184-7932 DRIVE AR-BACKHOE LOADER -2-WHEEL DRIVE, 2-WHEEL STEER S/N BLN10300-UP CENTER PIVOT AN ATTACHMENT 420D

Part No	Qty	Parts name
107-3716 Y	[1]	AXLE & MTG GP-REAR
202-6198 Y	[1]	AXLE GP-FRONT
		S/N BLN10300-UP
190-8954 Y	[1]	LINES GP-PUMP
185-3413 Y	[1]	LINES GP-STABILIZER
202-5712 Y	[1]	LINES GP-STEERING
238-8550 Y	[1]	PUMP GP-METERING (HMU)
		S/N BLN10300-UP
185-1129 Y	[1]	SUPPRESSION AR-SOUND
185-9784 Y	[1]	VALVE & MTG GP-BANK (STABILIZER)
185-8808 Y	[1]	WIRING GP-REAR

189-4419	[1]	FILM-IDENTIFICATION (FUSE PANEL)
		(INSIDE RIGHT CONSOLE ON FUSE BLOCK)
189-4420	[1]	FILM-IDENTIFICATION (FUSE PANEL)
		S/N BFP1-7145; BLN1-6029; BML1-2568; BNK1-3078; FDP1-10594
		(INSIDE RIGHT CONSOLE ON FUSE BLOCK)
231-9352	[1]	FILM-IDENTIFICATION (FUSE LOCATION)
		S/N BFP7146-9559; BLN6030-7965; BML2569-3502; BNK3079-4366; FDP10595-14495
		(INSIDE RIGHT CONSOLE ON THE FUSE BLOCK)
Y		SEPARATE ILLUSTRATION

#SEBP39950021

184-7940: DRIVE AR-BACKHOE LOADER

DRIVE AR-BACKHOE LOADER

184-7940 DRIVE AR-BACKHOE LOADER -ALL WHEEL DRIVE, 2-WHEEL STEER
S/N BLN10300-UP
CENTER PIVOT
PART OF 230-8844 DISTRIBUTION AR
AN ATTACHMENT

i02069478 SEBP3995

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Parts for your 420D BACKHOE LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
202-6196 Y	[1]	AXLE & MTG GP-DRIVE & STEERING (FRONT)
		S/N BLN10300-UP
202-6195 Y	[1]	AXLE & MTG GP-REAR
		S/N BLN10300-UP
9R-1233 Y	[1]	GUARD GP-DRIVE SHAFT
190-8954 Y	[1]	LINES GP-PUMP
185-3413 Y	[1]	LINES GP-STABILIZER
202-5711 Y	[1]	LINES GP-STEERING
		S/N BLN10300-UP
185-1129 Y	[1]	SUPPRESSION AR-SOUND
185-9784 Y	[1]	VALVE & MTG GP-BANK (STABILIZER)
185-8808 Y	[1]	WIRING GP-REAR
186-0309 Y	[1]	WIRING GP-CONSOLE (FRONT, ALL WHEEL DRIVE)

202-5710	[1]	FILM-IDENTIFICATION (FUSE LOCATION)
		(INSIDE RIGHT CONSOLE ON FUSE BLOCK)
189-4420	[1]	FILM-IDENTIFICATION (FUSE PANEL)
		S/N BFP1-7145; BLN1-6029; BML1-2568; BNK1-3078; FDP1-10594
		(INSIDE RIGHT CONSOLE ON FUSE BLOCK)
231-9352	[1]	FILM-IDENTIFICATION (FUSE LOCATION)
		S/N BFP7146-9559; BLN6030-7965; BML2569-3502; BNK3079-4366; FDP10595-14495
		(INSIDE RIGHT CONSOLE INSIDE FUSE BLOCK)
Y		SEPARATE ILLUSTRATION

