Specifications
| Fuel | gasoline |
|---|---|
| Frequency | 60.0 Hz |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 400 hr | find | ||
| Fuel filter | — | 400 hr | find | ||
| Oil filter | — | 50 hr | find | ||
| Belt | 36-46 kg (new belt), 25-34 kg (used belt) | — | find | ||
| Coolant | 50% ethylene glycol and 50% clean, softened water | 11.8 L | — | 400 hr | |
| Oil | — | 50 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What engine does the Kohler 18RY use?
The Kohler 18RY is powered by the Ford LRG-423 engine.
What fuel does the Kohler 18RY use?
The Kohler 18RY runs on gasoline.
Troubleshooting
1Symptoms & remedies
| Symptom | Remedy |
|---|---|
| A sudden backfire | Do not operate the generator set with the air cleaner removed. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
84| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 021-00045 | Belt Tension Gauge | 1 | Belt | buy |
| 12259 | Spark Plug Wire Set | Spark plug | buy | |
| 12405 | spark plugs | Spark plug | Amazon eBay $59.15 | |
| 19562 | Silicone Gasket and Sealant | Gasket | buy | |
| 68209 | Drive Belt Tensioner | Belt | Amazon eBay $39.99 | |
| 6A517 | valve stem seals | Seal | buy | |
| 6A666 | Positive Crankcase Ventilation Valve and Hose Assembly | Hose | buy | |
| 6B209 | Drive Belt Tensioner | Belt | buy | |
| 6C315 | crankshaft position sensor | Sensor | FridayParts $29.68 | |
| 6C351 | Crankshaft Position Sensor | Sensor | buy | |
| 6E005 | Inner Timing Belt Cover | Belt | buy | |
| 6E011 | Outer Timing Belt Cover Assembly | Belt | buy | |
| 6K282 | Timing Belt Tensioner (Spring Pivot) Bolt | Belt | buy | |
| 6L273 | Timing Belt Tensioner Spring | Belt | buy | |
| 87056-5100 | Water Pump Inlet Tube O-ring | Seal | buy | |
| 87056-SIOO | O-Ring | Seal | buy | |
| 87056SlOO | O-Ring | Seal | buy | |
| 87057-S94 | O-Ring | Seal | buy | |
| 87071-SlOO | O-Ring, Oil Pump Inlet/Outlet | Seal | buy | |
| 87072-SIOO | O-Ring - Oil Pump Inlet/Outlet | Seal | buy | |
| 87072SlOO | O-Ring, Oil Pump OutleWent | Seal | buy | |
| D79L-6731-B | Oil Filter Wrench | 1 | Oil filter | buy |
| E2FZ-19554-B | Threadlock 262 | Fluid | buy | |
| EOAZ-19554-BA | Stud and Bearing Mount | Fluid | buy | |
| N806700-S | Timing Belt Tensioner | Belt | Amazon eBay | |
| T74P-6306-A | Camshaft Belt Tensioner Tool | Belt | buy | |
| 10153 | Generator Mounting Bracket (also mounts ignition coil) | Service part / kit | buy | |
| 10300 | Generator | Service part / kit | atldiesel $32.20 | |
| 10655 | battery | Service part / kit | buy | |
| 11572 | ignition switch | Service part / kit | buy | |
| 12029 | Ignition Coil | Service part / kit | buy | |
| 12450 | Governor | Service part / kit | FridayParts $9.99 | |
| 17A084 | Engine Lifting Eye (Rear) | Service part / kit | buy | |
| 6A222 | Camshaft Retaining Plate | Service part / kit | buy | |
| 6A338 | Front Main Bearing Cap (Part of 6010) | Service part / kit | buy | |
| 6B316 | Lower Main Bearing (5 Places) | Service part / kit | buy | |
| 6K254 | Timing Belt Tensioner | Service part / kit | buy | |
| 800025SIOO | Screw, M8-1.25 x 18 | Service part / kit | buy | |
| 807288-S2 | Stud, M6-1 x 61.9 | Service part / kit | buy | |
