Need a part number for your L185 tractor without guessing? This factory Kubota L185F Parts Catalog (OEM #100K0128) runs 152 pages, crankcase through 3-point linkage. Its 71 pages of numbered exploded-view assemblies span engine, transmission, hydraulic system, electrical, fuel, and chassis, each diagram cross-referenced so you pin down the exact part before calling the counter. Separate sections break out the injection pump, governor, nozzle holder, differential systems, power steering, control valve, and relief valve, one clean lookup per major subsystem. Crankshaft assembly: 22.22 lb; cylinder head assembly: 22 lb, OEM weights catalogued exactly as Kubota listed them, so your order comes back right. Order the wrong part and you lose a week. Search by assembly name, bookmark straight to the subsystem, and place the right order the first time.
What's Inside This Kubota L185F Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Crankcase | 5-7 | Oil Pan, Cylinder, Filter, Oil, Gauge |
| Cylinder Head | 8-9 | Hook, Engine, Stud, Nut, Washer, Spring, Cap |
| Gear Case | 10-11 | Pipe, Water, O Ring, Pin, Start Spring, Gasket, Bolt |
| Bearing Case | 12-13 | Assy Case, Bearing, Bolt, Washer, Gasket, Cover, Seal |
| Breather | 14-15 | Assy Breather, Plate, Element, Oil Shield, Joint, Breather Pipe, Clamp |
| Air Cleaner | 16-17 | Body, Cover, Baffle, Nut, Wing, Assy Band, Air Cleane |
| Muffler [L185] | 18-19 | Muffler, Pipe, Gasket, M-flange, Band, Bolt, Nut, Washer |
| Muffler [L185Dt] | 20-21 | Muffler, Flange, Gasket, M-flange, Stud, Nut, Band, Bolt |
| Valve,Rocker Arm | 22-23 | Valve, Rocker Arm, Inlet, Exhaust, Spring, Retainer, Valve Sprin, Collet |
| Head Cover | 24-25 | Cylinder Head, Decomp Hole, Decomp Shaft, Decomp Wire, Oil Filler |
| Camshaft | 26-27 | Tappet, Rod, Push, Assy Camshaft, Plug, Pin, Gear |
| Piston,Crankshaft | 28-29 | Piston, Crankshaft, Piston Ring, Connecting Rod, Crank Pin, Crank Shaft, Crank-Gear, Oil Slinger |
| Flywheel | 30-31 | Assy Flywheel, Gear, Ring, Pin, Straight, Bolt, Washer |
| Nozzle Holder | 32-33 | Pipe, Fuel Over Flow, Cover, Injection Pump, Gasket, Pump Cover, Bolt |
| Fuel Camshaft | 34-35 | Assy Pump, Injection, Shim, Injection Pump, Stud, Nut, Washer |
| Speed Control Plate | 36-37 | Assy Apparatus, Fuel, Spring, Screw, Set, Nut, Lock, Gasket |
| Governor | 38-39 | Spring, Start, Lever Governor, Lever, Fork, Shaft, Fork Lever |
| Dynamo | 40-41 | Assy Dynamo, Bolt, Washer, Nut, Support, Stay, Fan, Shaft |
| Radiator | 42-43 | Assy Radiator, Cap, Pipe, Water Over Flow, Net, Whistle, Steem |
| Name Plate | 44-45 | Label, Oil, Instruction |
| Starter | 46-48 | Frame, Drive End, Plug, Expansion, Bush, Bolt, Set, Lever |
| Injection Pump | 51-52 | Plate, Adjust, Bolt, Spring, Deliv.valve, Gasket, Valve, Delivery |
| Front Wheel Drive | 57-58 | Arm, Knuckle Lh, Knuckle Rh, Key, Feather, Bolt, Washer, Spring |
| Front Axle | 59-60 | Front Wheel [L185] |
| Battery | 61-62 | Support, Air Cleaner, Stay, Air Support, Band, Cushion, Label |
| Steering | 69-70 | Assy Steering, Case, Gear, Shaft, Sector, Ball Nut, Bearing, Thrust Ball |
| Bonnet | 73-74 | MIRROR, Lamp, Seat |
