Stump-Jumper 14hp 420cc Frame Kit


Out of stock


Due to Covid-19, prices of material needed to build our mud motors continue to fluctuate and many of our mud motors and frame kits are being built-to-order.  For accurate pricing and current lead times, please fill out the form found on our Contact Us page and we will get back to you as soon as possible.  Please include as many details as possible of what you are looking for.  Once information is confirmed, a custom quote will be generated for you.  Price ranges are included below for reference but are estimates and may change depending on current material prices.

  • 14hp Complete Mud Motor: $1,750-$1,950
  • 7hp Complete Mud Motor: $1,295-$1,495
  • 14hp Frame Kit: $1,195-$1,395
  • 7hp Frame Kit:  $1,125-$1,325


Stump-Jumper Mud Motor ”Frame Kits” include everything you need except the engine, oil and gas.

This is an economical choice for those who want to use their own engine for shallow water boating.

Shipping included to the lower 48 states! A 5.5% sales tax applies to Wisconsin residents.

Some assembly required.

Our mud motors come with a twist grip throttle by standard.  If you would like a finger lever throttle, attach an “Instruction to merchant” when checking out.

Please Contact us Here for AK, HI, and International orders.

Category: Tags: , , , Product ID: 1286


Stump-Jumper Features

  • Ultra-Reliable Direct Drive ™  (the engine takes ZERO thrust unlike competitors)
  • Drive shaft housing DOM
  • Heavy Duty Tubular Frame support Construction ™ 1999 yr
  • Hollow drive shaft TM 2001 yr., reduces weight by 5 lbs. Stronger then a solid shafts. Hollow driveshafts are used in all rear wheel drive vehicle.
  • Bearing Nut TM. 1999 yr. Part of the lower bearing system.  Does 3 things: 1. Acts as a stop nut for the propeller.    2. Keeps the seals in spec. (propeller are put out of balance when weeds collect on propeller).  3. And prevents driveshaft from bending, when takes an impacted from hitting object in the water  ( frame assembly absorbs impact load from propeller) Takes stress away from driveshaft.
  • Propeller 8×4   15-5 Stainless Steel. Propeller (Hill Marine)
  • Low-Maintenance Sealed Bearing
  • Multi-Position Handle Patent Pending
  • Quick-Release Transom Mount ™ ( Stump-Jumper can be removed from your boat in seconds)
  • Twist Grip Throttle standard. Finger lever throttle available (Instructions to merchant) when checking out.
  • Safety Lanyard Marine grade
  • Overall length is  inches ( tiller handle in transport position or handle removed:  ”)
  • Drive Shaft ″
  • Frame: 28 lbs.
Engines that work with Stump-Jumper Frame assembly:
Predator 13 Hp Electric start with recoil backup Carroll Stream 13 HP Electric Start Any small engine with these specifications
 Bolt pattern for mounting Stump-Jumper frame assembly
Engine modification is required for installing on Stump-Jumper frame assembly:
 Tape marks 2 3/8″ to 2 1/2″ away from frame assembly mounting surface. remove 1″ for crankshafts that are 3.5 inches in length.  Using straight edge (ruler) . Measure from straight edge to 2 3/8″ to 2 1/2″  Resized crankshaft. Use 4″ grinder cut off wheel, saw zail, hack saw.