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Kohler 32EOZ Generator Set

The Kohler 32EOZ is a 32 kW (40 kVA) diesel standby generator set. It is available at 120/240 V, 139/240 V and 277/480 V, single-phase, 60 Hz and rated 266.7 A. The set measures 1295×635×810 mm (51.0×25.0×31.9 in) and weighs about 621 kg (1369 lb).

32 kW
Standby
4
Document types

How to read your Kohler serial & model number →

Typical fuel consumption for 30–35 kW Diesel generators →

Compare with other 30–35 kW Diesel generators →

Service parts for the 32EOZ

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

Air intake

1 required

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

Specifications

Fueldiesel
Frequency60.0 Hz
Standby power32 kW
Standby kVA40
Prime power32 kW
EmissionsU.S. Marine EPA Tier 2
ControllerADC 2100, ADC 2100 Advanced Digital
AlternatorFast-Response X
Voltage options120/240 V, 139/240 V, 277/480 V
Phase1 and 3
Rated current266.7 A
Dimensions (L×W×H)1295×635×810 mm
Dry weight621 kg

Maintenance & consumables

ItemSpecCapacityPart #Interval
Air filterElement, air cleanerGM16944 Amazon eBay $49.68 NAPA $41.18

Fault codes

2
CodeNameMeaningSeverityAction
CO-3Fault displayed if the CO parameter is set incorrectlyShutdown
CO-6Fault displayed if the CO parameter is set incorrectlyShutdown

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

Procedures

3
Controller Configuration adjustment

⚠ Be sure to save the new settings immediately before exiting the configuration mode; changes are lost if the controller times out (about 1 minute).

  1. Hold the Select button and move the master switch to RUN to enter configuration mode.
  2. Press the down arrow key then the up arrow key 3 times to enter configuration mode (password).
  3. Set the voltage/frequency parameter Uu for the model.
  4. Set the unit configuration parameter Uc (marine, standby, mobile).
  5. Set the engine type parameter Ec.
  6. Press the up arrow at the Adnc display to enter advanced configuration mode.
  7. Set the engine data input type Ed.
  8. Set the battery voltage Bt (12 or 24 VDC).
  9. Set the communications parameter Cn.
  10. Enter save mode and save your settings before exiting.
Output Voltage and Frequency Adjustment adjustment

⚠ The generator set must be running during these adjustments.

⚠ The engine speed (frequency) adjustment menus are not accessible on models with mechanical governors.

Tools: multimeter

  1. Move the master switch to RUN; the engine starts and runtime hours display.
  2. Hold the Select button about 5 seconds until the program version number displays.
  3. Press the down arrow key then the up arrow key 3 times to enter adjustment mode.
  4. 1P: adjust voltage coarse in large increments (approximately 5-7 volts per step).
  5. 2P: adjust voltage fine in smaller increments (approximately 0.5-0.7 volts per step).
  6. Adjust voltage stability (gain) coarse and fine.
  7. 3P: set volts/Hz (00=low, 09=high).
  8. 4P: adjust engine governor speed coarse and fine.
  9. 5P: adjust engine governor stability (gain) coarse and fine.
  10. Enter SAVE mode and save settings before exiting the adjustment mode.
Controller Replacement installation

⚠ Disconnect the battery cables before working on the generator set; remove the negative lead first and reconnect it last.

Tools: multimeter, personal computer with Program Loader Software

  1. Record generator set information required for configuration: model, market, voltage, frequency, phases, battery voltage.
  2. Place the generator set master switch in the OFF position.
  3. Disconnect power to the battery charger, if equipped.
  4. Disconnect the engine starting battery(ies), negative lead first.
  5. Open the junction box; disconnect the controller at P1, J15, and J16.
  6. Models ECD/EFCD, EGD/EFGD, EGZD only: disconnect the CO sensor harness at the 4-pin connector.
  7. Remove four controller mounting screws and remove the old controller.
  8. ECD/EFCD, EGD/EFGD, EGZD only: install CO sensor module assembly GM46362 on the back of the new controller GM47982.
  9. Install the new controller and secure with the mounting screws.
  10. Reconnect the P1, J15, and J16 connectors; connect the CO sensor harness on applicable models.
  11. Models 10/13/15EG, 10/13/15ERG, 15/30RES, 15/30RYG with S/N before 2053692: cut a 1-in. section of the gray/orange lead entering pin 9 at the ECM connector.
  12. Check that the generator set master switch is in the OFF position.
  13. Reconnect the engine starting battery, negative lead last.
  14. Reconnect power to the battery charger, if equipped.
  15. Check the controller application software version and load the latest application code if necessary.

