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Caterpillar 3406C Engine Engine

The Caterpillar 3406C is a 14.6 L 6-cylinder petroleum engine rated at 2100 rpm, producing up to 362 kW. It powers generator sets from Caterpillar, including the 3406 and 3406C Industrial Engine. It holds 38 L (10.0 gal) of oil and 90.8 L (24.0 gal) of coolant.

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

14.6 L
Displacement
6
Cylinders
2100 rpm
Rated speed
362 kW
Gross power

Engine specifications

Oil capacity38.0 L
Coolant capacity90.8 L
Displacement14.6 L
Cylinders6
AspirationPetroleum
Rated speed2100 rpm
Gross power362 kW

Generator sets powered by this engine

2
Caterpillar 3406Caterpillar 3406C Industrial Engine

Parts cataloged across the Caterpillar 3406C family

186
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
7E5996Connecting rodsconnecting_rod
8N1726Connecting rodsconnecting_rod
i01329129Coolantcoolant_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
DZ111166(USE WITH DZ113373 974G) (974C)fuel_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-1P436Fuel Priming Pump Gasketgasket
M-3639022Gasket Set - Central & Lowergasket
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
7E6247JACKET WATER HEATERother_service
7N8840FAN DRIVE 0.800 RATIOother_service
7W1340MOUNTING GP - ALTERNATORother_service
9G4231BATTERY - 12 VOLTother_service
9N3368Coolant Conditioner Element—If Equippedother_service
BER0005BEARINGother_service
CAMSET0018CAM LINERother_service
JSK002601SERVICE KITother_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
g00107406The warning label for the clutch is located on the clutch housing (if equipped).other_service
g00107407Rotating gears can cause finger entanglement or hand entanglement. Do not service this component without first reading the operator manual.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. When work is performed around an engine that is operating, wear protective devices for ears in order to help prevent damage to hearing. Do not wear loose clothing or jewelry that can snag on controls or on other parts of the engine. Ensure that all protective guards and all covers are secured in place on the engine. Never put maintenance fluids into glass containers. Glass containers can break. Use all cleaning solutions with care. Report all necessary repairs.other_service
g00702022Caterpillar equipment and replacement parts that are shipped from Caterpillar are asbestos free. Caterpillar recommends the use of only genuine Caterpillar replacement parts. Use the following guidelines when you handle any replacement parts that contain asbestos or when you handle asbestos debris.other_service
g00704000Illustration 9other_service
g00706404Improperly disposing of waste can threaten the environment. Potentially harmful fluids should be disposed of according to 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
i01359892Safety Section - Fire Prevention and Explosion Preventionother_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-1052508Fuel 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-1632478Valve Stem Sealseal
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
4N1062ELECTRIC STARTING MOTOR LH 24Vstarter
M-1209453Regulator - 170°thermostat
M-2477133Regulator - 190°thermostat
M-2485513Regulator - 180°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.

Aftermarket parts that fit this engine

60
6I-2503 Amazon eBay $21.00 6I-2504 ddtp $48.00 325C sinocmp $6.00 330B yemparts $32.22 GT500201B yemparts $1220.52 10R-0423 FridayParts $1079.19 3406E atldiesel $0.34 826G sinocmp $129.00 825G sinocmp $129.00 980G yemparts $58.59 4MF-721 yemparts $1609.97 1W-3728 FridayParts $867.99 0R-5759 FridayParts $867.99 3406B atldiesel $0.22 3406C atldiesel $0.73 1W4845 atldiesel $30.39 1W8845 find 245B yemparts $74.42 245D yemparts $54.39 109-3622 yemparts $725.24 3176C kuduparts $18.00 572R yemparts $113.82 587R yemparts $529.40 D10N yemparts $100.05 D10R yemparts $80.42 657B yemparts $164.26 621G yemparts $44.95 623G yemparts $92.01 627G yemparts $80.13 133-0125 FridayParts $488.15 2W-1008 FridayParts $488.15 7C-3039 FridayParts $488.15 771C yemparts $150.37 771D yemparts $62.40 814B yemparts $111.78 824G yemparts $111.78 834B yemparts $90.89 980C yemparts $40.88 988B yemparts $40.88 623E yemparts $252.54 627E yemparts $44.96 2G-0401 FridayParts $35.70 3E-9343 FridayParts $35.70 918F yemparts $42.24 992D yemparts $40.76 3E-6466 FridayParts $73.99 162-2073 FridayParts $73.99 910E yemparts $42.24 914G yemparts $42.24 924F FridayParts $78.60 962G yemparts $54.51 107-4401 FridayParts $43.99 3054C woodline $9.24 3056E woodline $3.85 928G yemparts $106.33 938F yemparts $54.51 970F yemparts $31.48 107-4402 FridayParts $39.99 928F yemparts $54.51 950G yemparts $54.51

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

Common questions

What is the oil capacity of the Caterpillar 3406C?

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

What is the displacement of the Caterpillar 3406C?

The Caterpillar 3406C has a displacement of 14.6 liters with 6 cylinders.

Which generators use the Caterpillar 3406C engine?

The Caterpillar 3406C powers 2 generator set(s), including Caterpillar 3406, Caterpillar 3406C Industrial Engine.