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Kohler 60REZG Generator Set

The Kohler 60REZG is a 60 kW (75 kVA) Natural Gas / LP standby generator set. It is available at 480 V, 3-phase, 60 Hz and rated [None, None] A. It holds about 4.7 L (1.2 gal) of oil and 20.8 L (5.5 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 1 group-1 battery rated 630 CCA at 12 V. The set measures 2200×1040×1172 mm (86.6×40.9×46.1 in), weighs about [None, None] kg (None lb) and produces 69 dBA at 23 m.

60 kW
Standby
4.7 L
Oil capacity
4
Document types

How to read your Kohler serial & model number →

Typical fuel consumption for 60–65 kW Bi-Fuel (NG/LP) generators →

Compare with other 60–65 kW Bi-Fuel (NG/LP) generators →

Service parts for the 60REZG

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

Air intake

1 required

Fuel system

1 required
343302Fuel filtersee priceAmazon

Oil system

1 required

Belts

1 required

Electrical

1 required

Ignition

1 required

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

Specifications

FuelNatural Gas / LP
Frequency60.0 Hz
Standby power60 kW
Standby kVA75
Prime power54 kW
EmissionsTier 1
ControllerDecision-Maker 3+, Decision-Maker 550
Oil capacity4.7 L
AlternatorFast-Response II (FRII)
Voltage options120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 277/480 V, 347/600 V
Phase3
Rated current[None, None] A
Power factor0.8
Battery group1
Battery cranking630 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity20.8 L
Engine jacket water6.8 L
Max ambient50 °C
Dimensions (L×W×H)2200×1040×1172 mm
Sound level69.0 dBA @ 23 m

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filter253107200 hr Amazon eBay $69.00 NAPA $55.23
Fuel filter3433023652 hr Amazon eBay
Oil filterGM16703150 hr Amazon eBay $58.00 NAPA $3.59
Battery1/12V, 650CCA, Wet256985 Amazon eBay
BeltGM16132 Amazon eBay $86.00
Spark plugGM165313652 hr Amazon eBay $8.08 NAPA $5.38

