Kohler CV960

Kohler CV960The Kohler CV960 is a 999 cc, (61.0 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine from the Command PRO series, manufactured by Kohler Co.

The Kohler CV960 engine has an OHV (overhead valve) design, an aluminum block with cast iron cylinder liners, vertical PTO-shaft, pressurized lubrication system. This engine is equipped with a two-barrel, side-draft carburetor with fixed main jets and CDI/MDI or Digital Spark Advance Ignition (DSAI) ignition systems.

Cylinder bore and piston stroke are 90.0 mm (3.54 in) and 78.5 mm (3.09 in), respectively. Compression ratio rating is 8.8:1.

The CV960 engine produces 36.6 PS (26.9 KW; 36.0 HP) at 3,600 rpm of horsepower and 80.2 Nm (8.2 kg·m; 59.2 ft·lb) at 2,600 rpm of torque.

The breakdown of the engine code is as follows:

  • C – Command series
  • V – Vertical PTO shaft
  • 960 – Numerical designation

General information

Engine Specifications
ModelCommand PRO CV960
Type4-stroke, OHV, V-twin
Displacement999 cm 3 (61.0 cu-in)
Max. horsepower36.6 PS (26.9 KW; 36.0 HP) at 3,600 rpm
Max. torque80.2 Nm (8.2 kg·m; 59.2 ft·lb) at 2,600 rpm
Fuel systemTwo-barrel, side-draft carburetor with fixed main jets
Cooling systemForced-air
Ignition systemCDI/MDI or Digital Spark Advance Ignition (DSAI)
Lubricating systemPressurized lubrication
Starting systemElectric starter
Fuel usedUnleaded gasoline (octane number 86 or higher)
Dimensions (L x W X H)640 x 484 x 470 mm (25.2 x 19.1 x 18.5 in)
Dry weight57.0 kg (125.7 lbs)

Cylinder Block and Head

Cylinder block
Compression ratio:8.8:1
Bore x Stroke90.0 mm X 78.5 mm (3.54 x 3.09 in)
Sleeve internal diameter90.000-90.0025 mm (3.5433-3.5434 in)
Number of piston rings (compression / oil):2 / 1
Piston style A
Thrust face outer diameter89.953-89.967 mm (3.5414-3.542 in)
Piston pin outer diameter18.995-19.000 mm (0.7478-0.7480 in)
Ring-to-groove side clearance:Top0.040-0.080 mm (0.0016-0.0031 in)
Second0.040-0.080 mm (0.0016-0.0031 in)
Oil0.030-0.190 mm (0.0012-0.0075 in)
Ring end gap:Top0.300-0.550 mm (0.0118-0.0217 in)
Second0.300-0.550 mm (0.0118-0.0217 in)
Piston style B
Thrust face outer diameter89.972 mm (3.5422 in)
Piston pin outer diameter19.995-20.000 mm (0.7872-0.7874 in)
Ring-to-groove side clearance:Top0.030-0.070 mm (0.001-0.0026 in)
Second0.030-0.070 mm (0.001-0.0026 in)
Oil0.060-0.190 mm (0.0022-0.0073 in)
Ring end gap:Top0.125-0.304 mm (0.0049-0.0120 in)
Second0.900-1.179 mm (0.0345-0.0464 in)
Crankshaft main journal diameter:44.978-45.000 mm (1.7708-1.7717 in)
Crankpin journal diameter:43.982-44.000 mm (1.7316-1.7323 in)
Cylinder Head
Valve Arrangement:OHV, gear drive
Valves:4 (2 per cylinder)
Valve head diameter:INTAKE38.625-38.685 mm (1.5207-1.523 in)
EXHAUST31.625-31.825 mm (1.2451-1.253 in)
Stem outer diameter:INTAKE6.982-7.000 mm (0.2749-0.2756 in)
EXHAUST6.970-6.988 mm (0.2744-0.2751 in)
Camshaft journal diameter:19.962-19.975 mm (0.7859-0.7864 in)

Tightening torque specs

Tightening torque specs
Cylinder head Bolt (torque in 2 increments):
Step 1: 23.7 Nm (2.4 kgf·m; 17.5 lb·ft)
Step 2: 46.9 Nm (4.8 kgf·m; 34.6 lb·ft)
Connecting rod cap11.0 Nm (1.1 kgf·m; 8.1 lb·ft)
Flywheel69.8 Nm (7.1 kgf·m; 51.5 lb·ft)
Spark plug27 Nm (2.75 kg·m; 20.0 ft·lb)

Service Information

Oil system
Oil typeAPI SJ or higher
Recommended oilSAE 10W-30, KOHLER PRO 10W-50
Oil capacity W/o oil filter: 1.9 liters (2.0 US.qts, 1.7 Imp. qts)
With oil filter: 2.6 liters (2.75 US.qts, 2.3 Imp. qts)
Ignition system
Spark plugChampion RC12YC
Spark plug gap0.76 mm (0.030 in)
Ignition module air gap0.280-0.330 mm (0.011-0.013 in)
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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