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Cummins/Onan YK6500 Generator Set

The Cummins/Onan YK6500 is a 6.5 kW (6.5 kVA) standby generator set powered by a Cummins/Onan MCE engine. It is available at 12 V, 60 Hz. It holds about 2.8 L (0.7 gal) of oil and 2.8 L (0.7 gal) of coolant.

6.5 kW
Standby
2.8 L
Oil capacity
0
Document types

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

Service parts for the YK6500

Grouped by system, with how many of each the parts manual calls for.

Oil system

1 required
927-01Oil filtersee priceAmazon

Belts

1 required
M-1823Beltsee priceAmazon

Ignition

1 required
ES-I374Spark plugsee priceAmazon

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Frequency60.0 Hz
Standby power6.5 kW
Standby kVA6
Oil capacity2.8 L
Voltage options12 V
Power factor1.0
Battery voltage12 V
Coolant capacity2.8 L

Engine

Cummins/Onan MCE
Oil capacity2.8 L
Coolant capacity2.8 L
AspirationNaturally aspirated
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan MCE
ItemSpecCapacityPart #Interval
Air filter—
Fuel filter—35 hr
Oil filterOil Filter927-01 Amazon eBay
Batterycleaning, checking specific gravity, checking electrolyte level—100 hr
BeltM-1823 Amazon eBay
Coolant2.8 L—100 hr
Oil2.8 L—250 hr
Spark plugES-I374 Amazon eBay

Common questions

What is the power rating of the Cummins/Onan YK6500?

The Cummins/Onan YK6500 is rated 6.5 kW standby (6.5 kVA).

What engine does the Cummins/Onan YK6500 use?

The Cummins/Onan YK6500 is powered by the Cummins/Onan MCE engine.

What's the oil capacity on a Cummins/Onan YK6500?

The Cummins/Onan MCE engine in the Cummins/Onan YK6500 has an oil capacity of 2.8 liters.

How much coolant does the Cummins/Onan YK6500 hold?

The Cummins/Onan YK6500 cooling system holds 2.8 liters (0.7 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What voltage does the Cummins/Onan YK6500 produce?

The Cummins/Onan YK6500 is offered in 12 V.

Which oil filter part number does the Cummins/Onan YK6500 take?

The Cummins/Onan YK6500 uses oil filter part number 927-01.

Troubleshooting

1

Symptoms & remedies

SymptomRemedy
Engine has a number of sensors that continuously monitor it for abnormal conditions such as low oil pressure, high coolant temperature, and high exhaust temperature.The Fault Breaker is a manual reset breaker that shuts down the engine for these conditions.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

4
Part #DescriptionQtySystem
927-01Oil Filter24Oil filter Amazon eBay
ES-I374Spark plug gap checkSpark plug Amazon eBay
0-1174Figure 4-6. CHECKING BRUSH WEARService part / kit Amazon eBay
518-0347Loctite, Bottle (250cc)1Service 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.

Fuel consumption

RatingLoadL/hgal/h
Standby1.35.0

Available documents

Service manual — 927-0124 Onan MCE Ensign series 4500-6500 Marine Genset Operator's manual (01-1996) (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.