Large SwampRunner®

View Customer Performance Stastistics

Engines 16 to 40 HP

Whether you're looking for more speed, or just need that extra torque to power heavy loads through the bayou, the LARGE SWAMP RUNNER® kit will get the job done.
Our large kits are designed for HONDA & BRIGGS VANGUARD V-twin engines between 16 & 24HP, KOHLER V-twin engines between 20 & 27HP, and SUBARU V-twin engines between 20.5 & 40HP.

Our large kit will help you gain the advantage, and exclusive access to those remote hunting & fishing spots where other boat motors just cant go.  

This HONDA, BRIGGS & KOHLER kits ship with 9” & 9.5" diameter propellers, generally used with engines between 16 and 27HP.

Kit Weight: 75 lbs.

     $699.00 + shipping

20-27hp KOHLER KIT
     $699.00 + shipping

20.5-40hp SUBARU KIT
     $699.00 + shipping

Purchase Kit (Honda/Briggs)  

Purchase Kit (Kohler V-Twin)

Purchase Kit (Subaru V-Twin)

Exclusive Features

There are two other US based resellers of inferior Thai longtail brands who have made attempts at copying features first introduced by Swamp Runner,  The following is a short list of differences you will NOT get from one, or the other, or both of these other two brands being offered;

♦ LIFETIME WARRANTY on coupler shafts and housings!  That's right.  Swamp Runner offers the best warranty in the industry, and is the FIRST & ONLY mud motor company to offer a lifetime warranty on key drivetrain parts. All Swamp Runner couplers are manufactured from heavy duty steel that will last a lifetime, which is why they come with a LIFETIME WARRANTY.  We DO NOT utilize aluminum couplers, which will corrode from electrolysis and can eventually crack.
♦ SPS couplers and tiller handles are hot-dipped in galvanize, followed by an additional coating of paint.  This double coating offers far superior corrosion resistance and paintability over the chrome offered by others.

♦ The coupler shaft of this kit rides smoothly on a high quality sealed Japanese radial bearing, while economy Thai long tails have no bearing or utilize a cheap unsealed Chinese bearing.
♦ We offer tiller handle mounts for left or right hand steering.  Most other Thai longtails have right handed steering only.
♦ Our transom bracket is far deeper, wider, and heavier built, offering a safe 2" bite on the transom.  Other Thai longtails have only a 3/4" bite, and/or are made from thinner stamped steel.
♦ SPS transom bolts have transom pads, providing a larger surface area to grip the transom firmly without digging into the transom and damaging it.
♦ The winged heads of SPS transom and coupler bolts are constructed of heavy duty steel, while economy Thai longtails use cast aluminum winged bolts that can break.
♦ The diameter of our tiller handles will accept custom throttle levers, while other Thai longtails have a diameter that will not allow it.
♦ Swamp Runner longtails have grease zerk fittings located in numerous locations to make lubrication easy.
♦ The engine base of our Small, Medium, and Large kits can be moved forward and backward for balance adjustment.
♦ The gimble bracket of this Swamp Runner kit pivots smoothly on sealed roller bearings, while the economy Thai longtail brands use dry bushings cut from conduit pipe.
♦ All our kits come with a high quality tethered kill switch.  We don't use the cheap switches that will deform and fail after a little sunlight.
♦ The rails of the engine mounting base and transom gimble brackets on this kit are .48" thick, and constructed of  JIS SS400 grade structural steel (equivalent to AISI-1018 or ASTM-A36. 
♦ SPS utilizes refined manufacturing techniques that are a trade secret, to produce a highly balanced shaft assembly you just can't get anywhere else.

   And there are other differences we don't talk about....

NOTE: All engines with gear reduction box options are not compatible with this kit.


Purchase Kit (Honda/Briggs)  

Purchase Kit (Kohler V-Twin)


"Just thought I'd let you know that we're up & running with the mud motor!  The kit went together very nicely.  The only thing so far that's stopped the boat is dry land.  Neighbours who've seen a boat going where no boat has been lately are impressed!"  - Rod C., Eustis, FL

"Rig was impressive today. 3 men (520 lbs) and fishing gear. Pushed through some shallow stuff."  - Glynn P., Guy, TX

"All of our boats have your mud motor kits and WE LOVE THEM!! Just wanted to drop a line and say thanks for making a quality product we enjoy using!"  -Kenny S., Largo, FL, & Cole J., New Smyrna, FL