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Home›Caterpillar›Caterpillar 3406

Caterpillar 3406 Generator Set

The Caterpillar 3406 is a 240 kW (500 kVA) Diesel standby generator set powered by a Caterpillar 3406C engine. It is available at 120/208 V and 208/240 V, 3-phase, 50 Hz and rated 56.7 A. It holds about 34.1 L (9.0 gal) of oil and 23.5 L (6.2 gal) of coolant, with a maximum ambient rating of 76.66 °C. The set measures 1634×64.3×833 mm (64.3×2.5×32.8 in) and weighs about 1356 kg (2989 lb).

240 kW
Standby
14.6 L
Displacement
34.1 L
Oil capacity
5
Document types

How to read your Caterpillar serial & model number →

Specifications

FuelDiesel
Frequency50.0 Hz
Standby power240 kW
Standby kVA500
Prime power240 kW
EmissionsIMO compliant
ControllerEMCP
Oil capacity34.1 L
AlternatorCaterpillar SR4 (4-pole, Class H insulation)
Voltage options120/208 V, 208/240 V
Phase3
Rated current[56.7, 64, 71] A
Power factor0.8
Circuit breaker[90, 100, 110] A
Coolant capacity23.5 L
Max ambient76.66 °C
Dimensions (L×W×H)1634×64×833 mm
Dry weight1356 kg

Engine

Caterpillar 3406C
Oil capacity38.0 L
Coolant capacity90.8 L
Displacement14.6 L
AspirationPetroleum
Rated speed2100 rpm

Maintenance & consumables

for the Caterpillar 3406C
ItemSpecCapacityPart #Interval
Air filterReplace air filter at each oil change and every 250 hours or as needed.612506250 hr PartsGeek $66.97
Fuel filter—1000 hr find
Oil filter—250 hr find
Belt—250 hr find
Coolant20.8 L—1000 hr
Oil38.0 L—250 hr

Compatible filters for the Caterpillar 3406C — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Fuel filter: Caterpillar 3089679 Caterpillar 3I1333 Donaldson P551311 Donaldson P551712 Wix 33674NP
  • Oil filter: Caterpillar 3890434 Caterpillar 2P4005 Donaldson P551808 Donaldson P554005 Wix 57792

Common questions

What is the power rating of the Caterpillar 3406?

The Caterpillar 3406 is rated 240 kW standby (500.0 kVA).

What engine does the Caterpillar 3406 use?

The Caterpillar 3406 is powered by the Caterpillar 3406C engine.

What fuel does the Caterpillar 3406 use?

The Caterpillar 3406 runs on Diesel.

What is the oil capacity of the Caterpillar 3406?

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

What alternator does the Caterpillar 3406 use?

The Caterpillar 3406 uses a Caterpillar SR4 alternator. It has 4 poles. Insulation class H.

What oil filter does the Caterpillar 3406 use?

The Caterpillar 3406 uses oil filter part numbers CATERPILLAR 3890434, CATERPILLAR 2P4005.

What fuel filter does the Caterpillar 3406 use?

The Caterpillar 3406 uses fuel filter part numbers CATERPILLAR 3089679, CATERPILLAR 3I1333.

What air filter does the Caterpillar 3406 use?

The Caterpillar 3406 uses air filter part number 612506.