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Service specifications

60
TypeItemValueUnitCondition
Other10 in. weld flange bolt circle diameter B361.95mm (14.25 in.)
Other10 in. weld flange outside diameter C406.4mm (16.0 in.)
Other10 in. weld flange quantity of bolts / bolt hole diameter D12, 25.40mm (1.00 in.)
Other12 in. weld flange bolt circle diameter B431.80mm (17.00 in.)
Other12 in. weld flange outside diameter C482.6mm (19.0 in.)
Other12 in. weld flange quantity of bolts / bolt hole diameter D12, 25.40mm (1.00 in.)
Other14 in. weld flange bolt circle diameter B476.25mm (18.75 in.)
Other14 in. weld flange outside diameter C533.4mm (21.0 in.)
Other14 in. weld flange quantity of bolts / bolt hole diameter D12, 28.58mm (1.13 in.)
Other16 in. weld flange bolt circle diameter B539.75mm (21.25 in.)
Other16 in. weld flange outside diameter C596.9mm (23.5 in.)
Other16 in. weld flange quantity of bolts / bolt hole diameter D16, 28.58mm (1.13 in.)
Other18 in. weld flange bolt circle diameter B577.85mm (22.75 in.)
Other18 in. weld flange outside diameter C635.0mm (25.0 in.)
Other18 in. weld flange quantity of bolts / bolt hole diameter D16, 31.75mm (1.25 in.)
Other20 in. weld flange bolt circle diameter B635.00mm (25.00 in.)
Other20 in. weld flange outside diameter C698.5mm (27.5 in.)
Other20 in. weld flange quantity of bolts / bolt hole diameter D20, 31.75mm (1.25 in.)
Other5 in. weld flange bolt circle diameter B215.90mm (8.50 in.)
Other5 in. weld flange outside diameter C241.30mm (9.50 in.)
Other5 in. weld flange quantity of bolts / bolt hole diameter D8, 22.23mm (0.88 in.)
Other6 in. weld flange bolt circle diameter B254.0mm (10.0 in.)
Other6 in. weld flange outside diameter C279.4mm (11.0 in.)
Other6 in. weld flange quantity of bolts / bolt hole diameter D8, 22.23mm (0.88 in.)
Other8 in. weld flange bolt circle diameter B298.45mm (11.75 in.)
Other8 in. weld flange outside diameter C342.9mm (13.5 in.)
Other8 in. weld flange quantity of bolts / bolt hole diameter D8, 22.23mm (0.88 in.)
OtherWeld flange angle A (10, 12, 14 in. nominal pipe size)30deg.
OtherWeld flange angle A (16, 18, 20 in. nominal pipe size)22.5deg.
OtherWeld flange angle A (5, 6, 8 in. nominal pipe size)45deg.
Torque1-12 fastener283.0 (209)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque1-8 fastener259.0 (191)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque1/2-13 fastener60.0 (44)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque1/2-20 fastener66.0 (49)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque1/4-20 fastener6.8 (60)Nm (in. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque1/4-28 fastener8.1 (72)Nm (in. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque10-24 fastener2.9 (26)Nm (in. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque10-32 fastener2.9 (26)Nm (in. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque3/4-10 fastener199.0 (147)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque3/4-16 fastener222.0 (164)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque3/8-16 fastener24.0 (18)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque3/8-24 fastener27.0 (20)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque5/16-18 fastener13.6 (120)Nm (in. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque5/16-24 fastener14.9 (132)Nm (in. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque5/8-11 fastener113.0 (83)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque5/8-18 fastener128.0 (94)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque7/16-14 fastener39.0 (29)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque7/16-20 fastener43.0 (32)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque8-32 fastener1.8 (16)Nm (in. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque9/16-12 fastener81.0 (60)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
Torque9/16-18 fastener91.0 (67)Nm (ft. lb.)Assembled into cast iron or steel, Grade 2 or 5
TorqueM10 x 1.25 fastener31.0 (23)Nm (ft. lb.)Assembled into cast iron or steel, Grade 5.8 or 8.8
TorqueM10 x 1.50 fastener30.0 (22)Nm (ft. lb.)Assembled into cast iron or steel, Grade 5.8 or 8.8
TorqueM12 x 1.50 fastener56.0 (41)Nm (ft. lb.)Assembled into cast iron or steel, Grade 5.8 or 8.8
TorqueM12 x 1.75 fastener53.0 (39)Nm (ft. lb.)Assembled into cast iron or steel, Grade 5.8 or 8.8
TorqueM14 x 1.50 fastener87.0 (64)Nm (ft. lb.)Assembled into cast iron or steel, Grade 5.8 or 8.8
TorqueM14 x 2.00 fastener83.0 (61)Nm (ft. lb.)Assembled into cast iron or steel, Grade 5.8 or 8.8
TorqueM16 x 1.50 fastener132.0 (97)Nm (ft. lb.)Assembled into cast iron or steel, Grade 5.8 or 8.8
TorqueM16 x 2.00 fastener127.0 (94)Nm (ft. lb.)Assembled into cast iron or steel, Grade 5.8 or 8.8
TorqueM18 x 1.50 fastener189.0 (140)Nm (ft. lb.)Assembled into cast iron or steel, Grade 5.8 or 8.8

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

2
Common Hardware Application installation
  1. Determine entry hole type: round or slotted.
  2. Determine exit hole type: fixed female thread (weld nut), round, or slotted.
  3. For round and slotted exit holes, determine if hardware is greater than 1/2 inch in diameter.
  4. Hardware greater than 1/2 inch in diameter uses a standard nut and SAE washer.
  5. Hardware 1/2 inch or less in diameter can use a properly torqued whiz nut or spiralock nut.
  6. Always use a washer between hardware and a slot.
  7. Always use a washer under a nut.
  8. Use a washer under a bolt when the female thread is fixed (weld nut).
How to Find Part Numbers operation
  1. Locate the generator set nameplate to identify the generator set spec number.
  2. Locate the second nameplate listing accessories to identify installed modules; on some models it is inside the junction box.
  3. Turn to the Specification Number Index; the first column lists generator set spec numbers.
  4. Identify the group most likely to include the service part number.
  5. Find the group variation number at the intersection of the spec number row and group column.
  6. Page forward to locate that group or find the page in the Table of Contents.
  7. Find the part on the illustration and note the item number, or find the part description in the parts list.
  8. Select the part number that corresponds to your group variation using the column on the right side of the parts list table.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

VoltagePhaseConnectionLeadsNotes
12-LeadAlternator Reconnections diagram ADV-5875B-M (page 16)
12-lead optional voltage connections12Alternator optional feature
4-LeadAlternator Reconnections diagram ADV-5875A-M (page 15)
4-lead dedicated voltages4Alternator standard feature
110/127/139/240/254/277single-phaseswitchableTowable generator model specifications; some models n/a
208/220/240/415/440/4803-phasereconnectableTowable generator model specifications
208/220/240/415/440/4803-phaseswitchableTowable generator model specifications

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the power rating of the Kohler 60REZG?

The Kohler 60REZG is rated 60 kW standby (75.0 kVA).

