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Caterpillar 3406C-TA Engine Engine

The Caterpillar 3406C-TA is a 14.64 L 6-cylinder na engine rated at 1800 rpm, producing up to 245 kW. It powers generator sets from Caterpillar, including the 3406C TA, AUXILIAR, DM2273 and DM7525. It holds 38 L (10.0 gal) of oil and 20.8 L (5.5 gal) of coolant.

Also known as: Caterpillar 3406C-TA

Part of the Caterpillar 3406C engine family — 2 variants share parts & fitment.

14.64 L
Displacement
6
Cylinders
1800 rpm
Rated speed
245 kW
Gross power

Engine specifications

Oil capacity38.0 L
Coolant capacity20.8 L
Displacement14.64 L
Cylinders6
AspirationNA
Rated speed1800 rpm
Gross power245 kW

Generator sets powered by this engine

4
Caterpillar 3406C TACaterpillar AUXILIARCaterpillar DM2273Caterpillar DM7525

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filter— find
Fuel filter— find
Oil filter— find
Belt— find
Coolant20.8 L—
Oil38.0 L—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Parts cataloged across the Caterpillar 3406C family

187
Part #DescriptionCategory
1W7411CLEANER GP-AIR(D)(HEAVY DUTY)air_filter
8N9759MOUNTING GP - AIR CLEANERair_filter
50-ampAlternatoralternator
6N9294CHARGING ALTERNATOR 24V 35 AMPalternator
1W4878BELT GUARD - ALTERNATOR PULLEYbelt
W200-1002Buffer Sealbuffer_seal
i01329129Coolantcoolant_filter
i01359892Coolantcoolant_filter
W200-1001Cylinder Rod Seal - Wiper Sealcylinder_rod_seal
1R-0749High Efficiency Fuel Filterfuel_filter
1R-0750High Efficiency Fuel Filterfuel_filter
1R-0751High Efficiency Fuel Filterfuel_filter
1R-0755High Efficiency Fuel Filterfuel_filter
1R-0756High Efficiency Fuel Filterfuel_filter
1R-0766High Efficiency Fuel Filterfuel_filter
1282922CATWater Pump Gasket Set - 0.4 lbs/ 0.18 kgs, 5" Length, 27mm Width, 27mm Depth, 11 Application: 3400gasket
1555619CATFlywheel Housing Gasket - 3406gasket
1609874CATSingle Cylinder Liner Gasket Set - 3406/ 3412 0.1 lbs/ 0.04 kgsgasket
2161252CATSingle Cylinder Head Gasket Set - 3406/ 3406Egasket
3N4861GASKETgasket
DM-3E3322GASKET SET, FUEL SYSTEM 3406gasket
DM-3E7474GASKET SET, FUEL SYSTEM 3406gasket
DM-3E7485GASKET SET, FUEL SYSTEM 3406gasket
DM-3E7495GASKET SET, FUEL SYSTEM 3406gasket
DM-6I3066GASKET, CYL. HD. 3406gasket
DM-8C4452GASKET SET, FUEL SYSTEM 3406gasket
DM-8C6538GASKET SET, FUEL SYSTEM 3406gasket
DM-8C6772GASKET SET, FUEL SYSTEM 3406gasket
DM-8C8490GASKET SET, FUEL SYSTEM 3406gasket
DM-8C8764GASKET SET, FUEL SYSTEM 3406gasket
M-1282922Water Pump Mounting Gasketgasket
M-1609874Gasket Set - Cylinder Liner Packinggasket
M-1P4361 Fuel Priming Pump Gasketgasket
M-3639022Gasket Set - Front Structuregasket
M-4N1151Oil Pan Gasketgasket
M-4N1151-6Oil Pan Gasketgasket
M-4N1156Gasketgasket
M-4N7253Nozzle Adapter Gasketgasket
M-5P5678-6Valve Cover Gasketgasket
M-5P5678-9Valve Cover Gasketgasket
M-7C307Gasketgasket
MCB3406031Overhaul Gasket Setgasket
MCB3406032In-Chassis Gasket Setgasket
MCB3406033Cylinder Head Setgasket
i01206414Standard Torque for Constant Torque Hose Clampshose
i01206505Standard Torque for Worm Drive Band Hose Clampshose
W200-1000Hydraulic Cylinder Reseal Service Kithydraulic_filter
3N4859IMPELLERimpeller
M-1007551Fuel Nozzle - 7000 Seriesinjector
M-1007556Fuel Nozzle - 7000 Seriesinjector
M-1007557Fuel Nozzle - 7000 Seriesinjector
M-1007558Fuel Nozzle - 7000 Seriesinjector
M-1279792Fuel Nozzle - 7000 Seriesinjector
M-1279793Fuel Nozzle - 7000 Seriesinjector
M-1311243Fuel Nozzle - 7000 Seriesinjector
M-4W7017Fuel Nozzle - 7000 Seriesinjector
M-4W7018Fuel Nozzle - 7000 Seriesinjector
M-4W7022Fuel Nozzle - 7000 Seriesinjector
M-7W7026Fuel Nozzle - 7000 Seriesinjector
M-7W7032Fuel Nozzle - 7000 Seriesinjector
M-7W7037Fuel Nozzle - 7000 Seriesinjector
M-7W7040Fuel Nozzle - 7000 Seriesinjector
M-7W7041Fuel Nozzle - 7000 Seriesinjector
M-7W7042Fuel Nozzle - 7000 Seriesinjector
M-7W7043Fuel Nozzle - 7000 Seriesinjector
M-7W7044Fuel Nozzle - 7000 Seriesinjector
M-9L6884Fuel Nozzle - Capsuleinjector
M-9N3246Fuel Nozzle - Capsuleinjector
0P8708POWER PLUS RENTL FINANCE PRGMother_service
0P94840P948401JUL98PRC PROPGM641-6other_service
1031956MOUNTING GP - CONTACTORother_service
1036101CONTROL GP -Aother_service
1037284MOUNTING GP - BREAKERother_service
1047942FASTENER GPother_service
1048615BASE GP - FUEL TANK &other_service
1059710LINES GP - OIL DRAINother_service
1069931LINES GP - DRAINother_service
1080723HARNESS GP - WIRINGother_service
1095264PANEL AR - CONTROLother_service
1114219MOUNTING GP - CONTROL PANELother_service
1114421ACTUATOR AS - 524 GOVERNORother_service
1117534MOUNTING GP - ACTUATORother_service
117-0456Crankshaft Bareother_service
1172855TRANSFER GPother_service
13094153406 DITA/XQ350 RENTAL PKGother_service
1315455CONTROL ASother_service
1315544RADIATOR GPother_service
1N38763406 DITA ENGINE AR - BASICother_service
249-0433Oxidation Catalyst Assembly - Roundother_service
