Specifications
| Fuel | natural gas / LP |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 100 kW |
| Standby kVA | 125 |
| Emissions | EPA-Certified for Stationary Emergency Applications |
| Controller | APM402, Decision-Maker 3000, Decision-Maker 550, Decision-Maker 6000 |
| Oil capacity | 6.2 L |
| Alternator | PMG |
| Voltage options | 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 277/480 V, 347/600 V |
| Phase | 3 |
| Rated current | 347 A |
| Power factor | 0.8 |
| Battery cranking | 630 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 22.5 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 2800×1120×1456 mm |
| Dry weight | 1403 kg |
Engine
| Oil capacity | 6.2 L |
|---|---|
| Coolant capacity | 22.5 L |
| Displacement | 5.7 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the General Motors Industrial Powertrain Vortec 5.7 L| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Cartridge | ×1 | — | ||
| Oil | 6.2 L | — | 100 hr |
Service specifications
30| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | 10 in. weld flange bolt circle diameter B | 361.95 | mm (14.25 in.) | |
| Other | 10 in. weld flange outside diameter C | 406.4 | mm (16.0 in.) | |
| Other | 10 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 12 in. weld flange bolt circle diameter B | 431.80 | mm (17.00 in.) | |
| Other | 12 in. weld flange outside diameter C | 482.6 | mm (19.0 in.) | |
| Other | 12 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 14 in. weld flange bolt circle diameter B | 476.25 | mm (18.75 in.) | |
| Other | 14 in. weld flange outside diameter C | 533.4 | mm (21.0 in.) | |
| Other | 14 in. weld flange quantity of bolts / bolt hole diameter D | 12, 28.58 | mm (1.13 in.) | |
| Other | 16 in. weld flange bolt circle diameter B | 539.75 | mm (21.25 in.) | |
| Other | 16 in. weld flange outside diameter C | 596.9 | mm (23.5 in.) | |
| Other | 16 in. weld flange quantity of bolts / bolt hole diameter D | 16, 28.58 | mm (1.13 in.) | |
| Other | 18 in. weld flange bolt circle diameter B | 577.85 | mm (22.75 in.) | |
| Other | 18 in. weld flange outside diameter C | 635.0 | mm (25.0 in.) | |
| Other | 18 in. weld flange quantity of bolts / bolt hole diameter D | 16, 31.75 | mm (1.25 in.) | |
| Other | 20 in. weld flange bolt circle diameter B | 635.00 | mm (25.00 in.) | |
| Other | 20 in. weld flange outside diameter C | 698.5 | mm (27.5 in.) | |
| Other | 20 in. weld flange quantity of bolts / bolt hole diameter D | 20, 31.75 | mm (1.25 in.) | |
| Other | 5 in. weld flange bolt circle diameter B | 215.90 | mm (8.50 in.) | |
| Other | 5 in. weld flange outside diameter C | 241.30 | mm (9.50 in.) | |
| Other | 5 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 6 in. weld flange bolt circle diameter B | 254.0 | mm (10.0 in.) | |
| Other | 6 in. weld flange outside diameter C | 279.4 | mm (11.0 in.) | |
| Other | 6 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 8 in. weld flange bolt circle diameter B | 298.45 | mm (11.75 in.) | |
| Other | 8 in. weld flange outside diameter C | 342.9 | mm (13.5 in.) | |
| Other | 8 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | Weld flange angle A (10, 12, 14 in. nominal pipe size) | 30 | deg. | |
| Other | Weld flange angle A (16, 18, 20 in. nominal pipe size) | 22.5 | deg. | |
| Other | Weld flange angle A (5, 6, 8 in. nominal pipe size) | 45 | deg. |
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 size generator is the Kohler 100REZGD?
The Kohler 100REZGD is rated 100 kW standby (125.0 kVA).
What engine is in the Kohler 100REZGD?
The Kohler 100REZGD is powered by the General Motors Industrial Powertrain Vortec 5.7 L engine.
What kind of fuel does the Kohler 100REZGD run on?
The Kohler 100REZGD runs on natural gas / LP.