#SEBP39950022

237-6458: DRIVE AR-BACKHOE LOADER

DRIVE AR-BACKHOE LOADER

237-6458 DRIVE AR-BACKHOE LOADER -2-WHEEL DRIVE, 2-WHEEL STEER
S/N BLN10300-UP
PART OF 214-6955, 214-6958, 214-6976 POWER TRAIN AR
AN ATTACHMENT

i01969011 SEBP3995

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Parts for your 420D BACKHOE LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
107-3716 Y	[1]	AXLE & MTG GP-REAR
202-6198 Y	[1]	AXLE GP-FRONT
190-8954 Y	[1]	LINES GP-PUMP
185-3413 Y	[1]	LINES GP-STABILIZER
202-5712 Y	[1]	LINES GP-STEERING
238-8550 Y	[1]	PUMP GP-METERING (HMU)
185-9784 Y	[1]	VALVE & MTG GP-BANK (STABILIZER)
185-8808 Y	[1]	WIRING GP-REAR

202-5710	[1]	FILM-IDENTIFICATION (FUSE LOCATION)
231-9352	[1]	FILM-IDENTIFICATION (FUSE LOCATION)
Y		SEPARATE ILLUSTRATION

#SEBP39950023

237-6459: DRIVE AR-BACKHOE LOADER

DRIVE AR-BACKHOE LOADER

237-6459 DRIVE AR-BACKHOE LOADER -ALL WHEEL DRIVE, 2-WHEEL STEER
S/N BLN10300-UP
PART OF 214-6956, 214-6957, 214-6959, 214-6977, 214-6978 POWER TRAIN AR
AN ATTACHMENT

i01969024 SEBP3995

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Parts for your 420D BACKHOE LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
202-6196 Y	[1]	AXLE & MTG GP-DRIVE & STEERING (FRONT)
202-6195 Y	[1]	AXLE & MTG GP-REAR
9R-1233 Y	[1]	GUARD GP-DRIVE SHAFT
190-8954 Y	[1]	LINES GP-PUMP
185-3413 Y	[1]	LINES GP-STABILIZER
202-5711 Y	[1]	LINES GP-STEERING
238-8550 Y	[1]	PUMP GP-METERING (HMU)
185-9784 Y	[1]	VALVE & MTG GP-BANK (STABILIZER)
186-0309 Y	[1]	WIRING GP-CONSOLE (FRONT, ALL WHEEL DRIVE)
185-8808 Y	[1]	WIRING GP-REAR

202-5710	[1]	FILM-IDENTIFICATION (FUSE LOCATION)
231-9352	[1]	FILM-IDENTIFICATION (FUSE LOCATION)
Y		SEPARATE ILLUSTRATION

#SEBP39950024

112-1827: LOADER AR

LOADER AR

112-1827 LOADER AR
S/N BLN10300-UP
PART OF 247-0684 COMMON AR

i00202106 SEBP3995

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Parts for your 420D BACKHOE LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
111-0339 Y	[1]	ARM GP-LIFT
122-1644 Y	[1]	WIRING GP-KICKOUT & POSITIONER
Y		SEPARATE ILLUSTRATION

#SEBP39950025

185-1129: SUPPRESSION AR-SOUND

SUPPRESSION AR-SOUND

185-1129 SUPPRESSION AR-SOUND
S/N BLN10300-UP
PART OF 184-7932, 184-7940 DRIVE AR-BACKHOE LOADER
AN ATTACHMENT

i01389955 SEBP3995

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Parts for your 420D BACKHOE LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
197-3263 Y	[1]	AIR CLEANER GP
174-7153 Y	[1]	LINES GP-PUMP
Y		SEPARATE ILLUSTRATION

#SEBP39950026

214-6892: ENGINE AR

ENGINE AR

214-6892 ENGINE AR
S/N BLN10300-12985
PART OF 247-0684 COMMON AR

i02002886 SEBP3995

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Parts for your 420D BACKHOE LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
234-1979 Y	[1]	AIR CLEANER GP (TURBOCHARGED)
234-8892 Y	[1]	CONTROL GP-GOVERNOR
234-3060 Y	[1]	ENGINE AR-PRIMARY
236-2486 Y	[1]	EXTENSION GP-EXHAUST
234-7510 Y	[1]	GAUGE GP-OIL LEVEL & FILLER (WITH FILTER)
235-2972 Y	[1]	LINES GP-FUEL
235-3420 Y	[1]	MUFFLER GP
235-3170 Y	[1]	SEPARATOR GP-WATER
234-1991 Y	[1]	WIRING GP-ENGINE
R		REMANUFACTURED PART MAY BE AVAILABLE
Y		SEPARATE ILLUSTRATION

