Grasshopper 725KT Replacement Engine — Kohler CH742-3129 25 HP Command PRO Horizontal Engine Click to zoom

Grasshopper 725KT Replacement Engine — Kohler CH742-3129 25 HP Command PRO Horizontal Engine

MPN 725KT ENGINE

In stockReplacement Engine

Overview

🚚 Flat-rate LTL freight: $200
Ships palletized by LTL freight to the lower 48 states + DC for a flat $200. Need it fast? Choose Expedited or Need It Fast ($235.95) at checkout and we'll call you with the fastest options.

Need a replacement engine for your Grasshopper 725KT front-mount mower? This is a brand-new, genuine Kohler CH742-3129 (Rehlko spec PA-CH742-3129) 25 HP Command PRO horizontal-shaft engine — the engine spec used on Grasshopper machines such as the 725KT.

Kohler Engines now operates as Rehlko; same engine, same factory, same part number. Ships new in the crate with the manufacturer's engine warranty.

Before you order: confirm fitment

  • Check the engine tag on your Grasshopper machine: it should read CH742-3129 / PA-CH742-3129.
  • Match crankshaft diameter and length, mounting pattern, PTO/clutch, fuel and wiring connections.
  • Not sure which engine your machine has? Call (646) 666-7225 with your machine model and serial number and we'll confirm the right spec.

Engine specifications

Manufacturer Kohler (now Rehlko)
Part number (MPN) CH742-3129
Rehlko spec number PA-CH742-3129
Series Command PRO
Gross power 25 HP
Displacement 747 cc
Cylinders V-twin, OHV
Crankshaft orientation Horizontal
Fuel system Carbureted gasoline
Oil capacity 2.0 qt (1.9 L)
Shipping weight 151 lb
Condition New, genuine OEM
Fits Grasshopper 725KT

Frequently asked questions

What engine does the Grasshopper 725KT use?

This listing is the Kohler CH742-3129 spec (25 HP). Always confirm against the tag on your existing engine.

How much is shipping?

Engines ship palletized by LTL freight for a flat $200 to the lower 48 + DC. Expedited / Need It Fast ($235.95) is available at checkout.

Is this the same engine as Kohler CH742-3129?

Yes — this is the same new Kohler/Rehlko engine sold on our Kohler CH742-3129 page, listed here by machine for easy lookup.