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MERCURY MARINE4hp & 6hp 4-Stroke Outboards

MERCURY MARINE

4hp & 6hp 4-Stroke Outboards

Mercury Marine’s 4-stroke technology consumes 40% less fuel than 2-stroke models for extraordinary value and savings

Engines surpass California Air Resources Board (CARB) 3-Star Rating, making them some of the cleanest running on the market-with 91% less emissions than traditional 2-stroke outboards!

The inherent 4-stroke characteristics of ultra-quiet, smoke-free operation, plus smooth idling and running make these engines a natural choice whether you’re trolling for fish or out just for fun. Clean running 4-stroke engines from 2.5 to 20hp have a CARB three-star, ultra-low emissions rating. The decompression system and electronic CD ignition design ensure an easy, reliable start. One-stage over-rev protection and low oil pressure warning system provide extra peace of mind. Exclusive multifunction tiller handle on the 8hp and 9.9hp models features shift, steering, throttle, throttle friction, and stop controls for convenient one-hand operation. Available in manual-tilt, gas-assist and power-trim. All models are sold with a propeller.

  • Engine Type: 4-stroke
  • Features: 4-stroke technology-quiet, environmentally friendly, 40% more fuel efficient than comparable 2-stroke engines, smooth running/exceptional idling
  • Exhaust: Though prop
  • Start: Manual, with decompression system
  • Steering Type: Tiller
  • Warranty: Five years
  • For U.S. shipment ONLY

4hp & 6hp 4-Stroke Outboards

  • A standard automatic cylinder decompression system greatly reduces starting pull force for effortless starting
  • The 4 hp model delivers ultimate portability with its integrated fuel tank and shut-off valve to prevent fuel spillage
  • A full forward-neutral-reverse side shift is standard
  • Gearing: F-N-R, 2.15:1
  • Trim Positions: 6, plus shallow-water drive
  • Tank Type: Integral fuel tank (gal / L)

Note: These Mercury outboards have 4-stroke engines and, like virtually all 4-stroke engines, depend on oil in their crankcases for lubrication. To prevent the oil from leaking during transport, the engines are not shipped with oil in their crankcases. You must put the correct amount and grade of oil in the crankcase prior to the first use or you will cause extensive damage to your engine, which is not covered by your engine’s warranty. Please read the owner’s manual for more information.

For U.S. shipment ONLY.

Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
4hp 4-Stroke Outboard, 55lb., 15" Shaft Length, F-N-R Gearing, Integral Tank, 0.3 Gallon Tank 1182237 1F04201FK
In stock online.

$1,359.00

4hp 4-Stroke Outboard, 57lb., 20" Shaft Length, F-N-R Gearing, Integral Tank, 0.39 Gallon Tank 1240753 1F04211FK
In stock online.

$1,379.00

6hp 4-Stroke Outboard, 55lb., 15" Shaft Length, F-N-R Gearing, Integral Tank, 0.3 Gallon Tank 1182278 1F06201FK
In stock online.

$1,759.00

6hp 4-Stroke Outboard, 57lb., 20" Shaft Length, F-N-R Gearing, Integral Tank, 0.3 Gallon Tank 1182310 1F06211FK
In stock online.

$1,769.00

Product Description

Mercury Marine’s 4-stroke technology consumes 40% less fuel than 2-stroke models for extraordinary value and savings

Engines surpass California Air Resources Board (CARB) 3-Star Rating, making them some of the cleanest running on the market-with 91% less emissions than traditional 2-stroke outboards!

The inherent 4-stroke characteristics of ultra-quiet, smoke-free operation, plus smooth idling and running make these engines a natural choice whether you’re trolling for fish or out just for fun. Clean running 4-stroke engines from 2.5 to 20hp have a CARB three-star, ultra-low emissions rating. The decompression system and electronic CD ignition design ensure an easy, reliable start. One-stage over-rev protection and low oil pressure warning system provide extra peace of mind. Exclusive multifunction tiller handle on the 8hp and 9.9hp models features shift, steering, throttle, throttle friction, and stop controls for convenient one-hand operation. Available in manual-tilt, gas-assist and power-trim. All models are sold with a propeller.