#SEBP39950027

276-4060: ENGINE AR

ENGINE AR

276-4060 ENGINE AR
S/N BLN12986-UP
PART OF 247-0684 COMMON AR

i02421126 SEBP3995

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Parts for your 420D BACKHOE LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
234-1979 Y	[1]	AIR CLEANER GP (TURBOCHARGED)(TURBOCHARGED)
234-8892 Y	[1]	CONTROL GP-GOVERNOR
273-3611 Y	[1]	ENGINE AR-PRIMARY
236-2486 Y	[1]	EXTENSION GP-EXHAUST
234-7510 Y	[1]	GAUGE GP-OIL LEVEL & FILLER (WITH FILTER)
235-2972 Y	[1]	LINES GP-FUEL
235-3420 Y	[1]	MUFFLER GP
235-3170 Y	[1]	SEPARATOR GP-WATER
234-1991 Y	[1]	WIRING GP-ENGINE
R		REMANUFACTURED PART MAY BE AVAILABLE
Y		SEPARATE ILLUSTRATION

#SEBP39950028

234-3060: ENGINE AR-PRIMARY

ENGINE AR-PRIMARY

234-3060 ENGINE AR-PRIMARY
S/N G4D1-UP; CRS1-UP
69 BRAKE KW (92 BHP) AT 2200 RPM
PART OF 214-6892 ENGINE AR

i02002996 SEBP3995

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Parts for your 420D BACKHOE LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
237-0027 Y	[1]	ALTERNATOR GP-CHARGING
232-7528 Y	[1]	CAMSHAFT GP
231-0033 Y	[1]	CONNECTION GP-WATER
238-2799 Y	[1]	COOLER GP-FLTR BASE & ENG OIL
231-0149 Y	[1]	COVER GP-INLET MANIFOLD
246-2582 Y	[1]	COVER GP-VALVE MECHANISM
232-7439 Y	[1]	CRANKSHAFT GP
232-7606 Y	[1]	CYLINDER BLOCK GP
232-7524 Y	[1]	CYLINDER HEAD GP
236-8241 Y	[1]	DRIVE GP-FAN
230-7300 Y	[1]	FLYWHEEL GP
232-6661 Y	[1]	GLOW PLUG GP
236-8238 Y	[1]	HOUSING GP-FLYWHEEL
232-3670 Y	[1]	HOUSING GP-FRONT
233-7432 Y	[1]	LIFTING GP-ENGINE
247-4885 Y	[1]	LINES GP-FUEL FILTER
237-3658 Y	[1]	MOUNTING GP-ENGINE
237-0025 Y	[1]	PAN GP-OIL
232-7442 Y	[1]	PISTON & ROD GP
230-7569 Y	[1]	PLUG GP-ENGINE
225-4317 Y	[1]	PLUG GP-ENGINE
230-7353 Y	[1]	PULLEY GP-CRANKSHAFT
230-7578 Y	[1]	PUMP GP-ENGINE OIL
237-5214 Y	[1]	PUMP GP-FUEL INJECTION
230-7355 Y	[1]	PUMP GP-WATER
237-0024 Y	[1]	STARTING MOTOR GP-ELECTRIC
237-4896 Y	[1]	SWITCH GP-PRESSURE
235-8749 Y	[1]	SWITCH GP-TEMPERATURE
237-3924 Y	[1]	TURBOCHARGER GP
232-7526 Y	[1]	VALVE MECHANISM GP

