Technical Drawings Standard Equipment • Recoil Start with Automatic Compression Release • Fuel Tank • Fuel Filter • Dry Air Cleaner • Mufﬂer with Guard • Accelerator and Stop Manual Control • 12 V Electric Start with Control Panel • SAE J609a Ext 4 Crankshaft with Type B Mounting Flange • Fuel Safety Shutdown for Low Oil Pressure Accessories • Internal Dynamic Balancer • 24 V Electric Start • Accelerator and Stop Remote Control • Key Start Panel with Shutdown Device • Fuel Lift Pump • Oil Temperature Switch • Glow Plug on Intake Manifold • SAE J609a Ext 9, 6 and 3 Integral Crankshafts with Type B Mounting Flange • Extended Wiring Harness 403.0/15.86 335.5/13.20 31.0/1.22 138.5/5.45 512.0/20.15 120.0/4.72 120.0/4.72 196.70/7.74 509.0/20.03 488.0/19.21 155.0/6.10 4.0/ 0.15 203.5/8.01 99.0/3.89 54.0/2.12 14.0/0.55 49.0/1.92 120.0/4.72 120.0/4.72 45.0/1.77 5.5/0.21 5.5/0.21 96.0/3.77 8.0/0.31 21.0/0.82 5.0/0.19 23.0/0.90 105.0/4.13 25.0/0.98 4.0/0.15 8.0/0.31 33.0/1.29 135.0/5.31 5.0/0.19 KOHLER ® Diesel Model KD420 KOHLER Co., Kohler, Wisconsin 53044 • Tel: 920-457-4441 800-544-2444 • Fax: 920-459-1570 • KohlerEngines.com 4 of 4 Form E-2148 9/10 © 2010 by Kohler Co. Printed in U.S.A.

KOHLER Diesel - Kohler Power | Kohler · PDF file• 4-Stroke Air-Cooled Diesel Engine ... • Generator • Vibrating Plate ... 1000 rpm 2000 rpm 3000 rpm 3600 rpm dBA 65 70 80. Curves

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Page 1: KOHLER Diesel - Kohler Power | Kohler · PDF file• 4-Stroke Air-Cooled Diesel Engine ... • Generator • Vibrating Plate ... 1000 rpm 2000 rpm 3000 rpm 3600 rpm dBA 65 70 80. Curves

Technical Drawings

Standard Equipment

• Recoil Start with Automatic Compression Release• Fuel Tank• Fuel Filter• Dry Air Cleaner• Muffler with Guard• Accelerator and Stop Manual Control• 12 V Electric Start with Control Panel• SAE J609a Ext 4 Crankshaft with Type B Mounting Flange• Fuel Safety Shutdown for Low Oil Pressure

Accessories

• Internal Dynamic Balancer• 24 V Electric Start• Accelerator and Stop Remote Control• Key Start Panel with Shutdown Device• Fuel Lift Pump• Oil Temperature Switch• Glow Plug on Intake Manifold• SAE J609a Ext 9, 6 and 3 Integral Crankshafts with Type B Mounting Flange• Extended Wiring Harness

403.0/15.86 335.5/13.20

31.0/1.22138.5/5.45

512.0/20.15

120.0/4.72120.0/4.72

196.70/7.74

509.0/20.03

488.0/19.21

155.0/6.10

4.0/0.15

203.5/8.0199.0/3.8954.0/2.1214.0/0.55

49.0/1.92 120.0/4.72120.0/4.72

45.0/1.775.5/0.215.5/0.21

96.0/3.778.0/0.31

21.0/0.825.0/0.19

23.0/0.90105.0/4.13

25.0/0.98

4.0/0.158.0/0.31

33.0/1.29

135.0/5.31

5.0/0.19

KOHLER® DieselModel KD420

KOHLER Co., Kohler, Wisconsin 53044 • Tel: 920-457-4441

800-544-2444 • Fax: 920-459-1570 • KohlerEngines.com

Page 2: KOHLER Diesel - Kohler Power | Kohler · PDF file• 4-Stroke Air-Cooled Diesel Engine ... • Generator • Vibrating Plate ... 1000 rpm 2000 rpm 3000 rpm 3600 rpm dBA 65 70 80. Curves

