Genuine Kohler & Rehlko · Engines and service parts

Kohler Engines & Parts

Complete Kohler engines by spec number and the genuine parts to keep them running: Command PRO, Command PRO EFI, 7000 Series, Confidant, Courage and KDI/KDW diesel. Kohler's engine business is now called Rehlko. Same engines, same part numbers.

Try CV742-3051, 24 789 10-S or CH740 carburetor

Rehlko (formerly Kohler) PA-CV742-3051 25 HP Command PRO Vertical Engine, 1-1/8" x 4-5/16" Shaft, Fuel Pump, HD Air Cleaner, Oil Cooler Best seller · CV742-3051 25 HP Command PRO $1,799.00
25,001
Kohler & Rehlko engines and parts
4.5–38 HP
Command PRO range, singles to EFI twins
21
part categories, from carbs to short blocks
1Find parts for my engineSearch your spec number for carbs, filters, gaskets and more.2Replace a complete engineEvery engine by spec, from 5.5 HP singles to 38 HP EFI twins.3Get a repower quoteSpec retired or not sure what fits? Send us the decal.4Maintenance kits & filtersOil and air filters, plugs and factory service kits.5Short blocks & rebuild partsBlocks, pistons, rings, gaskets, heads and cranks.

Shop by engine family

The letters at the start of your model number tell you the family: CV is a Command PRO with a vertical shaft, KT is 7000 Series, ZT is Confidant. Pick yours to see complete engines. Service parts are in the categories further down.

Command PRO CV · CHCommand PRO4.5–38 HP · vertical & horizontal shaftKohler's commercial line, found on zero-turns, walk-behinds, pressure washers, generators and industrial equipment. Single- and twin-cylinder.Shop → Command PRO EFI ECV · ECHCommand PRO EFIElectronic fuel injection · vertical & horizontalFuel-injected versions of the Command PRO twins, built for high-hour commercial mowing and industrial use.Shop → 7000 Series KT · KS7000 SeriesResidential twins & singles · vertical shaftThe engine on many residential lawn tractors and riding mowers.Shop → Confidant ZTConfidantResidential zero-turn twins · vertical shaftTwin-cylinder engines built for residential zero-turn mowers.Shop → Courage SV · SHCourageEarlier residential singles & twinsCommon on 2000s-era lawn tractors, riders and horizontal-shaft equipment. Many retired specs now ship as current replacements.Shop → Diesel engines KDW · KDIDiesel enginesCompact liquid-cooled dieselsKDW 1003 and KDI 1903 / 2504 diesels for compact equipment, generators and industrial machines.Shop →

Popular complete engines

Shipped as the exact spec your equipment was built with, so mounting, shaft, controls and wiring match.

All complete engines →

Shop Kohler parts by category

Every genuine Kohler/Rehlko service part we carry, sorted the way a parts counter would. Live item counts.

Complete EnginesBy exact spec number7,448 items Short & Long BlocksRebuild without a full repower650 items Carburetors & Fuel SystemCarbs, rebuild kits, pumps, EFI2,961 items Air Filters & Air CleanersElements, pre-cleaners, housings1,060 items Oil System & FiltersOil filters, dipsticks, coolers1,314 items Ignition & ElectricalModules, plugs, regulators, wiring2,387 items Starters & RecoilElectric starters and recoil assemblies410 items Gaskets, Seals & O-RingsGasket sets, head gaskets, oil seals2,577 items Pistons, Rings & Cylinders1,276 items Cylinder Heads & ValvetrainHeads, valves, springs, rockers1,069 items Crankshafts, Camshafts & Bearings2,537 items Governors, Linkage & ControlsThrottle and choke controls1,537 items Blower Housings, Flywheels & Cooling1,766 items Mufflers & Exhaust967 items Hoses, Tubes & Fittings1,278 items Drive, Clutches & Brakes476 items Brackets, Covers & Guards2,957 items Hardware & Fasteners4,769 items Service Kits & ToolsMaintenance kits and service tools234 items Other Engine Parts2,602 items Decals, Labels & Manuals1,414 items

Find your Kohler model, spec and serial number

Every Kohler engine has an identification decal, usually on the blower housing (the sheet-metal shroud over the flywheel) or on the valve cover. It lists three numbers. The spec number is the one that matters.

