Specifications
| Frequency | 60.0 Hz |
|---|---|
| Standby power | 351 kW |
| Standby kVA | 450 |
| Prime power | 317 kW |
| Controller | PowerCommand |
| Oil capacity | 38.6 L |
| Voltage options | 255/440 V, 230/400 V, 220/380 V, 127/220 V, 277/480 V |
| Phase | A (U), B (V), C (W) |
| Coolant capacity | 45.0 L |
| Max ambient | 54.7 °C |
| Dimensions (L×W×H) | 2055×990×1535 mm |
| Dry weight | 1410 kg |
Engine
| Coolant capacity | 58.0 L |
|---|---|
| Displacement | 14.0 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Common questions
What is the power rating of the Cummins/Onan NTA855?
The Cummins/Onan NTA855 is rated 351 kW standby (450.0 kVA).
What engine does the Cummins/Onan NTA855 use?
The Cummins/Onan NTA855 is powered by the Cummins/Onan NTA855-G5 engine.
Parts
73model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 122-0526 | Lube Filter (Former Style Used In Engine Manufacturing) | 1 | Oil filter | PartsGeek |
| 122-0755 | Lube & Bypass Filter (Latest Style Used In Engine Manufacturing) | 2 | Oil filter | PartsGeek |
| 130-3537 | Filter, Water - w/Corrosion Inhibiting Chemical DCA4 (Service) | 1 | Coolant filter | PartsGeek |
| 140-2391 | Element - Air Cleaner (Standard) | 1 | Air filter | PartsGeek |
| 140-2392 | Element, Air Cleaner - Primary | 1 | Air filter | PartsGeek |
| 140-2393 | Element, Air Cleaner - Safety | 1 | Air filter | PartsGeek |
| 151-0411 | Pickup, Magnetic | 1 | Sensor | PartsGeek kuduparts $208.00 |
| 155-2287-02 | Gasket, Flange (used with 155-2281 Elbow) | 1 | Gasket | PartsGeek |
| 193-0244 | Sender, Pressure - Oil | 1 | Sensor | PartsGeek |
| 193-0353 | Sender, Temperature - Oil | Sensor | PartsGeek | |
| 193-0375 | Sender, Water Temperature | 1 | Sensor | PartsGeek |
| 309-0179 | Switch, Thermostatic - High Water Temperature (PRE-ALARM) | 1 | Sensor | PartsGeek |
| 309-0269 | Air Cleaner (Includes Element) - Standard | 1 | Sensor | PartsGeek ironwing $32.86 |
| 309-0437 | Switch, Thermostatic - High Water Temperature (SHUTDOWN) | 1 | Sensor | PartsGeek |
| 333-0407 | Switch, Pressure - Oil, 14# PSI (SHUTDOWN) With Dual Terminals | 1 | Sensor | PartsGeek |
| 501-0551 | Line, Fuel - Flexible (Bypass line) | 1 | Hose | PartsGeek |
| 503-1467-07 | Hose, Rubber (3/4" ID x 33" LG) Radiator to Filter Housing | 1 | Hose | PartsGeek |
| 503-1679-02 | Hose, Rubber - Upper | 2 | Hose | PartsGeek |
| 505-1414-01 | Hose, Rubber - Lower | 2 | Hose | PartsGeek |
| 511-0160 | Belt, Drive - V (Fan) | Belt | PartsGeek | |
| 6108-03 | 6111-03 6139-03 4500 5347 5342 3021036 CE Air Cleaner Group Air Cleaner - Standard (Includes | Air filter | PartsGeek | |
| 0369-03 | 2 322-0359-02 1 322-0360-02 1 815-0385 2 870-0183 2 3 323-1310 1 323-1302 13 4 308-0785 | 1 | Service part / kit | PartsGeek |
| 0818-02 | EOOO-21002 NE Module, Overspeed - 24 VDC (Frequency Detection Module) 3 815-0544 4 Screw, Cap | Service part / kit | PartsGeek | |
| 130-3541 | Filter, Water - w/Corrosion Inhibiting Chemical DCA4 (Pre-Charging) | 1 | Service part / kit | PartsGeek |
