The Caterpillar 3406C engine line groups 3 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 1206-011 | Remove Accessory Drive | Accessory drive |
| 1206-012 | Install Accessory Drive | Accessory drive |
| 1206-015 | Disassemble Accessory Drive | Accessory drive |
| 1206-016 | Assemble Accessory Drive | Accessory drive |
| 1051-010 | Air Cleaner | Air cleaner |
| 102-9720 | Cleaning Kit (detergent and oil for AIRSEP air cleaner elements) | Air filter |
| 1W7411 | CLEANER GP-AIR(D)(HEAVY DUTY) | Air filter |
| 4N0015 | Air filter outer | Air filter |
| 6I2504 | Air filter inner | Air filter |
| 8N9759 | MOUNTING GP - AIR CLEANER | Air filter |
| 50-amp | Alternator | Alternator |
| 6N9294 | CHARGING ALTERNATOR 24V 35 AMP | Alternator |
| 118-2018 | V-belt | Belt |
| 164-4599 | V-belt | Belt |
| 1W4878 | BELT GUARD - ALTERNATOR PULLEY | Belt |
| 4N6302 | V-belt | Belt |
| 6N6798 | V-belt | Belt |
| W200-1002 | Buffer Seal | Buffer seal |
| 9N3368 | Coolant Conditioner Element | Coolant filter |
| W200-1001 | Cylinder Rod Seal - Wiper Seal | Cylinder rod seal |
| 1326-010 | Dipstick Assembly | Dipstick assembly |
| 1453-010 | Electric Starting Motor | Electric starting motor |
| 1122-010 | Engine Lifting Brackets | Engine lifting bracket |
| 1154-010 | Engine Front & Rear Support | Engine support |
| 1R-0755 | High Efficiency Fuel Filter | Filter |
| 4C4611 | Cooling System Cleaner, Fast Acting-Type, 3.8 L (1 U.S. gal) container | Fluid |
| 6V4511 | Cooling System Cleaner, Standard-Type, 1.9 L (1/2 U.S. gal) container | Fluid |
| ON5561 | Silicone Lubricant for battery cable clamps and terminals | Fluid |
| 1262-010 | Fuel Filter Base | Fuel filter |
| 1R-0749 | Fuel Secondary - ADV | Fuel filter |
| 1R-0750 | High Efficiency Fuel Filter | Fuel filter |
| 1R-0751 | High Efficiency Fuel Filter | Fuel filter |
| 1R-0756 | High Efficiency Fuel Filter | Fuel filter |
| 1R-0766 | High Efficiency Fuel Filter | Fuel filter |
| 326-1642 | Filter water separator | Fuel filter |
| 326-1643 | Filter water separator | Fuel filter |
| 3S3875 | Filter fuel | Fuel filter |
| 9N3717 | Filter water separator | Fuel filter |
| 1288-011 | Remove Fuel Injection Pump & Governor Drive | Fuel injection pump governor drive |
| 1288-012 | Install Fuel Injection Pump & Governor Drive | Fuel injection pump governor drive |
| 1258-010 | Fuel Priming Pump | Fuel priming pump |
| 1256-010 | Remove & Install Fuel Transfer Pump | Fuel transfer pump |
| 1256-015 | Disassemble Fuel Transfer Pump | Fuel transfer pump |
| 1256-016 | Assemble Fuel Transfer Pump | Fuel transfer pump |
| 1282922CAT | Water Pump Gasket Set - 0.4 lbs/ 0.18 kgs, 5" Length, 27mm Width, 27mm Depth, 11 Application: 3400 | Gasket |
| 13373 | Gasket, lens oval | Gasket |
| 1555619CAT | Flywheel Housing Gasket - 3406 | Gasket |
| 1609874CAT | Single Cylinder Liner Gasket Set - 3406/ 3412 0.1 lbs/ 0.04 kgs | Gasket |
