Need the exact OEM part number before you waste a trip to the counter or an order online? This Kubota GR2100 Parts Catalog points you straight to it. Across 143 pages, exploded views and numbered parts lists map 17 major systems on the GR2100 Riding Mower, from diesel engine internals (crankcase, piston and crankshaft, injection pump, governor) to the HST drivetrain, front axle, hydraulic lift cylinder, power steering, brakes, and cab components. The HST section splits its component parts across exploded views with interchangeability symbols, so you can tell which sub-assemblies share part numbers. Those interchangeability codes run throughout, letting you cross-reference superseded or regional variants without guessing. Pull the file up on any device, search by keyword, jump to the system you need, and order right the first time.
What's Inside This Kubota GR2100 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Instructions for Parts Books | 1 | - |
| Gr2100 | 2-4 | Engine, Fuel System, Cooling Water System, Electrical System |
| Crankcase | 5-6 | - |
| Oil Pan | 7-8 | - |
| Cylinder Head | 9-10 | - |
| Gear Case | 11-12 | - |
| Head Cover | 13-14 | - |
| Oil Filter | 15-16 | - |
| Dipstick and Guide | 17-18 | - |
| Oil Pump | 19-20 | - |
| Main Bearing Case | 21-22 | - |
| Camshaft and Idle Gear Shaft | 23-24 | - |
| Piston and Crankshaft | 25-26 | - |
| Flywheel | 27-28 | - |
| Fuel Camshaft and Governor Shaft | 29-30 | - |
| Idle Apparatus | 31-32 | - |
| Stop Solenoid | 33-34 | - |
| Injection Pump | 35-36 | - |
| Governor | 37-38 | - |
| Speed Control Plate | 39-40 | - |
| Nozzle Holder and Glow Plug | 41-42 | - |
| Nozzle Holder [Component Parts] | 43-44 | - |
| Fuel Pump Cover | 45-46 | - |
| Dynamo and Pulley | 47-48 | - |
| Dynamo (Component Parts) | 49-50 | - |
| Starter | 51-52 | - |
| Starter [Component Parts] | 53-54 | - |
| Oil Switch and Plug | 55-56 | - |
| Water Flange and Thermostat | 57-58 | - |
| Water Pump | 59-62 | - |
| Fan | 63-64 | - |
| Valve and Rocker Arm | 65-66 | - |
| Inlet Manifold | 67-68 | - |
| Exhaust Manifold | 69-70 | - |
| Air Cleaner | 71-72 | - |
| Muffler | 73-74 | - |
| Piston Kit [Option] | 75-76 | - |
| Upper Gasket Kit [Option] | 77-78 | - |
| Lower Gasket Kit [Option] | 79-80 | - |
| Accelerator Lever | 81-82 | - |
| Fuel Tank | 83-84 | - |
| Water Pipe | 85-86 | - |
| Radiator | 87-88 | - |
| Battery | 89-90 | - |
| Electrical Parts | 91-92 | - |
| HST | 93-94 | - |
| HST [Component Parts] | 95-99 | - |
| Universal Joint/HST Fan | 100-101 | - |
| Rear Wheel | 102-103 | - |
| Brake | 104-105 | - |
| Parking Brake Lever | 106-107 | - |
| Brake Rod | 108-109 | - |
| Speed Change Pedal | 110-111 | - |
| PTO Clutch Control Lever/Wire | 112-113 | - |
| Front Axle | 114-116 | - |
| Front Wheel | 117-118 | - |
| Main Frame/Steering Support | 119-120 | - |
| Engine Support | 121-122 | - |
| Power Steering/Steering Handle | 123-124 | - |
| Control Valve | 125-127 | - |
| Hydraulic Lift Cylinder | 128-129 | - |
| Lift Link | 130-131 | - |
| Hood(Bonnet) | 132-133 | - |
| Panel | 134-135 | - |
| Fender | 136-137 | - |
| Seat | 138-139 | - |
| Label | 140-141 | - |
| Accessories and Service Parts | 142-143 | - |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine: COMP.CRANKCASE weight | 15 kgf (33 lb) | p. 6 |
| Engine: COMP.CYLINDER HEAD weight | 7.1 kgf (15.62 lb) | p. 10 |
| Engine: CARTRIDGE OIL FILTER weight | 0.195 kgf (0.429 lb) | p. 16 |
| Engine: COMP.CRANKSHAFT weight | 6.34 kgf (13.948 lb) | p. 26 |
| Engine: ASSY STARTER weight | 3.1 kgf (6.82 lb) | p. 52 |
| Cooling: RADIATOR ASSY weight | 3 kgf (6.6 lb) | p. 88 |
| Fuel: ASSY PUMP FUEL weight | 0.28 kgf (0.616 lb) | p. 84 |
| Electrical: CABLE BATTERY(+) weight | 0.32 kgf (0.704 lb) | p. 90 |
| Transmission: ASSY JOINT UNIVERSAL weight | 3.7 kgf (8.14 lb) | p. 101 |
| Chassis: REAR WHEEL (GR2100B) weight | 7.95 kgf (17.49 lb) | p. 103 |
| Chassis: WHEEL STEERING weight | 1.4 kgf (3.08 lb) | p. 124 |
| Hydraulic: CONTROL VALVE CARTRIDGE OIL FILTER weight | 0.38 kgf (0.836 lb) | p. 126 |
Kubota GR2100 Common Problems This Manual Covers
Kubota GR2100 early transmission failure and transaxle noise requiring replacement gears and seals p. 95
Check the drivetrain parts diagram on page 95, then work the exploded views to pin down the exact bearings and gears your rebuild needs. Confirm the universal joint assembly matches your serial number; it carries the 3.7 kgf (8.14 lb) weight listed on page 101.
