Service parts for the HYW 25 M6
Grouped by system, with how many of each the parts manual calls for.
Fuel system
1 requiredOil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Frequency | 60.0 Hz |
|---|---|
| Standby power | 22 kW |
| Prime power | 20 kW |
| Oil capacity | 7.4 L |
| Alternator | Stamford/AvK PI144H |
| Voltage options | 120/240 V |
| Phase | 1 Ph |
Engine
| Oil capacity | 7.4 L |
|---|---|
| Coolant capacity | 9.3 L |
| Displacement | 2.0 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Filters for the Yanmar 4TNV84T
3Engine-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:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P550162 | Lube Filter, Spin-On Full Flow | YANMAR 12915035170, NAPA 1301, NAPA 1334, NAPA 61334 | FridayParts $10.50 |
| Fuel filter | P502161 | Fuel Filter, Cartridge | NAPA 3507, BALDWIN PF717, DAEWOO 12910055650, IHI 130366050 | KuduParts $11.00 FridayParts $13.62 |
| Fuel filter | P550048 | Fuel Filter, Spin-On | YANMAR 11900055601, YANMAR 11900055602, NAPA 3399, BALDWIN BF7552 | KuduParts $20.00 FridayParts $22.00 |
Same engine, other brands
1 brandThe Yanmar 4TNV84T in this set also powers 2 generator sets sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Kohler | 16.5EFORD, 16.5EFORZD |
Maintenance & consumables
for the Yanmar 4TNV84T| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry-type replaceable element air-cleaner | — | |||
| Fuel filter | 3031131 | Amazon eBay $35.97 KuduParts $20.00 | |||
| Oil filter | 3031130 | Amazon eBay PartsGeek $7.98 | |||
| Battery | Battery, battery rack, and cables | — | |||
| Belt | Belt driven charging alternator | — | |||
| Coolant | — | ||||
| Oil | — | ||||
| Spark plug | — |
Compatible filters for the Yanmar 4TNV84T — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.
- Air filter: Donaldson P772578 Donaldson P775298 Wix 42801 Baldwin PA1681-FN Wix 49592
Common questions
How many kW is the Himoinsa HYW 25 M6?
The Himoinsa HYW 25 M6 is rated 22 kW standby.
What engine does the Himoinsa HYW 25 M6 use?
The Himoinsa HYW 25 M6 is powered by the Yanmar 4TNV84T engine.
What is the oil capacity of the Himoinsa HYW 25 M6?
The Yanmar 4TNV84T engine in the Himoinsa HYW 25 M6 has an oil capacity of 7.4 liters.
How much coolant does the Himoinsa HYW 25 M6 hold?
The Himoinsa HYW 25 M6 cooling system holds 9.3 liters (2.5 US gallons) for the engine, per the manufacturer specification sheet.
What is the continuous rating of the Himoinsa HYW 25 M6?
The Himoinsa HYW 25 M6 is rated 20 kW prime, against 22 kW standby.
What voltages is the Himoinsa HYW 25 M6 available in?
The Himoinsa HYW 25 M6 is offered in 120/240 V, 1 Ph-phase.
Which alternator is fitted to the Himoinsa HYW 25 M6?
The Himoinsa HYW 25 M6 uses a Stamford/AvK PI144H alternator.
What oil filter fits the Himoinsa HYW 25 M6?
The Himoinsa HYW 25 M6 uses oil filter part number 3031130.
Which fuel filter part number does the Himoinsa HYW 25 M6 take?
The Himoinsa HYW 25 M6 uses fuel filter part number 3031131.
Which air filter part number does the Himoinsa HYW 25 M6 take?
The Himoinsa HYW 25 M6 uses air filter part numbers Donaldson P772578, Donaldson P775298.
Troubleshooting
21Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Unit is inoperative | Check the battery and wiring to the unit. Check the DC supply. Check the DC fuse. |
| Unit shuts down | Check DC supply voltage is not above 35 Volts or below 9 Volts; Check the operating temperature is not above 70 °C. Check the DC fuse. |
| Unit locks out on Emergency Stop | If an Emergency Stop Switch is not fitted, ensure that a positive is connected to the Emergency Stop input. Check emergency stop switch is functioning correctly. Check Wiring is not open circuit. |
| Intermittent Magnetic Pick-up sensor fault | Ensure that Magnetic pick-up screen is only connected at one end, if connected at both ends, this enables the screen to act as an aerial and will pick up random voltages. |
| Low oil Pressure fault operates after engine has fired | Check engine oil pressure. Check oil pressure switch/sender and wiring. Check configured polarity (if applicable) is correct (i.e. Normally Open or Normally Closed) or that sender is compatible with the 5310 Module and is correctly configured. |
| High engine temperature fault operates after engine has fired. | Check engine temperature. Check switch/sender and wiring. Check configured polarity (if applicable) is correct (i.e. Normally Open or Normally Closed) or that sender is compatible with the 5310 Module. |
| Shutdown fault operates | Check relevant switch and wiring of fault indicated on LCD display. Check configuration of input. |
| Warning fault operates | Check relevant switch and wiring of fault indicated on LCD display. Check configuration of input. |
| Fail to Start is activated after pre-set number of attempts to start | Check wiring of fuel solenoid. Check fuel. Check battery supply. Check battery supply is present on the Fuel output of the module. Check the speed sensing signal is present on the 5310 inputs. Refer to engine manual. |
| Continuous starting of generator when in AUTO | Check that there is no signal present on the “Remote Start” input. Check configured polarity is correct. |
| Generator fails to start on receipt of Remote Start signal. | Check Start Delay timer has timed out. |
| Pre-heat inoperative | Check wiring to engine heater plugs. Check battery supply. Check battery supply is present on the Pre-heat output of module. Check pre-heat has been selected in your configuration. |
| Starter motor inoperative | Check wiring to starter solenoid. Check battery supply. Check battery supply is present on the Starter output of module. Ensure that the Emergency Stop input is at Positive. |
| Engine runs but generator will not take load | Check Warm up timer has timed out. Ensure generator load inhibit signal is not present on the module inputs. Check connections to the switching device. |
| Incorrect reading on Engine gauges | Check engine is operating correctly. Check sender and wiring paying particular attention to the wiring to terminal 47 (refer to appendix). Check that sender is compatible with the 5310 Module and is correctly configured. |
| No voltage build-up when starting set. | Check speed; Check residual voltage.; Follow Separate Excitation Test Procedure to check generator and AVR. |
| Unstable voltage either on no-load or with load. | Check speed stability.; Check stability setting. |
| High voltage either on no-load or with load. | Check speed.; Check that generator load is not capacitive (leading power factor). |
| Low voltage, no load. | Check speed.; Check link 1-2 or external hand trimmer leads for continuity. |
| Low voltage on load. | Check speed.; Check UFRO setting.; Follow Separate Excitation Procedure to check generator and AVR. |
| Excessive voltage/speed dip on load switching. | Check governor response. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.