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Scag Turf Tiger - KOHLER® Aegis® 31hp EFI Engine....Works hard, Stays Cool!

Kohler Electronic Fuel Injected EFI enginesThe Scag Turf Tiger is more powerful and efficient than ever before with the KOHLER® Aegis® 31hp EFI (Electronic Fuel Injection) engine. Experience tremendous power, productivity, and fuel savings with this winning combination of engine and machine. With its automotive-style radiator, closed-loop injection system, and heavy-duty air filtration system, the Aegis delivers superior performance, custom made for the most demanding conditions.

The Kohler Aegis engine features a liquid-cooling system that ensures consistent flow and superior cooling to each cylinder. The results are less cold-start friction, faster warm-up time, lower oil temperatures, reduced engine wear, more power, and longer engine life. By integrating the overhead valve design of other successful Kohler engines, this engine offers optimal fuel efficiency, consistent running temperatures, and quiet operation. Easy-to-access service points, a solenoid shift starter, and a 3-year limited warranty* put the finishing touches on this impressive package.

Kohler EFI Electronic Fuel Injection - How It Works

Visit the Kohler Engine web site to see
"How Electronic Fuel Injection (EFI) Works".

  • Closed-loop Electronic fuel injection for maximum fuel efficiency
  • Aluminum block with cast-iron cylinder liners
  • Automotive-style radiator increases overall engine life and reliability
  • Industrial grade air filtration system ensures maximum protection of interior engine components
  • Dual air filters deliver maximum performance. The main filter traps dirt and debris while the inner filter prevents carburetor contamination during main filter servicing.
  • Overhead valve design produces more power, improves fuel economy and cooling, and reduces oil consumption.
  • Full pressure oil lubrication system with spin-on oil filter.
  • Oil-pressurized valve lifters ensure that push rods remain in constant contact with rocker arms, eliminating valve adjustment; keeps valve train nearly maintenance free.
  • Various user-friendly features: dual oil drains, easy-access oil fill, low-oil protection, in-line fuel filter
  • Commercial grade solenoid shift starter means quick, reliable starts.
  • Three-year limited engine warranty*
- Torque
Engine Specifications Kohler Aegis 31hp EFI
(Model LH775)
Kohler Aegis 31hp EFI - Horsepower
Kohler Aegis 31hp EFI - Torque
Number of cylinders: 2 (V-Twin) Kohler 31EFI power curve Kohler EFI torque curve
Bore x stroke [mm (in)]: 83 x 69 (3.3 x 2.7)
Displacement [cc (cu in)]: 748 (45.6)
Horsepower: 31
Torque Ft/lbs: 47.7
Lubricating system: Pressure feed with spin-on oil filter
Engine oil capacity [Ltr (qt)]: 1.9 (2.0)
Cooling system: Liquid cooled water pump, radiator & fan
Alternator: 12 Volt, 20 Amp
Starter: 12 Volt, 1.0kw



Heavy-duty air cleaner with rain cap

Mechanical fuel pump

Overhead valve, V-Twin design; Hydraulic valve lifters

Automotive-style liquid cooling; Coolant thermostat; High-flow cooling fan

Full-pressure lubrication with spin-on filter; Gerotor™ oil pump

High-inertia flywheel



*See Kohler engine warranty statement for details.

Engine specifications based upon manufacturer supplied information. All specifications subject to change at anytime without notice or obligation.