Komatsu PC350LC-8 Excavator Parts Manual PDF – S/N A10001-Up Illustrated Parts Catalog

Description

Komatsu PC350LC-8 Excavator Parts Manual – Serial Number A10001-Up

This Komatsu PC350LC-8 parts manual is the illustrated parts catalog for the PC350LC-8 excavator from serial number A10001 upward. It follows the way the machine is actually built – engine, cooling system, fuel tank and lines, electrical system, hydraulics, main and revolving frame, operator’s compartment and control system, guards, swing circle, travel and lower piping, undercarriage, work equipment and the marks and plates set. Every assembly is presented as an exploded illustration with numbered callouts, and each callout resolves to a Komatsu part number, a description and the quantity used. That means a full rebuild, a reseal job or a single wear item can be ordered correctly the first time instead of guessed at from a photograph or a measurement.

File Details

• Manual type: Illustrated parts manual (parts catalog)
• Brand: Komatsu
• Model: PC350LC-8
• Serial number coverage: A10001-Up
• Language: English
• Page count: 785 pages
• File format: PDF

Chapters Covered

• ENGINE – cylinder head, rocker lever, valve cover, crankcase breather, exhaust manifold, turbocharger mounting (new release and original release), turbocharger oil piping and turbocharger, air intake manifold cover, air intake heater and connection, air transfer connection, exhaust connection, cylinder block access hole cover and oil drain connection, cylinder block coolant plugs, torque converter oil cooler plug, coolant heater and starting aid plug, cab heater plugs, engine coolant vent, front gear housing and cover, front gear train accessory cover, oil pan and suction tube, flywheel and mounting, crankshaft, crankshaft vibration damper, piston and connecting rod, camshaft, oil level gauge, lubricating oil pump, lubricating oil filter and piping, lubricating oil cooler, fuel injection piping, fuel piping, fuel filter piping and fuel filter, fuel injector and connector covers, fuel pump mounting and fuel pump, fuel transfer pump, fuel inlet fitting, engine control module and sensors, engine control module piping, water pump and water inlet connection, thermostat and housing, fan drive pulley, fan drive belt and tensioner, coolant piping, cooling fan and mounting, alternator belt tensioner and drive belt, alternator mounting and 60 A alternator, starting motor mounting and starting motor, heat shield, oil level sensor, engine control module wiring harness, flywheel housing, engine lifting bracket and engine assembly
• ENGINE RELATED PARTS – damper, pump and tube, engine mount, engine drain hose, air cleaner connection, air cleaner connection with pre-cleaner, exhaust muffler, fuel pre-filter, air cleaner, precleaner inner parts and preventive maintenance clinic parts
• COOLING SYSTEM – radiator and oil cooler (split by machine serial number), cooling shroud, aftercooler and condenser, radiator piping, cooling stay and sound sheet, and air cooler piping and sub-tank
• FUEL TANK AND RELATED PARTS – fuel tank, fuel lines pre-filter and related parts, and fuel lines hose and clamp
• ELECTRICAL SYSTEM – battery and battery mounting, starting harness clamp, main harness clamp (three parts), working lamp, additional work lamp, additional rear work lamp, horn, travel alarm, and the rear view monitoring system in one-camera and two-camera versions
• HYDRAULIC SYSTEM – hydraulic tank, main valve connecting parts in two parts plus the 1-actuator valve bracket and service valve plug, the full 24-part main valve breakdown, main pump connecting parts, main pump by serial number range, suction line, delivery line with in-line filter, oil cooler line, return line, drain line, boom line valve and boom lines, boom line bracket and clamp, arm and bucket line, attachment lines, multi pattern valve ISO/backhoe, travel line, swing line, LS lines, solenoid valve, selector valve, accumulator, return filter, hydraulic piping filter, PPC valve, pressure switch, PPC main line hose and straight travel
• MAIN/REVOLVING FRAME AND RELATED PARTS – revolving frame with deck guard, revolving frame for super long front (SLF), and boom foot pin
• OPERATOR’S COMPARTMENT AND CONTROL SYSTEM – operator seat in suspension, air suspension and rigid versions, seat belt, top guard, front guard, half guard, front full guard, floor mat, rain visor, sun visor, window washer, air conditioner compressor and connections, cab and window for vandalism protection, cab interior parts, cab floor frame and travel control, foot rests, levers and valves, consoles, armrests, air conditioner unit and hoses, PPC pipings and valves, rear camera cable, floor mounts and model selection connector switch
• GUARD – hood, hood net, machine cab frame, cab side doors, cab partitions, cab covers, battery case, handrail, mirrors, counterweight mounting, counterweight 7,372 kg (16,253 lb), counterweight for super long front 8,417 kg (18,557 lb), revolving frame under covers and the straight travel (STS) frame section
• SWING CIRCLE AND RELATED PARTS – swing circle, swing machinery, swing motor connecting parts, swing motor breakdown, swivel joint connections and swivel joint inner breakdown
• TRAVEL AND LOWER PIPING – travel piping, final drive, and travel motor in three sections
• UNDERCARRIAGE – front idler, idler cushion, track roller, carrier roller, track shoe triple grouser in 600 mm, 700 mm, 800 mm and 850 mm widths, track frame for under cover, track frame additional step, track frame under cover, track frame center guard and track frame full roller guard
• WORK EQUIPMENT – boom and top pin, boom arm cylinder line, boom lubricating line, boom bucket cylinder line, boom cylinder pin and working lamp, boom for additional piping, boom cylinder, arm cylinder, arms in 2.2 m, 2.6 m, 3.2 m and 4.0 m versions, arm bucket link, bucket cylinder hoses and pins, additional piping, arm valve for additional piping and bucket less
• MARKS AND PLATES – decal and plate sets in English and Spanish, lubrication standard chart, cab windshield lock operation, Komatsu logo for boom and counterweight, load rating chart, battery caution, coolant decal, ISO/backhoe multi pattern valve decals, arm caution plate, front and top guard warnings, service instruction air cleaner, accumulator safety decal, straight travel decal, swing or back-up warning and 12 V power source
• ACCESSORY – spare parts for Latin America spec and tool for Latin America spec

