Komatsu GD655-5 Motor Grader Parts Catalog PDF – Serial B40001 and Up – Full Illustrated Parts Manual

Description

Komatsu GD655-5 Motor Grader Parts Catalog – Serial B40001 and Up

This is the complete illustrated parts catalog for the Komatsu GD655-5 motor grader, covering machines from serial number B40001 onward. Across 390 pages, every major assembly is broken down into its component parts using exploded-view illustrations and indexed part-number tables, so you can identify any part on the machine, confirm the correct number, and order with confidence.

Whether you are replacing a failed hydraulic cylinder seal kit, verifying the correct bolt for a blade lift bracket, cross-referencing a transmission valve body component, or simply cataloguing a machine for a resale or refurbishment, this parts catalog gives you the assembly-level breakdown that a workshop manual alone cannot. Each figure is keyed to a parts table with index numbers that match the callouts in the illustration.

File Details

• Manual type: Illustrated Parts Catalog
• Machine: Komatsu GD655-5 Motor Grader
• Serial number range: B40001 and up
• Language: English
• Page count: 390
• File format: PDF

Chapters Covered

• Engine
• Cooling System
• Fuel Tank
• Electrical System
• Power Train
• Hydraulic System
• Frame and Related Parts
• Operator’s Compartment and Control System
• Guards and Covers
• Wheels and Related Parts
• Work Equipment
• Marks and Plates
• Auxiliary Parts and Tool
• Field Repair Service Parts

Engine (A-Series Figures)

The engine section opens the catalog with the air intake connector tube, heat shield, exhaust muffler and mounting bracket, breather hose, oil pan drain, flywheel housing, 90Amp alternator and its installation brackets, 5.5KW starting motor, engine wiring harness, engine drain hose, engine mounting brackets and cushions, and the engine accessory gear and hardware. Exploded views show the cylinder block, oil pan, flywheel housing faces, and mounting points, with callouts cross-referenced to part numbers.

Cooling System (C-Series Figures)

Radiator assembly with oil cooler, fan guard, cooling fan motor (shown across multi-page exploded breakdowns including valve assembly, spool, spring, and O-ring details), air condenser, mounting brackets, and cooling piping. If you are chasing a leak, replacing a fan motor component, or verifying the correct elbow and clamp for a coolant hose run, this is where the numbers are.

Fuel Tank (D-Series Figures)

Fuel tank assembly with cap, gauge, hoses, elbows, clips, and mounting hardware, shown as an exploded illustration with a matched parts table so the tank, sender, and fittings can be identified individually.

Electrical System (E-Series Figures)

Batteries and battery box with 60Amp or 90Amp alternator configurations, relay and fuse box, battery cables, disconnect switch, main wiring harness, rear wiring harness (including engine, transmission, and differential lock sub-harnesses), head lamps, front and rear working lamps, horn, and wiring clamps. The wiring harness figures show the physical routing and connector callouts, while the tables give part numbers for each clip, grommet, and harness section.

Power Train (F-Series Figures)

Propeller shaft with companion flange and hardware, transmission assembly breakdowns including clutch assembly, shaft and cylinder, pistons, snap rings, transmission case covers, control valve body and spool components, transmission oil filter and cartridge, torque converter and transmission mounting brackets and cushions, front axle support and housing, tie rod and ball studs, leaning cylinder, rear axle differential lock components, final drive center case, bevel gear set, differential assembly, torque shaft, tandem drives (A and B), tandem tube, sprocket chain, parking brake caliper, and final drive case. The exploded views in this section are particularly detailed, covering bearing, shim, and gear callouts.

Hydraulic System (H-Series Figures)

Hydraulic tank with cap, strainer, gauge, and related fittings; main control valve with 9-spool and 10-spool configurations shown across multi-page inner-part breakdowns covering valve bodies, spools, springs, plugs, O-rings, and relief valves; hydraulic pump with piston pump and gear pump sections, cooling fan pump, and pump-related brackets; steering hydraulic piping with hoses, elbows, and clips; floor valve and mounting; front frame valve with or without blade accumulator; blade cylinder piping, articulate cylinder piping, and the full hydraulic piping schematics for ripper configuration with differential lock – including piston pump to tank, priority valve, charge valve, parking brake valve, fan motor piping, LS piping (in three parts), and differential lock piping. The piping pages name each hose by colour code (white, red, orange, grey, blue, yellow, green, brown) so lines can be traced end to end.

Frame (J-Series Figures)

Front frame assembly, rear frame, and hinge pin with bearing, bushing, shim, seal, and retainer details. Front and rear frame exploded views include pin, washer, bolt, and grease fitting callouts.

