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MK-4000 Series Gas Gearbox Saws

The MK-4000 heavy-duty Concrete Saw has been engineered for operator convenience, improved accessibility for maintenance and better control during operations. The MK-4000 has been designed for both front and rear pivoting and has easily removable rear and side panels to provide easy accessibility for maintenance. One-year limited warranty.

The 57Hp Kubota WG1605-G-E3 is a 4 cylinder, 1537cc, in-line, gas fueled, naturally aspirated, liquid-cooled engine. It is fuel efficient, altitude compensating, has low emissions and meets EPA and CARB requirements. This engine offers very low vibration and is exceptionally quiet.

The 3-speed blade shaft gearbox allows for multiple blade diameters without belt/pulley changes reducing labor time. Located at the front of the saw for easy access, the gearbox is used to change output speed of the blade shaft. Blade capacity available from 12" to 36". The 3-Speed Series offers the widest range of blade sizes, without pulley changes, of any saw available on the market.

  • Totally enclosed and sealed blade shaft with continuous oil bath lubrication system
  • Control set provides proportional blade raising/lowering and travel speed with one hand operation
  • Bayonet mount blade guard
  • Blade guard uses "ride on the blade" water tubes for superior water delivery and blade cooling
  • Eaton model 7 Hydrostatic transmission coupled to an MK differentiating trans-axle
  • Saw designed for left or right side mounting of blade and blade guard
  • Differential lock (for cutting on slippery surfaces) and free wheel/engage controls (to allow the saw to be pushed manually)
  • Three-position adjustable solid steel handlebars
  • Rigid frame front pointer with high visibility guide wheel for accurate tracking
  • Seven 3VX drive belts from engine to blade shaft
  • Travel Speed: 0-200 FPM Forward, 0-100 FPM Reverse
  • One-year limited warranty
Selected Gear Blade Dia RPM
High 12" - 16" 3,000
Medium 18" - 26" 2,000
Low 30" - 36" 1,300

Gearbox is water-cooled for longevity and extended maintenance intervals.   Gear Shift Gearbox shift lever locks in place

MK-4000 Series - 57 HP Saws
Model Blade Guard Part #
4020KGG 20" 172192-20G
4026KGG 26" 172192-26G
4030KGG 30" 172192-30G
4036KGG 36" 172192-36G
Blade not included with saw.
General Specifications
Engine Kubota WG1605-G-E3
Horse Power 57 hp
Depth of Cut - 20" Blade 7-1/2"
Depth of Cut - 26" Blade 10-1/2"
Depth of Cut - 30" Blade 12-1/2"
Depth of Cut - 36" Blade 15"
Blade Shaft RPM 1300/2000/3000
Arbor 1" with 3/8" Drive Pin
Fuel Capacity 6 Gallons
Travel Speed 0-200 FPM Forward, 0-100 FPM Reverse
L x W x H 64" x 35" x 47"
Weight 1,080 lbs.
14" blade guard model available on request.

* Engine power ratings are calculated by the individual engine manufacturer and the rating method may vary among engine manufacturers. MK Diamond Products makes no claim, representation or warranty as to the power rating of the engine on this equipment and disclaims any responsibility or liability of any kind whatsoever with respect to the accuracy or the engine power rating. Users are advised to consult the engine manufacturer’s owners manual and website for specific information regarding the engine power rating.

Warning: This equipment contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. These chemicals are contained in various components. fluids and paint including but not limited to fuel, oil, electric motors and batteries. In addition, gasoline/diesel powered equipment emits engine exhaust and fumes, and when serviced, cleaned or maintained generate used oil, waste fluids, fumes, grease, grime and particulates from the component wear and silica dust which contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
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