| 2161252CAT | Single Cylinder Head Gasket Set - 3406/ 3406E | Gasket |
| 3N4861 | GASKET | Gasket |
| 4N1151 | Gasket oil pan | Gasket |
| 6I3066 | Gasket cylinder head | Gasket |
| B89846P2 | Gasket and cover (9) | Gasket |
| DM-3E3322 | GASKET SET, FUEL SYSTEM 3406 | Gasket |
| DM-3E7474 | GASKET SET, FUEL SYSTEM 3406 | Gasket |
| DM-3E7485 | GASKET SET, FUEL SYSTEM 3406 | Gasket |
| DM-3E7495 | GASKET SET, FUEL SYSTEM 3406 | Gasket |
| DM-6I3066 | GASKET, CYL. HD. 3406 | Gasket |
| DM-8C4452 | GASKET SET, FUEL SYSTEM 3406 | Gasket |
| DM-8C6538 | GASKET SET, FUEL SYSTEM 3406 | Gasket |
| DM-8C6772 | GASKET SET, FUEL SYSTEM 3406 | Gasket |
| DM-8C8490 | GASKET SET, FUEL SYSTEM 3406 | Gasket |
| DM-8C8764 | GASKET SET, FUEL SYSTEM 3406 | Gasket |
| M-1282922 | Water Pump Mounting Gasket | Gasket |
| M-1609874 | Gasket Set - Cylinder Liner Packing | Gasket |
| M-1P436 | 1 Fuel Priming Pump Gasket | Gasket |
| M-3639022 | Gasket Set - Front Structure | Gasket |
| M-4N1151 | Oil Pan Gasket | Gasket |
| M-4N1151-6 | Oil Pan Gasket | Gasket |
| M-4N1156 | Gasket | Gasket |
| M-4N7253 | Nozzle Adapter Gasket | Gasket |
| M-5P5678-6 | Valve Cover Gasket | Gasket |
| M-5P5678-9 | Valve Cover Gasket | Gasket |
| M-7C307 | Gasket | Gasket |
| MCB3406031 | Overhaul Gasket Set | Gasket |
| MCB3406032 | In-Chassis Gasket Set | Gasket |
| MCB3406033 | Cylinder Head Set | Gasket |
| 3T8705 | Glow plug | Glow plug |
| 3T8706 | Glow plug | Glow plug |
| 1272-011 | Remove Governor & Fuel Pump Drive | Governor fuel pump drive |
| 1272-012 | Install Governor & Fuel Pump Drive | Governor fuel pump drive |
| 094-4412 | Filter hydraulic | Hydraulic filter |
| W200-1000 | Hydraulic Cylinder Reseal Service Kit | Hydraulic filter |
| 3N4859 | IMPELLER | Impeller |
| 9N2366 | Fuel injector | Injector |
| M-1007551 | Fuel Nozzle - 7000 Series | Injector |
| M-1007556 | Fuel Nozzle - 7000 Series | Injector |
| M-1007557 | Fuel Nozzle - 7000 Series | Injector |
| M-1007558 | Fuel Nozzle - 7000 Series | Injector |
| M-1279792 | Fuel Nozzle - 7000 Series | Injector |
| M-1279793 | Fuel Nozzle - 7000 Series | Injector |
| M-1311243 | Fuel Nozzle - 7000 Series | Injector |
| M-4W7017 | Fuel Nozzle - 7000 Series | Injector |
| M-4W7018 | Fuel Nozzle - 7000 Series | Injector |
| M-4W7022 | Fuel Nozzle - 7000 Series | Injector |
| M-7W7026 | Fuel Nozzle - 7000 Series | Injector |
| M-7W7032 | Fuel Nozzle - 7000 Series | Injector |
| M-7W7037 | Fuel Nozzle - 7000 Series | Injector |
| M-7W7040 | Fuel Nozzle - 7000 Series | Injector |
| M-7W7041 | Fuel Nozzle - 7000 Series | Injector |
| M-7W7042 | Fuel Nozzle - 7000 Series | Injector |
| M-7W7043 | Fuel Nozzle - 7000 Series | Injector |
| M-7W7044 | Fuel Nozzle - 7000 Series | Injector |
| M-9L6884 | Fuel Nozzle - Capsule | Injector |
| M-9N3246 | Fuel Nozzle - Capsule | Injector |