Operator’s Compartment and Control System (K-Series Figures)

Operator’s seat with upper assembly, cover, foam kits, suspension, armrests, and seat belt; ROPS cab with low height and KOMTRAX – including cab structure, inner trim, cab wiring harness, air pulling device, front glass, wipers front and rear, LHS and RHS doors, door locks, door open locks, seals and sheets, door lock striker, air conditioner duct, KOMTRAX antenna, glass windows and bracket, rearview mirror, floor mat, window washer, air conditioner unit and mounting, air conditioner piping, cab heater piping, radio, floor frame with 9-spool valve (steering post cover, rods, levers, switches, blade float piping, steering piping, monitor, steering wheel, platform, console box, wiring harness, 12V converter, gear shift lever, console cover, accelerator pedal, inching and brake pedals, brake valve, air conditioner ducting and related parts, operator’s seat mounting, transmission controller, KOMTRAX controller, wiring harness clamps, window washer hose, air ducts, platform related parts, controller cover, air conditioner drain hose clips), brake control with brake accumulator, related parts, brackets, adjust cylinder, and mounting parts, plus brake piping for the main runs and the secondary piping.

Guards and Covers (M-Series Figures)

Engine hood with pre-cleaner auto dust eject (hood, side covers, head cover, grille, mask and radiator cover, rear combination lamp, air cleaner related parts shown for two serial splits – #B40001-B40023 and #B40024- , wiring harness), front frame covers (floor cover, front cover), under cover, tool box, ladder (LHS and RHS step assemblies), and pusher with weight.

Wheels and Related Parts (S-Series Figures)

Tire and rim assemblies for 17.5-25-12PR tubeless tires, broken out by corner: front RHS, front LHS, rear LHS, rear RHS. Each figure covers the tire, wheel rim, side ring, lock ring, O-ring, valve assembly, stem, core, seat, adapter, cap, plus mounting bolts and washers for the rear wheels.

Work Equipment (T-Series Figures)

Drawbar and circle with support, holder, shims, studs, nuts, guides, plates, and mounting hardware; blade and circle lifter with brackets, bushings, yokes, caps, holders, seals, rods, pistons, and cases; blade (3.7m and 4.3m width, 19mm thickness, overlay, edge height 152mm) with end bits, edges, bolts, nuts, washers, brackets, and plugs; power tilt cylinder, blade lift cylinder, blade shift cylinder, drawbar shift cylinder, and articulate cylinder – each with full inner-part breakdowns including cylinder, rod, head, seals, piston, ring, wear ring, and nut; ripper with inner parts for blade angle cylinder and mounting parts (bracket, link, pin, bushing, seal, support, rod, shank, point); ripper shank; ripper shank tooth (point tooth type); ripper scarifier tooth; circle revolving unit shown in two parts with cover, worm wheel, shaft, plate, disc, spring, bushing, collar, shim, O-ring, case, worm, bearing, housing, and motor assembly.

Marks and Plates (U-Series Figures)

Three mark and plate groups are provided: Portuguese pictorial type (1/3, 2/3, 3/3), Spanish-English (1/3, 2/3, 3/3), and a caution plates section. These pages give the safety decals, warning plates, Komatsu logo marks, lift and tie-down points, and ROPS/FOPS nameplates used across the machine.

Auxiliary Parts and Tool (V-Series Figures)

Spare parts (cartridge assembly) and the general tool set that ships with the machine – tool bag, wrench set, wrenches, socket, handle, driver, hammer, filler gauge, bar, tire inflation pressure gauge, pump assembly, nozzle, cartridge, specialty wrench, bolt, nut, and hose.

Field Repair Service Parts (Y-Series Figures)

Service kit parts listing, with kits K01 through K15 covering transmission, transmission control valve, transmission piping, leaning cylinder, steering cylinder, front blade cylinder, ripper cylinder, blade lift cylinder, blade side shift cylinder, power tilt cylinder, drawbar side shift cylinder, scarifier cylinder, articulate cylinder, and seal kits. Each kit lists the individual O-rings, seal rings, dust seals, back-up rings, wear rings, piston rings, and rod packings included – valuable when you only need to reseal rather than replace an entire cylinder.

Why This Parts Catalog Matters

Motor graders are complex machines with dozens of assemblies that share similar-looking components. Without a proper parts catalog, ordering a seal, shim, or bracket often becomes a guessing game – and a wrong part means downtime, return shipping, and a machine sitting idle. This catalog ties every callout number to a part number against the exact serial number range, so the part you order is the part that fits. The exploded views also make it possible to see how an assembly goes together before you take it apart, which reduces the risk of losing a shim, misrouting a hose, or damaging a seal during reassembly.

For a workshop, a fleet manager, or an owner-operator maintaining a GD655-5, this is a reference you will reach for whenever a repair is on the schedule. The assembly-level diagrams in the engine, hydraulic, powertrain, and work equipment sections are detailed enough to support full teardown planning, while the parts tables in the electrical, cab, and guards sections let you chase down individual clips, grommets, lamps, and fasteners.

How It Is Delivered

IMAGES PREVIEW

This Komatsu GD655-5 motor grader parts catalog is supplied as a PDF file that downloads instantly after payment. There is no shipping, no waiting for a disc, and no courier to chase. Open it on a laptop in the workshop, a tablet on the machine, or a phone at the parts counter – the file is printable if you prefer a paper copy for the toolbox, and the whole 390-page document travels with you on any device that reads PDFs.