  • Engine Type: 4-stroke
  • Features: 4-stroke technology-quiet, environmentally friendly, 40% more fuel efficient than comparable 2-stroke engines, smooth running/exceptional idling
  • Exhaust: Though prop
  • Start: Manual, with decompression system
  • Steering Type: Tiller
  • Warranty: Five years
  • For U.S. shipment ONLY

4hp & 6hp 4-Stroke Outboards

  • A standard automatic cylinder decompression system greatly reduces starting pull force for effortless starting
  • The 4 hp model delivers ultimate portability with its integrated fuel tank and shut-off valve to prevent fuel spillage
  • A full forward-neutral-reverse side shift is standard
  • Gearing: F-N-R, 2.15:1
  • Trim Positions: 6, plus shallow-water drive
  • Tank Type: Integral fuel tank (gal / L)

Note: These Mercury outboards have 4-stroke engines and, like virtually all 4-stroke engines, depend on oil in their crankcases for lubrication. To prevent the oil from leaking during transport, the engines are not shipped with oil in their crankcases. You must put the correct amount and grade of oil in the crankcase prior to the first use or you will cause extensive damage to your engine, which is not covered by your engine’s warranty. Please read the owner’s manual for more information.

For U.S. shipment ONLY.

Specs

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REVIEW SNAPSHOT®

by PowerReviews
Mercury Marine4hp & 6hp 4 Stroke Outboards
 
3.4

(based on 11 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

70%

of respondents would recommend this to a friend.

Pros

  • Easy to use (4)

Cons

    Best Uses

    • Boating / sailing (4)
      • Reviewer Profile:
      • Casual/ recreational (6), Advanced (3)

    Reviewed by 11 customers

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    Displaying reviews 1-10

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    (8 of 8 customers found this review helpful)

     
    4.0

    Solid Motor

    By Steve

    from Rochester NY

    About Me Advanced

    Verified Reviewer

    Pros

    • Easy To Use
    • Nice Features
    • Reliable
    • Safe

    Cons

    • Heavy

    Best Uses

    • Boating

    Comments about 4hp & 6hp 4 Stroke Outboards:

    I bought this motor after returning a totally unreliable, but compact and light 3.5hp Mercury that would regularly quit and not restart. This 6hp Mercury is heavier than I wanted (20 lbs more than the smaller motor) but starts easily and runs reliably. It has additional nice features such as both internal and (extra cost) external tanks and reverse shift. I strongly suggest you seek out non ethanol fuel for any small outboard. They are approved for ethanol but that's not ideal. With the external tank it's easy enough to locate a gas station that has the good stuff.

    My comments about the motor weight (57 lbs) has to do with its use on our RIB tender for our trawler and the need to hoist the tender and motor on davits. Also, I'm 75 and that's starting to show. The weight is probably not a factor for a lot of other users.

    (4 of 4 customers found this review helpful)

     
    1.0

    HUGE PROBLEMS WITH THIS MOTOR IN REVERSE

    By MERCURY SINKING

    from JACKSONVILLE, FL

    About Me Casual/ Recreational

    Pros

      Cons

      • Jumps Into Boat In Revers

      Best Uses

        Comments about 4hp & 6hp 4 Stroke Outboards:

        HUGE PROBLEMS WHEN PLACED IN REVERSE. ADJUSTING TILT PIN HAS NO EFFECT. MOTOR BUCKS AND ALMOST JUMPS INTO THE BOAT WHEN PLACED IN REVERSE.

        (7 of 7 customers found this review helpful)

         
        5.0

        Great Little Engine

        By Sunfish B

        from Jersey Shore, NJ

        About Me Advanced

        Verified Reviewer

        Pros

        • Compact Design
        • Easy Storage
        • Easy To Use

        Cons

          Best Uses

          • Inflatable

          Comments about 4hp & 6hp 4 Stroke Outboards:

          Bought the 6hp short shaft four years ago for my 20 foot Coastal Rec Ensenada. Used it for a year with no problems. Sold the motor with the boat. Just bought it back. The person I sold it to put zero time on it. New plug and new gas and it started right up after two years

          (5 of 5 customers found this review helpful)

           
          5.0

          Great Engines

          By Old fisherman

          from Centralia Wa

          About Me Advanced

          Pros

          • Reliable

          Cons

            Best Uses

            • Boating

            Comments about 4hp & 6hp 4 Stroke Outboards:

            I have used a 5 hp Mercury 4 stroke on my boat for a trolling motor for 11 years.Still runs great with between 500-600 hours on it.I would buy another one in a minute.

