Specifications
| Fuel | diesel |
|---|---|
| Frequency | 50.0 Hz |
| Standby power | 4 kW |
| Standby kVA | 4 |
| Prime power | 4 kW |
| Emissions | EPA Tier 3 |
| Controller | A1 |
| Oil capacity | 4.0 L |
| Voltage options | 110 V, 220 V, 115 V, 230 V, 120 V, 240 V |
| Phase | 1 |
| Rated current | 41.7 A |
| Battery cranking | [360, 500] CCA |
| Battery voltage | ['12 volts', '24 volts'] V |
| Coolant capacity | ['8 quart (7.6 liter)', '8 quart (7.6 liter)'] L |
| Dimensions (L×W×H) | 662×511×524 mm |
| Dry weight | 195 kg |
| Sound level | 71.0 dBA @ 1 m |
Maintenance & consumables
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | find | |||
| Fuel filter | 149-2106 | 500 hr | Amazon eBay $36.99 | ||
| Oil filter | — | 50 hr | find | ||
| Belt | — | 200 hr | find | ||
| Coolant | 2.1 liter | — | |||
| Oil | No. 2 diesel | 2.1 liter | — | 500 hr |
Common questions
What is the power rating of the Cummins/Onan MDKB?
The Cummins/Onan MDKB is rated 4 kW standby (4.0 kVA).
What fuel does the Cummins/Onan MDKB use?
The Cummins/Onan MDKB runs on diesel.
Parts
156| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 0098-8374 | GENERATOR CONNECTION DIAGRAM | Connection diagram | buy | |
| 0500-4199 | OUTLINE DRAWING—MDKBL | Outline drawing | buy | |
| 120-1386 | Cover, Hydraulic Pump | 1 | Pump | buy |
| 122-0810 | Oil Filter | 1 | Oil filter | Amazon eBay $36.45 |
| 130-4434 | Zinc Pencil | 1 | Zinc anode | eBay $32.94 |
| 132-0415 | Pump Impeller | 1 | Impeller | buy |
| 140-3752 | Air Filter | Air filter | buy | |
| 149-2106 | Fuel Filter | 1 | Fuel filter | Amazon eBay $36.99 |
| 18-0256 | DC Circuit Breaker | 1 | Digital display panel | buy |
| 18-0347 | Hour Meter | 1 | Hour meter | buy |
| 185-2095 | O Ring (Spec A) | 1 | Seal | buy |
| 185-2284 | Gasket | 1 | Gasket | buy |
| 185-2338 | Gasket | 1 | Gasket | buy |
| 185-2658 | Switch, Magnetic (12V) | 1 | Sensor | buy |
| 185-5421 | 12V Glow Plugs | 2 | Glow plug | Amazon eBay |
| 185-5484 | Cap, Sealing | 4 | Gasket | buy |
| 185-5835 | Oil Filter | 1 | Oil filter | Amazon eBay $21.32 |
| 185-6472 | Bush, Governor Gear | 1 | Seal | buy |
| 185-6542 | Gear, Oil Pump Drive | 1 | Pump | buy |
| 185-6545 | O Ring (Spec A) | 1 | Seal | buy |
| 185-6579 | Gasket | 1 | Gasket | woodline $25.60 |
| 185-6866 | Indicator, Oil Level | 1 | Sensor | buy |
| 185-6934 | V-Belt | 1 | Belt | Amazon eBay $39.00 |
| 185-7055 | Cruise Kit | 2 | Cruise kit | buy |
| 185-7104 | Starter (12V) | 1 | Starter | FridayParts $167.31 |
| 185-7105 | Starter (24V) | 1 | Starter | buy |
| 185-7232 | Clutch, Starter (12V) | 1 | Starter | buy |
| 185-7239 | Switch, Magnetic (24V) | 1 | Sensor | buy |
| 185-7429 | O Ring (Begin Spec B) | 1 | Seal | buy |
| 185-7444 | Oil Filter | 1 | Oil filter | Amazon eBay $29.95 |
| 185-7628 | 24V Glow Plugs | 3 | Glow plug | Amazon eBay |
| 420-0577 | Oil Filter Wrench | 1 | Oil filter wrench | buy |
