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Generac SD350 Generator Set

The Generac SD350 is a 350 kW (438 kVA) Diesel standby generator set powered by a Mitsubishi 8DC9 engine. It is available at 208 V, 3-phase, 60 Hz and rated 972 A. It holds about 35 L (9.2 gal) of oil and 16.6 L (4.4 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 2 group-8 batteries rated 1000 CCA at 12 V. The set measures 3493×1463.1×2052.3 mm (137.5×57.6×80.8 in), weighs about 8278 kg (18250 lb) and produces 70 dBA at 7 m. An integrated tank holds 1325 L (350.0 gal), roughly 52 hours of runtime.

350 kW
Standby
35.0 L
Oil capacity
2
Document types

How to read your Generac serial & model number →

Typical fuel consumption for 350–355 kW Diesel generators →

Compare with other 350–355 kW Diesel generators →

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power350 kW
Standby kVA438
Prime power315 kW
EmissionsEPA Certified Stationary Emergency
ControllerDDEC Electronic
Oil capacity35.0 L
Alternator520 mm
Voltage options208 V
PhaseThree-Phase
Rated current972 A
Power factor0.8
Circuit breaker1094 A
Battery group8D
Battery cranking1000 CCA
Battery voltage12 V
Battery quantity2
Coolant capacity16.6 L
Max ambient50 °C
Dimensions (L×W×H)3493×1463×2052 mm
Dry weight2816 kg
Sound level70.0 dBA @ 7 m
Fuel tank90.0 L
Tank runtime52 hr

Filters for the Mitsubishi 8DC9

1

Engine-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.

Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:

SystemFilterDescriptionCross-references
Fuel / water separatorP550391Fuel Filter, Water Separator Spin-OnMITSUBISHI ME056268, MITSUBISHI ME131824, BALDWIN BF798, GENERAC 0A53990244 FridayParts $15.99

Maintenance & consumables

for the Mitsubishi 8DC9
ItemSpecCapacityPart #Interval
Oil filter02/23/2022, no Hrs—
Battery8D, Qty 2; battery install date 09/01/2018—
Coolant-16F freeze protection—

Common questions

How many kW is the Generac SD350?

The Generac SD350 is rated 350 kW standby (438.0 kVA).

What engine is in the Generac SD350?

The Generac SD350 is powered by the Mitsubishi 8DC9 engine.

What fuel does the Generac SD350 use?

The Generac SD350 runs on Diesel.

What is the coolant capacity of the Generac SD350?

The Generac SD350 cooling system holds 16.6 liters (4.4 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

How much oil does the Generac SD350 take?

The Generac SD350 has an engine oil capacity of 35 liters (37.0 US quarts), per the manufacturer specification sheet.

What is the prime power rating of the Generac SD350?

The Generac SD350 is rated 315 kW prime (394 kVA), against 350 kW standby.

How loud is the Generac SD350?

The Generac SD350 is rated at 70.0 dBA at 7 m, per the manufacturer specification sheet.

How much does the Generac SD350 weigh?

The Generac SD350 has a dry weight of 2816 kg (6208 lb).

How big is the fuel tank on the Generac SD350?

The Generac SD350 has a 90 liter (24 US gallon) fuel tank, giving about 52 hours of runtime.

What voltages is the Generac SD350 available in?

The Generac SD350 is offered in 208 V, Three-Phase-phase.

What size battery does the Generac SD350 need?

The Generac SD350 uses 2 batteryies, 12 V each, 1000 CCA, group 8D, per the manufacturer specification sheet.

What alternator comes on the Generac SD350?

The Generac SD350 uses a 520 mm alternator.

Fuel consumption

RatingLoadL/hgal/h
Prime25%49.613.05
Prime50%49.613.05
Prime75%68.518.09
Prime100%86.322.77
Standby25%31.88.4
Standby50%54.914.5
Standby75%76.0920.1
Standby100%95.825.3

Available documents

Spec sheet — 0165870SBY (Generac)Spec sheet — 0184860sby-d-sd350-12-9l (Generac)Spec sheet — Generac 350kW SD350 Diesel Generator 12.9L (Generac)Spec sheet — md350-350kw-diesel-generator-mps-specsheet (Generac)Reference — 0161170SBY (Generac)Reference — 0165880SBY (Generac)Reference — 0169340SBY (Generac)Reference — Generac-SD0350-Mitsubishi-8DC9-engine-SN-8DC9-448522-load-test-report-and-inspec (Generac)Reference — sd350-3 400-2 (Generac)

This page was generated from the 9 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.