Walker Model C19 Replacement Engine — Kohler CH620-3198 19 HP Command PRO Horizontal Engine Click to zoom

Kohler CH620-3198 19 HP Command PRO Horizontal Engine, Flush Crankshaft, Remote Air Cleaner (for Walker Mowers)

MPN CH620-3198

In stockEngines

Specifications

Manufacturer
Kohler (now Rehlko)
Part number (MPN)
CH620-3198
Rehlko spec number
PA-CH620-3198
Series
Command PRO
Gross power
19 HP
Displacement
674 cc
Cylinders
V-twin, OHV
Crankshaft orientation
Horizontal
Crankshaft
Flush crankshaft
Fuel system
Carbureted gasoline
Air cleaner
Remote Air Cleaner
Oil capacity
2.0 qt (1.9 L)
Shipping weight
151 lb
OEM application
Walker Mowers
Condition
New, genuine OEM
Shipping
$200 flat-rate LTL freight (lower 48 + DC)

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.

The Kohler CH620-3198 is a 19 HP 674cc Command PRO V-twin horizontal-shaft engine with flush crankshaft and remote air cleaner. This spec is built for Walker Mowers equipment.

Kohler Engines now operates under the name Rehlko. This is the same genuine Kohler CH620-3198 engine (Rehlko spec PA-CH620-3198); new units may carry Rehlko branding.

Why buy the CH620-3198 from RFQQQ

  • Brand new, genuine Kohler OEM engine backed by the manufacturer's engine warranty
  • $200 flat-rate LTL freight to the lower 48 + DC; Expedited / Need It Fast available
  • Pro accounts, net terms and POs for dealers, rental yards and landscape contractors
  • Real people on the phone at (646) 666-7225 to confirm fitment before you order

Key features

  • 19 HP 674cc Command PRO V-twin engine
  • Horizontal crankshaft: Flush crankshaft
  • Remote Air Cleaner
  • Oil capacity 2.0 qt (1.9 L); Rehlko/Kohler 10W-40 synthetic recommended (OCK-RKC-10440)
  • Commercial-duty Command PRO design with cast-iron cylinder liners

Specifications

Manufacturer Kohler (now Rehlko)
Part number (MPN) CH620-3198
Rehlko spec number PA-CH620-3198
Series Command PRO
Gross power 19 HP
Displacement 674 cc
Cylinders V-twin, OHV
Crankshaft orientation Horizontal
Crankshaft Flush crankshaft
Fuel system Carbureted gasoline
Air cleaner Remote Air Cleaner
Oil capacity 2.0 qt (1.9 L)
Shipping weight 151 lb
OEM application Walker Mowers
Condition New, genuine OEM
Shipping $200 flat-rate LTL freight (lower 48 + DC)

Fitment and replacement notes

  • Muffler, mounting hardware and OEM-specific brackets are generally not included unless noted — reuse your existing exhaust and hardware.
  • Before ordering, match crankshaft diameter and length, mounting pattern, PTO/clutch, fuel and wiring connections to your current engine tag. Not sure? Call (646) 666-7225 with your engine model and spec number and we'll confirm.

Frequently asked questions

Is the CH620-3198 a Kohler or a Rehlko engine?

Both. Kohler Engines rebranded to Rehlko; the design, factory and part number are unchanged. Kohler CH620-3198 and Rehlko PA-CH620-3198 are the same engine.

How much does shipping cost?

Engines ship palletized by LTL freight for a flat $200 to the lower 48 states and DC. Expedited / Need It Fast ($235.95) is available at checkout — we call you with the fastest options.

What is the crankshaft size?

Flush crankshaft (horizontal shaft). Always confirm against your original engine before ordering.

Is this a genuine OEM engine?

Yes — brand new, genuine Kohler engine with the manufacturer's warranty.

Not the right engine?

Get a repower quote

Old engine discontinued or out of stock? Send us the model/spec from your engine and we'll match a current replacement that bolts in.

Request a repower quote

Free · No obligation · Quoted within 1–2 business days