| Mirror,Lamp | 75-76 | Assy Lamp, Head, Body, Lens, Lamp, Reflector, Rubber, Washer |
| Transmission Case | 79-80 | Gear Drive System 1, Gear Drive System 2, Gear Drive System 3, Speed Change System 1, Speed Change System 2, Differential System 1, Differential System 2 |
| Gear Drive Syster 3 | 85-87 | Countershaft, Cir-clip, Bearing, Gear, Shaft Pto, Clutch, Coupling |
| Change Lever | 92-93 | Hand Accel |
| Rear Axle | 98-99 | Axle Case |
| Brake | 102-103 | Fender [U.S.A], Electical 1, Electical 2, Electical 3 |
| Brake Pedal | 104-105 | Fender [U.S.A], Electical 1, Electical 2, Electical 3 |
| Fuel Tank | 114-115 | Assy Tank, Fuel, Filter, Gasket, Sponge, Gauge, Clip, Pipe |
| Fuel Filter | 116-117 | Assy Pipe, Fuel, Clip, Pipe, Joint, Fuel Pipe, Cover, Filter |
| Oil Pressure 1 | 118-119 | Pump, Oil Pressure, Gear, Spur, Washer, Claw, Nut, Gasket |
| Oil Pressure 2 | 120-122 | Valve, Control, Joint, Spool, Lever, Spool Drive, Assy Valve, Relief |
| O/P Cylinder | 123-125 | Gasket, Plug, Stud, Bolt, Washer, Seal, Nut |
| O/P Lift Arm System | 126-128 | Liner, Cylinder, Piston, Oil Pressure, O Ring, Ring, Back Up, Rod |
| Oil Filter 2 [Section Parts] | 129-130 | Assy Cover, Filter, Cover, Assy Valve, Safety, Valve, Plug, Spring |
| Oil Pressure Pump | 131-132 | Key, Woodruff, Seal, Oil, Ring, Support, Seering |
| Control Valve | 133-134 | Spring, Valve, Chek, O Ring, Seet, Poppet, Plug, Seat |
| Relief Valve | 135-136 | Blank, Seet, Poppet, Spring, Plug, Shim, O Ring |
| Power Steering | 139-140 | Assy Power Steering, Washer, Spring, Nut, Pin, Straight, Stud, Arm |
| Flow Priority Valve | 141-142 | Assy Valve, Flow Prio, O Ring, Assy Pipe, Assy Connector, Nipple, Pipe, Joint |
| Oil Pressure | 145-146 | Pump, Key, Woodruff, Boss, Spline, Washer, Claw |
| Steering Joint | 147-148 | Joint, Steering, Cover, Rubber, Washer, Spring, Nut |
| 3-Point Linkage [3P] | 149-151 | Assy Link, Top, Link, Nut, Top Link, Joint, Top Link Rh, Top Link Lh |
| Accessories and Service Parts | 152 | Wrench, Filter, Piston, Cir-clip, Packing, Comp, Knocle, Assy Wheel Plate |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Assy Case, Gear Weight | 9.35 lb | p. 11 |
| Assy Cylinder Head Weight | 22 lb | p. 9 |
| Assy Muffler Weight | 19.8 lb | p. 19 |
| Assy Crank Shaft Weight | 22.22 lb | p. 29 |
| Cylinder Liner Weight | 1.276 lb | p. 6 |
| Assy Air Cleaner Weight | 3.08 lb | p. 17 |
| Assy Radiator Weight | 15.4 lb | p. 43 |
| Battery Weight | 13.2 lb | p. 62 |
| Clutch Housing Weight | 91.3 lb | p. 64 |
| Washer, Adjusting Thickness (100) | 1.00 MM | p. 50 |
Kubota L185F Common Problems This Manual Covers
Kubota L185F hydraulic or transmission fluid spec confusion, can't confirm correct type for combined system p. 118
Check the Accessories and Service Parts list on page 152 for the fluid part numbers approved for this tractor. Because the L185F shares one sump between the hydraulic and transmission circuits, fluid has to suit both. The Oil Pressure sections start at page 118, and the Oil Pressure Pump diagram sits on page 131; use them to pin down the filter and drain components before you order fluid or filters.
