Service parts for the T70C
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
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 |
| Standby power | 80 kW |
| Standby kVA | 100 |
| Prime power | 55 kW |
| Controller | Murphy Cascade |
| Oil capacity | 9.0 L |
| Alternator | Stamford/AvK UCI224FIL73D |
| Voltage options | 208 V, 220 V, 240 V, 440 V, 480 V |
| Phase | 3 phase,1 phase |
| Rated current | 225 A |
| Circuit breaker | 225 A |
| Coolant capacity | 9.0 L |
| Max ambient | 41 °C |
| Dimensions (L×W×H) | 2790×1190×1620 mm |
| Dry weight | 2445 kg |
| Fuel tank | 606.0 L |
| Tank runtime | 28 hr |
Engine
| Coolant capacity | 9.0 L |
|---|---|
| Displacement | 4.5 L |
| Aspiration | turbocharged and charge air cooled |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Cummins/Onan QSB5-G1 NR3| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter - Primary | 125561 | Amazon eBay | ||
| Fuel filter | Fuel Filter | 125551 | Amazon eBay | ||
| Oil filter | Oil Filter | 125550 | Amazon eBay |
Common questions
What size generator is the Terex T70C?
The Terex T70C is rated 80 kW standby (100.0 kVA).
What engine is in the Terex T70C?
The Terex T70C is powered by the Cummins/Onan QSB5-G1 NR3 engine.
What fuel does the Terex T70C use?
The Terex T70C runs on diesel.
How much coolant does the Terex T70C hold?
The Terex T70C cooling system holds 9 liters (2.4 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
How much oil does the Terex T70C take?
The Terex T70C has an engine oil capacity of 9 liters (9.5 US quarts), per the manufacturer specification sheet.
What is the prime power rating of the Terex T70C?
The Terex T70C is rated 55 kW prime (69 kVA), against 80 kW standby.
How much does the Terex T70C weigh?
The Terex T70C has a dry weight of 2445 kg (5390 lb).
How big is the fuel tank on the Terex T70C?
The Terex T70C has a 606 liter (160 US gallon) fuel tank, giving about 28 hours of runtime.
What voltage does the Terex T70C produce?
The Terex T70C is offered in 208 V, 220 V, 240 V, 440 V, 480 V, 3 phase,1 phase-phase.
What alternator does the Terex T70C use?
The Terex T70C uses a Stamford/AvK UCI224FIL73D alternator.
What oil filter does the Terex T70C use?
The Terex T70C uses oil filter part number 125550.
What fuel filter fits the Terex T70C?
The Terex T70C uses fuel filter part number 125551.
What air filter fits the Terex T70C?
The Terex T70C uses air filter part number 125561.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| No generator output voltage | Circuit breaker tripped | Reset circuit breaker |
| No generator output voltage | Voltage regulator | Check voltage regulator wiring |
| No generator output voltage | Defective voltage regulator | Replace voltage regulator |
| No generator output voltage | Defective Selector Switch | By pass by hardwiring generator |
| No generator output voltage | Defective generator | Refer to generator manual |
| Low generator output voltage | Voltage adjustment set too low | Adjust voltage potentiometer |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Terex T70C troubleshooting guide (67 entries) →
Parts
6| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 125550 | Oil Filter | Oil filter | Amazon eBay | |
| 125551 | Fuel Filter | Fuel filter | Amazon eBay | |
| 125552 | Belt | Belt | Amazon eBay FridayParts $77.87 | |
| 125561 | Air Filter - Primary | Air filter | Amazon eBay | |
| 125562 | Air Filter - Secondary | Air filter | Amazon eBay | |
| 134277 | T70, T90 & T120 Super Quiet Generator Maintenance Schedule | Service part / kit | Amazon eBay $34.00 |
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 | 4.4 | 16.6 | |
| Prime | 50% | 3.4 | 13.0 |
| Prime | 75% | 5.0 | 19.0 |
| Standby | 5.6 | 21.0 | |
| Standby | 100% | 6.0 | 23.0 |
Available documents
This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.