		AVAILABLE GASKET KIT(S):
277-5156	[1]	KIT-GASKET (TOP)
272-2232	[1]	KIT-GASKET (BOTTOM)
Y		SEPARATE ILLUSTRATION

#SEBP39950029

273-3611: ENGINE AR-PRIMARY

ENGINE AR-PRIMARY

273-3611 ENGINE AR-PRIMARY
S/N G4D12986-UP; CRS12986-UP
PART OF 276-4060 ENGINE AR

i02446569 SEBP3995

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Parts for your 420D BACKHOE LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
252-6256 Y	[1]	ALTERNATOR GP-CHARGING (120-AMPERE, WITH MOUNTING)
232-7528 Y	[1]	CAMSHAFT GP
231-0033 Y	[1]	CONNECTION GP-WATER
238-2799 Y	[1]	COOLER GP-FLTR BASE & ENG OIL
231-0149 Y	[1]	COVER GP-INLET MANIFOLD
246-2582 Y	[1]	COVER GP-VALVE MECHANISM
232-7439 Y	[1]	CRANKSHAFT GP
232-7606 Y	[1]	CYLINDER BLOCK GP
232-7524 Y	[1]	CYLINDER HEAD GP
236-8241 Y	[1]	DRIVE GP-FAN
230-7300 Y	[1]	FLYWHEEL GP
232-6661 Y	[1]	GLOW PLUG GP
236-8238 Y	[1]	HOUSING GP-FLYWHEEL
232-3670 Y	[1]	HOUSING GP-FRONT
233-7432 Y	[1]	LIFTING GP-ENGINE
247-4885 Y	[1]	LINES GP-FUEL FILTER
237-3658 Y	[1]	MOUNTING GP-ENGINE
237-0025 Y	[1]	PAN GP-OIL
232-7442 Y	[1]	PISTON & ROD GP
225-4317 Y	[1]	PLUG GP-ENGINE
230-7569 Y	[1]	PLUG GP-ENGINE
230-7353 Y	[1]	PULLEY GP-CRANKSHAFT
230-7578 Y	[1]	PUMP GP-ENGINE OIL
277-5188 Y	[1]	PUMP GP-FUEL INJECTION
230-7355 Y	[1]	PUMP GP-WATER
237-0024 Y	[1]	STARTING MOTOR GP-ELECTRIC
237-4896 Y	[1]	SWITCH GP-PRESSURE
235-8749 Y	[1]	SWITCH GP-TEMPERATURE
237-3924 Y	[1]	TURBOCHARGER GP
232-7526 Y	[1]	VALVE MECHANISM GP

		AVAILABLE REPAIR KIT(S):
268-0867	[1]	CYLINDER BLOCK GP-SHORT
272-2232	[1]	KIT-GASKET (BOTTOM)
277-5156	[1]	KIT-GASKET (TOP)(TOP)
Y		SEPARATE ILLUSTRATION

Information:

ELECTRICAL AND STARTING SYSTEM

WIRING GP

Engine News

Correction to The Pocket Guide, SEBD0402 Is Available as a Reference for Routing and Installing Wire Harness Assemblies {1408}
2000/07/01

270-5051 Repair Kit (Electrical Connectors) Available for Repairs to Wiring Harnesses with Ampseal 16 and A4E 2 Connectors {0709, 1408}
2006/03/20

Bulk Wiring Harnesses Are Available for Use with Caterpillar Products {1408}
2010/05/13

Operation and Maintenance Manual

Fuses - Replace
420D and 430D Backhoe Loaders

Quick Coupler Control (Loader) - If Equipped
420D and 430D Backhoe Loaders

Hydraulic Lock Control - If Equipped
420D and 430D Backhoe Loaders

Autoshift Control - If Equipped
420D and 430D Backhoe Loaders

Quick Coupler Control (Loader) - If Equipped
420D and 430D Backhoe Loaders

Hydraulic Lock Control - If Equipped
420D and 430D Backhoe Loaders

Battery or Battery Cable - Inspect/Replace
416D, 420D, 424D, 428D, 430D, 432D and 442D Backhoe Loaders

Operator Station
420D and 430D Backhoe Loaders

Fuses - Replace
416D, 420D, 424D, 428D, 430D, 432D and 442D Backhoe Loaders

Special Instruction

Cross-Reference for Electrical Connectors {7553}
Cross-Reference for Electrical Connectors {7553}

Installing a Ride Control Kit{5004, 5057, 5077}
Installing a Ride Control Kit{5004, 5057, 5077}

Circuit Breaker Harness Assembly {1420}
Circuit Breaker Harness Assembly {1420}

Ampseal 16 Connector Peripheral Seal Servicing{7553}
Ampseal 16 Connector Peripheral Seal Servicing{7553}

Service Of Machined Terminals And Service of Stamped and Formed Terminals{7553}
Service Of Machined Terminals And Service of Stamped and Formed Terminals{7553}

