Stumpjumper 8 HP Frame Kit

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

Stump Jumper Features

  • Heavy Duty Tubular Frame support Construction ™ 1999 yr
  • Drive shaft housing DOM tubing.
  • Ultra-Reliable Direct Drive ™1999  yr. (the engine takes ZERO thrust unlike competitors)
  • 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. Prevents drive shaft from bending, when takes an impacted from hitting object in the water  ( frame assembly absorbs impact load from propeller) Takes stress away from drive shaft.
  • Propeller 6.75×5   15-5 Stainless Steel. Propeller designed by Bill’s Engineering LLc.
  • Low-Maintenance Sealed Bearing
  • Tiller handle Multi-Position TM Patent Pending
  • Quick-Release Transom Mount ™ ( Stump-Jumper can be removed from your boat in seconds)
  • Twist Grip Throttle standard. Finger throttle lever upon request. Email Bill at ( 
  • Safety Lanyard Marine grade (clip style)
  • 2-Year Warranty on Frame. Haven’t replaced any frame assembly or driveshaft in pasted 15 yrs
  • Frame assembly total weight 28 lbs.
  • Overall length is  inches (tiller handle in transport position or handle removed:  ”)
  • Driveshaft length:  ″

Engines that work with Stump Jumper Frame assembly.

Predator 8 hp
9 hp Carroll Stream 
Any small engine with these specifications








Engine modification are 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.