Facts About Generators
GeneratorsDirectoryEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Generac›Generac Impact-36G

Generac Impact-36G Generator Set

The Generac Impact-36G is a 3.6 kW (3.6 kVA) gasoline standby generator set powered by a Generac GN-220 engine. It is available at 120 V, 1-phase, 60 Hz and rated 30 A. It holds about 0.95 L (0.3 gal) of oil. Starting uses 1 battery rated 400 CCA at 12 V. The same GN-220 engine also powers generator sets from Magnum.

3 kW
Standby
0.216 L
Displacement
0.95 L
Oil capacity
2
Document types

How to read your Generac serial & model number →

Specifications

Fuelgasoline
Frequency60.0 Hz
Standby power3 kW
Standby kVA3
Prime power3 kW
Oil capacity0.95 L
Voltage options120 V
Phase1
Rated current30 A
Power factor1.0
Circuit breaker30 A
Battery cranking400 CCA
Battery voltage12 V
Battery quantity1

Engine

Generac GN-220
Oil capacity710.0 L
Displacement0.216 L
Aspiration4-stroke
Rated speed2850 rpm

Maintenance & consumables

for the Generac GN-220
ItemSpecCapacityPart #Interval
Air filter7860125 hr Amazon eBay $10.67 PartsGeek
Fuel filter86311100 hr Amazon eBay $28.68 PartsGeek
Oil filter7018550 hr Amazon eBay $10.49 PartsGeek
Oil24.0 oz5W-3025 hr PartsGeek

Common questions

What is the power rating of the Generac Impact-36G?

The Generac Impact-36G is rated 3 kW standby (3.6 kVA).

What engine does the Generac Impact-36G use?

The Generac Impact-36G is powered by the Generac GN-220 engine.

What fuel does the Generac Impact-36G use?

The Generac Impact-36G runs on gasoline.

What is the oil capacity of the Generac Impact-36G?

The Generac GN-220 engine in the Generac Impact-36G has an oil capacity of 710.0 liters.

Troubleshooting

4

Symptoms & remedies

SymptomCauseRemedy
Engine starts hard, runs rough, low full load power.1. Air cleaner plugged or damaged 2. Defective spark plug. 3. Loose spark plug boot.1. Clean or replace as needed. 2. Clean, regap or replace plug. 3. Press boot on securely.
Engine starts, shuts down when Start/Stop switch is released.1. Engine oil is low. 2. Engine is overheated. 3. Defective Low Oil Pressure System 4. Defective Engine Control Board 5. Defective Computer Control Board1. Check oil; add as needed. 2. Check adequate ventilation. 3. Have serviced/replaced. 4. Have board serviced/replaced. 5. Have board serviced/replaced.
Start/Stop switch at Stop, engine continues to run.1. Defective Start/Stop switch 2. Open/disconnected wire #18 between Start/Stop switch and Engine Control Bd. 3. Open/disconnected wire #0 between Start/Stop switch & Engine Control Bd. 4. Defective Engine Control Board1. Replace switch. 2. Reconnect or close wire. 3. Reconnect or close wire. 4. Replace board.
No AC output from generator.1. Check circuit breaker. 2. Check vehicle circuit breaker & fuses. 3. Transfer sw. set to NORMAL position. 4. Generator internal failure1. Reset to ON or CLOSED. 2. Reset and replace if necessary. 3. Set to GENERATOR position. 4. Take generator to an Authorized Generac facility.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