| 511-0197 | V-Belt | 1 | Belt | Amazon eBay |
| 511-0201 | V-Belt | 1 | Belt | Amazon eBay |
| F1379 | Siphon Break Kit | Siphon break | buy | |
| 0900-0625 | Standard Repair Times - BT Family | Service part / kit | buy | |
| 1000-1500 | Electric Frying Pan or Wok | Service part / kit | buy | |
| 112-0319 | Piston Standard | 3 | Service part / kit | buy |
| 112-0328 | Piston .5mm Oversize | 3 | Service part / kit | buy |
| 114-0430 | Rod Assy, Connecting | 3 | Service part / kit | buy |
| 114-0450 | Bushing, Connecting Rod | 3 | Service part / kit | buy |
| 115-0541 | Tappet (Begin Spec E) | 6 | Service part / kit | buy |
| 1400-2000 | Battery Charger Up to 3000 DC Converter | Service part / kit | buy | |
| 181-9102 | Bolt, Connecting Rod | 6 | Service part / kit | buy |
| 181-9120 | Camshaft Assy (Begin Spec E) | 1 | Service part / kit | buy |
| 184-0071 | Cover, Solenoid (Begin Spec B) | 2 | Service part / kit | buy |
| 185-2115 | Pin, Pipe | 2 | Service part / kit | buy |
| 185-2233 | Plug | 2 | Service part / kit | buy |
| 185-2387 | Bolt (Spec A-D) | 2 | Service part / kit | buy |
| 185-2388 | Bolt (Begin Spec E) | 2 | Service part / kit | buy |
| 185-2572 | Bolt, Flange | 1 | Service part / kit | buy |
| 185-5486 | Pin, Straight | 2 | Service part / kit | buy |
| 185-5487 | Pin, Straight | 2 | Service part / kit | buy |
| 185-5490 | Cock Assy, Drain | 1 | Service part / kit | buy |
| 185-5502 | Plug (Spec A) | 1 | Service part / kit | buy |
| 185-5523 | Crankcase Breather | 1 | Service part / kit | buy |
| 185-5558 | Screw, Set | 1 | Service part / kit | buy |
| 185-5560 | Key, Feather | 1 | Service part / kit | buy |
| 185-5845 | Plug | 1 | Service part / kit | buy |
| 185-5924 | Ball | 3 | Service part / kit | buy |
| 185-5938 | Washer, Thrust Standard | 2 | Service part / kit | buy |
| 185-5941 | Washer, Thrust Standard | 2 | Service part / kit | buy |
| 185-5942 | Washer, Thrust .2mm Oversize | 2 | Service part / kit | buy |
| 185-5943 | Washer, Thrust .4mm Oversize | 2 | Service part / kit | buy |
| 185-6039 | Plug (Spec A) | 1 | Service part / kit | buy |
| 185-6040 | Plug, Expansion | 1 | Service part / kit | buy |
| 185-6121 | Plug, Expansion | 3 | Service part / kit | buy |
| 185-6354 | Clutch (24V) | 1 | Service part / kit | buy |
| 185-6358 | Spring, Brush (24V) | 4 | Service part / kit | buy |
| 185-6362 | Retainer (24V) | 1 | Service part / kit | buy |
| 185-6365 | Washer, Felt (24V) | 1 | Service part / kit | buy |
| 185-6386 | Ring, Snap (12V) | 1 | Service part / kit | buy |
| 185-6441 | Bearing, Ball (24V) | 1 | Service part / kit | buy |
| 185-6442 | Bearing, Ball (24V) | 1 | Service part / kit | buy |
| 185-6468 | Plug | 3 | Service part / kit | buy |
| 185-6469 | Pin, Pipe | 1 | Service part / kit | buy |
| 185-6470 | Pin, Pipe | 1 | Service part / kit | buy |
| 185-6471 | Plug | 1 | Service part / kit | buy |
