Komatsu D51EX-22 D51PX-22 Parts Catalog PDF – Serial B10001-UP Crawler Dozer

Description

Komatsu D51EX-22 & D51PX-22 Parts Catalog – Serial B10001-UP

This Komatsu D51EX-22 D51PX-22 Parts Catalog PDF is the complete illustrated parts reference for crawler dozers from serial number B10001-UP. Whether you are ordering replacement components, verifying a part number before purchase, or rebuilding a system after a failure, this catalog gives you the exploded views and itemized part listings you need to identify exactly what fits your machine. It covers the D51EX-22 and D51PX-22 models with their respective undercarriage and blade configurations.

File Details

• Manual Type: Illustrated Parts Catalog
• Brand: Komatsu
• Models Covered: D51EX-22, D51PX-22
• Serial Number Range: B10001-UP
• Language: English
• File Format: PDF
• Page Count: 564 pages
• Document Reference: VEPB1130 and related figure references (A1103-A2A6, A1109-A2A1, A1115-A2B3, and more)

Chapters Covered

The catalog is organized by major assembly groups, each with its own set of exploded-view illustrations and itemized part number tables. The sections include:

• Engine Assembly (A-series): Cylinder head, rocker lever, crankcase breather, valve cover, exhaust manifold, turbocharger oil piping, turbocharger kit and mounting, turbocharger, air intake connection, air intake manifold, exhaust connection, coolant radiator connection, cylinder block, gear cover, rear gear housing, rear gear train accessory drive mounting, flywheel and mounting, oil pan, vibration damper, crankshaft, connecting rod and piston, valve tappet, camshaft, engine oil filler and oil level gauge bracket, oil level gauge, lubricating oil pump, lubricating oil cooler, lubricating oil filter, fuel injector connector covers, fuel injection piping, fuel injector, fuel piping, fuel filter piping, fuel filter, fuel pump and mounting, water pump, coolant inlet connection, thermostat and coolant connection, fan drive mounting, fan drive, belt tensioner, starting motor mounting, starting motor, engine control module, wiring harness, flywheel housing, engine lifting bracket, and engine assembly.
• Engine Related Parts (B-series): Engine accessories, air cleaner unit and group, air cleaner hose and band groups, pre-cleaner assemblies (ejector and bowl type), rain cap assembly, exhaust and muffler groups (standard and European specifications), muffler group, exhaust stack (standard and European specifications), exhaust cover, muffler drain, engine oil pan drain line, engine mounting brackets and crankcase breather mount group, crankcase breather line, engine mounting brackets, engine cushion mounts, fuel filter bracket, belt guards, heat shield, alternator group (60A), damper assembly main pump, alternator inner parts, and 3D navigator mounting, wiring harness, and sealing kits for various serial number breaks.
• Cooling System (C-series): Cooling system overview, heat exchanger, heat exchanger seals, heat exchanger mounting brackets, coolant recovery tank, fan group and fan speed sensor, fan guards, radiator shroud, cooling system piping for air charger cooling lines, engine coolant lines (1/3, 2/3, 3/3), fan supply line, and fan return line.
• Fuel Tank and Related Parts (D-series): Fuel tank for serial breaks, fuel tank cover, fuel level sensor, fuel tank mounting, fuel line piping, fuel lines, fuel pre-filter, and fuel lines and filter with water separator.
• Electrical System (E-series): Batteries, electrical wiring battery cables (standard and with battery disconnect switch), engine wiring harness, chassis wiring harness, nose guard wiring harness, and back-up alarm.
• Power Train and Final Drive (F-series): Final drive hub and planetary gear (LH and RH), final drive carrier assembly (LH and RH), final drive travel motor and teeth (LH and RH), and final drive mount.
• Hydraulic System (H-series): Hydraulic oil tank complete assembly (various serial breaks), hydraulic oil tank access covers, hydraulic oil tank mounting hardware, hydraulic control valve complete assembly, control valve elbows and connectors (4-spool and 5-spool), control valve mounting assembly, hydraulic pump complete assembly, HST pump assembly (11 parts), fan pump (4 parts), joint group, charge pump mounting, charge pump assembly, pump mounting hardware, HST motor left hand (2 parts), HST motor right hand (2 parts), fan motor (3 parts), control valve 4-spool (5 parts), control valve 5-spool (6 parts), quick drop valve, PPC valve and inner parts, relief valve, electric lever assembly, hydraulic piping for pump lines, charge line, suction line, work equipment line, drain line (3 parts), HST travel line, PPC lines, charge filter, motor control hoses, motor elbow group, solenoid valve and accumulator, oil cooler by-pass valve connections, oil cooler by-pass valve assembly, solenoid valve block (2 parts), dozer lines, lift cylinder lines, angle cylinder line (2 parts), tilt cylinder line (2 parts), ripper lines, ripper cylinder and hoses, hydraulic cylinder lift, hydraulic cylinder angle, hydraulic cylinder tilt, hydraulic cylinder ripper, rear hydraulic lines for rescue winch (2 parts).
• Main Frame and Related Parts (J-series): Main frame, main frame mounting, equalizer bar, pivot shaft, and suspension lubrication and pins.
• Operator’s Compartment and Control System (K-series): Operator seat (reclining fabric and leather, standard and hi-back), air suspension seat and inner parts, seat belts, cab complete assembly, cab doors and latches (LH and RH), door bumpers and windows, door open lock brackets and latches, cab front and rear window glass and seals, cab window glass and sash (LH and RH), cab roof mounted air conditioner unit, air conditioner unit assembly for various serial breaks, cab air conditioner heater piping, condenser assembly, mounting brackets, wiring harness, cab under seat heater parts and sub heater, cab door wipers (LH and RH), cab door mounting hardware, cab electrical (switches, room lamp, wiring harness), cab electrical (front and rear wipers), cab window washer hoses, cab radio add-on, cab cassette for Japan and North America, cab inside cover, cab rear view mirror, cab plugs and outside seals, cab roof mounted air conditioner duct, cab air conditioner cover, cab fuel control, cab travel control, cab travel lock lever, cab blade control, cab blade lock lever, cab rear attachment cover, cab console, cab brake pedal, cab decelerator pedal, cab controller, cab wiring harness controls, cab battery relay and relay box, cab dashboard, dash panel and switches, dashboard wiring, panel mount and cover, less vandalism protection, floor cover, frame side cover, cab add-on parts, arm rest, KOMTRAX for standard and Japan, work lamps, floor mat, ROPS complete assembly, ROPS inside cover, ROPS mirror, ROPS plugs and outside seals, ROPS rear cover, ROPS less air conditioner, ROPS with sub heater (open ROPS), ROPS fuel control, ROPS travel control, ROPS travel lock lever, ROPS blade control, ROPS blade lock lever, ROPS rear attachment cover, ROPS console, ROPS brake pedal, ROPS decelerator pedal, ROPS controller, ROPS wiring harness controls, ROPS battery relay and relay box, ROPS dashboard, panel and switches, dashboard wiring, panel mount and cover, less vandalism, floor cover, frame side cover, cab add-on parts, arm rest, KOMTRAX, work lamps, vandalism protection instrument panel, air conditioner lines, drive belt and mounting, heater joint group, heater hose piping, drive belt and mounting with canopy, heater joint group with canopy, heater hose piping with canopy, extinguisher, bland PPC piping group, floor mount suspension, ripper control unit, ripper control group, ripper PPC piping group, winch control for rescue, handrail group, window washer hoses, tank mounting, wiring, tank, and related parts for various serial breaks.
• Guard (M-series): Radiator guard and grille, radiator guard gas spring, engine hood, front engine hood door, LH side engine hood door, engine hood mounting, engine hood with noise panels, LH side engine hood door with noise panel, and rear cover.
• Undercarriage (R-series): Idler assembly, idler cushion, track roller (single and double, standard and plus type), track roller plate, carrier roller (standard and plus type), track link assembly (single grouser lubricate type, abrasion resistant, plus type, swamp type), track shoe for D51EX and D51PX (various widths and configurations including single grouser, with hole, abrasion resistant, swamp type, plus type), track frame, track frame cover for EX and PX models, track frame roller guards (standard and plus), track frame full roller guard model (standard and plus), and shoe bolt and nut service kit.
• Work Equipment (T-series): Dozer frame, blade link group, center ball, cylinder pins (2 parts), pitch rod fixed (standard, short, long), adjustable pitch rod, blade unit wide, blade group wide, cutting edge group wide, blade unit narrow, blade group narrow, cutting edge group narrow, blade for power angle power tilt dozer, blade for power angle power tilt dozer with pin and lock group, lubrication group, dozer line guards, ripper group, long drawbar group, and hitch.
• Marks and Plates (U-series): Marks and plates (5 parts) in English, Japanese, Portuguese, and Spanish, plus ROPS plate for Germany and Spain.
• Accessory (V-series): Tool box.