| 130-3721 | 3 505-1414-01 2 503-0998 4 9 191-0781 1 191-0688 70D44854B13 MO 1 191-163.5 8RF3080F MO | 1 | Service part / kit | PartsGeek |
| 13756 | 732476 4 | Service part / kit | PartsGeek | |
| 140-2389 | 140-2391 1 140-2390 1 140-2392 1 140-2393 1 140-1548 1 140-1545 1 c 503-1575 186917 C | 1 | Service part / kit | PartsGeek |
| 155-1241 | CE 1 155-2409 1 155-2281 203432 CE 1 155-2287-02 3036377 CE 1 3 130-3537 3315116 CE | Service part / kit | PartsGeek | |
| 167619 | 3000214 3308636 156172 CE CE CE CE CE Decal - Caution | Service part / kit | PartsGeek | |
| 29876 | 1 53 732069 Voltage Code(s) or Model Ident Numbers S p e c i f i a t i o n Letter Designates Ma | 7 | Service part / kit | PartsGeek |
| 300-2810 | Board - Engine Monitor (All) (Includes Fuses) | 1 | Service part / kit | PartsGeek yemparts $317.11 |
| 301-6257 | 2 322-0223 1 3 308-0853 1 4 302-1723 2 5 517-0131 2 6 301-9055-01 1 7 NOTE 1 AR 8 332-08 | 1 | Service part / kit | PartsGeek |
| 301-8851 | Bracket. Mounting 3-13 ALARM RELAY MODULES Installation Of | 1 | Service part / kit | PartsGeek |
| 307-1987 | 307-1056 815-0388 323-0804 815-0544 319-0447 NOTE 1 NOTE 2 332-1673 NOTES | Service part / kit | PartsGeek | |
| 308-0784 | 6 193-0250 2 7 193-0352 1 8 193-0351 1 o 302-1642 1 10 151-0402 1 11 302-0885 1 815-0385 | 1 | Service part / kit | PartsGeek |
| 319-0754 | Plate, Mounting - Module 5 332-1445 10 | 1 | Service part / kit | PartsGeek |
| 321-0094 | Fuse, Cartridge - 5 Amp (F4, F5) 6 821-0004 4 Screw, Self-locking - Hex Washer Head ( | 2 | Service part / kit | PartsGeek |
| 323-1308 | 323-1302 12 18 98-5219 1 19 98-5220 1 Lamp, Incandescent - 1 | 1 | Service part / kit | PartsGeek |
| 3313279 | CE 2 122-0526 3304232 CE 1 11 12 13 14 15 | Service part / kit | Amazon eBay $25.00 PartsGeek | |
| 332-0147 | Terminal. Wire - Ring | 4 | Service part / kit | PartsGeek |
| 332-0807 | Terminal. Wire - Ring | 1 | Service part / kit | PartsGeek |
| 332-1445 | Tie..Cable 18 98-5219 1 Decal - Panel Front (Not I l l u s t r a t e d ) 19 98-5220 1 Decal | 3 | Service part / kit | PartsGeek |
| 332-1473 | Lug. Terminal - Solderless 10 800-0138 2 Screw. Cap - Hex Head (5 | 1 | Service part / kit | PartsGeek |
| 332-1673 | Terminal, Wire - Spade | 2 | Service part / kit | PartsGeek |
| 338-2278 | 1 | Service part / kit | PartsGeek | |
| 338-2493 | Harness. Wiring (A16 to A l l and AUX-P2.P3) 3-21 GENERATOR CONTROL PANEL COMPONENTS ADANGER D | 1 | Service part / kit | PartsGeek |
| 405-4112 | 821-0014 12 870-0257 12 17 405-4104 3 821-0014 12 18 405-4106 1 819-1102 3 19 405-4110 | 3 | Service part / kit | PartsGeek |
| 405-4117 | 816-0098 6 870-0257 6 10 405-4116 1 816-0098 6 870-0257 6 11 405-4118-01 1 12 405-4118-0 | 1 | Service part / kit | PartsGeek |
| 406-0565 | AR 2 815-0607 28 3 870-0235 28 4 406-0626 7 5 405-3980 2 815-0236 4 821-0016 4 6 405-41 | Service part / kit | PartsGeek | |
| 416-0850 | Bracket. Angle - Battery Holddown 6 800-0026 1 Screw. Cap - Hex Head (5 | 2 | Service part / kit | PartsGeek |