Parts

188
Part #DescriptionQtySystem
1282922CATWater Pump Gasket Set - 0.4 lbs/ 0.18 kgs, 5" Length, 27mm Width, 27mm Depth, 11 Application: 34001Gasket PartsGeek
1313533PUMP GP - GOVERNOR1Pump PartsGeek
1555619CATFlywheel Housing Gasket - 34061Gasket PartsGeek
1609874CATSingle Cylinder Liner Gasket Set - 3406/ 3412 0.1 lbs/ 0.04 kgs1Gasket PartsGeek
1R-0749High Efficiency Fuel Filter1Fuel filter Amazon eBay $57.96 PartsGeek
1R-0750High Efficiency Fuel Filter1Fuel filter PartsGeek FridayParts $41.50
1R-0751High Efficiency Fuel Filter1Fuel filter Amazon eBay $40.00 PartsGeek
1R-0755High Efficiency Fuel Filter1Fuel filter PartsGeek FridayParts $55.99
1R-0756High Efficiency Fuel FilterFuel filter PartsGeek FridayParts $34.98
1R-0766High Efficiency Fuel Filter1Fuel filter PartsGeek
1W4878BELT GUARD - ALTERNATOR PULLEY1Belt PartsGeek
1W7411CLEANER GP-AIR(D)(HEAVY DUTY)1Air filter PartsGeek
2161252CATSingle Cylinder Head Gasket Set - 3406/ 3406E1Gasket PartsGeek
3N4859IMPELLER1Impeller PartsGeek
3N4861GASKET1Gasket PartsGeek
3N4863OIL SEAL1Seal PartsGeek
3N5632M-SEAL1Seal PartsGeek
4N1062ELECTRIC STARTING MOTOR LH 24V1Starter PartsGeek
50-ampAlternator1Alternator PartsGeek
5N4852PUMP ASSY1Pump PartsGeek
6N9294CHARGING ALTERNATOR 24V 35 AMP1Alternator PartsGeek FridayParts $237.90
8N9759MOUNTING GP - AIR CLEANER1Air filter PartsGeek
9N2366Cooling System Conditioner group maintenance filter elementFilter PartsGeek FridayParts $295.00
DM-3E3322GASKET SET, FUEL SYSTEM 3406Gasket PartsGeek
DM-3E7474GASKET SET, FUEL SYSTEM 3406Gasket PartsGeek
DM-3E7485GASKET SET, FUEL SYSTEM 3406Gasket PartsGeek
DM-3E7495GASKET SET, FUEL SYSTEM 3406Gasket PartsGeek
DM-6I3066GASKET, CYL. HD. 3406Gasket PartsGeek
DM-8C4452GASKET SET, FUEL SYSTEM 3406Gasket PartsGeek
DM-8C6538GASKET SET, FUEL SYSTEM 3406Gasket PartsGeek
DM-8C6772GASKET SET, FUEL SYSTEM 3406Gasket PartsGeek
DM-8C8490GASKET SET, FUEL SYSTEM 3406Gasket PartsGeek
DM-8C8764GASKET SET, FUEL SYSTEM 3406Gasket PartsGeek
ESD5526Speed ControllerSpeed controller PartsGeek
JPR-CT3406PUMP ASSY1Pump PartsGeek
M-1007551Fuel Nozzle - 7000 Series6Injector PartsGeek
M-1007556Fuel Nozzle - 7000 Series6Injector PartsGeek
M-1007557Fuel Nozzle - 7000 Series6Injector PartsGeek
M-1007558Fuel Nozzle - 7000 Series6Injector PartsGeek
M-10525081 Fuel Priming Pump1Pump PartsGeek
M-1090077Seal O-Ring2Seal PartsGeek
M-1209453Regulator - 170°1Thermostat PartsGeek
M-1279792Fuel Nozzle - 7000 Series6Injector PartsGeek
M-1279793Fuel Nozzle - 7000 Series6Injector PartsGeek
M-1282922Water Pump Mounting Gasket1Gasket PartsGeek
M-1311243Fuel Nozzle - 7000 Series6Injector PartsGeek
M-1354926Water Pump1Pump PartsGeek
M-1375541Fuel Priming Pump1Pump PartsGeek
M-1425867Front Crankshaft Seal1Seal PartsGeek
M-1425868Rear Crankshaft Seal1Seal PartsGeek
M-1609874Gasket Set - Cylinder Liner Packing6Gasket PartsGeek
M-16324786 6 Valve Stem Seal - Exhaust24Seal PartsGeek
M-1P4361 Fuel Priming Pump Gasket1Gasket PartsGeek
M-1W1700Fuel Transfer Pump1Pump PartsGeek
M-2477133Regulator - 190°ARThermostat PartsGeek
M-2S2251Nozzle Adapter Seal Ring6Seal PartsGeek
M-3639022Gasket Set - Front StructureGasket PartsGeek
M-3S9643Regulator SealARSeal PartsGeek
M-4N1151Oil Pan GasketARGasket PartsGeek
M-4N1151-6Oil Pan GasketARGasket PartsGeek
M-4N1156Gasket2Gasket PartsGeek
M-4N7253Nozzle Adapter Gasket6Gasket PartsGeek
M-4N733Oil Pump1Pump PartsGeek
M-4W7017Fuel Nozzle - 7000 Series6Injector PartsGeek
M-4W7018Fuel Nozzle - 7000 Series6Injector PartsGeek
M-4W7022Fuel Nozzle - 7000 Series6Injector PartsGeek
M-5H7153Nozzle Adapter Seal Ring6Seal PartsGeek
M-5P5678-6Valve Cover Gasket1Gasket PartsGeek
M-5P5678-9Valve Cover Gasket1Gasket PartsGeek
M-5S2106Fan Hub Seal1Seal PartsGeek
M-7C307Gasket1Gasket PartsGeek
M-7F2122Fan Hub O-Ring Seal1Seal PartsGeek
M-7W7026Fuel Nozzle - 7000 Series6Injector PartsGeek