256-0326Oxidation Catalyst Assembly - Roundother_service
2T8141387 KW @ 1800 RPM (519 BHP)other_service
2W8198SOLENOID SHUTOFF - ETR 24 Vother_service
3N4858SHAFTother_service
3N4860CAM LINERother_service
3N4862WEAR PLATEother_service
4N3093BLOWER FANother_service
4N6540MOUNTING GP-HEATERother_service
4N9778UPPER RADIATOR CONNECTIONSother_service
4P3359COUPLINGother_service
4P6247PICK UP GP - MAGNETICother_service
4P7610PICK UP GP - MAGNETICother_service
4P9687SR4 GENERATOR AR-POWER (60HZ)other_service
4W1727COVER GPother_service
4W5828AIR INLET HOODother_service
5P2506LITERATURE GP - ENGLISHother_service
5P2586OIL - BULK - ONE LITERother_service
6I0371ENCLOSURE GPother_service
6L2927DRY ELBOWother_service
6N8878FUEL PRESSURE GAUGEother_service
7E5996Connecting rodother_service
7E6247JACKET WATER HEATERother_service
7N8840FAN DRIVE 0.800 RATIOother_service
7W1340MOUNTING GP - ALTERNATORother_service
8N1726Connecting rodother_service
9G4231BATTERY - 12 VOLTother_service
9N3368Coolant Conditioner Element—If Equippedother_service
BER0005BEARINGother_service
CAMSET0018CAM LINERother_service
DZ111166(3402) (3404) (3408) (3409) (974G)other_service
JSK002601SERVICE KITother_service
M-24855131 Regulator - 180ºCother_service
P-36Engine Brake Housing Assembly Group Frontother_service
PEHP3036Cat Reman Short and Long Blocksother_service
PEHP3036-01Cat Reman Short and Long Blocksother_service
SHA0046SHAFTother_service
WER0010WEAR PLATEother_service
g00104545Illustration 4other_service
g00107406Illustration 1: Safety message for the clutch located on the clutch housing (if equipped).other_service
g00107407Illustration 2: Safety message for rotating gears that can cause entanglement of the fingers and hands.other_service
g00291056Illustration 20 (Electronic Overspeed Switch with Cranking Termination)other_service
g00293335Illustration 19 (Magnetic pickup, Flywheel housing)other_service
g00367054Engine Liftingother_service
g00455028Improper jumper cable connections can cause an explosion resulting in personal injury.other_service
g00524010Typical location of the batteries in the battery compartmentother_service
g00524148Lift eyes or tank can fail when lifting tank containing fluids resulting in possible personal injury. Drain tank of all fluids before lifting.other_service
g00687600Always use a board or cardboard when you check for a leak. Leaking fluid that is under pressure can penetrate body tissue. Fluid penetration can cause serious injury and possible death. A pin hole leak can cause severe injury. If fluid is injected into your skin, you must get treatment immediately. Seek treatment from a doctor that is familiar with this type of injury.other_service
g00702020Wear a hard hat, protective glasses, and other protective equipment, as required.other_service
g00702022Illustration 5: Asbestos Informationother_service
g00704000Illustration 11other_service
g00706404Improperly disposing of waste can threaten the environment. Potentially harmful fluids should be disposed of in accordance with local regulations.other_service
g00722253Illustration 12other_service
i00061495Information Plateother_service
i00062369Engine Stoppingother_service
i00610276Reference Numbersother_service
i00621349Standard Torque for Inch Fastenersother_service
i00621350Standard Torque for Metric Fastenersother_service
i00777190Drain tank of all fluids before lifting.other_service
i00826199Engine Identificationother_service
i01072501Before Starting Engineother_service
i01103904Engine Startingother_service
i01193826Emissions Certification Filmother_service
i01359622Mounting and Dismountingother_service
i01359666Crushing Prevention and Cutting Preventionother_service
i01359759General Hazard Informationother_service
i01368857Safety Signs and Labelsother_service
i01369271Model View Illustrationsother_service
i01369284Engine Descriptionother_service
i01369380Serial Number Plateother_service
i01369505Gauges and Indicatorsother_service
i01369587Engine Features and Controlsother_service
1313533PUMP GP - GOVERNORpump
5N4852PUMP ASSYpump
JPR-CT3406PUMP ASSYpump
M-10525081 Fuel Priming Pumppump
M-1354926Water Pumppump
M-1375541Fuel Priming Pumppump
M-1W1700Fuel Transfer Pumppump
M-4N733Oil Pumppump
3N4863OIL SEALseal
3N5632M-SEALseal
M-1090077Seal O-Ringseal
M-1425867Front Crankshaft Sealseal
M-1425868Rear Crankshaft Sealseal
M-16324786 6 Valve Stem Seal - Exhaustseal
M-2S2251Nozzle Adapter Seal Ringseal
M-3S9643Regulator Sealseal
M-5H7153Nozzle Adapter Seal Ringseal
M-5S2106Fan Hub Sealseal
M-7F2122Fan Hub O-Ring Sealseal
M-8M5249Nozzle Adapter Seal Ringseal
MCBKT7000Nozzle Seal Kit - 7000 Seriesseal
MCSSET0007M-SEAL(WITH SNAP-RING)seal
ESD5526Speed Controllerspeed_controller
4N1062ELECTRIC STARTING MOTOR LH 24Vstarter
M-1209453Regulator - 170°thermostat
M-2477133Regulator - 190°thermostat
W200-1003U-cup Sealu_cup_seal

