New Holland C190 Compact Track Loader Parts List Manual (P/N 66211408d)

• Coverage: New Holland C190 Compact Track Loader, North American configuration, January 2006 onward. The 462-page PDF opens with a figure index and Adobe Ctrl+F instructions for jumping directly to a numbered illustration.
• Engine, cooling, and fuel: Exploded parts figures for the four-cylinder engine, engine mounting, cylinder block and head, valve mechanism, crankshaft, pistons and connecting rods, camshaft, lubrication system, water pump, thermostat, fan drive, radiator, air cleaner, exhaust, fuel tank, injection pump, injectors, filters, lift pump, and injection lines.
• Hydrostatic drive and undercarriage: Tandem-pump assemblies, standard and high-flow gear pumps, the Rexroth A22 pilot-control pump, right- and left-hand rotary groups, drive motors, return manifold, two-speed valve, hydraulic brake system, transmission centering, final-drive frames, rollers, idlers, sprockets, and rubber-track options.
• Loader hydraulics and controls: Standard and high-flow boom and bucket circuits, hand-, foot-, and pilot-control layouts, control-valve breakdowns and seal kits, boom and bucket cylinders, mounting-plate hydraulics, reservoir and filter, connect-under-pressure couplers, and front and rear secondary auxiliaries.
• Electrical and operator systems: Starter, alternator, battery cables, cab, engine, main, and chassis harnesses, optional advanced instrument cluster, diagnostic service plug for use without the instrument cluster, two-speed and pilot-control harnesses, backup alarm, horn, turn signals, remote jump-start equipment, beacon, heater, air-conditioning, and cab components.
• Chassis and attachments: C190 chassis and boom, boom lock and float kit, hydraulic mounting plate, several bucket types, cutting edges, spill guard, pallet fork, cab doors and windows, seats, restraint hardware, control handles, counterweight, and model and safety decals.
• Parts-ordering detail: Each illustrated group is paired with reference numbers, New Holland part numbers, quantities, descriptions, replacement and supersession notes, “if used” qualifiers, and “not serviced separately” status. Repair kits and service subassemblies are identified, including special repair tool P/N 86539432 for the female flat-face breakaway coupler.

This publication is built for parts identification and repair planning. The alternating exploded-view and table format lets a technician follow an assembly from the machine-level layout down to individual brackets, hoses, fittings, seals, fasteners, and service kits. It is especially useful where the same C190 system appears in more than one configuration.

The catalog separates standard and high-flow hydraulics, conventional and pilot controls, hand- and foot-control valves, two-speed components, main harnesses with or without an in-cab service/run switch, optional instrument-cluster equipment, heater-only and air-conditioned cabs, and right-side throttle arrangements. Those distinctions should be checked before selecting a pump, valve, hose, harness, control component, or cab part.

The engine section goes well beyond external service items. It identifies the cylinder block, bedplate stiffener, cylinder head and valve gear, crankshaft bearings and thrust washers, piston and ring kits, flywheel, camshaft gears, oil pump, oil cooler, water pump, thermostat, and fan drive. Fuel coverage follows the system from the tank and optional shut-off kit through the lift pump, filter, injection pump, rigid supply and return lines, injector pipes, and injectors.

The figures make it possible to confirm what is included with an assembly, what must be ordered separately, and which earlier part number has been replaced before a repair order is placed. The closing reference section also defines catalog abbreviations in English, French, and Spanish and provides common metric-to-inch hardware conversion guidance.

Hydrostatic and loader sections provide some of the strongest configuration detail in the catalog. Representative figures include the drive-motors-to-manifold layout, Rexroth A22 pump with separate right- and left-rotation groups, pilot-control-to-pump routing, standard and high-flow boom hydraulics, control-valve seal-replacement kits, and the diagnostic-plug connector view. The parts tables also distinguish male and female breakaway couplers, matching halves, dust caps, adapters, repair kits, and components available only as a complete assembly.

Several entries flag details that matter during repair. Cylinder-head gasket selection is tied to measured piston protrusion, so the two listed gasket versions should not be treated as interchangeable. The fuel shut-off kit specifically calls for protective conduit where the line passes beneath the oil-fill tube, identifying a routing point where abrasion could damage the hose. The hardware reference permits limited metric and inch substitution for some through-hole applications but warns against mixing metric and inch nuts, studs, bolts, or tapped threads.

Scope: This is an illustrated parts catalog, not a workshop repair manual. It does not provide step-by-step removal and installation procedures, troubleshooting tests, torque sequences, hydraulic test methods, or electrical wiring schematics. Use it to identify the correct configuration and part number; use the appropriate service manual for repair procedures and adjustment specifications.

Before servicing the boom, mounting plate, cylinders, or hydraulic lines, lower or mechanically support the lift arms, relieve stored hydraulic pressure, and isolate electrical power according to approved workshop procedures.