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

Voltage reconnection

VoltagePhaseConnectionLeadsNotes
100 VAC11Ph, 2WUu00; 60 Hz
100 VAC11Ph, 3WUu00; 60 Hz
100/200 VAC11Ph, 3WUu08; 60 Hz
110 VAC11Ph, 2WUu05; 50 Hz
110 VAC11Ph, 3WUu05; 50 Hz
110/190 VAC3WyeUu17; 50 Hz
110/220 VAC11Ph, 3WUu07; 50 Hz
110/220 VAC1DoglegUu07; 50 Hz
110/220 VAC3DeltaUu15; 50 Hz
115 VAC11Ph, 2WUu05; 50 Hz
115/200 VAC3WyeUu23; 50 Hz
115/230 VAC11Ph, 3WUu02; 50 Hz
115/230 VAC1DoglegUu06; 50 Hz
115/230 VAC3DeltaUu14; 50 Hz
120 VAC11Ph, 2WUu00; 60 Hz
120 VAC11Ph, 3WUu00; 60 Hz
120/208 VAC3WyeUu11; 60 Hz
120/240 VAC11Ph, 3WUu01; 60 Hz
120/240 VAC1DoglegUu01; 60 Hz
120/240 VAC3DeltaUu10; 60 Hz
127/220 VAC3WyeUu16; 60 Hz
139/240 VAC3WyeUu10; 60 Hz
220 VAC11Ph, 2WUu12; 50 Hz
220/380 VAC3WyeUu19; 60 Hz
230 VAC11Ph, 2WUu02; 50 Hz
230/400 VAC3WyeUu03; 50 Hz
240 VAC11Ph, 2WUu13; 50 Hz
240/416 VAC3WyeUu20; 60 Hz
277/480 VAC3WyeUu04; 60 Hz

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 Kohler 32EOZ?

The Kohler 32EOZ is rated 32 kW standby (40.0 kVA).

What kind of fuel does the Kohler 32EOZ run on?

The Kohler 32EOZ runs on diesel.

How much does the Kohler 32EOZ weigh?

The Kohler 32EOZ has a dry weight of 621 kg (1369 lb).

What voltage does the Kohler 32EOZ produce?

The Kohler 32EOZ is offered in 120/240 V, 139/240 V, 277/480 V, 1 and 3-phase.

What alternator comes on the Kohler 32EOZ?

The Kohler 32EOZ uses a Fast-Response X alternator.

Which air filter part number does the Kohler 32EOZ take?

The Kohler 32EOZ uses air filter part number GM16944.

Troubleshooting

6

Fault codes

CodeMeaning
High engine temperatureHigh engine temperature shutdown
Low oil pressureLow oil pressure shutdown
Loss of coolantSeawater pump impeller failure shutdown
Overcrank safetyOverspeed
Over/under voltageOver/under voltage
Over/under frequencyOver/under frequency

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Kohler 32EOZ troubleshooting guide (13 entries) →

Parts

3
Part #DescriptionQtySystem
344089Seawater pump1Pump Amazon eBay
344606Seawater pump pulley1Pump Amazon eBay
GM16944Element, air cleaner1Air filter Amazon eBay $49.68 NAPA $41.18

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
25%3.60.96
50%5.51.46
75%7.51.99
100%9.92.69
Prime25%3.60.96
Prime50%5.51.46
Prime75%7.51.99
Prime100%9.92.69

Available documents

Spec sheet (Kohler)Reference (Kohler)Reference — G18095 (Kohler)Reference — Marine pocket guide (Kohler)Reference — PleasureCraft SpecificationSheet (Kohler)Parts manual (Kohler)Parts manual — 2017-Sea-Spares-Brochure-g12202 (Kohler)Parts manual — g260412 (Kohler)Service manual — tt1364 (Kohler)

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.

Full service, cheapest listings

Priced items from this model's own parts manual.

Air filter GM16944$41.18
1 priced item$41.18