| 102-2828 | Filter oil | Oil filter |
| 1R1808 | Filter oil | Oil filter |
| 9M9740 | Filter oil | Oil filter |
| 0P8708 | POWER PLUS RENTL FINANCE PRGM | Service part / kit |
| 0P9484 | 0P948401JUL98PRC PROPGM641-6 | Service part / kit |
| 102-9721 | Air/Vacuum Limiter Filter Element Cleaning Kit (non-U.S.) | Service part / kit |
| 1031956 | MOUNTING GP - CONTACTOR | Service part / kit |
| 1036101 | CONTROL GP -A | Service part / kit |
| 1037284 | MOUNTING GP - BREAKER | Service part / kit |
| 1047942 | FASTENER GP | Service part / kit |
| 1048615 | BASE GP - FUEL TANK & | Service part / kit |
| 1059710 | LINES GP - OIL DRAIN | Service part / kit |
| 1069931 | LINES GP - DRAIN | Service part / kit |
| 1080723 | HARNESS GP - WIRING | Service part / kit |
| 1095264 | PANEL AR - CONTROL | Service part / kit |
| 1114219 | MOUNTING GP - CONTROL PANEL | Service part / kit |
| 1114421 | ACTUATOR AS - 524 GOVERNOR | Service part / kit |
| 1117534 | MOUNTING GP - ACTUATOR | Service part / kit |
| 1172855 | TRANSFER GP | Service part / kit |
| 1272-015 | Plug (15) | Service part / kit |
| 1309415 | 3406 DITA/XQ350 RENTAL PKG | Service part / kit |
| 1315455 | CONTROL AS | Service part / kit |
| 1315544 | RADIATOR GP | Service part / kit |
| 1N3876 | 3406 DITA ENGINE AR - BASIC | Service part / kit |
| 249-0433 | Oxidation Catalyst Assembly - Round | Service part / kit |
| 256-0326 | Oxidation Catalyst Assembly - Round | Service part / kit |
| 2T8141 | 387 KW @ 1800 RPM (519 BHP) | Service part / kit |
| 2W8198 | SOLENOID SHUTOFF - ETR 24 V | Service part / kit |
| 3N4858 | SHAFT | Service part / kit |
| 3N4860 | CAM LINER | Service part / kit |
| 3N4862 | WEAR PLATE | Service part / kit |
| 4N3093 | BLOWER FAN | Service part / kit |
| 4N6540 | MOUNTING GP-HEATER | Service part / kit |
| 4N9778 | UPPER RADIATOR CONNECTIONS | Service part / kit |
| 4P3359 | COUPLING | Service part / kit |
| 4P6247 | PICK UP GP - MAGNETIC | Service part / kit |
| 4P7610 | PICK UP GP - MAGNETIC | Service part / kit |
| 4P9687 | SR4 GENERATOR AR-POWER (60HZ) | Service part / kit |
| 4W1727 | COVER GP | Service part / kit |
| 4W5828 | AIR INLET HOOD | Service part / kit |
| 5P2506 | LITERATURE GP - ENGLISH | Service part / kit |
| 5P2586 | OIL - BULK - ONE LITER | Service part / kit |
| 6I0371 | ENCLOSURE GP | Service part / kit |
| 6L2927 | DRY ELBOW | Service part / kit |
| 6N8878 | FUEL PRESSURE GAUGE | Service part / kit |
| 6V4876 | Molykote paste | Service part / kit |
| 7E5996 | Connecting rod | Service part / kit |
| 7E6247 | JACKET WATER HEATER | Service part / kit |
| 7N8840 | FAN DRIVE 0.800 RATIO | Service part / kit |
| 7W1340 | MOUNTING GP - ALTERNATOR | Service part / kit |
| 8N1726 | Connecting rod | Service part / kit |
| 9G4231 | BATTERY - 12 VOLT | Service part / kit |
| BER0005 | BEARING | Service part / kit |
| CAMSET0018 | CAM LINER | Service part / kit |