What fuel does the Kohler 60REZG use?

The Kohler 60REZG runs on Natural Gas / LP.

What is the coolant capacity of the Kohler 60REZG?

The Kohler 60REZG cooling system holds 20.8 liters (5.5 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the oil capacity of the Kohler 60REZG?

The Kohler 60REZG has an engine oil capacity of 4.7 liters (5.0 US quarts), per the manufacturer specification sheet.

What is the prime power rating of the Kohler 60REZG?

The Kohler 60REZG is rated 54 kW prime (67 kVA), against 60 kW standby.

What is the sound level of the Kohler 60REZG?

The Kohler 60REZG is rated at 69.0 dBA at 23 m, per the manufacturer specification sheet.

What voltage does the Kohler 60REZG produce?

The Kohler 60REZG is offered in 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 277/480 V, 3-phase.

How many cold cranking amps does the Kohler 60REZG require?

The Kohler 60REZG uses 1 battery, 12 V each, 630 CCA, group 1, per the manufacturer specification sheet.

What alternator comes on the Kohler 60REZG?

The Kohler 60REZG uses a Fast-Response II (FRII) alternator.

What oil filter does the Kohler 60REZG use?

The Kohler 60REZG uses oil filter part number GM16703.

What fuel filter does the Kohler 60REZG use?

The Kohler 60REZG uses fuel filter part number 343302.

Which air filter part number does the Kohler 60REZG take?

The Kohler 60REZG uses air filter part number 253107.