56
Part #DescriptionQtySystem
00264Engine Oil1Oil PartsGeek
00272Clock button1Clock PartsGeek
00273Timer button1Timer PartsGeek
00280Detail A1Detail PartsGeek
21704GASKET, CYLINDER HEAD1Gasket PartsGeek
303401/4" FUEL LINE 4" LONG2Hose PartsGeek
34043Filter, air - solar1Air filter PartsGeek
34174Gasket, exhaust1Gasket PartsGeek
47290HOSE-3/8 I.D. x 11- 1/2" LONG1Hose PartsGeek
70185FILTER, OIL1Oil filter Amazon eBay $10.49 PartsGeek
72347SPARKPLUG, CHAMPION RC12YC1Spark plug Amazon eBay $19.45 PartsGeek
77667SWITCH, OIL PRESSURE1Sensor PartsGeek
78601ELEMENT, AIR FILTER1Air filter Amazon eBay $10.67 PartsGeek
78629GASKET, BREATHER2Gasket PartsGeek FridayParts $22.76
78631GASKET, CARBURETOR/SKIRT1Gasket PartsGeek
81695SEAL, OILCRANKSHAFT2Seal PartsGeek
8258003/16"CARBURETOR LINE (4" LONG)1Hose PartsGeek
82580C3/16"CARBURETOR LINE1Hose PartsGeek
82580D3/16" CARBURETOR LINE (4" LONG)1Hose PartsGeek
83152GEROTOR, INNER1Pump PartsGeek
83153GEROTOR, OUTER1Pump PartsGeek
86311FUEL FILTER1Fuel filter Amazon eBay $28.68 PartsGeek
86697ASSY. IGNITION SENSOR1Sensor PartsGeek kuduparts $32.00
86707GASKET, CARB/INLET ADAPTOR1Gasket PartsGeek
86710HOSE, CARBURETOR INLET1Hose PartsGeek
86718SEAL RUBBER EXTRUSION3.5Seal PartsGeek
87478GASKET, OIL FILTER ADAPTOR1Gasket PartsGeek
88156SEAL VALVE-INTAKE1Seal PartsGeek
89045SEAL, WASHER EXHAUST PIPE1Seal PartsGeek
89048SEAL, OIL FILTER HOLE1Seal PartsGeek
89062HOSE, BREATHER1Hose PartsGeek
89096GASKET, CRANK CASE FLANGE1Gasket PartsGeek
89476GASKET, EXHAUST1Gasket PartsGeek FridayParts $272.43
90051GASKET, SPACER/HEAD2Gasket PartsGeek
90071O-RING, 1.062" I.D.1Seal PartsGeek
90072O-RING .562" I.D.1Seal PartsGeek
90475PUMP, FUEL1Pump eBay $25.93 PartsGeek
90536GASKET, AIR CLEANER OUTLET1Gasket PartsGeek
94090SWITCH-THERMAL, OIL TEMP.1Sensor PartsGeek
94643GASKET, OIL DRAIN PLUG1Gasket PartsGeek
96362GASKET, ROCKER COVER1Gasket PartsGeek
96459GASKET, CARB/INLET/ADAPTOR1Gasket PartsGeek
A8822GASKET, CYLINDER HEAD1Gasket PartsGeek
00243Grease1Service part / kit PartsGeek
00271Timer Control module1Service part / kit PartsGeek
00283Solar Panel Connections1Service part / kit PartsGeek
00284Service Pin, Actuator Lockout Bracket1Service part / kit PartsGeek
00285Battery Covers1Service part / kit PartsGeek
0028660A Fuse, Left Battery Bank, Right Battery Bank, Charge Controller, LED Driver, 24V Terminal, Ground Terminal1Service part / kit PartsGeek
00287Engine Oil Dipstick, Engine Compartment1Service part / kit PartsGeek
00288Feeler Gauge, Allen Wrench1Service part / kit PartsGeek
22676FUSE, 15A. AGC1Service part / kit PartsGeek
32150Regulator, vaporizer - LPG1Service part / kit PartsGeek
32151Regulator, direct-operated1Service part / kit PartsGeek dieselpartscenter $1.22
34108Regulator, low pressure1Service part / kit PartsGeek
34359Muffler, solar - EES1Service 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
Prime0.13
Prime50%0.2
Prime100%0.4
Standby0.490.13
Standby50%0.760.2
Standby100%1.510.4

Available documents

Owner's manual — A9398 (Generac)Owner's manual — A9398 (Generac)Parts manual — Chart3 (Generac)

Other sets with this engine

Generac Impact-34 plusGenerac Impact-36 plusGenerac NP-30GGenerac QUIETPACT 40 G