Kohler PA-CH640-3165 20.5 HP Command, Horizontal 11 Tooth Internal Spline Shaft, Fuel Pump, Snorkle Air Cleaner, 20 Amp Alt, Supersedes CH640-0020,... Click to zoom

Kohler CH640-3165 20.5 HP Command PRO Horizontal Engine, Fuel Pump

MPN CH640-3165

In stockEngines

Specifications

Manufacturer
Kohler (now Rehlko)
Part number (MPN)
CH640-3165
Rehlko spec number
PA-CH640-3165
Series
Command PRO
Gross power
20.5 HP
Displacement
674 cc
Cylinders
V-twin, OHV
Crankshaft orientation
Horizontal
Fuel system
Carbureted gasoline
Fuel pump
Yes
Starter
Electric Start
Charging
20 Amp
Oil capacity
2.0 qt (1.9 L)
Muffler
Included
Shipping weight
151 lb
OEM application
Gardner (OEM service spec)
Condition
New, genuine OEM
Shipping
$200 flat-rate LTL freight (lower 48 + DC)
Equivalents
PA-CH641-3017

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 CH640-3165 is a 20.5 HP 674cc Command PRO V-twin horizontal-shaft engine with a fuel pump and 20 amp charging. Factory spec: CH640 E16 GARDNER - MORBARK.

Kohler Engines now operates under the name Rehlko. This is the same genuine Kohler CH640-3165 engine (Rehlko spec PA-CH640-3165); new units may carry Rehlko branding.

Why buy the CH640-3165 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

  • 20.5 HP 674cc Command PRO V-twin engine
  • Fuel pump included
  • Electric Start, 20 Amp charging
  • 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) CH640-3165
Rehlko spec number PA-CH640-3165
Series Command PRO
Gross power 20.5 HP
Displacement 674 cc
Cylinders V-twin, OHV
Crankshaft orientation Horizontal
Fuel system Carbureted gasoline
Fuel pump Yes
Starter Electric Start
Charging 20 Amp
Oil capacity 2.0 qt (1.9 L)
Muffler Included
Shipping weight 151 lb
OEM application Gardner (OEM service spec)
Condition New, genuine OEM
Shipping $200 flat-rate LTL freight (lower 48 + DC)

Fitment and replacement notes

  • Factory replacement for older spec CH641-3017 (Gardner).
  • 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 CH640-3165 a Kohler or a Rehlko engine?

Both. Kohler Engines rebranded to Rehlko; the design, factory and part number are unchanged. Kohler CH640-3165 and Rehlko PA-CH640-3165 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 does the CH640-3165 replace?

It is the factory replacement for CH641-3017.

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