            (5 of 15 customers found this review helpful)

             
            1.0

            Worst

            By Yamaha lover

            from Bristol ri

            About Me Casual/ Recreational

            Pros

            • Good looking

            Cons

            • Breaks down every year
            • Flimsy
            • Heavy
            • Hot
            • Unreliable

            Best Uses

            • Spare parts

            Comments about 4hp & 6hp 4 Stroke Outboards:

            I used this on my yacht and around rivers it's breaks every single year people told me there were problems with mercurys and I just wouldn't believe them

            Boo mercury
            Go Yamaha

            (8 of 8 customers found this review helpful)

             
            4.0

            A Great Investment

            By Aquaholic

            from Fort Gaines, Georgia

            About Me Casual/ Recreational

            Pros

            • Compact Design
            • Easy To Use
            • Good efficiency

            Cons

            • Cuts off while idling

            Best Uses

            • Boating
            • Fishing
            • Riding

            Comments about 4hp & 6hp 4 Stroke Outboards:

            I received a 12 foot Lowe Jon boat for Christmas with a small trolling motor. We decided to get a a 6 HP engine. We ended up buying it, and I am very satisfied with the purchase. It moves along quite well with 400 pounds of people and gear inside the boat at around 10 MPH. We have run it for a whole day and only used half a tank of gas.(3.2 gal tank) The only problem I have with it is that when idling, it will sometimes sputter and cut off. I now use just a slight bit over idle speed for going under bridges, etc. Overall, a great buy and I am very happy with this product.

            (11 of 12 customers found this review helpful)

             
            4.0

            4HP c/w Intregral Tank

            By Newbie

            from Ontario, Canada

            About Me Casual/ Recreational

            Pros

              Cons

                Best Uses

                  Comments about 4hp & 6hp 4 Stroke Outboards:

                  I have a 4HP with integral tank that is great for getting my sailboat in/out of port. You can also run it with an external tank, which I do for longer runs (if there is no wind!!). I found it difficult to start when running with the intergral tank until I learned a little trick - keep the vent shut - this seems to help pressurize the fuel system, as you would with the bulb on an external tank. Apart from that the motor runs great! For all I know this may be in the Owners Manual, but who looks at those? ;)

                  (7 of 9 customers found this review helpful)

                   
                  1.0

                  WM sold engine mfg Nov 08 as new 4/11

                  By John

                  from Kingwood Texas

                  About Me Casual/ Recreational

                  Verified Reviewer

                  Pros

                    Cons

                    • Hard to start out of box
                    • Mercury Tech Rep no help
                    • Needs repair on 1st day
                    • Once started leaked gas

                    Best Uses

                      Comments about 4hp & 6hp 4 Stroke Outboards:

                      I wanted to use the 6 hp on my sailboat but right out of the box, in a whole day of trying and a lot of phone calls,and with fresh gas, only got it to run three times. First 2 times only ran 30 seconds and the last time ran continously but developed a bad gas leak from carburetor. Taking for service - will test warranty. [...] nor Mercury Tech rep were any help!

                      (6 of 7 customers found this review helpful)

                       
                      4.0

                      Dependable for sure

                      By lorendad

                      from New Port Richey, Florida

                      About Me Casual/ Recreational

                      Pros

                      • Easy Storage

                      Cons

                        Best Uses

                        • Canoeing

                        Comments about 4hp & 6hp 4 Stroke Outboards:

                        I grew up in a marina in the 50-60's. This motor is so easy to work on. I let it sit for too long and gas went bad. Drain plug on carb bottom easy to get at. Fresh fuel and two pulls, it's running! Idles just fine for pushing our canoe upriver at a snails pace. Very quiet for wildlife watching.

                        (7 of 9 customers found this review helpful)

                         
                        5.0

                        good tender motor

                        By Capt Chuck

                        from Mobile bay, AL.

                        About Me Professional

                        Pros

                        • Easy To Use

                        Cons

                        • None

                        Best Uses

                        • Boating
                        • Inflatable tender

                        Comments about 4hp & 6hp 4 Stroke Outboards:

                        use this motor on the SB-275 inflatable.
                        Runs plenty fast enough for me.
                        This motor is the exact same as the 6 hp except for the RPM and internal fuel tank.

                        Campared side by side at the mercury marine website but opted for the convenince of internal tank for puttering around marina / anchorage.

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