| 185-6516 | Tappet (Spec A-D) | 6 | Service part / kit | buy |
| 185-6517 | Rod, Push | 6 | Service part / kit | buy |
| 185-6519 | Gear, Cam | 1 | Service part / kit | buy |
| 185-6520 | Stopper, Camshaft | 1 | Service part / kit | buy |
| 185-6521 | Gear Assy, Idle (Includes Bushing) | 1 | Service part / kit | buy |
| 185-6522 | Bushing, Idle Gear | 1 | Service part / kit | buy |
| 185-6523 | Collar, Idle Gear | 1 | Service part / kit | buy |
| 185-6524 | Collar, Idle Gear | 1 | Service part / kit | buy |
| 185-6525 | Circlip, Idle Gear | 1 | Service part / kit | buy |
| 185-6526 | Shaft, Idle Gear | 1 | Service part / kit | buy |
| 185-6531 | Pin, Piston | 3 | Service part / kit | buy |
| 185-6532 | Circlip, Piston Pin | 6 | Service part / kit | buy |
| 185-6533 | Rod Assy, Connecting | 3 | Service part / kit | buy |
| 185-6534 | Bushing, Connecting Rod | 3 | Service part / kit | buy |
| 185-6535 | Bolt, Connecting Rod | 6 | Service part / kit | buy |
| 185-6536 | Bearing, Connecting Rod Standard | 3 | Service part / kit | buy |
| 185-6537 | Bearing, Connecting Rod .2mm Undersize | 3 | Service part / kit | buy |
| 185-6538 | Bearing, Connecting Rod .4mm Undersize | 3 | Service part / kit | buy |
| 185-6540 | Gear, Crankshaft | 1 | Service part / kit | buy |
| 185-6541 | Key | 1 | Service part / kit | buy |
| 185-6543 | Sleeve, Crankshaft | 1 | Service part / kit | buy |
| 185-6544 | Collar, Crankshaft | 1 | Service part / kit | buy |
| 185-6546 | Bearing, Crankshaft Standard | 1 | Service part / kit | buy |
| 185-6547 | Bearing, Crankshaft .2mm Undersize | 1 | Service part / kit | buy |
| 185-6548 | Bearing, Crankshaft .4mm Undersize | 1 | Service part / kit | buy |
| 185-6549 | Bearing, Crankshaft Standard | 2 | Service part / kit | buy |
| 185-6550 | Bearing, Crankshaft .2mm Undersize | 2 | Service part / kit | buy |
| 185-6551 | Bearing, Crankshaft .4mm Undersize | 2 | Service part / kit | buy |
| 185-6553 | Bearing, Crankshaft .2mm Undersize | 1 | Service part / kit | buy |
| 185-6554 | Bearing, Crankshaft .4mm Undersize | 1 | Service part / kit | buy |
| 185-6555 | Washer, Thrust .2mm Oversize | 2 | Service part / kit | buy |
| 185-6556 | Washer, Thrust .4mm Oversize | 2 | Service part / kit | buy |
| 185-6578 | Cover, Solenoid | 2 | Service part / kit | buy |
| 185-6759 | Washer, Spring (Begin Spec B) | 2 | Service part / kit | buy |
| 185-6856 | Plug | 1 | Service part / kit | buy |
| 185-6857 | Pin, Start Spring | 1 | Service part / kit | buy |
| 185-6873 | Camshaft Assy (Spec A-D) | 1 | Service part / kit | buy |
| 185-7212 | Plug | 1 | Service part / kit | buy |
| 185-7230 | Holder, Brush (12V) | 1 | Service part / kit | buy |
| 185-7231 | Armature (12V) | 1 | Service part / kit | buy |
| 185-7233 | Bearing, Oilless (12V) | 1 | Service part / kit | buy |
| 185-7234 | Gear (12V) | 3 | Service part / kit | buy |
| 185-7235 | Ring, Snap (12V) | 1 | Service part / kit | buy |