M-7W7032Fuel Nozzle - 7000 Series6Injector PartsGeek
M-7W7037Fuel Nozzle - 7000 Series6Injector PartsGeek
M-7W7040Fuel Nozzle - 7000 Series6Injector PartsGeek
M-7W7041Fuel Nozzle - 7000 Series6Injector PartsGeek
M-7W7042Fuel Nozzle - 7000 Series6Injector PartsGeek
M-7W7043Fuel Nozzle - 7000 Series6Injector PartsGeek
M-7W7044Fuel Nozzle - 7000 Series6Injector PartsGeek
M-8M5249Nozzle Adapter Seal Ring6Seal PartsGeek
M-9L6884Fuel Nozzle - Capsule6Injector PartsGeek
M-9N3246Fuel Nozzle - Capsule6Injector PartsGeek
MCB3406031Overhaul Gasket Set1Gasket PartsGeek
MCB3406032In-Chassis Gasket Set1Gasket PartsGeek
MCB3406033Cylinder Head Set1Gasket PartsGeek
MCBKT7000Nozzle Seal Kit - 7000 SeriesARSeal PartsGeek
MCSSET0007M-SEAL(WITH SNAP-RING)1Seal PartsGeek
W200-1000Hydraulic Cylinder Reseal Service Kit1Hydraulic filter PartsGeek
W200-1001Cylinder Rod Seal - Wiper Seal1Cylinder rod seal PartsGeek
W200-1002Buffer Seal1Buffer seal PartsGeek
W200-1003U-cup Seal1U cup seal PartsGeek
i01206414Standard Torque for Constant Torque Hose ClampsHose PartsGeek
i01206505Standard Torque for Worm Drive Band Hose ClampsHose PartsGeek
i01329129CoolantCoolant filter PartsGeek
i01359892CoolantCoolant filter PartsGeek
0P8708POWER PLUS RENTL FINANCE PRGM1Service part / kit PartsGeek
0P94840P948401JUL98PRC PROPGM641-61Service part / kit PartsGeek
1031956MOUNTING GP - CONTACTOR1Service part / kit PartsGeek
1036101CONTROL GP -A1Service part / kit PartsGeek
1037284MOUNTING GP - BREAKER1Service part / kit PartsGeek
1047942FASTENER GP1Service part / kit PartsGeek
1048615BASE GP - FUEL TANK &1Service part / kit PartsGeek
1059710LINES GP - OIL DRAIN1Service part / kit PartsGeek
1069931LINES GP - DRAIN1Service part / kit PartsGeek
1080723HARNESS GP - WIRING1Service part / kit PartsGeek
1095264PANEL AR - CONTROL1Service part / kit PartsGeek
1114219MOUNTING GP - CONTROL PANEL1Service part / kit PartsGeek
1114421ACTUATOR AS - 524 GOVERNOR1Service part / kit PartsGeek
1117534MOUNTING GP - ACTUATOR1Service part / kit PartsGeek
117-0456Crankshaft Bare1Service part / kit PartsGeek
1172855TRANSFER GP1Service part / kit PartsGeek
13094153406 DITA/XQ350 RENTAL PKG1Service part / kit PartsGeek
1315455CONTROL AS1Service part / kit PartsGeek
1315544RADIATOR GP1Service part / kit PartsGeek
1N38763406 DITA ENGINE AR - BASIC1Service part / kit PartsGeek
249-0433Oxidation Catalyst Assembly - RoundService part / kit PartsGeek
256-0326Oxidation Catalyst Assembly - RoundService part / kit PartsGeek
2T8141387 KW @ 1800 RPM (519 BHP)1Service part / kit PartsGeek
2W8198SOLENOID SHUTOFF - ETR 24 V1Service part / kit PartsGeek
3N4858SHAFT1Service part / kit PartsGeek
3N4860CAM LINER1Service part / kit PartsGeek
3N4862WEAR PLATE2Service part / kit PartsGeek
4N3093BLOWER FAN1Service part / kit PartsGeek
4N6540MOUNTING GP-HEATER22Service part / kit PartsGeek
4N9778UPPER RADIATOR CONNECTIONS1Service part / kit PartsGeek
4P3359COUPLING1Service part / kit PartsGeek
4P6247PICK UP GP - MAGNETIC1Service part / kit PartsGeek
4P7610PICK UP GP - MAGNETIC1Service part / kit PartsGeek
4P9687SR4 GENERATOR AR-POWER (60HZ)1Service part / kit PartsGeek
4W1727COVER GP1Service part / kit PartsGeek
4W5828AIR INLET HOOD1Service part / kit PartsGeek
5P2506LITERATURE GP - ENGLISH1Service part / kit PartsGeek
5P2586OIL - BULK - ONE LITER1Service part / kit PartsGeek
6I0371ENCLOSURE GP1Service part / kit PartsGeek
6L2927DRY ELBOW1Service part / kit PartsGeek
6N8878FUEL PRESSURE GAUGE1Service part / kit PartsGeek
7E5996Connecting rodService part / kit PartsGeek
7E6247JACKET WATER HEATER1Service part / kit PartsGeek
7N8840FAN DRIVE 0.800 RATIO1Service part / kit PartsGeek
7W1340MOUNTING GP - ALTERNATOR1Service part / kit PartsGeek
8N1726Connecting rodService part / kit PartsGeek
9G4231BATTERY - 12 VOLT1Service part / kit PartsGeek