1 Cylinder • 442 cc • 7.3 kW/9.8 hp • 3600 rpm • 17 ft lbs @ 2200 rpm

Certification

• EPA Tier 4 (Hand-Start Provision)• ECE R 24

Features

• 4-Stroke Air-Cooled Diesel Engine• SAE J609a Crankshaft• Counterclockwise Rotation• Direct Injection• Full-Pressure Lubrication• Centrifugal Mass Governor• Built-In Full-Flow Oil Filter• Oil-Breathing Blow-By with Safety Device• Automatic Extra-Fuel Starting Device• Self-Bleeding Fuel System• Torque Regulator• Automatic Compression Release• Die-Cast Aluminum Crankcase with Integral Cast-Iron Cylinder Liner• Aluminum Cylinder Head• Mounting Feet• Hydraulic Valve Lifters• EGR System

Applications

• Two-Wheel Tractor • Agricultural Mower• Water Pump • High-Pressure Cleaner• Generator• Vibrating Plate• Hydraulic Power Pack• Vibrating Roller

KOHLER® DieselModel KD420

Relentless Power.Legendary Performance.

Page 3: KOHLER Diesel - Kohler Power | Kohler · PDF file• 4-Stroke Air-Cooled Diesel Engine ... • Generator • Vibrating Plate ... 1000 rpm 2000 rpm 3000 rpm 3600 rpm dBA 65 70 80. Curves

SpecificationsCylindersDisplacementBoreStrokeCompression RatioRating kW/hp

Maximum TorqueMinimum Idling Speed rpmFuel Tank CapacityOil ConsumptionOil Sump CapacityMinimum Allowable Oil PressureMaximum Allowable Angle of Operation (Peak Values)Volume of Air Required for Correct Combustion @ 3600 rpmVolume of Air Required for Correct Cooling @ 3600 rpmDry WeightRecommended Minimum Battery SizeMinimum Pulley Diameters for Belt Drive

No. of Cylinders 1cc/cu in 442/27mm/in 86/3.4mm/in 76/3.0 20.3:1N (80/1269/CEE) ISO 1585 7.3/9.8NB ISO 3046 IFN 7.0/9.3NA ISO 3046 ICXN 6.4/8.6Nm/ft lbs @ 2200 rpm 23/17 950-1000liters/quarts 5/5.3kg/h/lb/h 0.0044/0.0097liters/quarts 1.5/1.6bar/psi 1-1.5/14.5-21.8 25° (35°)liters/min/cfm 580/20liters/min/cfm 5500/194kg/lb 45/99.1V/CCA Standard, Heavy-Duty 12/420, 510

D1 (mm) ≥ 620 [66+L2 (mm)] N (kW)

n (rpm)

D2 (mm) ≥ 650 [53+L1 (mm)] N (kW)

n (rpm)

Maximum Allowable Axial Load in Both Directions

A-B = 200 kg/441 lbf

Sound Pressure Level dBASound Pressure Level Polar Diagram Open Field at 7 Meters – No Load Running Engine

KOHLER® DieselModel KD420

3600 rpm3000 rpm2000 rpm1000 rpm

dBA

Page 4: KOHLER Diesel - Kohler Power | Kohler · PDF file• 4-Stroke Air-Cooled Diesel Engine ... • Generator • Vibrating Plate ... 1000 rpm 2000 rpm 3000 rpm 3600 rpm dBA 65 70 80. Curves

Curves

N Power Curve – 80/1269/CEE – ISO 1585 NB Power Curve – ISO 3046/1 – IFN NA Power Curve – ISO 3046/1 – ICXN MN Torque Curve – (N Curve) MB (B Curve – MA (A Curve) C Specific fuel consumption – (NB Curve)

KOHLER® DieselModel KD420