Installation and Operation of the Exhaust Monitor Used in All Diesel Particulate Filter (DPF) Retrofit Emissions Applications{1091, 1408, 7490, 7498}
Installation and Operation of the Exhaust Monitor Used in All Diesel Particulate Filter (DPF) Retrofit Emissions Applications{1091, 1408, 7490, 7498}

Selecting the Correct Part Numbers for Sensors and Connectors{1439, 7553}
Selecting the Correct Part Numbers for Sensors and Connectors{1439, 7553}

Guidelines for Routing and Installing Wire Harness Assemblies {1408, 7553}
Guidelines for Routing and Installing Wire Harness Assemblies {1408, 7553}

Repair Procedure for Damaged Harness Wiring {1408}
Repair Procedure for Damaged Harness Wiring {1408}

Installation Procedure for Product Link PL421 Retrofit{7606}
Installation Procedure for Product Link PL421 Retrofit{7606}

DRCP Connector Repair Service Instruction {1408, 7553}
DRCP Connector Repair Service Instruction {1408, 7553}

Service Letter-NACD

PRODUCT SUPPORT PROGRAM FOR REPLACING THE 1894920 RELAY TIMER USED IN THE HYDRAULIC FILTER BYPASS CIRCUIT ON CERTAIN 420D AND 430D BACKHOE LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE 1894920 RELAY TIMER USED IN THE HYDRAULIC FILTER BYPASS CIRCUIT ON CERTAIN 420D AND 430D BACKHOE LOADERS

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HVAC BREAKER WITH A 35 AMP BREAKER ON CERTAIN 416D, 420D, 424D, 428D, 430D, 432D, 438D AND 442D BACKHOE LOADERS EQUIPPED WITH A CAB
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HVAC BREAKER WITH A 35 AMP BREAKER ON CERTAIN 416D, 420D, 424D, 428D, 430D, 432D, 438D AND 442D BACKHOE LOADERS EQUIPPED WITH A CAB

PRODUCT IMPROVEMENT PROGRAM FOR UPDATING THE AUXILIARY HYDRAULICS SOFTWARE ON CERTAIN 420D IT AND 430D IT BACKHOE LOADERS
PRODUCT IMPROVEMENT PROGRAM FOR UPDATING THE AUXILIARY HYDRAULICS SOFTWARE ON CERTAIN 420D IT AND 430D IT BACKHOE LOADERS

PRODUCT SUPPORT PROGRAM FOR REPLACING THE SERVICE METER ON CERTAIN 416D, 420D, 420D IT, 424D, 428D, 430D, 430D IT, 432D, 438D, 442D AND 446D BACKHOE LOADERS
PRODUCT SUPPORT PROGRAM FOR REPLACING THE SERVICE METER ON CERTAIN 416D, 420D, 420D IT, 424D, 428D, 430D, 430D IT, 432D, 438D, 442D AND 446D BACKHOE LOADERS

PRODUCT SUPPORT PROGRAM FOR REPLACING THE PL641 CELLULAR RADIO ON CERTAIN CATERPILLAR PRODUCTS WITH A 12 VOLT ELECTRICAL SYSTEM
PRODUCT SUPPORT PROGRAM FOR REPLACING THE PL641 CELLULAR RADIO ON CERTAIN CATERPILLAR PRODUCTS WITH A 12 VOLT ELECTRICAL SYSTEM

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Technical Information Bulletin

The Circuit Breaker For The Heating And Air Conditioning Fan
The Circuit Breaker For The Heating And Air Conditioning Fan

Steering Column Control Group (Lights, Signal, Washer, Wiper) May Fail
Steering Column Control Group (Lights, Signal, Washer, Wiper) May Fail

Auto-Up Stabilizer
Auto-Up Stabilizer

MULTI-PURPOSE BUCKET OR WORK TOOL OPERATES IN ONE DIRECTION ONLY
MULTI-PURPOSE BUCKET OR WORK TOOL OPERATES IN ONE DIRECTION ONLY

Tool Operating Manual

Using the 362-3555 Connector Repair Kit to Service Harnesses with Ampseal 16 Connectors{0685, 1408}
Using the 362-3555 Connector Repair Kit to Service Harnesses with Ampseal 16 Connectors{0685, 1408}

Using the U5MK1110 Ampseal Connector Kit for Wiring Harness Repairs on Perkins Engines{7553}
Using the U5MK1110 Ampseal Connector Kit for Wiring Harness Repairs on Perkins Engines{7553}