| 185-7236 | Collar (12V) | 1 | Service part / kit | buy |
| 185-7237 | Brush, Yoke (24V) | 2 | Service part / kit | buy |
| 185-7238 | Armature (24V) | 1 | Service part / kit | buy |
| 185-7240 | Holder Assy, Brush (24V) | 1 | Service part / kit | buy |
| 185-7245 | Block, Cylinder | 1 | Service part / kit | buy |
| 185-7296 | Gear, Pinion (24V) | 5 | Service part / kit | buy |
| 185-7302 | Block, Cylinder | 1 | Service part / kit | buy |
| 185-7308 | Piston Standard | 3 | Service part / kit | buy |
| 185-7309 | Piston .5mm Oversize | 3 | Service part / kit | buy |
| 185-7310 | Ring Set, Piston Standard | 3 | Service part / kit | buy |
| 185-7311 | Ring Set, Piston .5mm Oversize | 3 | Service part / kit | buy |
| 185-7372 | Block, Cylinder (Includes Parts Marked *) | 1 | Service part / kit | buy |
| 185-7376 | Crankshaft (Includes Parts Marked *) | 1 | Service part / kit | buy |
| 185-7420 | Pin, Straight | 2 | Service part / kit | buy |
| 185-7430 | Bearing, Crankshaft Standard | 1 | Service part / kit | buy |
| 191-2252 | Roller (24V) | 5 | Service part / kit | buy |
| 200-500 | Electric Blanket | Service part / kit | buy | |
| 200-600 | Radio | Service part / kit | buy | |
| 250-750 | Electric Broom | Service part / kit | buy | |
| 300-700 | Refrigerator | Service part / kit | dieselpartscenter $42.24 | |
| 323-1491 | mating pin | Service part / kit | buy | |
| 323-1492 | damaged pin socket | Service part / kit | buy | |
| 350-1000 | Electric Water Heater | Service part / kit | buy | |
| 50-200 | Electric Drill | Service part / kit | buy | |
| 500-1200 | Electric Hair Dryer | Service part / kit | buy | |
| 550-750 | Television | Service part / kit | buy | |
| 600-1000 | Microwave Oven | Service part / kit | buy | |
| 800-1500 | Coffee Percolator | Service part / kit | buy | |
| 800-6548 | Bolt, Hex Socket Head | 2 | Service part / kit | buy |
| 981-0176 | Redistribution or publication of this document, by any means, is strictly prohibited. California | Service part / kit | buy | |
| 981-0181 | Service part / kit | buy | ||
| F1117-0002 | Warranty Manual | Service part / kit | buy | |
| FA-000111222 | Brightness and Contrast Screen | 1 | Service part / kit | buy |
| FA-333444555 | Display Setup Screen | 1 | Service part / kit | buy |
| FA-666777888 | Generator Set and Display Information Screen | 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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Full_load | 4.9 | 3.0 | |
| Full_load | 100% | 2.3 | 0.6 |
| Half_load | 3.0 | 1.8 | |
| Half_load | 50% | 1.3 | 0.35 |
| Prime | |||
| Standby | |||
| Standby | 0% | 0.8 | 0.3 |
| Standby | 0% | 1.0 | 0.3 |
| Standby | 0% | 1.3 | 0.4 |
| Standby | 1% | 1.7 | 0.4 |
| Standby | 25% | 1.0 | 0.27 |
| Standby | 50% | 1.3 | 0.35 |
| Standby | 75% | 1.7 | 0.44 |
| Standby | 100% | 2.1 | 0.55 |
Available documents
Spec sheetInstallation manualOperator's manualParts manualService manual