Komatsu WD600-3 Parts Catalog PDF – Serial 50001-Up – Complete Illustrated Manual

Description

This Komatsu WD600-3 Parts Catalog is the complete illustrated parts manual for the WD600-3 wheel loader, covering serial number 50001 and up. It provides the full exploded-view parts breakdown for every major assembly on the machine, from the engine mounting through to the work equipment. Whether you are ordering a replacement part, verifying a part number before a rebuild, or cataloguing the components of a specific serial range, this catalog gives you the exact item numbers, part names, quantities, and serial-number applicability printed by the manufacturer.

The manual covers two engine variants: the SAA6D170E-3B-8 (S/N 310001-UP) and the SAA6D170E-3BC-8C (S/N 310001-UP), along with the -40BC cold-weather specification where applicable. It is organized by system, with each section showing the exploded illustration followed by the parts list. This structure makes it straightforward to identify a component visually, then look up its part number and the serial range it applies to.

File Details

• Manual type: Parts Catalog
• Brand: Komatsu
• Model: WD600-3
• Serial number coverage: 50001 and up
• Language: English
• Page count: 1475 pages
• File format: PDF
• Engines covered: SAA6D170E-3B-8 (S/N 310001-UP), SAA6D170E-3BC-8C (S/N 310001-UP)

Chapters Covered

The catalog is divided into the following major sections:

• B0 Engine Related Parts
• C0 Cooling System
• D0 Fuel Tank and Related Parts
• E0 Electrical System
• F0 Torque Converter and Transmission
• H0 Hydraulic System
• J0 Main/Revolving Frame and Related Parts
• K0 Operator’s Compartment and Control System
• M0 Guard
• S0 Suspension and Wheel Related Parts
• T0 Work Equipment
• U0 Marks and Plates
• V0 Accessory and Tool
• Y0 Service Kit and Component Parts

Engine Related Parts

This is the largest section of the catalog, covering everything from engine mounting parts through to the hydraulic pump suction lines. It includes the engine mounting cushions and hardware, radiator piping, oil cooler and water piping, the torque converter lock-up line, rear harness and engine harness layouts, the propeller shaft, torque converter and mounting parts, P.M. clinic piping, hydraulic pump piping and mounting, delivery lines for the control valve and steering demand valve, brake piping, air conditioner components, air compressor inner parts, heater piping, exhaust system components, and the exhaust temperature sensor. Separate subsections cover the -40BC cold-weather specification variants where they differ.

Cooling System

Covers the radiator assembly in detail, including the core, upper and lower tanks, side plates, gaskets, supports, and shroud. It also includes the radiator mounting parts, water level sensor, drain and engine piping, oil cooler and water piping, lower tank tube and mounting parts, sub-tank piping, fuel cooler elbows, air conditioner piping, fuel piping, and the fan guard. The radiator inner parts are broken down across two subsections for easier navigation.

Fuel Tank and Related Parts

Documents the fuel tank assembly, fuel level sensor, filler cap, strainer, and mounting hardware, along with the fuel lines, filters, and quick-coupler variants. It also covers the engine hood side step and the tank mounting parts, with separate subsections for the -40BC and -50BC cold-weather specifications.

Electrical System

Includes the battery and battery box assemblies (left-hand and right-hand, with vandalism protection and jump-start cable variants), the front and rear harnesses, back-up alarm, head lamps and supports, warning lamp, horn, and the slow-blow fuse mounting. The rear harness section alone spans multiple pages covering the rear frame line, torque converter lock-up line, battery and battery relay line, engine line, transmission line, and oil pan heater line for cold-weather configurations.

Torque Converter and Transmission

This section covers the torque converter assembly, lock-up valve, transmission assembly, and the torque converter block. It includes the transmission case, input shaft, clutch packs, control valve body, solenoid valves, lubrication valve, transfer case, and output shaft. The transmission is broken down across five subsections (bare unit and housing, carrier groups, and case/input), giving item-level detail for every internal component. Separate subsections address the transmission heater, P.M. clinic piping, cap with vandalism protection, rear harness, transmission piping, oil cooler piping, lock-up piping, and emergency steering piping.

Hydraulic System

One of the most extensive sections, covering the hydraulic tank (standard, with emergency steering, with vandalism protection, and with heater), hydraulic main valve (control valve, piping parts, delivery lines for control valve and steering demand valve, tilt cylinder bottom and head lines, lift cylinder line, solenoid valve line, and P.P.C. valve to control valve), steering valve (steering demand valve, relief valve, and various delivery lines), hydraulic pumps (SAL3-80, SAL4-125+100, SAL3-125+32), and the full hydraulic line routing including suction, delivery, drain, cooling, tilt cylinder, lift cylinder, solenoid valve, charge valve, P.P.C. valve, and emergency steering lines. It also covers the diverter valve, stop valve, and all associated fittings, flanges, and mounting hardware.

