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Caterpillar XQ350 Generator Set

The Caterpillar XQ350 is a 350 kW (350 kVA) Diesel standby generator set powered by a Caterpillar 3406B engine. It is available at 208 V, 240 V, 440 V and 480 V, three phase-phase and 50 Hz. It holds about 40 L (10.6 gal) of oil and 87 L (23.0 gal) of coolant, with a maximum ambient rating of 61 °C. The set measures 7925×2438×3734 mm (312.0×96.0×147.0 in), weighs about 14877 kg (32798 lb) and produces 74 dBA at 1 m. An integrated tank holds 1514 L (400.0 gal), roughly 27 hours of runtime.

350 kW
Standby
14.6 L
Displacement
40.0 L
Oil capacity
1
Document types

How to read your Caterpillar serial & model number →

Specifications

FuelDiesel
Frequency50.0 Hz
Standby power350 kW
Prime power280 kW
Oil capacity40.0 L
Voltage options208 V, 240 V, 440 V, 480 V
Phasethree phase
Coolant capacity87 L
Max ambient[61, 58.2] °C
Dimensions (L×W×H)7925×2438×3734 mm
Dry weight14877 kg
Sound level74.0 dBA @ 1 m
Fuel tank1514.0 L
Tank runtime27 hr

Engine

Caterpillar 3406B
Oil capacity34.1 L
Coolant capacity104.1 L
Displacement14.6 L
AspirationTurbocharged & Turbocharged-Aftercooled
Rated speed1800 rpm

Common questions

What is the power rating of the Caterpillar XQ350?

The Caterpillar XQ350 is rated 350 kW standby.

What engine does the Caterpillar XQ350 use?

The Caterpillar XQ350 is powered by the Caterpillar 3406B engine.

What fuel does the Caterpillar XQ350 use?

The Caterpillar XQ350 runs on Diesel.

What is the oil capacity of the Caterpillar XQ350?

The Caterpillar 3406B engine in the Caterpillar XQ350 has an oil capacity of 34.1 liters.

Parts

45model family
Part #DescriptionQtySystem
1313533PUMP GP - GOVERNOR1Pump PartsGeek
1W4878BELT GUARD - ALTERNATOR PULLEY1Belt PartsGeek
1W7411CLEANER GP-AIR(D)(HEAVY DUTY)1Air filter PartsGeek
4N1062ELECTRIC STARTING MOTOR LH 24V1Starter PartsGeek yemparts $603.91
6N9294CHARGING ALTERNATOR 24V 35 AMP1Alternator PartsGeek FridayParts $237.90
8N9759MOUNTING GP - AIR CLEANER1Air filter PartsGeek
0P8708POWER PLUS RENTL FINANCE PRGM1Service part / kit PartsGeek
0P94840P948401JUL98PRC PROPGM641-61Service part / kit PartsGeek
1031956MOUNTING GP - CONTACTOR1Service part / kit PartsGeek
1036101CONTROL GP -A1Service part / kit PartsGeek
1037284MOUNTING GP - BREAKER1Service part / kit PartsGeek
1047942FASTENER GP1Service part / kit PartsGeek
1048615BASE GP - FUEL TANK &1Service part / kit PartsGeek
1059710LINES GP - OIL DRAIN1Service part / kit PartsGeek
1069931LINES GP - DRAIN1Service part / kit PartsGeek
1080723HARNESS GP - WIRING1Service part / kit PartsGeek
1095264PANEL AR - CONTROL1Service part / kit PartsGeek
1114219MOUNTING GP - CONTROL PANEL1Service part / kit PartsGeek
1114421ACTUATOR AS - 524 GOVERNOR1Service part / kit PartsGeek
1117534MOUNTING GP - ACTUATOR1Service part / kit PartsGeek
1172855TRANSFER GP1Service part / kit PartsGeek
13094153406 DITA/XQ350 RENTAL PKG1Service part / kit PartsGeek
1315455CONTROL AS1Service part / kit PartsGeek
1315544RADIATOR GP1Service part / kit PartsGeek
1N38763406 DITA ENGINE AR - BASIC1Service part / kit PartsGeek
2T8141387 KW @ 1800 RPM (519 BHP)1Service part / kit PartsGeek
2W8198SOLENOID SHUTOFF - ETR 24 V1Service part / kit PartsGeek
4N3093BLOWER FAN1Service part / kit PartsGeek
4N6540MOUNTING GP-HEATER22Service part / kit PartsGeek
4N9778UPPER RADIATOR CONNECTIONS1Service part / kit PartsGeek
4P3359COUPLING1Service part / kit PartsGeek
4P6247PICK UP GP - MAGNETIC1Service part / kit PartsGeek
4P7610PICK UP GP - MAGNETIC1Service part / kit PartsGeek
4P9687SR4 GENERATOR AR-POWER (60HZ)1Service part / kit PartsGeek
4W1727COVER GP1Service part / kit PartsGeek
4W5828AIR INLET HOOD1Service part / kit PartsGeek
5P2506LITERATURE GP - ENGLISH1Service part / kit PartsGeek
5P2586OIL - BULK - ONE LITER1Service part / kit PartsGeek
6I0371ENCLOSURE GP1Service part / kit PartsGeek
6L2927DRY ELBOW1Service part / kit PartsGeek kuduparts $579.00
6N8878FUEL PRESSURE GAUGE1Service part / kit PartsGeek
7E6247JACKET WATER HEATER1Service part / kit PartsGeek
7N8840FAN DRIVE 0.800 RATIO1Service part / kit PartsGeek
7W1340MOUNTING GP - ALTERNATOR1Service part / kit PartsGeek
9G4231BATTERY - 12 VOLT1Service 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

RatingLoadL/hgal/h
Prime75%40.2
Prime100%53.2

Available documents

Spec sheet — Cat XQ350 600V Rental Power Module LEHX0013-00 (Caterpillar)Spec sheet — Cat-XQ350-T4i-spec-sheet (Caterpillar)Spec sheet — Caterpillar-XQ125-XQ225-XQ350-spec-sheet (Caterpillar)Spec sheet — LEHX7306 (Caterpillar)Spec sheet — XQ350-Tier4i-LEHX0012-02 (Caterpillar)Spec sheet — XQ350 (Caterpillar)Spec sheet — holt psd rental product line (Caterpillar)Parts manual — Caterpillar-XQ350-CAT-3406-SN-4JK00407-as-shipped (Caterpillar)