Kohler Command Pro CV oil and extended-service conditions
The cited Command Pro CV service manual gives a 1.6–1.8 L oil refill range and an ordinary 100-hour/annual oil interval. Its300-hour option requires both KOHLER PRO10 W-50 oil and the specified PRO extended-life filter. A generic synthetic oil or a standard filter alone does not establish eligibility for that longer interval.
Verify both parts of the 300-hour option
Service manual24 69007RevL pairs the approved oil and filter in the extended schedule. Without that combination, follow the ordinary oil and filter rows. Severe, dusty and dirty operation has separate frequency notes; a longer advertised interval does not cancel those instructions.
For a hypothetical engine now at 240 hours, last serviced at 200, an ordinary 100-hour interval reaches 300 hours. A documented eligible300-hour service from 200would reach500 hours, subject to its other time/use conditions. The same current meter reading therefore cannot identify the due date without the earlier service details.
The refill range still ends at the dipstick
The manual’s 1.6–1.8 L range is not permission to add1.8Lto every partly drained CV. Check on level ground using the actual engine’s dipstick procedure. Oil above the operating range is a fault condition as well as oil below it.
The cited CV engines use a 0.030-inch plug gap. Access, plug fit and other replacement parts depend on the engine’s specification number. Bring that number to the supplier rather than buying a V-twin kit solely by horsepower.
Air cleaner and cooling service are separate
This manual distinguishes low-profile and heavy-duty air cleaners. It calls for a weekly heavy-duty element check, with different replacement rows for the outer and inner elements. Identify the fitted housing before ordering either component.
Keep cooling-screen, shroud and oil-cooler cleaning where applicable in the log with oil work. Packed clippings can restrict cooling, but overheating can have other causes too. Stop and diagnose abnormal heat rather than assuming a new oil filter cures it.
Kohler Command Pro CV V-twin: oil capacity, filters, spark plug and schedule
The Kohler Command Pro CV V-twin takes 1.7 to 1.9 US quarts (1.6 to 1.8 liters) of oil, API SJ or higher, with the spark plug gapped 0.030 inch. Kohler changes the oil every 100 hours, or every 300 with KOHLER PRO 10W-50 and the PRO filter, the oil filter and fuel filter every 200 hours, the heavy-duty air element every 250 and the plugs every 500. The maintenance kits are 24 789 01-S, 24 789 02-S and 24 789 03-S, with oil filters 12 050 01-S and 52 050 02-S and plug 25 132 23.
Stop the engine, let it cool, and disconnect and ground both spark plug leads before any service. Hot oil and a hot muffler cause burns, and a V-twin can turn over from a single flywheel rotation.
The Command Pro V-twin on riding mowers and zero-turns
The Kohler Command Pro CV series is the V-twin found on many riding mowers, zero-turns and commercial machines: the CV17 to CV25 and the CV620 to CV750 in Kohler’s numbering. The displacement runs from 561 cc on the CV17 to 725 cc on the CV730 and CV740 and 747 cc on the CV750. All of them share one oil capacity and one service routine, which is why one page covers the family and the kit specification comparison separates the few numbers that change by model.
1.7 to 1.9 qt
Oil, with the filter
Kohler lists 1.6 to 1.8 liters for a refill.
0.030 in
Spark plug gap
0.76 mm on every CV in this range.
100 h
Oil change
300 h only with KOHLER PRO 10W-50 and the PRO filter.
Which oil, and how much
Kohler’s service manual gives the refill capacity as 1.6 to 1.8 liters (1.7 to 1.9 US quarts) for the CV17, CV18 to CV25, CV620 to CV730, CV740 and CV750. Fill to the top of the dipstick range and stop: an overfilled crankcase is one of the causes Kohler lists for smoke and oil consumption. The oil must be API service class SJ or higher, and the viscosity is chosen from the air temperature: 5W-30 in the cold, 10W-30 through the middle of the range, SAE 30 in heat, and KOHLER PRO 10W-50 synthetic at any temperature.
The PRO oil is also the only oil that qualifies for the extended change interval.
| Item | Specification |
|---|---|
| Displacement | CV17 561 cc; CV18 to CV22 624 cc; CV23 to CV680 674 cc; CV730 and CV740 725 cc; CV750 747 cc |
| Oil capacity (refill) | 1.6 to 1.8 L (1.7 to 1.9 US qt) |
| Oil grade | API SJ or higher; 5W-30, 10W-30, SAE 30 by temperature, or KOHLER PRO 10W-50 |
| Spark plug gap | 0.76 mm (0.030 in) |
| Spark plug tightening torque | 27 N·m (20 ft. lb.) |
| Ignition module air gap | 0.28 to 0.33 mm (0.011 to 0.013 in) |
| Maximum operating angle at full oil | 25 degrees |
The Kohler Command Pro CV V-twin schedule
Kohler’s schedule is in hours or annually, and it says to shorten every interval in severe, dusty conditions, which describes most mowing. The heavy-duty air cleaner is a weekly check: the element is the difference between an engine that runs a thousand hours and one that scores its cylinders in a season.
| When | What |
|---|---|
| Weekly | Check the heavy-duty air cleaner element. |
| Every 25 hours or annually | Service or replace the low-profile pre-cleaner. |
| Every 100 hours or annually | Change the oil; replace the low-profile air cleaner element; clean the cooling shrouds and areas; check and clean the oil cooler fins if fitted. |
| Every 200 hours | Change the oil filter and replace the fuel filter. |
| Every 250 hours | Replace the heavy-duty air cleaner element and check the inner element. |
| Every 300 hours | Change the oil and filter, but only with KOHLER PRO 10W-50 and the PRO extended-life filter. |
| Every 500 hours | Replace the heavy-duty inner element and the spark plugs and set the gap; have a dealer lubricate the crankshaft spline. |
The 300 hour oil interval is an option, not a default. Kohler authorizes it only when the engine has both the PRO synthetic and the PRO filter; any other oil or filter goes back to a 100 hour oil change and a 200 hour filter change. For storage beyond two months, add fuel treatment and run the engine for two or three minutes, pour about an ounce of oil into each cylinder through the plug hole, turn the engine over slowly and disconnect the battery.