Using the U5MK1110 Ampseal Connector Kit for Wiring Harness Repairs on Perkins Engines{0374, 0599, 0701, 0709}
Using the U5MK1110 Ampseal Connector Kit for Wiring Harness Repairs on Perkins Engines{0374, 0599, 0701, 0709}

Using the 453-3204 Pressure and Temperature Test Group{0374, 0599, 0706, 0708, 0709, 0731, 0732, 0738, 1408, 1439}
Using the 453-3204 Pressure and Temperature Test Group{0374, 0599, 0706, 0708, 0709, 0731, 0732, 0738, 1408, 1439}

Service Letter-China

Service Letter-Asia

Systems Operation

Cat Data Link
420D, 430D, 432D and 442D Backhoe Loaders Auxiliary Hydraulic Electronic Control System

Switches
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

Sensors
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

Switches
420D, 430D, 432D and 442D Backhoe Loaders Auxiliary Hydraulic Electronic Control System

Pressure Switch (Refrigerant)
Air Conditioning and Heating R134a for All Caterpillar Machines

Reuse And Salvage Guidelines

Guideline for Visual Inspection and Repair of Foam Wiring Harness {0649, 1408, 1408, 1408, 1408}
Guideline for Visual Inspection and Repair of Foam Wiring Harness {0649, 1408, 1408, 1408, 1408}

Service Letter-APD

Testing and Adjusting

Speed Sensor - Adjust
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

Electrical Connector - Inspect
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

System Schematic
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

System Schematic
Machine Security System

System Schematic
420D, 430D, 432D and 442D Backhoe Loaders Auxiliary Hydraulic Electronic Control System

Electric Starting System - Test
3054 Engine

System Schematic
420D, 430D, 432D and 442D Backhoe Loaders Auxiliary Hydraulic Electronic Control System

Electrical Connector - Inspect
Machine Security System

Electrical Connector - Inspect
Product Link - PL522/523

Wiring Harness (Open Circuit) - Test
Product Link - PL522/523

Wiring Harness (Short Circuit) - Test
Product Link - PL522/523

Electrical Connector - Inspect
Product Link 121S/300

Wiring Harness (Open Circuit) - Test
Product Link 121S/300

Wiring Harness (Short Circuit) - Test
Product Link 121S/300

System Schematic
MSS3s Machine Security System

Troubleshooting

Electrical Component and Connector Locations
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0621 - FMI 02
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0683 - FMI 03
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0683 - FMI 05
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0683 - FMI 06
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

Limit Switch (Parking Brake)
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

Toggle Switch (Automatic/Manual)
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

Toggle Switch (Neutral Lock)
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0191 - FMI 08
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0346 - FMI 03
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0346 - FMI 05
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0346 - FMI 06
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0367 - FMI 02
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

Electrical Component and Connector Locations
420D, 430D, 432D and 442D Backhoe Loaders Auxiliary Hydraulic Electronic Control System

Switch (Continuous Flow)
420D, 430D, 432D and 442D Backhoe Loaders Auxiliary Hydraulic Electronic Control System

MID 106 - CID 1187 - FMI 04
420D, 430D, 432D and 442D Backhoe Loaders Auxiliary Hydraulic Electronic Control System

MID 106 - CID 1529 - FMI 02
420D, 430D, 432D and 442D Backhoe Loaders Auxiliary Hydraulic Electronic Control System

Switch (Quick Coupler Pin)
420D, 430D, 432D and 442D Backhoe Loaders Auxiliary Hydraulic Electronic Control System

MID 081 - CID 0368 - FMI 05
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

MID 081 - CID 0368 - FMI 06
420D, 428D, 430D, 432D, 438D, 442D and 446B Backhoe Loaders Power Train Electronic Control System

Electrical Component and Connector Locations
Machine Security System

MID 122 - CID 0269 - FMI 03
Product Link 121S/300

MID 122 - CID 0269 - FMI 04
Product Link 121S/300

Cat Data Link - Test
MSS3s Machine Security System

Wiring Harness (Open Circuit) - Test
MSS3s Machine Security System

Wiring Harness (Short Circuit) - Test
MSS3s Machine Security System

Connector Locations
MSS3s Machine Security System

Connector Contact Description
MSS3s Machine Security System

Electrical Connector - Inspect
MSS3s Machine Security System

Service Magazine

Correction to The Pocket Guide, SEBD0402, Is Available as a Reference for Routing and Installing Wire Harness Assemblies {1408}
2000/10/23

