Download Complete Parts Manual For Caterpillar 326 Excavator | Serial Number - M0137491-12 (en-us) September

Comprehensive parts manual for the Caterpillar 326 Excavator (Serial Number M0137491-12), covering all component specifications, assembly diagrams, and replacement procedures. This expert-level documentation provides detailed illustrations and part numbers for models GWP, D8X, and J7A variants. Essential reference for maintenance technicians, operators, and equipment managers requiring accurate identification and ordering of genuine Caterpillar components. Includes complete breakdowns of hydraulic systems, undercarriage assemblies, engine components, and electrical systems. Dated September, this manual ensures you have current specifications and compatibility information for your 326 excavator fleet.

TABLE OF CONTENTS
GENERAL INFORMATION..
REPAIR ALTERNATIVES.
MAINTENANCE PARTS
INDEX..
MACHINE ARRANGEMENT COMMON AR
DISTRIBUTION AR EXCAVATOR AR OPTION AR-BOOM
OPTION AR-HYDRAULIC.
OPTION AR-LIGHTING.
OPTION AR-LINKAGE
ENGINE ARRANGEMENT.
ENGINE AR..
ENGINE AR-PRIMARY INSTALLATION AR-ENGINE MODULE AR-ENGINE & CEM.
MODULE AR-ENGINE & EXHAUST
BASIC ENGINE
BELT TENSIONER GP. CAMSHAFT GP
COVER GP-VALVE MECHANISM CRANKSHAFT GP. CYLINDER BLOCK AS. CYLINDER BLOCK GP
CYLINDER BLOCK GP-SHORT. CYLINDER HEAD AS.. CYLINDER HEAD GP.
CYLINDER HEAD GP-SHORT
DRAIN GP-ENGINE OIL..
FASTENER GP-DAMPER
FLYWHEEL GP..
HOUSING GP-FLYWHEEL
HOUSING GP-FRONT
JET GP-PISTON COOLING
LIFTING GP-ENGINE
MOUNTING GP-ENGINE
MOUNTING GP-STARTING MOTOR
PAN GP-OIL
PISTON & ROD GP
PISTON GP.
PLUG GP-ENGINE.
PULLEY GP-CRANKSHAFT
PULLEY GP-FAN DRIVE. ROCKER ARM GP
VALVE MECHANISM GP.
LUBRICATION SYSTEM
DRAIN GP-FUMES DISPOSAL FILLER GP-ENGINE OIL.
FILTER & MTG GP-ENGINE OIL... FILTER GP-ENGINE OIL. FILTER GP-FUMES DISPOSAL. GAUGE GP-OIL LEVEL (DIPSTICK)
OIL CHANGE AR-HIGH SPEED PUMP GP-ENGINE OIL
COOLING SYSTEM..
CONNECTION GP-HEATER COOLER GP-ENGINE OIL COOLING GP
FAN GP-SUCTION. LINES GP-COOLING.
LINES GP-OIL COOLER
LINES GP-WATER..
PUMP GP-WATER.
RADIATOR & HYD OIL COOLER
GP
REGULATOR GP-TEMPERATURE SCREEN GP-RADIATOR.
AIR INLET AND EXHAUST SYSTEM.. AIR CLEANER GP.
COOLER GP-EXHAUST (NRS)
ELBOW GP-AIR INLET
INJECTOR & MTG GP-DEF LINES GP-AIR..
LINES GP-DIESEL EXHAUST FLUID
LINES GP-TURBOCHARGER AIR.. MANIFOLD GP-DEF
MANIFOLD GP-EXHAUST
MODULE AR-CLEAN EMISSIONS MODULE AR-DIESEL EXHAUST FLUID...
MOUNTING GP-CEM MOUNTING GP-EXHAUST
PIPE GP-FLEXIBLE EXHAUST PUMP GP-DIESEL EXHAUST FLUID...
SUPPORT GP-EXHAUST..
TANK & MTG GP-DEF.
TANK GP-DIESEL EXHAUST FLUID
TURBOCHARGER GP
VALVE & MOUNTING GP (NRS).
