2001-Later Takeuchi TL126 Track Loader Parts Catalog Collection (P/N PT5-101Z5)

The Takeuchi catalog identifies loader assemblies and their components. The included Isuzu catalog extends that reference to internal engine parts and the engine's fuel, cooling, lubrication, and electrical equipment.

This collection supports parts identification and repair planning. It does not provide step-by-step repair instructions, diagnostic procedures, or an installation sequence for the components shown in exploded views.

Loader Assemblies and Isuzu Engine Parts

• Undercarriage: Separate rubber- and steel-crawler parts listings, with exploded views of track rollers, front idlers, track adjusters, travel devices, and crawler belts.

• Hydraulic components: Serial-specific pump breakdowns, control and pilot valves, travel motors, arm and bucket cylinders, seal kits, and hydraulic piping assemblies.

• Frame and attachments: Main frame, control levers, pedals, arm stoppers, lift-arm components, quick attachment, bucket, and auxiliary-line parts identification.

• Isuzu engine: Illustrated parts lists for the cylinder head and block, crankshaft and pistons, valve train, injection equipment, and cooling and lubrication systems.

• Electrical equipment: Control-box and harness assembly views identifying fuses, relays, sensors, switches, battery connections, starter components, and generator parts.

• Cab and operator station: Seating options, front doors with and without wipers, side windows, canopy, heater, floor-frame hardware, and associated trim.

The catalog is suited to owners, mechanics, and parts staff who can match illustrated assemblies and serial-number notes to the equipment on their machine.

Pump Serial Breaks and Crawler Configurations

The hydraulic pump listings separate S/N 21260001~21260025 from S/N 21260026~. Each version has its own pump assembly and seal-kit listing, with four illustrated breakdowns per version. That distinction helps prevent selecting internal pump parts from the wrong serial range.

Rubber- and steel-crawler differences extend beyond the belts. Separate roller assemblies, sprockets, and arm-stopper hardware are identified, allowing the undercarriage configuration to be checked before replacement parts are ordered.

The hydraulic-device section also breaks down the control-valve blocks, self-level valve, right and left pilot valves, and sub valve. Cylinder illustrations identify rod and piston components alongside their seals, bushings, and retaining parts.

Engine Parts and Electrical Reference

The Isuzu material includes the engine gasket kit, cylinder liners, crankshaft bearings, piston grades, and timing-gear case components. Its injection-equipment listings extend to the governor, feed pump, auto timer, and pump coupling.

Figures such as Crankshaft, Piston and Flywheel, Water Pump and Corrosion Resistor, and Injection Pump connect illustrated components to their parts tables. These are parts-reference drawings; timing adjustment and injection-pump calibration require service documentation.

The machine's Electrical and Control Box illustrations show harness assemblies and component locations. They are assembly views rather than circuit schematics or electrical diagnostic charts.

Ordering Notes and Equipment Options

The introductory guides explain illustration references, assembly hierarchy, quantities, interchangeability marks, and serial-number applicability. The Isuzu guide distinguishes fully interchangeable replacements from substitutions that work in only one direction. Separate numerical indexes support lookup by an existing part number.

Cab listings distinguish wiper-equipped doors and EU seat equipment. Decal layouts, noise-absorbent materials, and painted-color references provide additional identification for trim and finish parts.

For work involving heavy assemblies, raised lift arms, or hydraulic components, consult the appropriate service manual for the required safety and repair procedures.

Examples of Bucket and Pump Identification Details

The standard bucket illustration is labeled 66 IN and corresponds to bucket assembly 08806-22000. This is a size designation for identifying the bucket shown in the catalog.

The hydraulic pump tables distinguish shafts marked 15T and 13T, with different part numbers for the early and later pump assemblies. Those markings can be checked together with the pump's serial-number applicability when identifying a replacement shaft.

PDF Search, Bookmarks, and Page Breakdown

Search and navigation: Many machine parts tables support text search; the engine parts tables and catalog-use instruction text do not. Embedded bookmarks link to machine and engine sections. Small engine-table entries require zooming, while fine print in the decal illustrations remains indistinct when enlarged.

Both catalogs are supplied in one printable, 207-page PDF. The total includes both title pages, the catalog-use instructions, and the parts indexes.