Dielectric Grease Should Not Be Used in Electrical Connectors {1408, 7553}
2000/10/09

A Special Instruction, REHS0987 , "Installing a Ride Control Kit" is Available {5004, 5057, 5077}
2001/03/19

New Software Improves the Movement of the Quick Coupler Pins {7620}
2001/06/04

Changes to Operation and Maintenance Manual , "Quick Coupler Control and Auxiliary Circuit Control" {1435, 5700, 6129, 7451}
2002/10/07

Harness Repair Kits are now Available for the Fuse Blocks of Backhoe Loaders {1408}
2001/10/08

A New Engine Coolant Temperature Gauge Provides a More Accurate Temperature Reading {1408, 7453}
2003/05/12

Installing the Hydraulic Broom Arrangement {6129, 6335}
2003/03/03

A New Hazard Switch in the Console Wiring Improves Service Life {1408, 1435}
2003/10/20

Improved Retention of the Harness for the Quick Coupler Improves Reliability {1408, 6129}
2006/03/27

Service of the Machined Terminals and the Stamped and Formed Terminals {7553}
2006/11/13

An Improved Pressure Switch for the Ride Control is Available for Backhoe Loaders {1408, 5004}
2007/07/02

A New Key Start Switch Is Available For Series D Backhoe Loaders {1408, 1416}
2008/02/04

Updated Instruction For The Bypass Harness {0785, 1408}
2008/03/17

Bulk Wiring Harnesses Are Available for Use with Caterpillar Products {1408}
2012/03/05

Striped Wire Is Replaced With Improved Ink Jet Identification for Legacy (Parts Service) Wire harnesses {1408}
2012/06/08

Use Conductive Fasteners for Electrical Grounding on All Cat Products {7553, 7556}
2012/05/08

Information On Battery Cables and Wire Assemblies for Assembling at Dealer Site {4459}
2012/09/21

Parts are Now Available to Make Jump Start Receptacle on Cat<SUP>®</SUP> Product {1463}
2014/03/04

Comprehensive List of Electrical Repair and Troubleshooting Information Is Now Available for All CAT Machines {0374, 0709, 1400, 1408, 7490, 7553, 7610}
Comprehensive List of Electrical Repair and Troubleshooting Information Is Now Available for All CAT Machines {0374, 0709, 1400, 1408, 7490, 7553, 7610}

Obsolete Timer Relay is No Longer Available For Certain Backhoe Loaders {1408}
Obsolete Timer Relay is No Longer Available For Certain Backhoe Loaders {1408}

Caterpillar Parts SIS Catalog 420D :

230-8844 DISTRIBUTION AR

247-0684 COMMON AR

214-6952 CHASSIS AR

243-1591 BACKHOE AR-STANDARD STICK

238-4787 BACKHOE AR-STANDARD STICK

238-4785 BACKHOE AR-STANDARD STICK

202-5963 BACKHOE AR-STANDARD STICK

202-5961 BACKHOE AR-STANDARD STICK

184-7940 DRIVE AR-BACKHOE LOADER

237-6458 DRIVE AR-BACKHOE LOADER

237-6459 DRIVE AR-BACKHOE LOADER

112-1827 LOADER AR

185-1129 SUPPRESSION AR-SOUND

214-6892 ENGINE AR

276-4060 ENGINE AR

234-3060 ENGINE AR-PRIMARY

Truck sale:

Caterpillar 420D
- backhoe loader
CARTER MACHINERY COMPANY, INC.

37,500

Caterpillar 420D, backhoe loader, Construction
- backhoe loader
QUINN COMPANY

37,883

Caterpillar 420D, backhoe loader, Construction
- backhoe loader
MILTON CAT

39,174

Caterpillar 420D, backhoe loader, Construction
- backhoe loader
MILTON CAT

Caterpillar 420D, backhoe loader, Construction
- backhoe loader
WESTERN STATES EQUIPMENT