Exmark Navigator NVS730EKC48000 Replacement Engine — Kohler ECH730-3051 23 HP Command PRO EFI Horizontal Engine Click to zoom

Exmark Navigator NVS730EKC48000 Replacement Engine — Kohler ECH730-3051 23 HP Command PRO EFI Horizontal Engine

MPN Navigator NVS730EKC48000 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 Exmark Navigator NVS730EKC48000 front-mount mower? This is a brand-new, genuine Kohler ECH730-3051 (Rehlko spec PA-ECH730-3051) 23 HP Command PRO EFI horizontal-shaft engine — the engine spec used on Exmark machines such as the Navigator NVS730EKC48000.

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 Exmark machine: it should read ECH730-3051 / PA-ECH730-3051 or an older spec this engine replaces (ECH730-3035).
  • 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) ECH730-3051
Rehlko spec number PA-ECH730-3051
Series Command PRO EFI
Gross power 23 HP
Displacement 747 cc
Cylinders V-twin, OHV
Crankshaft orientation Horizontal
Fuel system Electronic fuel injection (EFI)
Oil capacity 2.0 qt (1.9 L)
Shipping weight 145 lb
Condition New, genuine OEM
Fits Exmark Navigator NVS730EKC48000

Frequently asked questions

What engine does the Exmark Navigator NVS730EKC48000 use?

This listing is the Kohler ECH730-3051 spec (23 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 ECH730-3051?

Yes — this is the same new Kohler/Rehlko engine sold on our Kohler ECH730-3051 page, listed here by machine for easy lookup.