Service parts for the QAS 108
Grouped by system, with how many of each the parts manual calls for.
Oil system
1 requiredBelts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | diesel |
|---|---|
| Frequency | 60.0 Hz |
| Voltage options | 120/240 V, 120/208 V, 240 V, 480 V |
| Phase | 1 |
| Power factor | cos phi 0.85 |
| Battery group | 12V |
| Battery voltage | 12V V |
| Battery quantity | 8 |
| Dry weight | 1200 kg |
Filters for the John Deere 6068TF250
6Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P550779 | Lube Filter, Spin-On Full Flow | JOHN DEERE RE504836, JOHN DEERE RE50486, NAPA 7750S, SKYJACK 13502869 | KuduParts $19.00 |
| Oil filter | P551352 | Lube Filter, Spin-On Full Flow | JOHN DEERE DZ118286, JOHN DEERE PMLF3703, NAPA 401062, BALDWIN B40168 | buy |
| Fuel filter | P550090 | Fuel Filter, In-Line | JOHN DEERE AE20952, JOHN DEERE AT101565, ASV INCORPORATED 0201914, LOESING 025125 | FridayParts $45.66 |
| Fuel filter | P551130 | Fuel Filter, Box | JOHN DEERE AR50041, JOHN DEERE R16951, NAPA 3370, BALDWIN BF909 | KuduParts $37.00 |
| Fuel / water separator | P551424 | Fuel Filter, Water Separator Spin-On | JOHN DEERE RE503198, JOHN DEERE RE522868, NAPA 3532, NAPA 600094 | KuduParts $16.00 FridayParts $18.50 |
| Fuel / water separator | P551422 | Fuel Filter, Water Separator Cartridge | JOHN DEERE AT274723, JOHN DEERE RE22878, NAPA 3978, CLAAS 0011318200 | KuduParts $22.00 FridayParts $24.50 |
Same engine, other brands
3 brandsThe John Deere 6068TF250 in this set also powers 4 generator sets sold under 3 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| MQ Power | DCA-125SSJU, DCA-125SSJU2 |
| John Deere | 6068TF250 |
| Kohler | 100REOZJ |
Maintenance & consumables
for the John Deere 6068TF250| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 2000 hr | |||
| Fuel filter | — | 500 hr | |||
| Oil filter | last changed 7-26-23 | GM32809 | Amazon Amazon Amazon Amazon eBay $26.25 NAPA $28.76 | ||
| Battery | — | ||||
| Belt | Belt | 556677 | Amazon eBay | ||
| Coolant | -35F | — | |||
| Coolant filter | — | ||||
| Oil | — | 500 hr | |||
| Spark plug | — | 500 hr |
Common questions
What engine is in the Atlas Copco QAS 108?
The Atlas Copco QAS 108 is powered by the John Deere 6068TF250 engine.
What kind of fuel does the Atlas Copco QAS 108 run on?
The Atlas Copco QAS 108 runs on diesel.
What is the dry weight of the Atlas Copco QAS 108?
The Atlas Copco QAS 108 has a dry weight of 1200 kg (2645 lb).
What voltages is the Atlas Copco QAS 108 available in?
The Atlas Copco QAS 108 is offered in 120/240 V, 120/208 V, 240 V, 480 V, 1-phase.
How many cold cranking amps does the Atlas Copco QAS 108 require?
The Atlas Copco QAS 108 uses 8 batteryies, 12V V each, group 12V, per the manufacturer specification sheet.
What oil filter does the Atlas Copco QAS 108 use?
The Atlas Copco QAS 108 uses oil filter part number GM32809.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Alternator does not excite | Blown fuse | Replace fuse |
| Alternator does not excite | Insufficient voltage | Increase speed by 15% |
| Alternator does not excite | No residual voltage | For an instant apply on the + and – terminals of the electronic regulator a 12 V battery voltage with a 30 ? resistor in series respecting the polarities |
| After being excited, alternator does not excite | Connections are interrupted | Check connection cables per drawings |
| Low voltage at no load | Voltage potentiometer out of setting | Reset voltage |
| Low voltage at no load | Intervention of protection | Check RPM |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Atlas Copco QAS 108 troubleshooting guide (189 entries) →
Parts
10| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 112233 | Spark Plug | 1 | Spark plug | Amazon eBay |
| 223344 | Oil Pump | 1 | Pump | Amazon eBay |
| 223673 | Filter, oil | 1 | Oil filter | Amazon eBay $26.99 NAPA $35.41 KuduParts $14.00 |
| 334455 | Fuel Pump | 1 | Pump | Amazon eBay |
| 445566 | Coolant Pump | 1 | Pump | Amazon eBay |
| 556677 | Belt | 1 | Belt | Amazon eBay |
| 667788 | Seal | 1 | Seal | Amazon eBay |
| 778899 | Gasket | 1 | Gasket | Amazon eBay |
| 889900 | Thermostat | 1 | Thermostat | Amazon eBay |
| 990011 | Impeller | 1 | Impeller | 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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| No/full load | 6.8 | 7.9 | |
| Prime | 6.8 | 1.8 | |
| Standby | 1.0 | 0.26 |
Available documents
This page was generated from the 5 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.