Operating Guide

14 37 590 01 Rev. IKohlerPower.com
Specications
Model
PRO 3.7/
PRO 3.7 E
PRO 5.2/
PRO 5.2 E
PRO 7.5/
PRO 7.5 E
Overall Dimensions (L x W x H)
24.3 in. (617 mm)
18.8 in. (478 mm)
19.2 in. (488 mm)
26.4 in. (670 mm)
21.5 in. (545 mm)
21.1 in. (535 mm)
Dry Weight
138 lbs. (63 kg)/
154 lbs. (70 kg)
180 lbs. (82 kg)/
201 lbs. (91 kg)
199 lbs. (90 kg)/
220 lbs. (100 kg)
AC Rated Power
3000
Watt
(120 Volts x
25.0 Amps)
4500
Watt
(120 Volts x
37.5 Amps)
6300
Watt
(120 Volts x
52.5 Amps)
(240 Volts x
12.5 Amps)
(240 Volts x
18.8 Amps)
(240 Volts x
26.3 Amps)
AC Maximum Power
3700
Watt
(120 Volts x
30.8 Amps)
5200
Watt
(120 Volts x
43.3 Amps)
7500
Watt
(120 Volts x
62.5 Amps)
(240 Volts x
15.4 Amps)
(240 Volts x
21.7 Amps)
(240 Volts x
31.3 Amps)
DC Rated Power 100 Watt (12 Volts x 8.3 Amps)
Engine Specications
Bore 2.8 in. (70 mm) 3.5 in. (89 mm)
Stroke 2.1 in. (54 mm) 2.7 in. (69 mm)
Displacement 12.7 cu. in. (208 cc) 26.2 cu. in. (429 cc)
Oil Capacity (Rell)
0.63 U.S. qt.
(0.60 L)
1.16 U.S. qt. (1.1 L)
Maximum Angle of Operation
(@ full oil level)*
25°
Run Time 9 hours (1/2 load) 13 hours (1/2 load) 12 hours (1/2 load)
Fuel See fuel section
Fuel Tank Capacity 3.4 gal. (13.0 L) 8 gal. (30.2 L)
Spark Plug Gap 0.03 in. (0.76 mm)
*Exceeding maximum angle of operation may cause engine damage from insufcient lubrication.
Additional specication information can be found at KohlerPower.com.
Exhaust Emission Control System for models PRO 3.7, PRO 3.7 E, PRO 5.2, PRO 5.2 E, PRO 7.5
and PRO 7.5 E is EM for U.S. EPA, California, and Europe.