2015 Kubota L48 Tractor, Loader & Backhoe Parts Catalog (P/N 100K0632)
533 Pages • 5.54 MB • Instant, Printable PDF
Kubota Models Covered & Key Technical Specifications
Models: L48; TL1150, TL1150LC and TL1150SG front loaders; BT1100 backhoe
Model Year: 2015
Selected component-specific serial-number breaks:
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L48 hydrostatic transmission (HST): S/N <=51486 / >=51487.
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L48 steering controller: S/N <=51194 / >=51195.
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L48 hydraulic control valve: S/N <=50055 (old type) / >=50056 (new type).
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L48 front/rear electrical wiring and seat: S/N <=52526 (old type) / >=52527 (new type).
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TL1150 loader control valve: S/N <=11731 / >=11732.
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BT1100 backhoe control valve: S/N <=10019 / >=10020.
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BT1100 stabilizer cylinders: S/N <=12381 / >=12382.
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BT1100 inlet/outlet hydraulic hoses: S/N <=11635 / >=11636.
Kubota Manual Features & Content Preview
This factory parts catalog set covers the 2015 Kubota L48 tractor, TL1150, TL1150LC and TL1150SG front loaders, and BT1100 backhoe. Catalog book IDs: 100K0632 (L48), 100K0791 (TL1150), 100A0233 (TL1150LC), 100A0232 (TL1150SG), and 100K0810 (BT1100).
Text search and bookmarks: The five catalogs have searchable text and bookmarks for their component sections. The added dealer-logo page is not searchable. Small callouts in crowded exploded views benefit from zooming.
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Engine and fuel system: Parts breakdowns for the crankcase, cylinder head, injection pump, governor, nozzle holders, and upper/lower gasket kits.
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HST and drivetrain: Internal transmission components, PTO clutch, front and rear differentials, differential-lock linkage, and brake assemblies with illustrated parts tables.
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Hydraulics and steering: Front and side hydraulic pumps, steering controller, steering cylinder, outlet block, swing control block, and related oil lines.
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Electrical components: Alternator, starter, panel board, switches, lighting, and front/rear wiring-harness views with old- and new-type parts listings.
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Front loaders: Separate TL1150, TL1150LC, and TL1150SG breakdowns for booms, buckets, control valves, hydraulic hoses, and cylinder components.
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Backhoe: BT1100 swing frame, dipperstick, bucket linkage, control-valve sections, and left/right stabilizer cylinders, including the optional stabilizer-cylinder kit.
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Chassis and equipment: ROPS/FOPS structures, wheel configurations, three-point linkage, seat assemblies, and optional lighting, horn, drawbar, and tool-box kits.
Suited to mechanics and experienced owners who can match drawing callouts to parts tables and check serial-number applicability when planning a repair.
Engine and Drivetrain Parts
Engine tables distinguish standard and oversize piston/ring options and undersize crankshaft bearings. Gasket-kit pages identify the individual seals and gaskets supplied in the upper and lower kits.
In HST [COMPONENT PARTS], the drawings separate the rotary pump, rotary motor, swash plate, regulator, and valves. Front axle and differential tables list alternative shim and bearing-collar sizes; these are parts-selection dimensions, not adjustment specifications.
Serial Breaks and Parts Interchangeability
The S.No. and I/C columns identify serial applicability and whether replacements are interchangeable, “new for old,” “old for new,” or not interchangeable. This helps check a component's build version before ordering repair parts.
STEERING CONTROLLER [COMPONENT PARTS] separates the controller and seal kits at L48 S/N 51195. Both the replacement controller and seal kit are marked non-interchangeable; the HST assembly and regulator also change at S/N 51487.
Electrical Harnesses and Component Views
The ELECTRICAL WIRING (FRONT) and ELECTRICAL WIRING (REAR) drawings show harness placement, fuses, and related hardware. They are parts-location views, not circuit schematics or electrical troubleshooting charts.
The old/new wiring sections split at L48 S/N 52527. Within the earlier rear-harness section, a separate change at S/N 51663 is marked non-interchangeable.
Loader and Backhoe Variants
The TL1150 and TL1150LC sections include self-leveling valve parts; TL1150SG has its own control linkage and hydraulic-outlet hose layout. The CYLINDER (BOOM) [COMPONENT PARTS] drawings identify rods, heads, pistons, and seal kits.
For BT1100 repairs, the valve tables distinguish spool, relief, lockout, and shuttle-valve components. The optional stabilizer-cylinder kit is listed separately from the original cylinders.
Parts Reference and Repair Limits
More than 100 exploded views support component identification. Parts tables provide quantities, hardware thread sizes, component weights, and applicable replacement notes. The catalog contains no step-by-step repair procedures, hydraulic pressure tests, torque tables, or adjustment instructions.
Lower loader and backhoe attachments and safely relieve hydraulic pressure before structural work.
Combined PDF and Catalog Page Counts
Supplied as one printable, 533-page PDF: L48, 348 pages; TL1150, 36; TL1150LC, 37; TL1150SG, 33; BT1100, 78; and one introductory dealer-logo page. The five “Instructions for Parts Books” pages are already included in the individual catalog counts.
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