| 9A520 | Fuel Inlet Fitting | Service part / kit | buy | |
| D81L-6002-B | Plastigage | Service part / kit | buy | |
| D81L-6500-A | Blind Hole Puller | 1 | Service part / kit | buy |
| N600313-S2 | Bolt, MIO-1.5 x 40 | Service part / kit | buy | |
| N600414-S | Bolt, MIZ-1.75 x 45 | Service part / kit | buy | |
| N604465-S | Pan Head Screw, M6-1 x 16 | Service part / kit | buy | |
| N605786-S2 | Bolt, M8-1.25 x 20 | Service part / kit | buy | |
| N605787-S52 | Bolt, M8-1.25 x 25 (7 places) | Service part / kit | buy | |
| N606068 | Bolt, Ml O-l .5 x 80 | Service part / kit | buy | |
| N606068-S | Bolt, MIO-1.5 x 80 | Service part / kit | buy | |
| N606502-S36 | Bolt, M5-0.8 x 37 | Service part / kit | buy | |
| N606523-S2 | Bolt, M6-1 x 47.5 | Service part / kit | buy | |
| N606676-S2 | Screw and Washer Assembly, M6-1 x 22.5 | Service part / kit | buy | |
| N60676-S2 | Screw, M6-1 x 22.5 | Service part / kit | buy | |
| N620482-S | Nut, Ml O-5 | Service part / kit | buy | |
| N620482-S2 | Nut, Ml O-l 5 | Service part / kit | buy | |
| N621506-S2 | Nut, M6-1 | Service part / kit | buy | |
| N621906-S2 | Nut, M6-1 | Service part / kit | buy | |
| N800112-52 | Crankshaft | Service part / kit | buy | |
| N800112-s100 | Tensioner Adjusting Bolt, M8-1.25 x 20 (Under Wrench) | Service part / kit | buy | |
| N800112-s2 | Adjusting Bolt, M8-1.25 x 20 | Service part / kit | buy | |
| N800113-s | Nut, M9-1 | Service part / kit | buy | |
| N800896-S2 | Stud, M8x1.25x1.25~38 (2 places) | Service part / kit | buy | |
| N801658-S | Pointer Triangle (Part of Camshaft Sprocket) | Service part / kit | buy | |
| N802209-SlOO | Bolt, MIO-1.5 x 55 (7 Places) | Service part / kit | buy | |
| N802884-SIOO | Stud, MlO-1.5 x MIO-1.5 x 84 | Service part / kit | buy | |
| N803729-S | Stud, MIO-1.5 x M12-1.75 x 108.5 (1 Place) | Service part / kit | buy | |
| N804958-S8 | Bolt, M6-1 x 22.5 | Service part / kit | buy | |
| N805044-S2 | Bolt, M14-1.5 x 55 | Service part / kit | buy | |
| N806378-S36 | Bolt, M6-1 x 27.5 (16 Places) | Service part / kit | buy | |
| N806379-S36 | Bolt, M6-1 x 57.5 | Service part / kit | buy | |
| N807013-S | Bolt, M12-1.75 x 100.7 | Service part / kit | buy | |
| N807419-S | Plug (Part of 6E011) | Service part / kit | buy | |
| N807497-S2 | Bolt, M6-1 x 37.5 | Service part / kit | buy | |
| N80749722 | Bolt, M12-1.75 x 80 | Service part / kit | buy | |
| N808049-S102 | Stud, M8-1.25 x 51 | Service part / kit | buy | |
| N808049-SIOZ | Stud (Part of 6049) | Service part / kit | buy | |
| N808517-SIOO | Bolt, M8-1.25 x 53 | Service part / kit | buy | |
| N808534-S2 | Bolt, M6-1 x 17 | Service part / kit | buy | |
| T50T-100-A | Impact Slide Hammer | Service part / kit | buy | |
| T59L-100-B | Impact Slide Hammer | Service part / kit | buy | |
| T73L-6011-A | Engine Cylinder Hone Set | Service part / kit | buy | |
| T74P-6254-A | Engine Plug Replacer | Service part / kit | buy | |
| TOOL-4201-C | Dial Indicator with Bracketry | Service part / kit | buy | |
| TOOL-4201-G | Dial Indicator | 1 | Service part / kit | buy |
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.
Available documents
BrochureReferenceOwner's manualService manual