What's the oil capacity on a Kohler 100REZGD?
The General Motors Industrial Powertrain Vortec 5.7 L engine in the Kohler 100REZGD has an oil capacity of 6.2 liters.
What alternator comes on the Kohler 100REZGD?
The Kohler 100REZGD uses a PMG alternator.
Parts
74| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 359249 | Hose, 45 deg. elbow (3.00 in. ID) | 1 | Air filter | Amazon eBay |
| GM103656 | Hose, coolant SAE J20R2--DI 5/8 in. ID | 1 | Hose | eBay $23.00 |
| GM16132 | Belt, fan standard | 1 | Belt | Amazon eBay $86.00 |
| GM16133 | Gasket, intake manifold | 1 | Gasket | eBay |
| GM16140 | Cap, Bypass 5/8” (includes cap, connector, hose, clamps) | 1 | Hose | eBay |
| GM16180 | Alternator, 70 amp | 1 | Alternator | eBay |
| GM16199 | Gasket, manifold exhaust | 2 | Gasket | eBay |
| GM16202 | Gasket, intake manifold | 1 | Gasket | eBay |
| GM16348 | Gasket, valve rocker arm cover | 2 | Gasket | eBay |
| GM16353 | Gasket, cylinder head (60 kw) | 2 | Gasket | eBay |
| GM16360 | Gasket, distributor | 1 | Gasket | Amazon eBay |
| GM16362 | Gasket, oil pan | 1 | Gasket | eBay |
| GM16366 | Seal, crankshaft front oil | 1 | Seal | Amazon eBay |
| GM16385 | Seal, intake valve stem oil | 6 | Seal | Amazon eBay |
| GM16474 | Seal, crankshaft rear oil | 1 | Seal | eBay |
| GM16482 | Pump, oil, .742 dia. tube (incl. items 38--43) | 1 | Pump | Amazon eBay |
| GM16483 | Gasket, water pump cover | 1 | Gasket | Amazon eBay |
| GM16496 | Seal, exhaust valve stem oil | 6 | Seal | Amazon eBay |
| GM16536 | Gasket, thermostat cover | 2 | Gasket | Amazon eBay |
| GM16582 | Gasket, water pump (part of item 31) | 1 | Gasket | Amazon eBay |
| GM16703 | Filter, oil | 1 | Oil filter | Amazon $9.06 eBay $58.00 |
| GM22171 | Spark plug | 8 | Oil filter | Amazon eBay |
| GM38981 | Gasket, crankshaft rear oil seal housing | 1 | Gasket | eBay |
| GM39227 | Sensor, 1 bar TMAP | 1 | Sensor | eBay |
| GM39601 | Sensor, coolant | 1 | Sensor | eBay |
| GM42579 | Hose, fuel 3/8 in. 14.5 in. | 1 | Hose | eBay |
| GM60238 | Gasket, man. adapter Venturi | 1 | Gasket | Amazon eBay |
| GM69504 | O-ring | 1 | Seal | eBay |
| GM72292 | Sensor, O2 | 1 | Sensor | Amazon eBay |
| GM72303 | Sender, oil pressure | 1 | Sensor | Amazon eBay |
| GM75023 | Seal, crankshaft pos. sensor | 1 | Seal | Amazon eBay |
| GM75083 | Sensor, crishf posn | 1 | Sensor | eBay |
| GM75088 | Seal, oil pan drn plug(o ring) | 1 | Seal | eBay |
| GM75133 | Hose, WP to Int Man | 1 | Hose | eBay |
| GM75159 | Wires, Spark Plug | 1 | Spark plug | eBay |
| GM75237 | Pump kit, wat (incls plug, seal, cover, gasket) | 1 | Pump | eBay |
| GM79585-S | Thermostat, Service Kit (includes gasket) | 1 | Thermostat | Amazon eBay eBay |
| GM85017 | Belt, Alt | 1 | Belt | Amazon eBay $52.00 |
| GM88993-GR1 | Mount, Air Cleaner (6.76”ID) | 1 | Air filter | Amazon eBay |
| GM89979 | Air Filter, Oil, qts. 5.7L GM89979 | 1 | Air filter | eBay |
| GM90280 | Air Cleaner Assy | 1 | Air filter | Amazon eBay |
