProKicker™

Quiet Performance. Precise Speeds. Complete Control.

Mercury ProKicker™ outboards enable precision boat control, even in the toughest fishing conditions. Quiet, smooth and efficient, they make long hours of trolling more productive – and more enjoyable.

mercury boat engine

Intuitive, Innovative Features

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Exceptionally Smooth and Quiet
We balanced the powerhead to make it smoother and crafted soft-rubber mounts that isolate vibration and direct it away. Whether you’re fishing in a quiet cove or having a conversation, you’ll enjoy every minute on the water.

mercury boat engine
Easy to Maintain
Spend less time on service and more time on the water with our no-spill oil change system, easy-change gear lube and lifetime maintenance-free valve train.

mercury boat engine
Custom-Matched Prop
Big boats. Rough waters. No problem. A high-thrust four-blade propeller delivers refined trolling speed authority so you can dial in precise presentations every time.

mercury boat engine
Advanced Mercury Tiller
Port side or starboard, you pick the mounting location, and the tiller adapts to you. Its reversible throttle grip can be configured for control with either hand, while lateral adjustments ensure a convenient steering angle.

mercury boat engine
Power Tilt
No need to lean or strain to stow or deploy the engine. Mercury EFI-equipped ProKicker™ outboards come standard with power tilt.

Engine Specifications by Horsepower

Scroll within the table below to view specifications for each engine.

Horsepower 25hp ProKicker 15 EFI ProKicker
Engine type Inline 3 Inline 2
Displacement (CID/CC) 30.5 cu in (500cc) 20.3 / 333
Displacement (L)
Cylinder Configuration
Full throttle RPM 5400-5800 5700-6200
Alternator amp / Watt
Starting Electric Electric
Steering Remote Remote Tiller
Shaft length 20" / 508 mm 25" / 635 mm 20" / 508 mm 25" / 635 mm
Gearcase ratio 2.17:1 2.15:1
Dry weight *Lightest model available 146 lbs / 66.3 kg 122 lbs / 56 kg
Trim system Power trim and tilt Power Tilt
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