FUEL SYSTEM..
FILTER GP-WATER SEP & FUEL INJECTOR GP-FUEL.
LINES GP-FUEL.
LINES GP-FUEL FILTER
LINES GP-FUEL INJECTION PUMP AR-FUEL TRANSFER PUMP GP-FUEL INJECTION..
PUMP GP-FUEL TRANSFER
RAIL GP-FUEL
TANK & MTG GP-FUEL
M0137491-12
TANK GP-FUEL
VALVE GP-REFUELING.
ELECTRICAL AND STARTING
SYSTEM.
ALARM GP-TRAVEL
ALTERNATOR GP-CHARGING. ANTENNA & MOUNTING GP. BATTERY & MOUNTING GP BATTERY & WIRING GP BLOCK AS-FUSE
CABLE GP-ELECTRICAL CAMERA & MOUNTING GP. CONTROL & MTG GP- COMMUNICATION CONTROL & MTG GP-
ELECTRONIC
TABLE OF CONTENTS
CONTROL & MTG GP-MACHINE. CONTROL AR-COMMUNICATION.. CONTROL AR-MACHINE.
CONTROL GP-COMMUNICATION.. CONTROL GP-ELECTRONIC. CONTROL GP-ENGINE
ELECTRONIC
CONVERTER & MOUNTING GP-
POWER.. ELECTRICAL AR ELECTRICAL GP-DEF
ELECTRONICS AR-MACHINE
ELECTRONICS GP-ENGINE
ELECTRONICS GP-MACHINE
ELECTRONICS GP-MONITOR
FASTENER GP-WIRING HARNESS
GLOW PLUG GP.
GRADE CONTROL AR.
HARNESS AS-BOX.
HARNESS AS-CAB
HARNESS AS-CAMERA.
HARNESS AS-CHASSIS
HARNESS AS-CONSOLE
HARNESS AS-CONTROL
HARNESS AS-ENGINE.
HARNESS AS-FRONT
HARNESS AS-LIGHTING..
HARNESS AS-MONITOR...
HARNESS AS-PLATFORM
SENSOR & MTG GP-BUCKET POSN.
HARNESS AS-PUMP
HARNESS AS-REAR LIGHTING
HARNESS AS-SENSOR.
HARNESS AS-SOLENOID
HARNESS AS-STICK
HARNESS AS-VALVE
HOLDER AS-FUSE INSTALLATION AR
INSTALLATION AR-CAMERA.
NAME
INSTALLATION AR-
COMMUNICATION.
INSTL AR-MACHINE SECURITY SYS
INSTL GP-MACHINE SECURITY
SYS
LAMP GP-DOME
LAMP GP-FLOOD
LIGHTING AR-FLOOD LIGHTING GP-CAB
LIGHTING GP-FLOOD
MODULE GP-CAB WIRING.. MOUNTING GP-CONTROL MOUNTING GP-WIRING
PANEL GP-SWITCH
RELAY GP.
SENSOR & MTG GP-POSITION SENSOR GP-ENGINE.
SENSOR GP-PRESSURE
SENSOR GP-TEMPERATURE. STARTING MOTOR GP-ELECTR SWITCH AS-PUSH BUTTON... SWITCH AS-TOGGLE.
SWITCH GP-DISCONNECT.
SWITCH GP-MAGNETIC SWITCH GP-ROCKER
WIRING & MTG GP- MAIN CON V...
WIRING AR-CONSOLE.
WIRING GP-CAB
WIRING GP-CAMERA.
WIRING GP-CHASSIS
WIRING GP-CONSOLE
WIRING GP-DEF MODULE.
WIRING GP-ENGINE..
WIRING GP-FAN
WIRING GP-FINE SWING
WIRING GP-FRONT
WIRING GP-GRADE CONTROL
WIRING GP-PLATFORM
WIRING GP-SENSOR.
WIRING GP-VALVE.
POWER TRAIN.
DRIVE & MOUNTING GP-FINAL DRIVE GP-FINAL..
