Komatsu PC1250-8R Parts Book PDF – SAA6D170E-5 Engine Parts Catalog J10001-Up

Description

Komatsu PC1250-8R Parts Book – LEPBP128R1

This is the full parts catalogue for the Komatsu PC1250-8R hydraulic excavator, applying to machine serial numbers J10001 and up and to the SAA6D170E-5 engine from engine number 610926 and up. The publication carries document number LEPBP128R1 and is issued in English. Every figure in the book is drawn from Komatsu’s own parts listing, so the reference numbers, part numbers, quantities and serial-number breakpoints you see are the ones used when ordering.

Because the PC1250-8R Parts Book PDF covers both the engine assembly and the machine assembly, it is the single reference document for anyone rebuilding, servicing or reordering on this excavator. Engine group figures run from the cylinder head down to the muffler drain piping; machine group figures run from the revolving frame out to the bucket and side shrouds.

File Details

• Manual type: Parts Book / Parts Catalogue
• Brand: Komatsu
• Model: PC1250-8R
• Engine: SAA6D170E-5
• Machine serial number: J10001 and up
• Engine serial number: 610926 and up
• Document number: LEPBP128R1
• Language: English
• File format: PDF

Chapters Covered

The book is split into a large engine parts section followed by the machine sections. Each entry below corresponds to a page-reference group in the catalogue.

Engine Related Parts

• Cylinder Head
• Water Housing and Front Hanger
• Rocker Arm Housing Cover / Head Cover Related Parts
• Air Intake Manifold and Connection
• Air Piping and Spill Tube
• Air Cleaner and Indicator Piping / Air Cleaner Attachment
• Exhaust Manifold
• Turbocharger Mounting and Lubricator / Turbocharger Water Piping / Turbocharger Inner Parts
• Cover (Exhaust Gas Recirculation Valve Less) and Heat Shield
• Muffler Attachment
• Thermostat and Thermostat Housing
• Cylinder Block and Cylinder Block Accessory (Grease Fitting Tube, Blowby Sensor)
• Front Cover and Front Cover Mounting
• Idler Gear
• Cam Follower Cover
• Oil Filler
• Oil Pan and Suction Tube
• Flywheel Housing and Flywheel
• Engine Mounting
• Crankshaft
• Vibration Damper
• Piston and Connecting Rod
• Crank Puller (Flange Type)
• Camshaft
• Rocker Arm Housing and Rocker Lever
• Camfollower and Push Rod
• Oil Pump
• Oil Filter and Oil Filter Piping
• Oil Cooler and Oil Cooler Mounting / Accessory
• Fuel Injection (Supply Pump and Coupling, Common Rail Mounting, Supply and Return Piping, Wiring and Lubricator, Common Rail Inner Parts)
• Fuel Injection Pump Bracket / Piping / Drive
• Fuel Filter and Piping, Fuel Priming Pump, Fuel Pre-Filter, Additional Fuel Filter
• Fuel Injector
• Fuel Return
• Fuel Controller and Piping
• Cable Support – Engine Wiring, Injector Wiring, Chassis Related Wiring
• Water Pump and Air Vent / Water Connection
• Corrosion Resistor
• Alternator (90A / 60A) and Freon Compressor, Belt Tension and Safety Cover, Alternator Drive
• Starting Motor Mounting and Starting Motor (11kW) Inner Parts
• Electrical Wiring
• Air Compressor Mounting and Piping / Air Compressor Inner Parts
• Name Plate and Caution, Priming Pump Control Switch
• Muffler Joint Parts, Muffler Mounting, Muffler Drain Piping, Muffler Ejector Piping, Exhaust Pipe and Rain Cap
• Water Separator and Precleaner

