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Cummins/Onan QSL9-G7 Generator Set

The Cummins/Onan QSL9-G7 is a 264 kW (330 kVA) diesel standby generator set powered by a Cummins/Onan QSL9-G7 engine. It operates at 50 Hz.

264 kW
Standby
8.9 L
Displacement
2
Document types

How to read your Cummins/Onan serial & model number →

Typical fuel consumption for 260–265 kW Diesel generators →

Compare with other 260–265 kW Diesel generators →

Specifications

Fueldiesel
Frequency50.0 Hz
Standby power264 kW
Standby kVA330
Prime power240 kW

Engine

Cummins/Onan QSL9-G7
Displacement8.9 L
AspirationTurbo Charged
Rated speed1500 rpm

Filters for the Cummins/Onan QSL9-G7

4

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.

SystemFilterDescriptionCross-references
Oil filterP553000Lube Filter, Spin-On Full FlowCUMMINS 3318853, CUMMINS 3825970, NAPA 1748, NAPA 1748XD FridayParts $125.00
Fuel filterP550774Fuel Filter, Spin-OnCUMMINS 3959612, CUMMINS 5301448, HYUNDAI 11LB70020, WIRTGEN 195744 KuduParts $34.00 FridayParts $35.90
Fuel / water separatorP550848Fuel Filter, Water Separator Spin-On Twist&DrainCUMMINS 3973233, CUMMINS 4931955, NAPA 3732, LINDE 0019830505 FridayParts $50.99
Coolant filterP552071Coolant Filter, Spin-On Sca PlusCUMMINS 299080, CUMMINS 299880, NAPA 4071, TORO 012706560 FridayParts $37.53

Service intervals

2
ItemActionHoursMonthsNotes
valve clearanceCheck2000 hrB-Series (4BT3.3): valve clearance checks not required for 2000 hours, twice the industry standard
engine overhaulOther20000 hrQSK23-Series: expected life cycle to 20,000 hours before first overhaul

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
FuelNumber 2 diesel fuelDirect injection fuel system; fuel filter (dual element with water separator) and automatic electric fuel shutoff

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

How many kW is the Cummins/Onan QSL9-G7?

The Cummins/Onan QSL9-G7 is rated 264 kW standby (330.0 kVA).

Which engine powers the Cummins/Onan QSL9-G7?

The Cummins/Onan QSL9-G7 is powered by the Cummins/Onan QSL9-G7 engine.

What kind of fuel does the Cummins/Onan QSL9-G7 run on?

The Cummins/Onan QSL9-G7 runs on diesel.

What is the continuous rating of the Cummins/Onan QSL9-G7?

The Cummins/Onan QSL9-G7 is rated 240 kW prime (300 kVA), against 264 kW standby.

Parts

4
Part #DescriptionQtySystem
PI144D1Alternator Model1Alternator Amazon eBay
UC274CAlternator Model1Alternator Amazon eBay $8681.95
UC274KAlternator Model1Alternator Amazon eBay
V2403-M-E3BGEngine Model1Service part / kit 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.

Available documents

Spec sheet — Cummins-C300D5-Spec-Sheet (Cummins/Onan)Spec sheet — Cummins-DQDAA-DQDAB-DQDAC-spec-sheet (Cummins/Onan)Spec sheet — QSL9-G7 (Cummins/Onan)Reference — CUMMINS-GENERATOR-ENGINES-CATALOG (Cummins/Onan)

This page was generated from the 4 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.