Main/Revolving Frame and Related Parts

Documents the front frame, rear frame (with power train guard and in-line filter variants), hinge pin for the front and rear frame connection, steering cylinder (cylinder and seal, with P.M. clinic, and cylinder piping), lock and cover, axle support, rear axle support mounting parts, and the remote grease lines for the dump cylinder bottom pin, steering cylinder bottom pin, rear axle support, and plug/fitting grease points. The hinge pin section includes the bearing, seal, shim, and retainer details.

Operator’s Compartment and Control System

Covers the operator’s seat (standard, with joy stick steering, reclining type, with lumbar support, and the mounting bracket, lever, cable, arm rest, switch, panel, and knob details), seat belt variants (78 mm and 50 mm autoroll), the operator’s cab structure including window glass, interior trim (rear and front), upper interior trim and roof pad, front and rear wipers, electrical system, window washer and grommet, cap and door related parts, cab inside sheet, door assemblies (left-hand and right-hand, with door frame, window, regulator, lock, open lock, pad, and grip), front interior covers, cigar lighter and radio bracket, and the air conditioner kit, heater, and duct components. The cab section is particularly detailed, with separate subsections for doors, locks, interior trim, and electrical.

Guard

Includes the bulkhead (standard and with P.M. clinic), bulkhead mounting parts, bulkhead harness, rubber for bulkhead, indicator, front cover, and the P.M. block. The hood section covers the top hood, side covers (upper and lower), supports, radiator baffle, radiator grille, radiator guard, radiator shutter, rear work lamp and combination lamp, radiator cap cover, air intake extension, and the hydraulic tank breather line, washer tank, air conditioner tank and condenser, air compressor piping, and the marks and plates. The ladder section covers the operator’s cab side, engine hood side, rear step, tool box, rails, and related mounting parts. The section also includes the front fender, covers, mirror, and counterweight.

Suspension and Wheel Related Parts

Lists the complete rim and tire assemblies for the WD600-3, including the rim base, side flanges, band, lock ring, driver, O-ring, and valve assembly, with tire options from Bridgestone, Michelin, Toyo, and Yokohama in L4 and L5 tread patterns. The -40BC cold-weather rim specification is also covered.

Work Equipment

Documents the lift cylinder (with several serial number breaks), lift cylinder hydraulic line, dozer and linkage (dozer frame and mounting parts, link, support and trunnion, pin, tilt and pitch cylinder hydraulic piping), blade (standard, less blade, U-blade, pin, link, and supply parts). The blade section includes the cutting edge, end bits, bolts, nuts, and washers, along with the step, plate, and pin details.

Marks and Plates

Provides the complete set of safety decals, instruction plates, and machine markings in English, North American/Puerto Rico, Spanish, Portuguese, Russian, Indonesian, French, and Chinese language variants, along with the ROPS canopy plates in multiple languages. This section is useful when replacing damaged or missing decals.

Accessory and Tool

Lists the spare parts kits (in multiple languages), the general tool kit (with language variants), and the fire extinguisher (with language variants), giving the complete list of on-board tools and accessories supplied with the machine.

Service Kit and Component Parts

This section provides service kits for the major components, including the torque converter, transmission, transmission control valve, hydraulic pumps (steering and switch, torque converter charge and P.P.C., work equipment), lift cylinder, tilt and pitch cylinder, steering cylinder, accumulator, control valve, P.P.C. valve, check valve, and relief valve. Each kit lists the individual O-rings, seals, gaskets, shims, and wear rings included, making it a valuable reference for planning a rebuild or reseal.

What This Parts Catalog Does for You

A parts catalog is only as good as its accuracy, and this one is built around the exact serial number breaks that matter on the WD600-3. Komatsu changed components across the production run, and the catalog flags these changes with serial ranges such as 50001-50092, 50050-50092, 50093-, and so on. That means when you look up a part for a machine in a particular serial range, you are seeing the part that actually fits, not a generic listing that might be wrong.

The exploded diagrams are the other half of the value. Each assembly is drawn with numbered callouts that correspond directly to the parts list on the same page. You can see how a component goes together before you take it apart, and you can identify a part visually even if you don’t know its name. For a machine as complex as the WD600-3, with its torque converter, transmission, hydraulic system, and work equipment, that visual reference is often faster than any text description.

Whether you are a fleet maintenance shop ordering a replacement seal, an independent mechanic rebuilding a steering cylinder, or an owner-operator who wants to understand the machine before a repair, the catalog gives you the information in the same format the manufacturer used. It is a working document, not a coffee-table book, and it is designed to be used with dirty hands and a part in front of you.

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Instant PDF Delivery

This Komatsu WD600-3 Parts Catalog is delivered as a PDF file, available for immediate download after purchase. There is no shipping, no waiting for a CD or a printed binder, and no import fees. You can open it on any device — laptop, tablet, or smartphone — and print the pages you need for the shop floor. The file covers serial number 50001 and up, so it applies to a wide range of WD600-3 machines, and the serial-number breaks are clearly marked throughout.

If you maintain a WD600-3 or work on one regularly, this catalog belongs in your reference library. It is the same information the parts counter uses, organized the same way, and available whenever you need it.