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Cummins/Onan 6BTAA5.9-G5 Generator Set

The Cummins/Onan 6BTAA5.9-G5 is a 141 kW (176 kVA) diesel standby generator set powered by a Cummins/Onan 6BTAA5.9-G5 engine. It operates at 50 Hz.

141 kW
Standby
5.9 L
Displacement
1
Document types

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

Typical fuel consumption for 140–145 kW Diesel generators →

Compare with other 140–145 kW Diesel generators →

Specifications

Fueldiesel
Frequency50.0 Hz
Standby power141 kW
Standby kVA176
Prime power128 kW

Engine

Cummins/Onan 6BTAA5.9-G5
Displacement5.9 L
Rated speed1500 rpm

Filters for the Cummins/Onan 6BTAA5.9-G5

7

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 filterP558615Lube Filter, Spin-On Full FlowCUMMINS 10521, CUMMINS 3865405, NAPA 1607, NAPA 61607 buy
Fuel filterP550440Fuel Filter, Spin-On SecondaryCUMMINS 3831063, CUMMINS 3890707, NAPA 3358, BALDWIN BF788 FridayParts $356.80
Fuel filterP553004Fuel Filter, Spin-OnCUMMINS 3903640, CUMMINS 53C0045, NAPA 3358, RENAULT VI 0000150564 FridayParts $18.20
Fuel / water separatorP551329Fuel Filter, Water Separator Spin-On Twist&DrainCUMMINS 11E170210, CUMMINS 3890063, NAPA 3357, BALDWIN BF1280 FridayParts $151.00
Fuel / water separatorP551077Fuel Filter, Water Separator Spin-On Twist&DrainATLAS COPCO 16260347, ATLAS 2914823600, TEREX 45056112, AGCO 539269D1 KuduParts $26.00 FridayParts $28.50

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

SystemFilterDescriptionCross-references
Coolant filterP552072Coolant Filter, Spin-On Sca PlusCUMMINS 3100305, CUMMINS 3300900, NAPA 4072, IMPERIAL 04WF2072 buy
Coolant filterP554071Coolant Filter, Spin-OnCUMMINS 209604, CUMMINS 209606, NAPA 4071, WALGAHN-MOTORENTECHN 00811412 FridayParts $397.60

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.

Common questions

How many kW is the Cummins/Onan 6BTAA5.9-G5?

The Cummins/Onan 6BTAA5.9-G5 is rated 141 kW standby (176.0 kVA).

What engine is in the Cummins/Onan 6BTAA5.9-G5?

The Cummins/Onan 6BTAA5.9-G5 is powered by the Cummins/Onan 6BTAA5.9-G5 engine.

What fuel does the Cummins/Onan 6BTAA5.9-G5 use?

The Cummins/Onan 6BTAA5.9-G5 runs on diesel.

What is the prime power rating of the Cummins/Onan 6BTAA5.9-G5?

The Cummins/Onan 6BTAA5.9-G5 is rated 128 kW prime (160 kVA), against 141 kW standby.

Available documents

Reference — CUMMINS-GENERATOR-ENGINES-CATALOG (Cummins/Onan)

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.