| GM90281 | Element, Air Cleaner | 1 | Air filter | Amazon $35.66 eBay KuduParts $43.00 |
| GM90538 | Camshaft Position Sensor (part of item 1) | 1 | Sensor | Amazon eBay $154.89 |
| GM90969-KP1-QS | 3" Concrete Mounting Pad (only comes in quantities of 5) | Physical | Amazon eBay | |
| GM90969-KP2-QS | 4" Concrete Mounting Pad (only comes in quantities of 5) | Physical | Amazon eBay | |
| GM92228-KP1-QS | 3" Concrete Mounting Pad (only comes in quantities of 5) | Physical | Amazon eBay | |
| GM92228-KP2-QS | 4" Concrete Mounting Pad (only comes in quantities of 5) | Physical | Amazon eBay | |
| X-312-47 | Hose (0.63 in. ID x 36 in.) | 1 | Hose | eBay |
| X-391-19 | Connector, 90 degrees (5/8 in. ID hose) | 1 | Hose | eBay $30.00 |
| X-582-1 | Connector, hose (5/8 in. x 1/2 in. MIP brass) | 1 | Hose | Amazon eBay |
| X-6014-137 | Hose, Wire Insert 3 in. ID | 1 | Hose | Amazon eBay |
| 100ERESD | KOHLER 100ERESD generator | Service part / kit | eBay | |
| 352945 | Block heater (kit GM78529-KP1-QS) | 1 | Service part / kit | eBay FridayParts $69.99 |
| 352946 | Block heater (kit GM78529-KP2) | 1 | Service part / kit | eBay |
| 60RCL | KOHLER 60RCL generator | Service part / kit | Amazon eBay | |
| GM101823 | 8.8L breather retrofit kit with oil cooler | 1 | Service part / kit | Amazon eBay |
| GM16159 | Valve, PCV | 1 | Service part / kit | Amazon eBay |
| GM17809 | Shield, heat (32 mm ID x 152 mm) | 1 | Service part / kit | eBay |
| GM23718 | Shield, heat (32 mm ID x 455 mm) | 1 | Service part / kit | eBay |
| GM29586 | Valve, throttle, 60 mm | 1 | Service part / kit | Amazon eBay |
| GM62348-SKP1-QS | Maintenance Kit | 1 | Service part / kit | Amazon eBay |
| GM69500 | Mixer | 1 | Service part / kit | eBay |
| GM71622-MA1 | X-612-14 | 1 | Service part / kit | Amazon eBay |
| GM75155 | Distributor HVS (includes item 10) | 1 | Service part / kit | eBay |
| GM75164 | Coil, Ignition | 1 | Service part / kit | eBay |
| GM83718-SKP1-QS | Maintenance Kit | 1 | Service part / kit | Amazon eBay |
| GM86771-SKP1-QS | Maintenance Kit | 1 | Service part / kit | Amazon eBay |
| GM87989 | updated distributor cap | Service part / kit | Amazon eBay | |
| GM87990 | rotor with the properly coated contact | Service part / kit | Amazon eBay | |
| GM89979-SKP1-QS | Maintenance Kit | 1 | Service part / kit | Amazon eBay |
| GM93396-SKP1-QS | Maintenance Kit | 1 | Service part / kit | Amazon eBay |
| GM93491 | EPR assembly (60RCL) | 1 | Service part / kit | eBay |
| M6923-08-80 | Nut, Hex 8MM | 2 | Service part / kit | Amazon eBay |
| M933-08016-60 | Screw | 2 | Service 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.
Available documents
Spec sheet — g4204 (Kohler)Reference (Kohler)Reference — G6-39 0918AZ (Kohler)Reference — Kohler-Gas Generators Brochure (Kohler)Reference — Reinstated Enclosures (Kohler)Service manual — cold weather kit tt1723 (Kohler)Service manual — tp6799 (Kohler)Service manual — tt1723 (Kohler)