Machine Related Parts

• Engine Mount and Exhaust (including Sandy and Dusty Terrain Spec)
• Power Takeoff (P.T.O. Assembly, Oil Check Gauge, Suction Lines, Delivery Lines, Lubrication Lines, Flywheel Piping, Coupling)
• Cooling System – Radiator, Oil Cooler, Shroud, Fan Mount and Fan Motor Piping, Condenser, After Cooler, Reserve Tank, Fan Guard, Mount and Tank Piping
• Fuel Tank (with Quick Charge) and Fuel Line (Clamp, Water Separator)
• Electrical System – Battery (Wet), Starting Harness, Main Harness, Battery Case, Working Lamp and Circuit Breaker, VHMS Sensor Harness
• Air System – Air Piping, Air Tank, Horn Valve, Air Valve, Mounting Parts
• Hydraulic System – Hydraulic Tank, Return Filter, Relief Valve, Main Valve (No.1, No.2, No.3), Swing Control Valve, No.1 / No.2 / No.3 Pump, Gear Pump, Suction Line, Delivery Line, Oil Cooler Line, Return Line, Drain Line, Boom Line, Valve Delivery Piping (Arm, Bucket, Travel, Straight Travel, Swing), O.L.S.S. Line, Solenoid Valve Lines, Shuttle Valve Line, PPC Lines (Joint, Deck, Valve, Pump Delivery, Accumulator, Travel, Arm, Boom and Bucket, Swing, Heavy Lift)
• Main / Revolving Frame – Revolving Frame, Boom Foot Pin
• Operator’s Compartment and Control System – Operator’s Seat, Seat Belt, Seat Rear Cover, Cab (Quarry Spec), Front Window, Roof Window, Door, Door Lock, Open Lock, Wiper and Room Lamp, Electrical, Accessories, Bolts, Wiring, Monitor System, Cover, Duct, Floor Mat, Lower Wiper, Window Washer, Top Guard (Level 2), Air Conditioner, Fire Extinguisher, Floor Frame assemblies, Floor Mount, Switch and Cover
• Guard – Hood, Frame, Left and Right Side Covers, Partition, Cover (Machine Cab)
• Main / Revolving Frame and Related Parts – Handrail, Step, Rear View Mirror, Counterweight (17400 KG), Weight Mounting, Under Cover (Revolving Frame)
• Swing Circle and Related Parts – Swing Circle, Swing Machinery (Front and Rear), Swing Motor Elbow Group, Swivel Joint
• Travel and Lower Piping – Travel Piping (Center Frame Side, Motor Side)
• Under Carriage – Track Shoe (Double Grouser with Hole, 700mm Wide), Center Frame, Track Frame (L.H. and R.H., Front Idler, Idler Cushion, Track Roller, Carrier Roller, Full Guard, Final Drive, Travel Piping, Under Cover, Travel Piping Cover, Travel Motor Guard), Step
• Work Equipment – Boom (7.8M) with Boom Pin, Lubrication, Working Lamp, Arm Cylinder Line, Bucket Cylinder Piping (Bottom, Center, Top), Boom Hose, Blind Parts; Boom Cylinder and Boom Cylinder Piping; Arm Cylinder; Arm (3.4M) with Lubrication and Bucket Cylinder Piping; Bucket Cylinder; Bucket Link; Bucket 6.7M3 2280mm (Horizontal Pin Type) and Side Shroud
• Mark and Plates – Operating and Caution Plates (English / Indonesian), Tag Plates, Anti-Slip, Sift Pattern ISO, Lifting Point Decal, Boom Mark Plate, Caution Plate (Front Full Guard), Air Cleaner Double Element Plate
• Accessory – Spare Parts (50A / 90A), Cap and Overall, Tool
• Miscellaneous – Grease Pump, Left Side Step, Right Side Step, VHMS Registration, Flushing and Blind Parts
• Service Kit and Component Parts – Air Cleaner, Final Drive (Shaft and Hub, 1st and 2nd Carrier, 3rd Carrier and Sprocket), Shoe Bolt and Nut Service Kit, Track Link, Rubber Antenna, Main Pump (No.1, No.2 and No.3), Gear Pump, Boom / Arm / Bucket Cylinder, Swivel Joint, Swing Motor, Fan Motor, Travel Motor, Main Valve, PPC Valve, Safety Valve, Relief Valve, Check Valve, Grease Pump, Line Filter, Oil Filter, Solenoid Valve, Pilot Relief Valve, Breather, Air Conditioner Unit Assemblies

What that structure means in practice is that the PC1250-8R Parts Book is not just an engine catalogue with a machine index bolted on. The engine group is broken all the way down to component level – pistons, bearing metals in standard and oversize, connecting rod assemblies, cylinder block accessories, fuel injection inner parts, turbocharger inner parts, alternator and starting motor inner parts – while the machine group goes the other way, from complete assemblies (swing machinery, travel motor, main valve, boom, arm, bucket) down to the individual flange, O-ring, bolt and shim that hold them together. Every one of those entries carries the Komatsu part number and the quantity required, and the engine pages are tied to the 610926-and-up serial range so you can confirm which version of a part belongs on a given build.

Who This Parts Book Is For

Machine owners running a PC1250-8R in quarry, mining or mass earthmoving work will use this book every time a hydraulic hose, a track roller, a final drive gear or a bucket tooth needs replacing. Workshops rebuilding the SAA6D170E-5 engine will use the engine half of the book to identify the correct cylinder head parts, the right piston ring set, the correct bearing metal size and the specific fuel injection components for that serial range. Parts departments can search a part number and confirm which assembly figure it belongs to before placing an order, which is far faster than describing a component over the phone.

Having the exact Komatsu part number in hand matters on a machine of this size. A wrong O-ring, a mismatched flange or an incorrect bearing metal size can stall a repair for days, and on a 125-tonne excavator a single day of downtime is expensive. The book gives you the reference figure, the item number on that figure and the corresponding part number, so the component you order is the component that was designed for the machine.

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Instant PDF Delivery

The Komatsu PC1250-8R Parts Book is delivered as a downloadable PDF the moment payment clears. There is no shipping, no waiting on a courier and no physical volume to keep on a shelf. Open it on a laptop in the workshop, on a tablet on the machine, or on a phone at the parts counter. Print the figures you need and take them to the bench – the engine exploded views and the hydraulic piping diagrams work well as printed sheets that can be marked up, stained and replaced without worrying about damaging an original book.