The John Deere 6090HFG86 is a 9 L 6-cylinder turbocharged, charge air-cooled engine rated at 1800 rpm, producing up to 345 kW. It powers generator sets from Kohler and MTU, including the 300REOZJ and 6R0150 DS300. It holds 33.4 L (8.8 gal) of oil and 16 L (4.2 gal) of coolant.
Also known as: John Deere 6090HFG86
Part of the John Deere 6090 engine family — 26 variants share parts & fitment.
| Oil capacity | 33.4 L |
|---|---|
| Coolant capacity | 16.0 L |
| Displacement | 9.0 L |
| Cylinders | 6 |
| Aspiration | Turbocharged, Charge Air-Cooled |
| Rated speed | 1800 rpm |
| Gross power | 345 kW |
Shared across brands: Kohler, MTU
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | 10 in. weld flange bolt circle diameter B | 361.95 | mm (14.25 in.) | |
| Other | 10 in. weld flange outside diameter C | 406.4 | mm (16.0 in.) | |
| Other | 10 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 12 in. weld flange bolt circle diameter B | 431.80 | mm (17.00 in.) | |
| Other | 12 in. weld flange outside diameter C | 482.6 | mm (19.0 in.) | |
| Other | 12 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 14 in. weld flange bolt circle diameter B | 476.25 | mm (18.75 in.) | |
| Other | 14 in. weld flange outside diameter C | 533.4 | mm (21.0 in.) | |
| Other | 14 in. weld flange quantity of bolts / bolt hole diameter D | 12, 28.58 | mm (1.13 in.) | |
| Other | 16 in. weld flange bolt circle diameter B | 539.75 | mm (21.25 in.) | |
| Other | 16 in. weld flange outside diameter C | 596.9 | mm (23.5 in.) | |
| Other | 16 in. weld flange quantity of bolts / bolt hole diameter D | 16, 28.58 | mm (1.13 in.) | |
| Other | 18 in. weld flange bolt circle diameter B | 577.85 | mm (22.75 in.) | |
| Other | 18 in. weld flange outside diameter C | 635.0 | mm (25.0 in.) | |
| Other | 18 in. weld flange quantity of bolts / bolt hole diameter D | 16, 31.75 | mm (1.25 in.) | |
| Other | 20 in. weld flange bolt circle diameter B | 635.00 | mm (25.00 in.) | |
| Other | 20 in. weld flange outside diameter C | 698.5 | mm (27.5 in.) | |
| Other | 20 in. weld flange quantity of bolts / bolt hole diameter D | 20, 31.75 | mm (1.25 in.) | |
| Other | 5 in. weld flange bolt circle diameter B | 215.90 | mm (8.50 in.) | |
| Other | 5 in. weld flange outside diameter C | 241.30 | mm (9.50 in.) | |
| Other | 5 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 6 in. weld flange bolt circle diameter B | 254.0 | mm (10.0 in.) | |
| Other | 6 in. weld flange outside diameter C | 279.4 | mm (11.0 in.) | |
| Other | 6 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 8 in. weld flange bolt circle diameter B | 298.45 | mm (11.75 in.) | |
| Other | 8 in. weld flange outside diameter C | 342.9 | mm (13.5 in.) | |
| Other | 8 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | Weld flange angle A (10, 12, 14 in. nominal pipe size) | 30 | deg. | |
| Other | Weld flange angle A (16, 18, 20 in. nominal pipe size) | 22.5 | deg. | |
| Other | Weld flange angle A (5, 6, 8 in. nominal pipe size) | 45 | deg. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Part # | Description | Category |
|---|---|---|
| AT387574 | (24V, 100A) (3152) | alternator |
| RE500226 | ALTERNATOR | alternator |
| RE551447 | ALTERNATOR | alternator |
| RE551448 | ALTERNATOR | alternator |
| RE558676 | ALTERNATOR | alternator |
| RE65414 | ALTERNATOR | alternator |
| SE501838 | (REMAN FOR AT387574) (3152) | alternator |
| SE502563 | ALTERNATOR | alternator |
| 4UA10 | 15 Relay I/O Board | battery |
| DZ118761 | FAN BELT | belt |
| DZ118995 | FAN BELT | belt |
| R519476 | FAN BELT | belt |
| SE501748 | CONNECTING ROD | connecting_rod |
| SE501759 | CONNECTING ROD | connecting_rod |
| SE502800 | CONTROLLER | controller |
| SE501747 | CYLINDER HEAD | cylinder_head |
| PFF51674 | Secondary Fuel Element (OEM: RE506428) | fuel_filter |
| PFF5551 | Primary & Secondary Fuel Kit (OEM: RE525523, RE527961) | fuel_filter |
| RE520906 | PRIMARY FUEL FILTER | fuel_filter |
| RE525523 | Oil Filter Component | fuel_filter |
| RE527961 | FUEL FILTER | fuel_filter |
| SE501947 | FUEL INJECTION NOZZLE | fuel_injection_nozzle |
| SE501948 | FUEL INJECTION NOZZLE | injector |
| RE509672 | OIL FILTER | oil_filter |
| RE530346 | OCV FILTER | oil_filter |
| APM303 | Control Panel | other_service |
| DZ121193 | SHORT BLOCK ASSEMBLY | other_service |
| M3227 | Canopy | other_service |
| R518277 | CRANKSHAFT PULLEY | other_service |
| RE520465 | TORSIONAL DAMPER | other_service |
| RE537960 | TORSIONAL DAMPER | other_service |
| RE57604 | DAMPER | other_service |
| SE502847 | COMPLETE BLOCK ASSEMBLY | other_service |
| SE501228 | WATER PUMP (REMAN FOR RE530194) | pump |
| SE501922 | FUEL INJECTION PUMP (REMAN FOR RE571640) | pump |
| RE506103 | STARTER | starter |
| RE529661 | STARTER (12 V) | starter |
| RE556999 | STARTER | starter |
| RE564633 | STARTER | starter |
| SE501866 | STARTER | starter |
| SE502374 | TURBOCHARGER | turbcharger |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.
The John Deere 6090HFG86 engine has an oil capacity of 33.4 liters.
The John Deere 6090HFG86 has a displacement of 9.0 liters with 6 cylinders.
The John Deere 6090HFG86 powers 2 generator set(s), including Kohler 300REOZJ, MTU 6R0150 DS300.