Part of the Kubota Parts Manuals.
This is the Kubota parts catalog for the D950-BBS-1 diesel engine, publication 07909-59000, dated 1982. It is the official parts breakdown for locating and ordering exact replacement components for this engine.The catalog is organized by assembly group, with an exploded figure and a matching parts list for each: crankcase, oil pan, cylinder head, gear case, main bearing case, head cover, inlet manifold, valve and rocker arm, camshaft, piston and crankshaft, flywheel, governor, injection pump, nozzle holder, water pump, dynamo, starter, alternator, and air cleaner. Each list gives part numbers, quantities, and standard, oversize, and undersize options for pistons and bearings.With it you can identify the correct part number before you buy, match oversize pistons or undersize crank bearings during a rebuild, and avoid ordering the wrong component for the D950.
What's Inside This Kubota D950-BBS-1 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Engine Stop Lever, Nozzle Holder, Speed Control Plate, Governor, Fuel Camshaft, Injection Pump, Air Cleaner | |
| Cooling System | Water Flange, Water Pump | |
| Engine | Crankcase, Oil Pan, Cylinder Head, Gear Case, Main Bearing Case, Head Cover, Inlet Manifold, Valve, Rocker Arm, Camshaft, Piston, Crankshaft, Flywheel | |
| Electrical System | Dynamo, Starter, Alternator | |
| Decals & Accessories | Name Plate | |
| Other Components | Attached Parts Group 1, Attached Parts Group 2 |
Every system also includes a figure and a parts list.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Piston Size (Standard) | STD | p. 29 |
| Piston Size (Oversize) | +0.5 | p. 29 |
| Crank Pin Metal Size (Standard) | STD | p. 29 |
| Crank Pin Metal Size (Undersize) | -0.2 | p. 29 |
| Fuel Over Flow Pipe Dimension | 12x2000mm | p. 52 |
| Fuel Pipe Dimension | 13x2000mm | p. 52 |
| Nozzle Holder Adjusting Washer Thickness | 1.00mm | p. 59 |
Kubota D950-BBS-1 Common Problems This Manual Covers
Worn pistons or bearings at rebuild
A high-hour D950 that burns oil usually needs oversize pistons or undersize crank bearings. The Piston, Crankshaft Group lists the standard and +0.5 piston and the -0.2 and -0.4 crank pin metal options.
Manual Section: Piston, Crankshaft Group p. 28Hard starting from injector wear
When the engine runs rough or is hard to start, the nozzle holders often need service or new adjusting washers. The Nozzle Holder group lists the holder parts and washer thicknesses.
Manual Section: Nozzle Holder p. 58No-start traced to the starter
A no-crank condition often ends in a starter rebuild or replacement. The Starter group provides the exploded view and part numbers for the starter assembly.
Manual Section: Starter p. 61Fuel delivery and injection pump parts
Power loss and stalling frequently trace to the fuel side, where worn injection pump components restrict delivery. The Injection Pump group lists its replacement parts.
Manual Section: Injection Pump p. 55Overheating from a failing water pump
Cooling neglect and a worn water pump lead to overheating. The Water Pump group gives the pump parts breakdown.
Manual Section: Water Pump p. 46Governor surge or stall
Governor-related stalling can appear as the engine changes load. The Governor Group lists the governor components.
Manual Section: Governor Group p. 37Frequently Asked Questions
What does this manual cover?
It is the Kubota D950-BBS-1 parts catalog, publication 07909-59000 from 1982, with exploded views and parts lists for every assembly group of the engine.
Does it list piston and bearing sizes?
Yes. The Piston, Crankshaft Group shows the standard and +0.5 oversize piston and the -0.2 and -0.4 undersize crank pin metals for a rebuild. p. 28
Will it help me order the right injector parts?
Yes. The Nozzle Holder group lists the holder components and adjusting washer thicknesses from 1.00 mm to 1.95 mm for setting nozzle height. p. 58
Does it include part numbers I can order from?
Yes. Every group pairs an exploded figure with a parts list giving Kubota part numbers and quantities, so you can identify the exact component before ordering.
What do I get after purchasing this Kubota D950-BBS-1 manual?
You receive a 71-page searchable PDF ready for immediate download. The file works on any device, allowing you to view diagrams on your phone or tablet while working in the shop. There is no shipping delay.
Can I print this manual?
Yes. The PDF contains no DRM restrictions, meaning you can print any page or section needed for your workbench. It is compatible with any standard printer.
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