FINAL DRIVE & MOUNTING GF
MOTOR GP-TRAVEL
POWER TRAIN AR.. SPROCKET GP
FRAME AND BODY
BOX & MOUNTING GP.
BOX & MTG GP-STORAGE. BOX GP-STORAGE.
BUMPER GP-FRONT
COUNTERWEIGHT & MOUNTING
GP
COUNTERWEIGHT AR.
COUNTERWEIGHT AS.
TABLE OF CONTENTS
COVER AS-SOUND SUPPRESSION
COVER GP
COVER GP-ACCESS
COVER GP-ENCLOSURE COVER GP-HOOD.
COVER GP-SOUND SUPPRESSION
DOOR & MTG GP-ACCESS. DOOR GP-ACCESS
ENCLOSURE AR
FASTENER GP-COUNTERWEIGHT FRAME GP-UPPER.
GEAR & BEARING GP-SWING
GUARD GP-BOTTOM GUARD GP-SWIVEL
HANDHOLD GP
HANDRAIL GP
HOOD & GUARD GP.
HOOD GP-ENGINE
LINER GP-SOUND SUPPRESSION MOUNTING GP-COUNTERWEIGHT. SHEET AS-SOUND SUPPRESSION.. STEP GP
UNDERCARRIAGE.
FRAME AS-UNDERCARRIAGE GUARD GP-TRACK GUIDE GUARD GP-TRAVEL MOTOR
IDLER GP-FRONT
LINK AS-TRACK.
ROLLER AR-TRACK & CARRIER.. ROLLER GP-TRACK CARRIER ROLLER GP-TRACK-SINGLE
FLANGE
TRACK ADJUSTER & RECOIL GP TRACK AR.
TRACK GP.
UNDERCARRIAGE AR.
HYDRAULIC SYSTEM
ACCUMULATOR GP-HYDRAULIC..
CAP GP-PROTECTION CONTROL AR-AUXILIARY. COUPLING GP-PUMP
COVER GP-CONTROL VALVE COVER GP-VALVE END. CYLINDER & LINES GP-BOOM CYLINDER & LINES GP-BUCKET CYLINDER & LINES GP-STICK.. CYLINDER & SEAL GP-BOOM. CYLINDER & SEAL GP-BUCKET.. CYLINDER & SEAL GP-STICK. CYLINDER AR-BOOM..
CYLINDER GP-HYDRAULIC
CYLINDER GP-STICK..
DRIVE & MTG GP-SWING
DRIVE GP-SWING..
ELEMENT & VALVE GP-HYD TANK
FILTER GP-OIL..
GAUGE GP-SIGHT
HYDRAULIC AR.
HYDRAULIC AR-BOOM FLOAT.
LINES AR-BOOM.
LINES AR-QUICK COUPLER
LINES GP-AUXILIARY HYDRAULIC. LINES GP-BOOM..
LINES GP-BOOM CYLINDER.
LINES GP-BUCKET CYLINDER.
LINES GP-CONTROL LINES GP-COUPLER LINES GP-DRAIN. LINES GP-FRONT
LINES GP-HYDRAULIC
LINES GP-PILOT
LINES GP-PUMP
LINES GP-RETURN..
LINES GP-STICK.
LINES GP-STICK CYLINDER. LINES GP-TRAVEL MOTOR. MOTOR GP-PISTON.
MOTOR GP-SWING
MOUNTING GP-MAIN CONTROL VALVE.
PLUG GP-HYDRAULIC LINES PLUG GP-SHIPPING.
PUMP & MTG GP-GEAR PUMP & MTG GP-MAIN HYDRAULIC...
PUMP GP-MAIN HYDRAULIC ROTATING GP-PUMP. SCREEN GP-HYDRAULIC SPOOL GP-VALVE
STEM & SEAL GP-VALVE SWIVEL & MOUNTING GP. SWIVEL GP.
TANK & FILTER GP-HYDRAULIC...