| DZ111166 | (3402) (3404) (3408) (3409) (974G) | Service part / kit |
| JSK002601 | SERVICE KIT | Service part / kit |
| M-2477133 | 1 Regulator - 190ºC | Service part / kit |
| M-2485513 | 1 Regulator - 180ºC | Service part / kit |
| P34605 | Housing Assembly Group Front (distributor body marked FRONT) | Service part / kit |
| P34610 | Housing Assembly Group Rear (distributor body marked REAR) | Service part / kit |
| P34616 | P-36 Basic Kit | Service part / kit |
| P34617 | Electrical Group - Mechanical (Harness P813-CT included) | Service part / kit |
| PEHP3036 | Cat Reman Short and Long Blocks | Service part / kit |
| PEHP3036-01 | Cat Reman Short and Long Blocks | Service part / kit |
| QEHQ9870 | Rear Wheel Assist System | Service part / kit |
| SHA0046 | SHAFT | Service part / kit |
| WER0010 | WEAR PLATE | Service part / kit |
| 108-6633 | Fuel pump | Pump |
| 1313533 | PUMP GP - GOVERNOR | Pump |
| 135-4925 | Water pump | Pump |
| 138-6744 | Water pump repair kit | Pump |
| 161-4111 | Oil pump | Pump |
| 1W1700 | Lift/transfer pump | Pump |
| 384-8612 | Lift/transfer pump | Pump |
| 5N4852 | PUMP ASSY | Pump |
| JPR-CT3406 | PUMP ASSY | Pump |
| M-1052508 | 1 Fuel Priming Pump | Pump |
| M-1354926 | Water Pump | Pump |
| M-1375541 | 1 Fuel Priming Pump Tall | Pump |
| M-1W1700 | Fuel Transfer Pump | Pump |
| M-4N733 | Oil Pump | Pump |
| 1371-011 | Raw Water Pump | Raw water pump |
| 1371-012 | Install Raw Water Pump | Raw water pump |
| 1371-015 | Disassemble Raw Water Pump | Raw water pump |
| 1371-016 | Assemble Raw Water Pump | Raw water pump |
| 142-5867 | Front seal | Seal |
| 142-5868 | Rear seal | Seal |
| 3N4863 | OIL SEAL | Seal |
| 3N5632 | M-SEAL | Seal |
| 4W3864 | Water pump seal | Seal |
| M-1090077 | Seal O-Ring | Seal |
| M-1425867 | Front Crankshaft Seal | Seal |
| M-1425868 | Rear Crankshaft Seal | Seal |
| M-1632478 | 6 6 Valve Stem Seal - Exhaust | Seal |
| M-2S2251 | Nozzle Adapter Seal Ring | Seal |
| M-3S9643 | 1 Regulator Seal | Seal |
| M-5H7153 | Nozzle Adapter Seal Ring | Seal |
| M-5S2106 | Fan Hub Seal | Seal |
| M-7F2122 | Fan Hub O-Ring Seal | Seal |
| M-8M5249 | Nozzle Adapter Seal Ring | Seal |
| MCBKT7000 | Nozzle Seal Kit - 7000 Series | Seal |
| MCSSET0007 | M-SEAL(WITH SNAP-RING) | Seal |
| 7478-010 | Service Meter | Service meter |
| ESD5526 | Speed Controller | Speed controller |
| 4N1062 | ELECTRIC STARTING MOTOR LH 24V | Starter |
| 7462-010 | Tachometer Drive | Tachometer drive |
| 247-7133 | Thermostat | Thermostat |
| 248-5513 | Thermostat | Thermostat |
| M-1209453 | Regulator - 170° | Thermostat |
| 7C7691 | Turbocharger | Turbocharger |
| W200-1003 | U-cup Seal | U cup seal |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Leads compiled from supplier catalogs across the family’s variants; verify the exact part for your variant and serial number.