  1. Model number, e.g. CV742. The letters are the family (CV = Command PRO vertical shaft, CH = horizontal, ECV/ECH = EFI, KT = 7000 Series, ZT = Confidant, SV/SH = Courage). The digits are the size.
  2. Spec number, e.g. CV742-3051. This is the exact build: shaft, carburetion, air cleaner, starter and the equipment maker it was built for. Order complete engines and most parts by it. Engines sold for service often carry a PA- prefix (PA-CV742-3051 is spec CV742-3051).
  3. Serial number, which records when and where the engine was built. Some parts changed mid-production, so we may ask for it to confirm fit.

Can't read the decal? Send us a photo of it, plus your equipment's make and model, and we'll identify the engine for you.

Send my engine details
Engine identification
Spec No.CV742-3051Model No.CV742Serial No.3912801234FamilyCommand PRO
Illustration only. Decal layout varies by family and year. On current engines the spec number is the model followed by a four-digit build code.

Service parts pros reorder

Factory maintenance kits, filters and tune-up parts for the most common Kohler engines.

All filters →

Kohler engine families at a glance

A quick way to place your engine. For parts and replacements, always go by the full spec number.

FamilyModel starts withCrankshaftFuel systemTypical equipment
Command PROCV, CHVertical & horizontalCarburetedCommercial zero-turns and walk-behinds, generators, pressure washers, industrial
Command PRO EFIECV, ECHVertical & horizontalElectronic fuel injectionHigh-hour commercial mowers, vacuum and industrial equipment
7000 SeriesKT, KSVerticalCarburetedResidential lawn tractors and riding mowers
ConfidantZTVerticalCarburetedResidential zero-turn mowers
CourageSV, SHVertical & horizontalCarburetedEarlier residential tractors, riders and equipment
XTXT, XTXVerticalCarburetedWalk-behind mowers and pressure washers
DieselKDW, KDIHorizontalDieselCompact equipment, generators, industrial machines

Engine repower

Spec retired? We'll find the replacement.

Kohler retires older specs and replaces them with current builds made to fit the same equipment. Send your model, spec and serial, or a photo of the decal, and we'll quote the right replacement engine.

Get a repower quoteor call (646) 666-7225

Helpful links

Engine repower quoteSend your engine details and get a replacement engine quotedRead →Pro accounts & net termsTerms and volume pricing for dealers, shops and fleetsRead →Shipping & returnsStandard, Expedited and Need It Fast optionsRead →Full outdoor power catalogBelts, blades, transaxles, hardware and moreRead →
Genuine partsKohler and Rehlko parts, not aftermarket lookalikes.
The exact specEngines matched to the build your equipment shipped with.
Real peopleCall (646) 666-7225, Mon–Fri 7am–6pm ET, or email support@rfqqq.com.
Pro accountsNet terms and volume pricing for shops and fleets.

Kohler questions we get every week

Is Rehlko the same as Kohler engines?

Yes. Kohler's engine and power business became a stand-alone company in 2024 and was renamed Rehlko. The engines and parts keep the same part numbers, and boxes and decals may say Kohler, Rehlko or both. We list them under both names.

How do I find the right part for my Kohler engine?

Start with the spec number on the engine's identification decal, for example CV742-3051. Search it at the top of this page, or send us the model, spec and serial and we'll confirm the part before it ships.

My engine's spec number has been retired. Can I still replace it?

Usually, yes. Kohler replaces retired specs with current builds made to fit the same equipment. Use our repower quote form and we'll tell you which engine replaces yours and whether anything changes in the install.

Are your Kohler parts genuine?

Yes. Our Kohler and Rehlko engines and service parts are genuine, not aftermarket copies. Aftermarket alternatives from other brands are listed under their own brand names.

What's the difference between Command PRO and Command PRO EFI?

They're the same family. EFI models (model numbers starting ECV or ECH) use electronic fuel injection instead of a carburetor, so their fuel-system parts are different. Always order by the full spec number.

How fast do Kohler parts ship?

Each product page shows availability. At checkout, choose Standard (7–11 business days) or Expedited (3–7 business days). Or pick Need It Fast and we'll call you with faster options.

Do you offer pricing for shops and fleets?

Yes. Pro accounts get net terms and volume pricing on Kohler engines and parts.

Also shop

Hydro-Gear1,615 itemsTuff Torq4,583 items
Browse every Kohler item ↓

Browse all Kohler & Rehlko 25,001 items

25001 products