This Komatsu D51EX-22 D51PX-22 parts catalog is structured for fast, accurate part identification. Each assembly group opens with a detailed exploded-view illustration that shows every component in its correct position, with reference numbers that correspond to the itemized part number tables. That layout lets you visually confirm the shape and location of a part before you commit to an order, which is especially valuable for complex assemblies like the HST pump, control valve, final drive, and hydraulic cylinders where multiple similar-looking components sit close together. The catalog also documents serial number breaks throughout, so you can see when a part number changed and make sure you are ordering the version that matches your machine. The included sections on marks and plates help you identify decals and safety labels for your region, while the accessory section covers the tool box arrangement. If you maintain, repair, or restore a D51EX-22 or D51PX-22, this catalog is the reference that keeps your parts ordering accurate and your downtime short.

Why This Parts Catalog Matters

Ordering the wrong part costs time and money. A parts catalog removes the guesswork by tying every component to a specific illustration and part number for your serial number range. With the Komatsu D51EX-22 D51PX-22 Parts Catalog PDF, you can confirm that a hydraulic hose, a final drive bearing, a track roller, or a cab door latch is the correct item for your dozer before you place the order. The exploded views also help during disassembly and reassembly because you can see how components relate to one another and what hardware holds them in place. For shops that service multiple machines, having the catalog on hand means you can look up parts for any D51EX-22 or D51PX-22 that comes through the door without waiting on a dealer or digging through outdated paper binders.

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Instant PDF Delivery

This Komatsu D51EX-22 D51PX-22 parts catalog is delivered as an instant PDF download. There is no shipping, no waiting for a physical book, and no risk of a lost package. You can open it on a laptop, tablet, or smartphone, search through the pages, and print the specific illustrations or part tables you need for the job. Whether you are working in the shop, in the field, or at the parts counter, the catalog is available the moment your order is complete.