Parts to buy for the Kohler Command Pro CV V-twin
Kohler sells these engines with a maintenance kit for each variant, and the kit contents are the part numbers you need. Match the kit to your engine’s model and specification number, which is on the engine’s blower housing.
| Kit | Fits | Air filter | Oil filter | Pre-cleaner | Fuel filter |
|---|---|---|---|---|---|
| 24 789 01-S | CV17 to CV23, CV24 to CV740, CH18 to CH25 | 47 083 03 | 12 050 01 | 24 083 02 | 25 050 22 |
| 24 789 02-S | CV18 to CV25, CV675 to CV740, CH18 to CH25 | 24 083 03 | 52 050 02 | 24 083 05 | 24 050 13 |
| 24 789 03-S | CV17 to CV25, CV675 to CV740 | 45 083 02 | 52 050 02 | 45 083 01 | 24 050 13 |
Every one of those kits also holds two quarts of oil, part 25 357 06, and two spark plugs, part 25 132 23. Separately, the Command Pro air filter 24 083 03-S measures 7 inches across and 2.9 inches high, and the two oil filters are the standard 12 050 01-S and the premium 52 050 02-S. Kohler says the premium filter fits most models and the standard one fits all of them.
Two habits keep these engines alive. Check the oil every time you fill the tank, because a V-twin that runs low on oil under a mowing load does not give a second chance.
And clean the cooling fins and shrouds at every oil change: grass packed in front of the flywheel screen is the usual reason an otherwise healthy engine overheats and loses power. See the Kohler filter and plug part numbers for the smaller CH and SH engines.
Kohler Command Pro CV V-twin: questions
How much oil does a Kohler Command Pro CV740 take?
1.6 to 1.8 liters (1.7 to 1.9 US quarts) for a refill, the same figure Kohler gives for the whole CV17 to CV750 range. Fill to the top of the dipstick range and stop, since an overfilled crankcase causes smoke and oil consumption.
What oil does a Kohler Command Pro CV V-twin use?
Any oil of API service class SJ or higher, with the viscosity picked from the air temperature: 5W-30 in cold weather, 10W-30 in the middle of the range and SAE 30 in heat. KOHLER PRO 10W-50 synthetic is the all-season option and the only one that qualifies for the 300 hour interval.
How often should I change the oil on a Kohler CV V-twin?
Every 100 hours or annually with ordinary oil, and every 300 hours only when the engine runs KOHLER PRO 10W-50 with the PRO extended-life oil filter. Shorten every interval in dusty or dirty conditions, which covers most mowing.
What is the spark plug gap on a Kohler CV740?
0.030 inch (0.76 mm). Kohler tightens the plug to 27 N·m (20 foot-pounds) and schedules replacement every 500 hours, with the gap set on the new plug.
What spark plug does a Kohler Command Pro CV use?
Kohler’s maintenance kits carry two plugs of part 25 132 23, and its parts guide also lists 12 132 02-S for the Command series. Match it to your engine’s model and specification number before you buy.
What oil filter fits a Kohler CV730 or CV740?
Kohler’s standard filter is 12 050 01-S, which it says fits all models, and its premium filter is 52 050 02-S, which fits most. The PRO extended-life filter is required for the 300 hour oil interval.
What is the Kohler CV740 air filter part number?
It depends on the air cleaner fitted. Kohler’s kits use 47 083 03, 24 083 03 or 45 083 02, and the Command Pro filter 24 083 03-S is a 7 inch by 2.9 inch element. Check the kit that matches your model and specification number.
What is in the Kohler 24 789 02-S maintenance kit?
An air filter 24 083 03, an oil filter 52 050 02, a pre-cleaner 24 083 05, a fuel filter 24 050 13, two quarts of oil 25 357 06 and two spark plugs 25 132 23. It fits the CV18 to CV25 and CV675 to CV740.
How often does a Kohler CV fuel filter need replacing?
Every 200 hours, at the same visit as the oil filter. Kohler’s kits use 25 050 22 on some variants and 24 050 13 on others, so read the kit contents for your engine.
When do I replace the air cleaner on a Kohler Command Pro?
Check the heavy-duty element weekly and replace it every 250 hours, with the inner element at 500 hours. The low-profile version is replaced every 100 hours, with its pre-cleaner serviced every 25, and all of it more often in dust.
Can I run KOHLER PRO 10W-50 in any Command Pro CV?
Yes, Kohler calls it the ideal oil for its engines and rates it for all seasons. Only the combination of that oil and the PRO extended-life filter earns the 300 hour change interval; with other oil or filters you stay at 100 and 200 hours.
How do I store a Kohler CV V-twin for winter?
For a layup of two months or more, add fuel treatment and run the engine two or three minutes to circulate it, change the oil while warm, pour about an ounce of oil into each cylinder through the plug hole, turn it over slowly and disconnect the battery. Store it clean and dry.
Why does my Kohler CV overheat and lose power?
The usual cause is packed grass and debris on the flywheel screen, shrouds and cylinder fins, or a clogged air cleaner. Kohler puts cleaning the cooling areas in the 100 hour service, and dusty conditions call for it far more often.