Rehlko (formerly Kohler) PA-CV173-3020 5.5 HP Command PRO Vertical Engine Click to zoom

Scag SFC21-5CV Replacement Engine — Kohler CV173-3017 5.5 HP Command PRO Vertical Engine

MPN SFC21-5CV 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 Scag SFC21-5CV walk-behind mower? This is a brand-new, genuine Kohler CV173-3017 (Rehlko spec PA-CV173-3017) 5.5 HP Command PRO vertical-shaft engine — the engine spec used on Scag machines such as the SFC21-5CV.

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 Scag machine: it should read CV173-3017 / PA-CV173-3017.
  • 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) CV173-3017
Rehlko spec number PA-CV173-3017
Series Command PRO
Gross power 5.5 HP
Cylinders single-cylinder, OHV
Crankshaft orientation Vertical
Fuel system Carbureted gasoline
Condition New, genuine OEM
Fits Scag SFC21-5CV

Frequently asked questions

What engine does the Scag SFC21-5CV use?

This listing is the Kohler CV173-3017 spec (5.5 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 CV173-3017?

Yes — this is the same new Kohler/Rehlko engine sold on our Kohler CV173-3017 page, listed here by machine for easy lookup.