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Kohler 30RFZ Generator Set

The Kohler 30RFZ is a 27 kW (34 kVA) Gasoline standby generator set powered by a Ford CSG-649 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 89 A. It holds 20.1 L (5.3 gal) of coolant, with a maximum ambient rating of 40 °C. The set measures 2242×737×1059 mm (88.3×29.0×41.7 in).

27 kW
Standby
300.0 L
Displacement
1
Document types

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Service parts for the 30RFZ

Grouped by system, with how many of each the parts manual calls for.

Hydraulic system

1 required
0-501-01010Hydraulic filtersee priceeBay

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

FuelGasoline
Frequency50.0 Hz
Standby power27 kW
Standby kVA34
Prime power24 kW
Alternator4P5
Voltage options110/220 V, 110/190 V, 220/380 V, 230/400 V, 240/416 V, 120/208 V
Phase3
Rated current89 A
Power factor0.8
Coolant capacity20.1 L
Max ambient40 °C
Dimensions (L×W×H)2242×737×1059 mm

Engine

Ford CSG-649
Coolant capacity15.0 L
Displacement300.0 L
AspirationNatural Aspiration
Rated speed2600 rpm

Maintenance & consumables

for the Ford CSG-649
ItemSpecCapacityPart #Interval
BatteryBCI Group 31 - 950 CCA (after 6-15-88)—
Coolant50% ethylene glycol and 50% clean, softened water28.8 L—
Hydraulic filter100 Mesh (141 Micron), 200 sq. in., reusable wire filter element, Marvel #8810-501-01010250 hr eBay
OilEO - per manufacturer recommendation—

Common questions

What size generator is the Kohler 30RFZ?

The Kohler 30RFZ is rated 27 kW standby (34.0 kVA).

What engine is in the Kohler 30RFZ?

The Kohler 30RFZ is powered by the Ford CSG-649 engine.

Is the Kohler 30RFZ diesel or gas?

The Kohler 30RFZ runs on Gasoline.

How much coolant does the Kohler 30RFZ hold?

The Kohler 30RFZ cooling system holds 20.1 liters (5.3 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the prime power rating of the Kohler 30RFZ?

The Kohler 30RFZ is rated 24 kW prime (30 kVA), against 27 kW standby.

What voltage does the Kohler 30RFZ produce?

The Kohler 30RFZ is offered in 110/220 V, 110/190 V, 220/380 V, 230/400 V, 240/416 V, 120/208 V, 3-phase.

What alternator comes on the Kohler 30RFZ?

The Kohler 30RFZ uses a 4P5 alternator.

Parts

44
Part #DescriptionQtySystem
240976Switch, high temperature 268298 Sender, temperature1Sensor Amazon eBay
254471Element, air cleanerAir filter Amazon eBay $54.34
255264Switch, low water temperature1Sensor Amazon eBay
258276Spark Plugs4Spark plug Amazon eBay
271425Switch, anticipatory low oil pressure1Sensor Amazon eBay $100.79 NAPA $182.69
276206Hose, molded1Hose Amazon eBay
3-333-10040BMC No. 3-333-10040 (Cummins)1Pump drive eBay
3-333-10070BMC No. 3-333-10070 (Cummins)1Pump drive eBay
501-01010BMC No. 0-501-010101Suction strainer eBay
501-01018BMC No. 0-501-010181Return line filter eBay
520-00021BMC No. 0-520-000211Pump eBay
540-10034BMC No. 3-540-100341Outrigger cylinders eBay
540-40043BMC No. 3-540-40043; Tip Section - 3-540-400441Boom extension cylinder eBay
540-40047BMC No. 3-540-40047; Tip Section - 3-540-400381Boom extension cylinder eBay
540-80025BMC No. 3-540-800251Boom elevating cylinder eBay
550-00075BMC No. 0-550-000751Winch and extension control valve eBay
550-00080BMC No. 0-550-00080 (Standard 4-spool)1Boom and outrigger control valve eBay
550-00081BMC No. 0-550-00081 (Optional 5-spool - Req'd w/opt. Front Winch)1Boom and outrigger control valve eBay
552-00013BMC No. 0-552-000131Outrigger cylinder holding valve eBay
552-00041BMC No. 0-552-000411Boom elevation cylinder holding valve eBay
X-577-41Hose1Hose Amazon eBay
X-797-2Hose, flex1Hose Amazon eBay
0-861-16012BMC No. 0-861-160121Service part / kit eBay
2-651-00060WARNING NEVER USE A ROPE CLIP ON LIVE SIDE OF THE LOAD HOIST ROPE. THIS WILL SERIOUSLY WEAKEN THE ROPE. DEATH OR SERIOUS INJURY CAN RESULT FROM THE USE OF A ROPE CLIP ON THE HOIST ROPE.Service part / kit eBay
276370Engine Block Heater Service Kit Tank Type 30RZ 120V1Service part / kit Amazon eBay
276371Engine Block Heater Service Kit Tank Type 30RZ 240V1Service part / kit Amazon eBay
285127Silencer Industrial I-N (Table 1)1Service part / kit Amazon eBay
285775Silencer Residential R-M (Table 1)1Service part / kit Amazon eBay
286788Silencer Critical C-BM (Table 1)1Service part / kit Amazon eBay $129.99
290483Silencer Residential R-BM (Table 1)1Service part / kit Amazon eBay
290484Silencer Residential R-N (Table 1)1Service part / kit Amazon eBay
290495Silencer Critical C-M (Table 1)1Service part / kit Amazon eBay
290496Silencer Critical C-N (Table 1)1Service part / kit Amazon eBay
326222Block Heater1Service part / kit Amazon eBay
326224Block Heater1Service part / kit Amazon eBay
326230Installed Block Heater Kit (120V)Service part / kit Amazon eBay
326231Installed Block Heater Kit (240V)Service part / kit Amazon eBay
343160Switch, high water temperature1Service part / kit Amazon eBay
345207Switch, vacuum1Service part / kit Amazon eBay
9-340-00030Shim - .040" - Gresen #0458-001Service part / kit eBay
9-340-00031Shim - .020" - Gresen #0459-001Service part / kit eBay
9-340-00032Shim - .010" - Gresen #0462-001Service part / kit eBay
9-340-00070Work Port Relief Valve-Gresen #7460-002-PS-1500-CService part / kit eBay
A-258495LP Gas Mixer1Service part / kit Amazon eBay

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
Prime25%7.572.0
Prime50%9.842.6
Prime75%11.733.1
Prime100%14.763.9

Available documents

Spec sheet — 44923002 kohler 30rz spec sheet (Kohler)

This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

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