HomeKohlerKohler 70RFZ

Kohler 70RFZ Generator Set

The Kohler 70RFZ is a 50 kW (63 kVA) Natural Gas standby generator set powered by a Ford LSG-875 engine. It is available at 110/220 V, 110/190 V, 220/380 V, 230/400 V, 240/416 V and 120/208 V, 3-phase, 50 Hz and rated 190 A. It holds about 8.5 L (2.2 gal) of oil and 26.1 L (6.9 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses 1 battery rated 630 CCA at 12 V. The set measures 2242×864×1108 mm (88.3×34.0×43.6 in) and weighs about 950 kg (2094 lb). The same LSG-875 engine also powers generator sets from RSI.

50 kW
Standby
7.538 L
Displacement
8.5 L
Oil capacity
1
Document types

How to read your Kohler serial & model number →

Specifications

FuelNatural Gas
Frequency50.0 Hz
Standby power50 kW
Standby kVA63
Prime power46 kW
Oil capacity8.5 L
AlternatorKohler 4S7 (4-pole, Class H insulation)
Voltage options110/220 V, 110/190 V, 220/380 V, 230/400 V, 240/416 V, 120/208 V
Phase3
Rated current190 A
Power factor0.8
Battery cranking630 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity26.1 L
Max ambient40 °C
Dimensions (L×W×H)2242×864×1108 mm
Dry weight950 kg

Engine

Ford LSG-875
Oil capacity8.5 L
Coolant capacity28.4 L
Displacement7.538 L
AspirationTurbocharger
Rated speed1800 rpm

Maintenance & consumables

for the Ford LSG-875
ItemSpecCapacityPart #Interval
Air filter69 hr find
Fuel filter find
Oil filter×169 hr find
Belt69 hr find
Coolant
Oil

Common questions

What is the power rating of the Kohler 70RFZ?

The Kohler 70RFZ is rated 50 kW standby (63.0 kVA).

What engine does the Kohler 70RFZ use?

The Kohler 70RFZ is powered by the Ford LSG-875 engine.

What fuel does the Kohler 70RFZ use?

The Kohler 70RFZ runs on Natural Gas.

What is the oil capacity of the Kohler 70RFZ?

The Ford LSG-875 engine in the Kohler 70RFZ has an oil capacity of 8.5 liters.

What alternator does the Kohler 70RFZ use?

The Kohler 70RFZ uses a Kohler 4S7 alternator. It has 4 poles. Insulation class H.

Parts

39
Part #DescriptionQtySystem
241481Switch, high temperature 268298 Sender, water temperature1Sensor PartsGeek
255264Switch, low temperature1Sensor PartsGeek
255913Switch, pressure1Sensor PartsGeek
276206Hose, molded1Hose PartsGeek
952-696Gasket1Gasket PartsGeek
X-577-6Hose, 5/8 ID x 112Hose PartsGeek
X-797-1Hose, flex1Hose PartsGeek
X-797-11Hose, flex1Hose PartsGeek
X-797-2Hose, flex1Hose PartsGeek
276691Heater, block1Service part / kit PartsGeek
276692Heater, block1Service part / kit PartsGeek
285054Silencer Residential R-M (Table 3)1Service part / kit PartsGeek
285086Silencer Industrial I-N (Table 3)1Service part / kit PartsGeek
285127Silencer Industrial I-N (Table 1)1Service part / kit PartsGeek
285775Silencer Residential R-M (Table 1)1Service part / kit PartsGeek
286788Silencer Critical C-BM (Table 1)1Service part / kit PartsGeek
290483Silencer Residential R-BM (Table 1)1Service part / kit PartsGeek
290484Silencer Residential R-N (Table 1)1Service part / kit PartsGeek
290485Silencer Residential R-BM (Table 3)1Service part / kit PartsGeek
290486Silencer Residential R-N (Table 3)1Service part / kit PartsGeek
290489Silencer Critical C-M (Table 3)1Service part / kit PartsGeek
290490Silencer Critical C-N (Table 3)1Service part / kit PartsGeek
290495Silencer Critical C-M (Table 1)1Service part / kit PartsGeek
290496Silencer Critical C-N (Table 1)1Service part / kit PartsGeek
952-048Pipe Plug 3/8 - 18 x .42 socket hex1Service part / kit PartsGeek
952-234Bolt - 5/16 - 18 x .8751Service part / kit PartsGeek
952-486Dowel - 1/2 x 1.001Service part / kit PartsGeek
952-539Bolt - 5/16 - 18 x 2.001Service part / kit PartsGeek
952-553Plug - Oil Passage In Block - 1/4 NPT1Service part / kit PartsGeek
952-554Plug - Water Drain - 1/4 NPT - Brass1Service part / kit PartsGeek
952-556Dowel1Service part / kit PartsGeek
952-561Plug - .060 O/S1Service part / kit PartsGeek
952-563Plug - 5/8 - 181Service part / kit PartsGeek
952-569Plug - Camshaft Rear Bearing - Standard1Service part / kit PartsGeek
952-570Plug - Camshaft Rear Bearing - .060 O/S1Service part / kit PartsGeek
952-577Pointer1Service part / kit PartsGeek
952-596Plug - 1.50 Cup1Service part / kit PartsGeek
952-688Cover1Service part / kit PartsGeek
952-689Block1Service part / kit PartsGeek

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Standby25%
Standby50%
Standby75%
Standby100%

Available documents

Spec sheet — Kohler-70RZ-spec-sheet (Kohler)