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Filters for this engine

  • Air filter: Caterpillar 6T0988 Caterpillar 1212760 Caterpillar 612506 Caterpillar 6I0274 Donaldson P527595 Donaldson P543107 Donaldson P532506 Donaldson P532474
  • Fuel filter: Caterpillar 3089679 Caterpillar 3I1333 Donaldson P551311 Donaldson P551712 Wix 33674NP Wix 33374
  • Oil filter: Caterpillar 3890434 Caterpillar 1W3300 Caterpillar 2P4005 Donaldson P551808 Donaldson P554004 Donaldson P554005 Wix 57792 Wix 51791

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

Also used in

12
  • Case/Case Ih LION — Tractor
  • Case/Case Ih PANTHER — Tractor
  • Caterpillar 824C — Dozer Wheeled
  • Caterpillar 825C — Compactor
  • Caterpillar D8R — Dozer Tracked
  • Caterpillar PM465 — Planer
  • Caterpillar RM350 — Road Stabilizer
  • Caterpillar RR250B — Road Stabilizer
  • Caterpillar SS250B — Road Stabilizer
  • Driltech D40K — Drilling Equipment
  • Ford CL-9000 — Truck
  • Ford CLT-9000 — Truck

Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.

Common questions

What is the oil capacity of the Caterpillar 3406C-TA?

The Caterpillar 3406C-TA engine has an oil capacity of 38.0 liters.

What is the displacement of the Caterpillar 3406C-TA?

The Caterpillar 3406C-TA has a displacement of 14.64 liters with 6 cylinders.

Which generators use the Caterpillar 3406C-TA engine?

The Caterpillar 3406C-TA powers 4 generator set(s), including Caterpillar 3406C TA, Caterpillar AUXILIAR, Caterpillar DM2273, Caterpillar DM7525.

What oil filter does the Caterpillar 3406C-TA use?

The Caterpillar 3406C-TA uses oil filter part numbers Caterpillar 3890434, Caterpillar 1W3300, Caterpillar 2P4005.

What fuel filter does the Caterpillar 3406C-TA use?

The Caterpillar 3406C-TA uses fuel filter part numbers Caterpillar 3089679, Caterpillar 3I1333, Donaldson P551311.

What air filter does the Caterpillar 3406C-TA use?

The Caterpillar 3406C-TA uses air filter part numbers Caterpillar 6T0988, Caterpillar 1212760, Caterpillar 612506.