IMAGES PREVIEW

Read together, these chapters give a technician or parts counter a complete, machine-specific map of the PC350LC-8. The value is not just the part numbers – it is the way each number is tied to a position in an illustration, so a hose, a fitting, a seal kit, a bracket or a complete cylinder can be identified by where it sits on the machine rather than by trying to describe it over the phone. Assemblies that are commonly rebuilt, such as the main pump, the main control valve, the swing motor, the travel motor, the final drive, the boom and arm cylinders and the front idler, are broken down to internal component level with their own seals, rings, springs, plates and bolts listed separately.

Serial Number Breaks You Need to Check

The catalog is not a single flat list – Komatsu split several major assemblies by machine serial number, and the correct drawing depends on which machine you own. The radiator and oil cooler change at A10129; the main pump, main pump connecting parts and suction line change at A10789; the front idler, track roller and carrier roller change at A10187; the multi pattern valve changes at A10142; and internal swing motor components change at A10006. Gas springs and strikers on the cab guards also change at A10009. Checking the serial number plate against these break points before ordering is the difference between a part that bolts straight on and a part that comes back.

What Is Inside Each Exploded View

Every figure carries a reference number and a parts list with item numbers that match the callouts on the drawing, followed by the Komatsu part number, the description and the quantity required. Assemblies shown include cylinder head and rocker lever components, turbocharger mounting and oil drain piping, front gear housing and gear train, crankshaft and main bearing sets in standard and oversize, piston and connecting rod, camshaft, oil pan and suction tube, fuel injection and fuel supply piping, water pump and thermostat housing, cooling fan drive, alternator and starting motor mounting, hydraulic tank internals, the main control valve in 24 sections, main pump internals in 11 and 12 sections, suction, delivery, return, drain, boom, arm, bucket, travel, swing and LS lines, solenoid and selector valves, the accumulator, return and piping filters, PPC valves, the swing circle and swing machinery, swivel joint internals, travel motors and final drives, idlers, rollers, track shoes, track frames and guards, the boom, arms, bucket linkage and the full cylinder range with service kits.

Who This Komatsu PC350LC-8 Parts Manual Is For

It suits equipment owners maintaining their own machine, independent repair shops working on Komatsu excavators, parts departments that need to cross-check a number before quoting, and rebuilders restoring a PC350LC-8 to working condition. Because it covers the machine from serial A10001 onward and separates the later revisions, it stays useful across the production run rather than only matching one build.

Order the Correct Part the First Time

With this Komatsu PC350LC-8 parts manual PDF you can identify assemblies and components across the entire machine, confirm the part number and quantity before ordering, check whether your serial number falls before or after a design change, and plan a rebuild with the correct seals, rings, bearings and fasteners in hand. Getting the number right matters – a wrong seal kit, a mismatched pump component or an incorrect hose assembly costs downtime, freight and a second teardown, and on a machine this size that adds up fast. The manual arrives as an instant PDF download after payment, with no shipping and no waiting, and it opens on a laptop, tablet or phone in the workshop, on site or at the parts counter. Print the figures you need for the job and keep the file for the next one.