Service parts for the PN-6x
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredIgnition
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Natural gas or propane |
|---|---|
| Standby power | 7.5 kW |
| Prime power | 7.5 kW |
| Oil capacity | 1.9 L |
| Voltage options | 48 V |
Engine
| Oil capacity | 1.9 L |
|---|---|
| Coolant capacity | 0.0 L |
| Displacement | 8.5 L |
| Aspiration | air-cooled |
| Rated speed | 3600 rpm |
Same engine, other brands
2 brandsThe Kohler CH20 in this set also powers 5 generator sets sold under 2 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Kohler | 8.5RES, COM 7.5, COM-6, COM6 |
| Cummins/Onan | 8.5RMY |
Maintenance & consumables
for the Kohler CH20| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 24 083 02 | 500 hr | buy | ||
| Fuel filter | — | ||||
| Oil filter | 12 050 01 | 200 hr | Amazon eBay $19.06 KuduParts $11.00 FridayParts $33.98 | ||
| Battery | Battery, recommended cold cranking amps (CCA): Qty., minimum rating for 0 F | — | |||
| Belt | — | ||||
| Coolant | — | ||||
| Oil | 5810321 | 5810321 | 50 hr | Amazon eBay $170.00 | |
| Spark plug | 0.76 mm (0.030 in.) | 12 132 02-S | 500 hr | buy |
Common questions
What size generator is the AlphaGen PN-6x?
The AlphaGen PN-6x is rated 7.5 kW standby.
What engine does the AlphaGen PN-6x use?
The AlphaGen PN-6x is powered by the Kohler CH20 engine.
What kind of fuel does the AlphaGen PN-6x run on?
The AlphaGen PN-6x runs on Natural gas or propane.
How much oil does the AlphaGen PN-6x take?
The Kohler CH20 engine in the AlphaGen PN-6x has an oil capacity of 1.9 liters.
What voltages is the AlphaGen PN-6x available in?
The AlphaGen PN-6x is offered in 48 V.
What oil filter fits the AlphaGen PN-6x?
The AlphaGen PN-6x uses oil filter part number 12 050 01.
What air filter fits the AlphaGen PN-6x?
The AlphaGen PN-6x uses air filter part number 24 083 02.
Parts
44| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 12 050 01 | Oil Filter | 1 | Oil filter | Amazon eBay $19.06 KuduParts $11.00 FridayParts $33.98 |
| 12 050 01-S | Filter, oil | 1 | Oil filter | Amazon eBay $19.06 KuduParts $32.00 FridayParts $33.98 |
| 12 132 02 | Spark plug | 1 | Spark plug | buy |
| 12 132 02-S | Spark Plug | 1 | Spark plug | buy |
| 24 050 01-S | Filter, breather | 8 | Filter | buy |
| 24 083 02 | Precleaner element | 1 | Air filter | buy |
| 24 083 02-S | Precleaner | 8 | Air filter | buy |
| 24 083 05-S | Precleaner | 8 | Air filter | buy |
| 24 083 08 | Air cleaner element | 1 | Air filter | buy |
| 24 083 08-S | Element, air filter | 1 | Air filter | buy |
| 24 083 09-S | Element, air filter | 1 | Air filter | buy |
| 24 132 01 | Spark Plug | 2 | Spark plug | buy |
| 241927 | Sensor, speed | 1 | Sensor | Amazon eBay $75.00 |
| 25 132 14-S | Spark plug | 2 | Spark plug | buy |
| 269373 | Alternator Assembly | 1 | Alternator | Amazon eBay |
| 745-020-B0-003 | Enclosure Grounding Stud | Grounding stud | Amazon | |
| A-345052 | Engine oxygen sensor | 1 | Sensor | Amazon eBay |
| ADV-6823-A | Air Filter, Spark Plug Location | 1 | Air filter | Amazon eBay |
| BKR-8YU11 | Spark Plug, CH20/CH740 | 4 | Spark plug | Amazon eBay |
| GM28823 | Sensor, oil temperature | 1 | Sensor | Amazon eBay $50.00 |
| GM28981 | UEGO sensor interface harness | Sensor | eBay | |
| GM29253-GA1 | Controller Wiring Diagram | 1 | Controller wiring diagram | Amazon eBay |
| GM29385 | UEGO oxygen sensor service kit | Sensor | eBay | |
| X-6422-31 | Seal | Seal | eBay | |
| 042-146-10 | Low pressure Excess Flow Valve (above ground ¾” x 4” NPT nipple) | 1 | Service part / kit | Amazon eBay |
| 223316 | Fuse, 10 A, 250 V | 1 | Service part / kit | Amazon eBay $31.37 |
| 292937 | Fuse, 20 A, 250 V | 1 | Service part / kit | Amazon eBay $31.78 NAPA $17.36 |
| 345095 | Annual Maintenance Kit | 1 | Service part / kit | Amazon eBay $67.47 |
| 358337 | Fuse: Auxiliary Winding (F1) 10 Amp | 1 | Service part / kit | Amazon eBay $45.17 NAPA $65.06 |
| 745-020-B0-001 | Rev. A. | Service part / kit | Amazon eBay | |
| A-345233 | Lead | -- | Service part / kit | Amazon eBay |
| AGS-10 | AGS 10 inline fuse, battery charger (located in the battery lead) | 1 | Service part / kit | eBay |
| F-228605 | Kit, voltage regulator | 1 | Service part / kit | Amazon eBay $539.95 |
| GM10064 | PCB assembly (relay controller) | 1 | Service part / kit | Amazon eBay $337.95 |
| GM19462-KP4-QS | Carburetor heater kit | 1 | Service part / kit | Amazon eBay $115.00 |
| GM24928 | Circuit breaker | Service part / kit | eBay | |
| GM29671 | PCB Assy., Relay board 12V | 1 | Service part / kit | Amazon eBay $199.00 |
| GM58703 | Assy, J1939/ModBus/Ethernet Converter (network bridge) | 1 | Service part / kit | eBay |
| GM62345 | Maintenance Service Kit | 1 | Service part / kit | eBay |
| GM62345-SKP1-QS | Maintenance Kit | 1 | Service part / kit | Amazon eBay |
| GM62346-SKP1-QS | Maintenance Kit | 1 | Service part / kit | Amazon eBay |
| GM62347-SKP1-QS | Maintenance Kit | 1 | Service part / kit | Amazon eBay $79.99 |
| GM90365-SKP1-QS | Maintenance Kit | 1 | Service part / kit | Amazon eBay |
| GM90366-SKP1-QS | Maintenance Kit | 1 | Service 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.