Mini Swamp Runner Kit (2.5-3hp)

From: $399.00

We recommend our Mini Swamp Runner Kit for layout boats, canoes, sneak boxes, and other small displacement hulls. Recommended transom height 12″ or less for optimum shaft angle, and is normally paired with the 3hp Predator Engine.

Kit Weight: 30 lbs.

Ships UPS or FedEx Ground in Two Parcels

SKU: 10kt00x Category: Tag:

Our Mini Swamp Runner Kit includes every part needed to build a longtail motor except for the engine.

Each kit includes:
  • Coupler Assembly with Gimble Pivot (zinc plated, followed by a powder coating for superior corrosion resistance)
  • Transom Bracket (zinc plated followed by powder coating)
  • Tiller Handle (zinc plated followed by powder coating)
  • Tiller Handle Mounting Bracket (zinc plated followed by powder coating)
  • Throttle Lever
  • Stainless Steel Throttle Cable
  • 75" Shaft Assembly (shaft housing hot dipped in galvanize for excellent corrosion resistance)
  • Tethered Kill Switch Assembly & Mounting Bracket
  • Other hardware required for assembly
  • Comes standard with (2) Aluminum Propellers, 5" & 5.5"
  • Owner's Manual for assembly instructions and other information
Additional Info

You can view performance stats submitted by verified Mini Swamp Runner Kit owners on this page here - Customer Performance Stats -
This will show the engine the mini kit was installed on, the kind of boat the mud motor was put on, along with the weight, speed, and RPM's.

Most people put the SPS Swamp Runner Mini Kit (30lbs) with the 3hp Predator Engine (22lbs) - This set up will total just under 55lbs and will be the lightest mud motor available.

Layout boats and small flat bottom jon boats seem to be the popular go to for the kit. User: jicard reached 11-mph in an 8' wooden layout boat with a stock 3hp predator engine and the 5.5" stock prop that came with his kit.

If you want a little more power, take a look at our SPS Small Swamp Runner Kit (46lbs) which is normally paired with a 6.5hp Predator engine (37.5lbs) totaling just under 85-lbs.

Honda3hp (98cc)GX100QA2
Carroll Stream - Engine2.5hp (79cc)CS152
Harbor Freight - Predator Engine3hp (79cc & 99cc)
69733 & 68124
Home Depot - Lifan Engine3hp (97cc)LF152F-3Q
LCT3hp (79cc & 98cc)CMXX 79cc & CMXX 98cc
Surplus Center - Powerpro Engine2.5hp (79cc)2549-0042

*The information in this table is provided by as a courtesy service to our customers, and should only be used as a guide to help you choose a kit and match your engine with it. We could not possibly list information that would apply to all engines that are available and will fit our kits.  While every effort has been made to provide useful information, the information may change.  So, it is your responsibility to verify engine specs with the manufacturer of your engine prior to ordering.

Engine requirements

Without physically seeing and measuring your engine, we cannot guarantee this kit will fit other engines not listed above.  If your engine is not listed above, you will need to consult the engine manufacturer, or take some measurements of your engine to ensure it meets the following requirements;

  • The engine must have a horizontal output shaft.
  • The output shaft must be 5/8 inch (15.875mm) diameter (non-tapered) with keyway.
  • The engine side cover bolt circle diameter must be: 3 5/8 inches (92.08mm)
  • Tiller Bracket mounting bolt pattern must be: 3 1/8″ (80.5mm) or 2.4″ (61.5mm)
  • Most of these engines listed above do not come with a remote throttle hookup. Remote throttle kits are available from Affordable Go-Karts.

NOTE: This kit is NOT compatible with the Honda GXH50, GX120, GX200, Predator 212, or engines equipped with gear reduction.


Swamp Runner®
by SPS
Beaver Dam
Offers a Mini Kit that weighs under under 30 lbs, for a complete mud motor weight of less than 50 lbs.yesnono
Heavy-duty steel Coupler Housing
is coated with zinc & then powder coated for superior corrosion protection
Cast Aluminum
Coupler Housings, Coupler Shafts, and Coupler Sleeve Joints so tough they come with a LIFETIME WARRANTY to the original owner against cracking or breakingyesnono
Squeeze type throttle lever that has the full throttle travel of your engine.yesnono
Stainless steel throttle cableyesnono
More than 50 different props available including standard props, weedless props, performance props, stainless props, racing props, and even props that come with a .25" bore so you can tap it yourself!yesnono
Offers a weed cutter that can be mounted on the skeg.yesnono

Additional Information

Weight 15.5 lbs
Dimensions 14.5 × 8.25 × 8.25 in


6 reviews for Mini Swamp Runner Kit (2.5-3hp)

  1. Max F (verified owner)

    Finally, I can afford to go boating again. Laissez le bon temp rouler!

  2. Colby M (verified owner)

    I would like to start by saying the mini Swamp Runner kit has been great. I don’t care what any “expert” says. My use would slaughter even the strongest outboard style mud motor and leave the American longtails impractically heavy. Many thanks

  3. Matthew K (verified owner)

    I just wanted to say thank you again. My mini kit has preformed flawlessly time and time again. Still using it in the Virginia creeks to get into the real skinny water. I keep it greased up and keep spare props ( haven’t had to replace one yet ) aaaaand it just keeps pushing. I’ll be a customer for as long as you guys are around.

  4. Cameron C (verified owner)

    Best kit for the money out there. Probably the best kit out there period. I’m very happy with it. The quality is great and it’ll get you where you want to go. They definitely have my business for all future long tail orders.

  5. bowhunter9219 (verified owner)

    This kit is amazing ordered it for a 10ft. John boat and it goes through the thickest weed choked areas. Will be ordering a bigger kit for my bigger boats.

  6. Richard Anderson (verified owner)

    Purchased the Mini Swamp Runner Kit and a hard to find genuine Honda for my Kara Hummer lay-out/sneakboat. I could not be happier with the light weight design and performance at such an affordable price. At idle the speed is sufficiently fast and full throttle is almost scary. Idle is accomplished with a bungee cord to keep the prop out of the water. The best feature however is the optional mount that allows the Kara Hummer to retain its double ended design instead of mounted on a transom, thus keeping the boat level.

Only logged in customers who have purchased this product may leave a review.