New Holland LS190.B Skid Steer Loader Parts Catalog (2006–2011, NA)

This illustrated parts catalog covers the New Holland LS190.B Skid Steer Loader (NA). It pairs numbered views with parts tables so you can identify replacement parts, check quantities, and see what comes with an assembly or kit.

Figure Search and PDF Contents

Text search and bookmarks — Search by figure number, part number, or description. Bookmarks open the main sections, including the figure index and parts listings. Numbered callouts are embedded in the illustrations, and dense views are easier to read when enlarged.

The download contains one printable English PDF with 481 pages. That total includes a front insert, a figure-search guide, a five-page figure index, a blank separator, a 14-page English/French/Spanish abbreviation guide, and a two-page metric-to-inch hardware reference.

Illustrated Engine, Drive, and Loader Parts

These selected parts breakdowns show the main systems. The catalog also illustrates optional equipment such as rear fenders and the cab jack kit.

• Engine and fuel systems — Four-cylinder engine breakdowns cover mounting, the block and cylinder head, valve mechanism, crankshaft and pistons, intake and exhaust, lubrication, cooling, and fuel injection.
• Hydrostatic drive — Tandem and gear pumps, pump-to-manifold plumbing, single- and two-speed drive motors, the two-speed valve, final drive, and transmission centering.
• Hydraulics and brakes — Separate standard, high-flow, and pilot-control layouts show boom and bucket plumbing, control valves and seal kits, hydraulic brakes, filtration, and front and rear auxiliary circuits.
• Electrical equipment — Cab, engine, main, chassis, two-speed, and pilot-control harnesses, plus the diagnostic connector, optional advanced instrument cluster, backup alarm, and remote jump-start hardware.
• Cab and operator controls — Cab and door assemblies, windows and wiper, heating and air conditioning, hand and foot linkages, pilot joysticks, seats, and seat belts.
• Chassis and attachments — Floor and mounting plates, boom, boom lock and float kit, counterweight, bucket styles and cutting edges, and pallet fork.

The catalog suits parts-counter staff, shop mechanics, and experienced owners who can match the installed equipment to an illustrated breakdown.

Matching Parts to the Installed Configuration

The catalog uses 224 distinct figure numbers. Each view’s callouts lead to the corresponding part numbers, quantities, and application notes. The tables flag optional parts, list replacement numbers and kit contents, and identify components that are unavailable separately.

The Rexroth AA22 breakdown cross-references the internal gear pump, right- and left-hand rotary groups, relief valves, hydraulic control, and locking elements. For auxiliary hydraulics, the high-flow figures distinguish alternative valve assemblies and identify the associated harness and cooler arrangements for pilot-control machines.

Some shared figures list LS190, LT190, or LT190.B components alongside LS190.B entries. For example, the foot-control valve table gives separate LS190.B and LT190 entries. Follow the model qualifier and match the installed assembly before ordering.

Parts Lookup and Service Scope

The electrical views identify harness assemblies and show the diagnostic connector’s numbered pin positions. Use the appropriate service manual for circuit assignments, troubleshooting, torque values, pressure testing, and repair procedures. Follow the machine safety procedures for work involving a raised boom, stored hydraulic pressure, heavy components, or electrical isolation.

Examples of Cylinder Dimensions and Coupler Threads

The boom-cylinder table lists a 1-3/4 in. diameter piston rod. The bucket-cylinder table identifies a three-piece seal for a 2-1/2 in. piston and lists it in the cylinder seal kit.

The connect-under-pressure coupler table distinguishes 1.062"-12 female O-ring and 1/2"-14 NPTF female connection threads. Both thread options are listed for male and female quick-coupler ends.