| 416-0854 | Bracket. Holddown - Battery 3 416-0853 1 J-Bolt - Battery Holddown 4 800-0048 2 Screw. Cap - H | 1 | Service part / kit | PartsGeek |
| 511-0084 | Belt, Drive - 35 AMP Alternator | 1 | Service part / kit | PartsGeek |
| 517-0131 | 9 355-0093 1 10 302-1148 1 302-1753 1 11 REF 12 302-1720 1 13 303-0032 1 14 301-9054-0 | 1 | Service part / kit | PartsGeek |
| 517-0137 | 302- 1723 517-0131 193-0250 193-0330 301-9055-01 NOTE 1 332-0807 NOTE 1 332-0147 332-1445 | Service part / kit | PartsGeek | |
| 526-0018 | Washer, Flat (1 | 2 | Service part / kit | PartsGeek FridayParts $1002.50 |
| 526-0198 | Washer, Lock - Spring (5 | 2 | Service part / kit | PartsGeek |
| 812-0063 | 853-0003 300-2856 338-1836 812-0063 853-0003 300-2863 338-1835 332-1445 NOTE 1 NOTE 2 332 | Service part / kit | PartsGeek | |
| 812-0084 | Screw, Machine - Round Head ( | 4 | Service part / kit | PartsGeek |
| 815-0544 | Screw. Machine - Round Head With IT Lock Washer ( | 4 | Service part / kit | PartsGeek |
| 816-0098 | 870-0257 16 7 405-4113 1 816-0098 10 870-0257 10 8 405-4114 1 816-0098 14 870-0257 14 | 16 | Service part / kit | PartsGeek |
| 821-0014 | Screw, Self-Locking - Hex Washer Head (5 | 1 | Service part / kit | PartsGeek |
| 821-0018 | Screw, Self-Locking - Hex Washer Head (1 | 1 | Service part / kit | PartsGeek |
| 821-0029 | Screw, Self–Locking – Hex Washer Head (3/8–16 x 3/4") | 4 | Service part / kit | PartsGeek |
| 850-0070 | Washer, Lock - Spring (5 | 2 | Service part / kit | PartsGeek |
| 856-0006 | Washer, Lock - EIT (1 | 1 | Service part / kit | PartsGeek |
| 856-0026 | Washer. Lock - EIT (5 | 1 | Service part / kit | PartsGeek |
| 860-0007 | Nut. Hex (5 | 2 | Service part / kit | PartsGeek |
| 870-0183 | 12 332-0052 1 870-0131 2 13 322-0017 1 14 322-0361 1 15 301-9055-02 1 16 338-2277 1 17 | 2 | Service part / kit | PartsGeek |
| 870-0212 | Nut. Self-Locking - Hex (1 | 1 | Service part / kit | PartsGeek |
| 870-0257 | Nut. Self-locking - Hex Washer Head (5 | 1 | Service part / kit | PartsGeek |
| 9054-03 | 821-0004 3 15 98-5387 2 16 98-5724 2 17 332-0052 1 870-0131 1 18 308-0882 1 19 REF 2 | 1 | Service part / kit | PartsGeek |
| 9055-01 | Panel. Control 7 NOTE 2 AR Wire. Electrical - 16 AWG. Insulated 8 332-1993 2 Terminal. Faston. | 1 | Service part / kit | PartsGeek FridayParts $40.77 |
| 960-0238 | 2-90 Replaces 11-89 P r i n t e d In U.S.A. TABLE OF CONTENTS MODEL IDENTIFICATION TABLE n IN | Service part / kit | PartsGeek |
Compiled from this model's family documentation — may include parts for closely-related variants. 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 |
|---|---|---|---|
| Base | 100% | 65.0 | 16.9 |
| Prime | |||
| Prime | 100% | ||
| Standby | |||
| Standby | 100% | 84.0 | 21.8 |
Available documents
Engine spec — 0057370 (Cummins/Onan)Engine spec — fr1916 (Cummins/Onan)Spec sheet — NTA855-G4 (Cummins/Onan)Spec sheet — S-6411-EN (Cummins/Onan)Spec sheet — fr1400 (Cummins/Onan)Parts manual — 0960-0239 I1 201712 (Cummins/Onan)Parts manual — 960-0238 Onan DFCB NTA2 Parts Manual (2-1990) (Cummins/Onan)