Parts

98model family
Part #DescriptionQtySystem
250081Clamp, hose (2)Hose Amazon eBay
253104Air filterAir filter Amazon eBay
253107Element, Air Cleaner1Air filter Amazon eBay $69.00 NAPA $55.23
291542Air filterAir filter Amazon eBay
328006Hose, reducer (3.00 in. to 2.50 in. ID)1Hose Amazon eBay
359249Hose, 45 deg. elbow (3.00 in. ID)1Air filter Amazon eBay
GM14200Mount, Air Cleaner ( 6.76”ID)1Air filter Amazon eBay
GM16132Belt, fan standard1Belt Amazon eBay $86.00
GM16133Gasket, intake manifold1Gasket eBay
GM16140Cap, Bypass 5/8” (includes cap, connector, hose, clamps)1Hose eBay
GM16158Hose, PCV, 3/8” (37 in.)1Hose Amazon eBay
GM16180Alternator, 70 amp1Alternator eBay
GM16199Gasket, manifold exhaust2Gasket eBay
GM16202Gasket, intake manifold1Gasket eBay
GM16348Gasket, valve rocker arm cover2Gasket eBay
GM16353Gasket, cylinder head (60 kw)2Gasket eBay
GM16360Gasket, distributor1Gasket Amazon eBay
GM16362Gasket, oil pan1Gasket eBay
GM16366Seal, crankshaft front oil1Seal Amazon eBay
GM16385Seal, intake valve stem oil6Seal Amazon eBay
GM16474Seal, crankshaft rear oil1Seal eBay
GM16482Pump, oil (.742 dia. Tube)1Pump Amazon eBay
GM16483Gasket, water pump cover1Gasket Amazon eBay
GM16496Seal, exh vlv stem Oil6Seal Amazon eBay
GM16531Spark plug1Spark plug Amazon eBay $8.08 NAPA $5.38
GM16536Gasket, thermostat cover1Gasket Amazon eBay
GM16537Thermostat, 160 degree1Oil filter Amazon eBay $22.50
GM16582Gasket, water pump1Gasket Amazon eBay
GM16703Filter, oil1Oil filter Amazon eBay $58.00 NAPA $3.59
GM19726Thermostat1Thermostat Amazon eBay
GM22171Spark plug8Spark plug Amazon eBay
GM28351Filter, oil1Oil filter Amazon eBay $19.46 NAPA $9.09
GM38981Gasket, crankshaft rear oil seal housing1Gasket eBay
GM38998Spark plug1Spark plug Amazon eBay
GM39227Sensor, 1 bar TMAP1Sensor eBay
GM39428Belt, alternator1Belt Amazon eBay $15.00
GM39601Sensor, coolant1Sensor eBay
GM42034Filter, oil1Oil filter Amazon eBay $41.00
GM42579Hose, fuel 3/8 in. 14.5 in.1Hose eBay
GM60238Gasket, Man Adapter Venturi1Gasket Amazon eBay
GM62309Element, air cleaner1Air filter Amazon eBay $91.00
GM65427Belt, alternator1Belt Amazon eBay $79.00
GM66205Oil filter1Oil filter Amazon eBay
GM66788Air filterAir filter Amazon eBay
GM67400Air filterAir filter Amazon eBay
GM69427Air filterAir filter Amazon eBay
GM69504O-ring1Seal eBay
GM72292Sensor, O21Sensor Amazon eBay
GM72302Sensor, T map 3-bar2Sensor Amazon eBay
GM72303Sender, oil pressure1Sender Amazon eBay
GM74361Silicone hose1Hose eBay
GM75023Seal, crankshaft pos. sensor1Seal Amazon eBay
GM75083Sensor, crishf posn1Sensor eBay
GM75088Seal, oil pan drn plug(o ring)1Seal eBay
GM75100Gasket, cyl hd1Gasket eBay
GM75133Hose, WP to Int Man1Hose eBay
GM75159Wires, Spark Plug1Spark plug eBay
GM75222Pump kit, wat, (incls plug, seal, cover, gasket)1Pump eBay
GM75237Pump kit, wat (incls plug, seal, cover, gasket)1Pump eBay
GM79585-SThermostat, Service Kit (includes gasket)1Thermostat Amazon eBay eBay
GM85014Gskt, head (5.7L Turbo) (80/100 kW)2Gasket eBay
GM85017Belt, Alt1Belt Amazon eBay $52.00
GM85020Hose, High Temp 1/2” ID (12 in.)1Hose eBay
GM85023Hose, Oil Supply Asm1Hose eBay
GM85026Hose 2.0” ID x 3.0” Silicone1Hose eBay
GM85027Hose Reducer 2.50/2.36 Sil1Hose eBay
GM85028O-ring, Dash 108 Buna-N1Seal eBay
GM85032Belt, Alt G-Rib .813” x 73.25”1Belt Amazon eBay
GM85033Gasket, Exhaust4Gasket eBay
GM85034Gasket Set, Exh Manifold2Gasket eBay
GM85041Turbocharger1Turbocharger eBay
GM85043Gasket, Exhaust Pipe1Gasket eBay
GM85046Gasket, Int Man 5.7 High Temp1Gasket eBay
GM90280Air Cleaner Assy1Air filter Amazon eBay
GM90281Element, Air Cleaner1Air filter Amazon eBay $40.00 NAPA $66.17 KuduParts $43.00
GM90538Camshaft Position Sensor1Sensor Amazon eBay $154.89
GM90680Air filterAir filter Amazon eBay
GM90681Air filterAir filter Amazon eBay
GM90682Air filterAir filter Amazon eBay
GM92138Air filterAir filter Amazon eBay
GM92140Air filterAir filter Amazon eBay
M125AAir filterAir filter Amazon eBay
M6923Air filterAir filter Amazon eBay
M933Air filterAir filter Amazon eBay
08020F1805Service part / kit Amazon eBay NAPA $152.42 KuduParts $340.00
GM16159Valve, PCV1Service part / kit Amazon eBay
GM29586Valve, throttle, 60 mm1Service part / kit Amazon eBay
GM69494EPR assembly (5.0 L)1Service part / kit eBay
GM69500Mixer1Service part / kit eBay
GM72585EPR assembly (5.0 L, dual fuel)1Service part / kit eBay
GM72586EPR assy (5.7L, 60, kW dual fuel)1Service part / kit eBay
GM75155Distributor HVS (includes item 10)1Service part / kit eBay
GM75164Coil, Ignition1Service part / kit eBay
GM75212EPR assembly (5.7 L, 60 kW)1Service part / kit eBay
GM85009EPR assembly (5.7 L, 80 kW)1Service part / kit eBay
GM85010EPR assembly (5.7 L, 100 kW)1Service part / kit eBay
GM85031Wires, Plug HVS 8MM Hi Temp1Service part / kit eBay
GM93491EPR assembly (60RCL)1Service part / kit eBay

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Standby25%9.92.62
Standby50%14.73.88
Standby75%19.45.12
Standby100%22.45.92

Available documents

Spec sheet — 60REZG (Kohler)Reference (Kohler)Reference — G6-39 0918AZ (Kohler)Reference — Katalog-promyshlennoj-produktsii (Kohler)Parts manual — tp6667 (Kohler)Parts manual — tp6731 (Kohler)Service manual — cold weather kit tt1723 (Kohler)Service manual — tp6712 (Kohler)Service manual — tp6799 (Kohler)Service manual — tt1723 (Kohler)

This page was generated from the 10 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Full service, cheapest listings

Priced items from this model's own parts manual.

Air filter 253107$55.23
Oil filter GM16703$3.59
Belt GM16132$86.00
Spark plug GM16531$5.38
4 priced items$150.20