TANK & LINES GP-HYDRAULIC... TANK & MTG GP-HYDRAULIC
TUBE GP-HYDRAULIC VALVE & MTG GP-MAIN
CONTROL
VALVE & MTG GP-SOLENOID VALVE AR-CHECK & RELIEF VALVE AR-MAIN CONTROL. VALVE AS-MANUAL VALVE GP-CHECK
VALVE GP-CHECK & RELIEF VALVE GP-CONTROL
VALVE GP-LOAD CONTROL
VALVE GP-MAIN CONTROL VALVE GP-MANUAL.
VALVE GP-RELIEF
VALVE GP-SHUTTLE
VALVE GP-SOLENOID VALVE GP-SOLENOID & MANIFOLD
VALVE GP-SOLENOID & PRESS REDC.
VALVE GP-SOLENOID & RELIEF
IMPLEMENTS
BOOM & BEARING AS
BOOM AR
BOOM AR-REACH.
BOOM GP
BOOM GP-FORE
BOOM GP-STUB
LINES GP-GREASE.
LINK & MTG GP-BUCKET LINKAGE GP-BUCKET LOCK GP-TRANSPORT STICK AR...
STICK AR-HOE.
STICK GP-HOE
WORK TOOLS
TABLE OF CONTENTS
BUCKET AR-DITCH CLEANING BUCKET AR-GENERAL PURPOSE BUCKET AS-HEAVY DUTY.. BUCKET GP-DITCH CLEANING BUCKET GP-GENERAL PURPOSE BUCKET GP-HEAVY DUTY CONTROL AR-QUICK COUPLER.
EDGE GP-CUTTING PIN GP-BUCKET SIDECUTTER GP.
TIP AS-PENETRATION PLUS TIP GP-PENETRATION PLUS
OPERATOR STATION
AIR CONDITIONER & MOUNTING GP
AIR CONDITIONER GP
ARMREST GP..
BRACKET & MTG GP-CAB BRACKET GP-MOUNTING CAB GP
COMPRESSOR & MTG GP- REFRIGERANT. CONDENSER & MTG GP- REFRIGERANT
CONDENSER GP-REFRIGERANT. CONSOLE GP-OPERATOR.
CONTROL & MTG GP-JOYSTICK CONTROL & MTG GP-PEDAL.. CONTROL GP-HANDLE
NAME
CONTROL GP-JOYSTICK. COVER GP-CAB
DISPLAY GP-MONITOR.
DOOR GP-CAB..
DUCT GP-CAB AIR.
FLOOR MAT GP
GROMMET & MTG GP-WINDOW WASHER
GUARD & MTG GP-CAB..
GUARD AR-OVERHEAD
GUARD GP-FRONT WINDOW..
GUARD GP-OVERHEAD
HATCH GP-ROOF
HOLDER GP-CUP
HORN GP-ELECTRIC
INSTALLATION AR-RADIO
INSTALLATION AR-WIPER
INSTL AR-BUMPER & WASHER LINES
INSULATION GP-CAB.
LATCH GP-WINDOW
LINES GP-AIR CONDITIONER. LINES GP-WASHER LITERATURE GP
MIRROR GP
MIRROR GP-REAR VIEW
MIRROR GP-SIDE VIEW.
MONITOR & MTG GP-OPERATOR MONITOR AR
MOUNTING GP-ANTENNA MOUNTING GP-CAB. MOUNTING GP-RADIO MOUNTING GP-ROPS
OPERATOR AR
PARTS GP-DOOR PEDAL AR-THIRD
PLATE & INSULN GP-CAB PLATFORM
PLATFORM GP-OPERATOR.. RADIO GP..
SCREEN & MTG GP-CAB
SCREEN GP-SUN
SEAL GP-CAB
SEAT & MOUNTING GP
SEAT BELT GP
SEAT GP
SEAT GP-SUSPENSION SUPPORT GP-SEAT.. SUSPENSION GP-SEAT
VISOR GP-PROTECTION WASHER GP-WINDOW WINDOW GP-CAB WINDOW GP-DOOR
WIPER GP-WINDOW
SERVICE EQUIPMENT AND
SUPPLIES

Total Pages - 1309