Built for one reason, all out speed, power and smooth performance.  This 7 turn - 7 pole motor with internal cooling fan is rated for 10 to 18 cells (12 to 22.5 volts).  Maximum efficiency at 20 amps and 12,000 RPM's at 12 volts.  This motor has 0 (zero) timing so it runs forward and reverse at the same RPM's.

Length:  3-3/8"    Width:  2-1/4"     Height:  2-1/4"
Shaft is 5 mm in dia. x 9/16" long             
Weight:  18 oz. 

This high performance scale model outboard motor has a 550 size water cooled motor and a ball bearing gear drive lower unit.   It comes complete with mounting hardware.  Runs on 6 to 7 cells (7.2 to 8.4 volts).  The motor may be replaced with any 550 size motor.  The motor case design can be changed to look like Mercury, Yamaha or Mariner engines with the change of decals (not included).  This is the perfect motor for models up to 30" in length.

7-1/4" High x 2" Wide x 4" Deep (off transom)     Weight:  17 oz.

This motor is for powering model boats of 30 inches or less.  It's rated at 6-12 volts DC and has a low amp/hr draw (800 milliamps) at maximum efficiency.  The ideal power choice would be lightweight Ni-Cad battery packs or small sealed lead-acid batteries.  Four "AA" penlight batteries will give runs of 20 minutes or more.

 12 VDC         10,850 RPM         0.800 AMP
  7.2 VDC         7,650 RPM         0.700 AMP

The need for powering small speedboats with limited space for batteries has prompted MACK to develop a marine motor with the same approximate power and size as our # 5045 motor, but running at voltages of 6 to 8.4 volts, allowing use of only one battery pack.

6-8.4 VDC                        7.5 AMP. MAX
11,900 RPM  at  7.2 VDC

This motor is 2 to 3 times more powerful than current name brand motors costing over twice the price.  This is a 12-volt motor with low 4.9 amp/hour draw at 11,900 RPM's 

Length:  3-5/16"         Width:  1-1/2"             Height:  1-9/16"         Weight:  7 oz.
Shaft Ht:  7/8"           Shaft Diameter:  1/8"      

Price:  $46.50                                                   

Length:  5-1/2"
Width:   2-3/4"
Height:  2-1/2"
Shaft Ht: 7/8"
Shaft Diameter:  3/16"
Weight:  10 oz.

This unit was built with one purpose in mind: speed and power.  Rated at .40 gas, this unit is ideal for deep "V's", hydros, ski boats and fast cruisers.  The unit uses two of our powerful # 5045 marine motors, geared directly together for perfect motor timing and no idler shaft. It will run from 12 to 16 volts with a current draw of 10 amps.  RPM's at 12 VDC is 12,200+  and at 16 VDC is 16,000+.  Output shaft has a 3/16" diameter.