Service parts for the 100RZGD
Grouped by system, with how many of each the parts manual calls for.
Fuel system
1 requiredOil system
1 requiredBelts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Natural Gas/LP Gas |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 98 kW |
| Standby kVA | 123 |
| Controller | APM402, Decision-Maker 550, Decision-Maker 6000 |
| Oil capacity | 6.2 L |
| Alternator | 4R9X |
| 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 | 147 A |
| Power factor | 0.8 |
| Battery cranking | 630 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 22.5 L |
| Engine jacket water | 6.8 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 2800×1120×1380 mm |
Engine
| Oil capacity | 6.2 L |
|---|---|
| Coolant capacity | 22.5 L |
| Displacement | 5.7 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Same engine, other brands
1 brandThe General Motors Industrial Powertrain Vortec 5.7 L in this set also powers 1 generator set sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| SDMO | G60 |
Maintenance & consumables
for the General Motors Industrial Powertrain Vortec 5.7 L| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | Fuel System | 38050441 | eBay | ||
| Oil filter | Filter, oil | GM42034 | Amazon eBay $41.00 | ||
| Belt | Belt, Alt G-Rib .813” x 73.25” | GM85032 | Amazon eBay | ||
| 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
How many kW is the Kohler 100RZGD?
The Kohler 100RZGD is rated 98 kW standby (123.0 kVA).
What engine does the Kohler 100RZGD use?
The Kohler 100RZGD is powered by the General Motors Industrial Powertrain Vortec 5.7 L engine.
What kind of fuel does the Kohler 100RZGD run on?
The Kohler 100RZGD runs on Natural Gas/LP Gas.
What is the oil capacity of the Kohler 100RZGD?
The General Motors Industrial Powertrain Vortec 5.7 L engine in the Kohler 100RZGD has an oil capacity of 6.2 liters.
How much coolant does the Kohler 100RZGD hold?
The Kohler 100RZGD cooling system holds 22.5 liters (5.9 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What voltages is the Kohler 100RZGD available in?
The Kohler 100RZGD is offered in 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 277/480 V, 3-phase.
What size battery does the Kohler 100RZGD need?
The Kohler 100RZGD uses 1 battery, 12 V each, 630 CCA, per the manufacturer specification sheet.
What alternator comes on the Kohler 100RZGD?
The Kohler 100RZGD uses a 4R9X alternator.
What oil filter does the Kohler 100RZGD use?
The Kohler 100RZGD uses oil filter part number GM42034.
What fuel filter fits the Kohler 100RZGD?
The Kohler 100RZGD uses fuel filter part number 38050441.
Parts
107| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 359249 | Hose, 45 deg. elbow (3.00 in. ID) | 1 | Air filter | Amazon eBay |
| 38050057 | Bolt, 1/4-20 x 2 Hx Hd Grade 5 | 1 | Oil filter | eBay |
| 38050060 | Oil Filter | 1 | Oil filter | eBay |
| 38050308 | Alternator | 1 | Alternator | eBay |
| 38050356 | Lifting Eye, Idler, Belt | 1 | Belt | eBay |
| 38050441 | Fuel System | 1 | Fuel filter | eBay |
| 38050445 | Fuel System, EPR/Mixer | 1 | Fuel filter | eBay |
| 38050449 | Fuel System, Throttle Body | 1 | Fuel filter | eBay |
| 38050634 | Thermostat | 1 | Thermostat | eBay |
| 38900649 | Water Pump Hardware | 1 | Pump | 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 |
| GM16158 | Hose, PCV, 3/8” (37 in.) | 1 | Hose | Amazon 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) | 1 | Pump | Amazon eBay |
| GM16483 | Gasket, water pump cover | 1 | Gasket | Amazon eBay |
| GM16496 | Seal, exh vlv stem Oil | 6 | Seal | Amazon eBay |
| GM16536 | Gasket, thermostat cover | 1 | Gasket | Amazon eBay |
| GM16582 | Gasket, water pump | 1 | Gasket | Amazon eBay |
| GM16703 | Filter, oil | 1 | Oil filter | Amazon $9.06 eBay $58.00 |
| GM22171 | Spark plug | 8 | Spark plug | 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 |
| GM42034 | Filter, oil | 1 | Oil filter | Amazon eBay $41.00 |
| 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 |
| GM72302 | Sensor, T map 3-bar | 2 | Sensor | Amazon eBay |
| GM72303 | Sender, oil pressure | 1 | Sender | 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 |
| GM85014 | Gskt, head (5.7L Turbo) (80/100 kW) | 2 | Gasket | eBay |
| GM85017 | Belt, Alt | 1 | Belt | Amazon eBay $52.00 |
| GM85020 | Hose, High Temp 1/2” ID (12 in.) | 1 | Hose | eBay |
| GM85023 | Hose, Oil Supply Asm | 1 | Hose | eBay |
| GM85027 | Hose Reducer 2.50/2.36 Sil | 1 | Hose | eBay |
| GM85028 | O-ring, Dash 108 Buna-N | 1 | Seal | eBay |
| GM85032 | Belt, Alt G-Rib .813” x 73.25” | 1 | Belt | Amazon eBay |
| GM85033 | Gasket, Exhaust | 4 | Gasket | eBay |
| GM85034 | Gasket Set, Exh Manifold | 2 | Gasket | eBay |
| GM85041 | Turbocharger | 1 | Turbocharger | eBay |
| GM85043 | Gasket, Exhaust Pipe | 1 | Gasket | eBay |
| GM85046 | Gasket, Int Man 5.7 High Temp | 1 | Gasket | eBay |
| GM88993-GR1 | Mount, Air Cleaner (6.76”ID) | 1 | Air filter | Amazon 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 | 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 | 1 | Hose | Amazon eBay $22.00 |
| X-6014-137 | Hose, Radiator Wire Insert, 3 in. ID | 1 | Hose | Amazon 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 |
| 38030121 | Flywheel Adapter | 1 | Service part / kit | eBay |
| 38030247 | Flywheel/Housing | 1 | Service part / kit | eBay |
| 38040622 | Fan Spacer | 1 | Service part / kit | eBay |
| 38050322 | Bolt, starter | 1 | Service part / kit | eBay |
| 38050325 | Electrical | 1 | Service part / kit | eBay |
| 38050326 | High Voltage Switch (HVS) Coil & Distributor | 1 | Service part / kit | eBay |
| 38050327 | Ignition System | 1 | Service part / kit | eBay |
| 38050801 | Exhaust Manifold | 1 | Service part / kit | eBay |
| 38050809 | Exhaust Pipe | 1 | Service part / kit | eBay |
| 38050812 | Intake Manifold | 1 | Service part / kit | 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 |
| GM85010 | EPR assembly (5.7 L, 100 kW) | 1 | Service part / kit | eBay |
| GM85031 | Wires, Plug HVS 8MM Hi Temp | 1 | Service part / kit | 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 | Maintenance Service Kit | 1 | Service part / kit | 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 | 1 | Service part / kit | Amazon eBay eBay $8.80 |
| 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 — g4206 (Kohler)Reference (Kohler)Reference — G6-39 0918AZ (Kohler)Parts manual — tp6731 (Kohler)Service manual — cold weather kit tt1723 (Kohler)Service manual — tp6799 (Kohler)Service manual — tt1723 (Kohler)
This page was generated from the 7 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.