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Kohler Diesel Air-Cooled

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KD420

Kohler Diesel Air-Cooled

KD420

The diesel engine delivers the Performance Engineering standards you've come to expect from Kohler. The direct injection system produces increased power and lower fuel consumption. Full pressure lubrication offers superior cooling and performance combined with full-flow oil filters for longer engine and component life. Air cooling, horizontal shaft, single-cylinder design, and a cast iron liner set the standard for power and engineering excellence all back by a 3-year full warranty. Tier IV EPA/CARB Compliant.

HP
Shaft
Cylinders
Cooling
Fuel Type
Status
9.8 Horizontal Single Air Diesel Current
Overview
Features
Specs
Overview

Durable, Long Life Design.

Aluminum crankcase with re-borable cast iron cylinder liner provides extra protection in tough environments while full-pressure lubrication with full-flow filter ensures continuous oil flow to critical parts, extending the engine life.

High Power Performance.

Direct injection delivers increased power and lower fuel consumption.

Features

Reliability and Long Life Design.

  • Full pressure lubrication provides superior cooling and performance for longer component life.
  • Full-flow oil filters ensure longer engine life in tough environments.
  • Aluminum block with integrated re-borable cast-iron liner so there's less weight, longer life.
  • Counterbalanced crankshaft allows for lower vibration, reduced sound levels.
  • Direct injection for superior, more complete combustion produces increased power and lower fuel consumption.
  • Hydraulic lifters maintain valve adjustment with no scheduled maintenance.
Engine Uses
Specs

Engine Type:

Four-stroke, cast iron liner, direct injection, fully pressurized lubrication

Model
Diesel KD420
Max Power @3600 RPM hp (kW) 1 9.8 (7.3)
Displacement cu in (cc) 24.5 (442)
Bore in (mm) 3.4 (86)
Stroke in (mm) 3 (76)
Max Torque lbs. ft (Nm)1 17 (23)
Compression Ratio 20.3:1
Dry Weight lbs (kg) 99.1 (45)
Oil Capacity U.S. quarts (L) 1.6 (1.5)
Lubrication Full-pressure with full-flow filter
Dimensions L x W x H in 13.2 x 15.9 x 20.2
Backpressure Limit 2 --
J1995 Power hp (kW) 3 -- (--)
J1995 Torque lbs ft (Nm) 3 -- (--)
1 Max Power (hp) and Max Torque (lbs ft) specifications for Kohler general purpose engines are rated pursuant to Society of Automotive Engineers (SAE) J1940 based on gross output testing performed according to SAE J1995 without the air cleaner and muffler. Actual engine power and torque are lower and affected by accessories (air cleaner, exhaust, charging, cooling, fuel pump, etc.), application, engine speed, ambient operating conditions (temperature, humidity and altitude) and other factors. This J1940 / J1995 rating provides consistent measurement to customers who may want to control the intake and exhaust features of the engine. For more information, contact Kohler Co. Engine Engineering Department. Kohler Co. reserves the right to change product specifications, designs and standard equipment without notice and without incurring obligation.

2 Inches of H20 @ 3600 RPM WOT

3 J1995 power and torque certified by 3rd Party Witness