Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 40 kW |
| Controller | Solid-state engine circuit board |
| Oil capacity | 4.25 L |
| Alternator | Generac N/A |
| Voltage options | 120/240 V |
| Phase | single-phase |
| Rated current | 167 A |
| Circuit breaker | 200 A |
| Battery group | 27F |
| Battery cranking | 600 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
Maintenance & consumables
for the Generac 4.3L| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | SAE 15W-40 oil having API Service Class SG, SH or SJ | — | 500 hr | find | |
| Fuel filter | N/A | — | 100 hr | find | |
| Oil filter | SAE 15W-40 oil having API Service Class SG, SH or SJ | — | 9 hr | find | |
| Belt | SAE 15W-40 oil having API Service Class SG, SH or SJ | — | 3 hr | find | |
| Oil | SAE 15W-40 oil having API Service Class SG, SH or SJ | 4.5 quarts | 0A37970001 | 9 hr | Amazon eBay $16.00 PartsGeek |
Common questions
What is the power rating of the Generac Guardian Liquid-cooled 40 kW Generator?
The Generac Guardian Liquid-cooled 40 kW Generator is rated 40 kW standby.
What engine does the Generac Guardian Liquid-cooled 40 kW Generator use?
The Generac Guardian Liquid-cooled 40 kW Generator is powered by the Generac 4.3L engine.
What fuel does the Generac Guardian Liquid-cooled 40 kW Generator use?
The Generac Guardian Liquid-cooled 40 kW Generator runs on Diesel.
What alternator does the Generac Guardian Liquid-cooled 40 kW Generator use?
The Generac Guardian Liquid-cooled 40 kW Generator uses a Generac N/A alternator.
Troubleshooting
4Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| The engine will not crank. | 1. Fuse blown 2. Loose, corroded or defective battery cables 3. Defective starter contactor 4. Defective starter motor 5. Dead Battery | 1. Replace fuse. 2. Tighten, clean or replace battery cables as necessary. 3. Replace defective starter contactor. 4. Replace defective starter motor. 5. Charge or replace battery. |
| The engine cranks but will not start. | 1. Out of fuel 2. Defective fuel solenoid (FS) 3. Open #14 wire from engine control board 4. Defective spark plug(s) 5. Dirty/Blocked air filter | 1. Replenish fuel. 2. * 3. * 4. Clean, re-gap or replace plug(s). 5. Clean or replace as required. |
| The engine starts hard and runs rough. | 1. Air cleaner plugged or damaged 2. Defective spark plug(s) 3. Dirty/Blocked air filter | 1. Check, clean or replace air cleaner. 2. Clean, re-gap or replace plug(s). 3. Clean or replace as required. |
| The engine starts, but then shuts down. | 1. Engine oil level low 2. Defective low oil pressure switch 3. Defective high temperature switch 4. Defective control board 5. Low coolant | 1. Check oil and add oil as needed. 2. * 3. * 4. * 5. * |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
6| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 057522 | SENSOR COOLANT LEVEL | 1 | Sensor | PartsGeek |
| 058665 | F vented type battery | 1 | Battery | Amazon eBay PartsGeek |
| 0A37970001 | FILTER OIL | 1 | Oil filter | Amazon eBay $16.00 PartsGeek |
| 0A4637 | Air Cleaner | 1 | Air filter | Amazon eBay $49.95 PartsGeek |
| 0A3852 | CASTING ADAPTOR | 1 | Service part / kit | PartsGeek |
| 0D2244M | ASSY MAGPICKUP (3/8-24 MALE) | 1 | Service part / kit | PartsGeek FridayParts $18.08 |
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
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | |||
| Standby |
Available documents
Owner's manual — 75a90f54-b678-485e-ab84-88864a6f11ff (Generac)Owner's manual — D4963 (Generac)Owner's manual — D8908 (Generac)