Manual Section: HST [Component Parts]Mower steering feels stiff or left glide steer cable completely snaps during the first spring mowing p. 114
Pull up the front axle chassis parts diagram on page 114 to identify the correct linkage components. Match the steering handle assembly, swap out the worn glide steer cable, and confirm the new steering wheel fits the 1.4 kgf (3.08 lb) spec on page 124.
Manual Section: Front AxleEngine cranks very slowly or completely fails to turn over in cold weather p. 91
Verify the exact battery cable part numbers in the electrical parts section on page 91. Replace corroded positive cables matching the 0.32 kgf (0.704 lb) weight spec from page 90. Locate the correct 3.1 kgf (6.82 lb) starter motor assembly on page 52 if cranking remains weak.
Manual Section: Electrical PartsDeck refuses to lift and control valve leaks hydraulic fluid onto the main frame p. 125
Trace the hydraulic parts diagram on page 125 to pinpoint the control valve O-rings and seals. Order the specific control valve cartridge oil filter once you confirm it meets the 0.38 kgf (0.836 lb) replacement spec on page 126, then reassemble the unit.
Manual Section: Control ValveFrequently Asked Questions
What are the replacement specifications for transaxle seals?
In the HST [COMPONENT PARTS], "SEAL OIL" comes as part number 09500-15307 at 0.006 kgf (0.0132 lb) and 09500-25408 at 0.012 kgf (0.0264 lb). On the Front Axle, the "SEAL OIL" parts are K1253-16370 (quantity 2) and 45403-51280 (quantity 2); the latter weighs 0.02 kgf (0.044 lb).
Does this manual help diagnose a Kubota GR2100 that cranks slowly or won't start in cold weather?
Yes. The Electrical Parts section (page 91) lets you verify the exact battery cable part numbers and replace corroded positive cables. If cranking stays weak after that, the catalog also identifies the correct starter motor assembly (page 52).
How do I find the right steering parts if the GR2100 steering is stiff or a glide steer cable snaps?
Use the Front Axle parts diagram (page 114) to identify the correct linkage and the worn glide steer cable that needs replacing. The Power Steering/Steering Handle section then confirms the matching steering wheel component (page 124).
If the mower deck won't lift or the control valve leaks, what does this manual show?
The Control Valve parts diagram (page 125) lets you pinpoint the control valve O-rings and seals behind a deck that won't lift or a leak onto the main frame. From there you can identify the matching control valve cartridge oil filter (page 126) before reassembly.
What does this manual cover for a transaxle/HST rebuild on the GR2100?
The HST [Component Parts] section runs from page 95 to 99 with exploded views and parts lists so you can pin down the exact bearings and gears a rebuild needs after transmission failure or transaxle noise. You can also confirm the universal joint assembly against your serial number using the Universal Joint/HST Fan section (page 101).
What format is this Kubota GR2100 manual in?
This is a 143-page searchable PDF, ready to download right away. It works on any device, so you can pull it up on your phone while you're under the hood. No shipping, no waiting.
Are there any print restrictions on this Kubota GR2100 manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Document Quality
This document is a scanned PDF with an OCR text layer, allowing you to search and copy the full text content. The main text, including instructions and part lists, is crisp and easy to read throughout. Diagrams and illustrations are clear raster images, with labels that are generally readable, though some pixelation is visible upon close zoom. Pages are clean, free of scan artifacts, stains, or skewed content. All pages contain relevant information, with no notable blank or filler pages present.
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