Manual Section: Oil Pressure 1Can't identify correct seal or gasket part number for the hydraulic lift cylinder p. 123
Open the O/P Cylinder diagram on page 123. Locate your cylinder in the exploded view, then trace each seal position to the parts number list on the facing page. Verify the part numbers against your tractor's serial number range noted on the Name Plate section, page 44, before ordering. Seal kits for the lift arm system are separately listed in the O/P Lift Arm System section, pages 126-128.
Manual Section: O/P CylinderUnsure which overrun clutch or PTO driveline components to order when implement won't stop spinning p. 79
Go to the Transmission Case diagram on page 79; it covers the full drivetrain, PTO drive components included. Note the exact part numbers for the PTO driveline parts shown in the Gear Drive System sections. The Accessories and Service Parts page (152) may carry overrun clutch assemblies as a catalog item, so look there before sourcing from the drivetrain views.
Manual Section: Transmission CaseNeed part number for oil filter but unclear which filter fits the hydraulic versus engine circuit p. 129
Find the engine oil filter circuit in the Oil Pressure sections, pages 118-122; the hydraulic-side filter is a separate assembly in Oil Filter 2, pages 129-130. Lay the two exploded views side by side and note how the part numbers differ. These filters are not interchangeable, so confirm each number in the parts-list column before you order.
Manual Section: Oil Filter 2 [Section Parts]Control valve or relief valve part numbers needed but can't tell which diagram covers which assembly p. 133
The Control Valve exploded view and parts list are on pages 133-134; the Relief Valve is a separate section on pages 135-136. Look up both diagrams and match your valve body by shape and port count visible in the illustrations. Cross-reference with the Flow Priority Valve on pages 141-142 if your tractor is equipped with power steering, since that circuit uses its own priority valve assembly with distinct part numbers.
Manual Section: Control ValveFront axle seal or wheel drive component part number unclear, unsure which diagram applies to this model p. 57
Confirm your tractor variant first (L185 two-wheel drive versus L185DT four-wheel drive), since the drivetrain assemblies differ between models. Front axle drive components sit in the Front Wheel Drive section, pages 57-58, and the Front Axle chassis diagram begins on page 59. The Name Plate section on page 44 tells you where to read the serial number that settles which variant and part numbers apply.
Manual Section: Front Wheel DriveFrequently Asked Questions
Does this Kubota L185F manual help me pick the right fluid for the hydraulic and transmission?
Yes. On the L185F the hydraulic and transmission circuits share one sump, so the fluid has to suit both systems. The manual's Oil Pressure sections start at page 118, and the approved fluid and filter part numbers are listed in the Accessories and Service Parts list on page 152. Use those pages to confirm the correct type before ordering fluid or filters.
Where do I find the hydraulic lift cylinder seal and gasket part numbers in this manual?
The O/P Cylinder exploded diagram is on page 123; locate your cylinder in that view and trace each seal position to the parts-number list on the facing page. Seal kits for the lift arm system are listed separately in the O/P Lift Arm System section on pages 126-128. Verify the part numbers against your tractor's serial-number range from the Name Plate section on page 44 before ordering.
Does this manual cover both the L185 two-wheel-drive and the L185DT four-wheel-drive front axle parts?
Yes, but the drivetrain assemblies differ between the L185 (two-wheel drive) and the L185DT (four-wheel drive), so confirm your variant first. Front-wheel-drive components are in the Front Wheel Drive section on pages 57-58, and the Front Axle chassis diagram begins on page 59. The Name Plate section on page 44 shows where to read the serial number that settles which variant and part numbers apply.
Are the engine and hydraulic oil filters the same part on the L185F?
No, they are not interchangeable. The engine oil filter circuit is in the Oil Pressure sections on pages 118-122, while the hydraulic-side filter is a separate assembly in Oil Filter 2 on pages 129-130. Lay the two exploded views side by side and confirm each part number in the parts-list column before you order.
How quickly can I access this Kubota L185F manual after buying?
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Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy text throughout. The text is consistently crisp and easy to read. Diagrams and illustrations are clear raster images, meaning they may show pixelation when zoomed in, but labels remain readable. The pages are clean with no scan artifacts, stains, or skewed content. Please note that several pages are largely blank, serving as placeholders for diagrams, and one page explicitly states "Image Not Available."
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