9N3368Coolant Conditioner Element—If Equipped1Service part / kit Amazon eBay $17.95 PartsGeek
BER0005BEARING1Service part / kit PartsGeek
CAMSET0018CAM LINER1Service part / kit PartsGeek
DZ111166(3402) (3404) (3408) (3409) (974G)1Service part / kit PartsGeek
JSK002601SERVICE KIT1Service part / kit PartsGeek
M-24855131 Regulator - 180ºC1Service part / kit PartsGeek
P-36Engine Brake Housing Assembly Group FrontService part / kit PartsGeek
PEHP3036Cat Reman Short and Long BlocksService part / kit PartsGeek
PEHP3036-01Cat Reman Short and Long BlocksService part / kit PartsGeek
SHA0046SHAFT1Service part / kit PartsGeek
WER0010WEAR PLATE2Service part / kit PartsGeek
g00104545Illustration 41Service part / kit PartsGeek
g00107406Illustration 1: Safety message for the clutch located on the clutch housing (if equipped).Service part / kit PartsGeek
g00107407Illustration 2: Safety message for rotating gears that can cause entanglement of the fingers and hands.Service part / kit PartsGeek
g00291056Illustration 20 (Electronic Overspeed Switch with Cranking Termination)Service part / kit PartsGeek
g00293335Illustration 19 (Magnetic pickup, Flywheel housing)Service part / kit PartsGeek
g00367054Engine LiftingService part / kit PartsGeek
g00455028Improper jumper cable connections can cause an explosion resulting in personal injury.Service part / kit PartsGeek
g00524010Typical location of the batteries in the battery compartmentService part / kit PartsGeek
g00524148Lift eyes or tank can fail when lifting tank containing fluids resulting in possible personal injury. Drain tank of all fluids before lifting.Service part / kit PartsGeek
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.1Service part / kit PartsGeek
g00702020Wear a hard hat, protective glasses, and other protective equipment, as required.1Service part / kit PartsGeek
g00702022Caterpillar equipment and replacement parts that are shipped from Caterpillar are asbestos free.1Service part / kit PartsGeek
g00704000Illustration 81Service part / kit PartsGeek
g00706404Illustration 71Service part / kit PartsGeek
g00722253Illustration 12Service part / kit PartsGeek
i00061495Information PlateService part / kit PartsGeek
i00062369Engine StoppingService part / kit PartsGeek
i00610276Reference NumbersService part / kit PartsGeek
i00621349Standard Torque for Inch FastenersService part / kit PartsGeek
i00621350Standard Torque for Metric FastenersService part / kit PartsGeek
i00777190Drain tank of all fluids before lifting.Service part / kit PartsGeek
i00826199Engine IdentificationService part / kit PartsGeek
i01072501Before Starting EngineService part / kit PartsGeek
i01103904Engine StartingService part / kit PartsGeek
i01193826Emissions Certification FilmService part / kit PartsGeek
i01359622Mounting and DismountingService part / kit PartsGeek
i01359666Crushing Prevention and Cutting Prevention1Service part / kit PartsGeek
i01359759General Hazard InformationService part / kit PartsGeek
i01368857Safety Signs and LabelsService part / kit PartsGeek
i01369271Model View IllustrationsService part / kit PartsGeek
i01369284Engine DescriptionService part / kit PartsGeek
i01369380Serial Number PlateService part / kit PartsGeek
i01369505Gauges and IndicatorsService part / kit PartsGeek
i01369587Engine Features and ControlsService part / kit PartsGeek

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime
Prime251.0
Prime25%20.75.5
Prime40%19.5
Prime50%35.09.2
Prime75%16.3
Prime80%36.7
Prime100%20.8
Standby
Standby25%24.66.5
Standby50%38.510.2
Standby75%53.914.2
Standby100%69.418.3

Available documents

Engine spec — 3406C IND-B 328bkW 1091349 (Caterpillar)Engine spec — 3406C IND-C 269bkW 2100rpm (Caterpillar)Engine spec — 3406C IND-C 269bkW 360bhp 2100rpm (Caterpillar)Engine spec — 3406C IND-C 298bkW 2100rpm 1247634 (Caterpillar)Engine spec — 3406C IND-C 298bkW 2100rpm 7C6843 (Caterpillar)Engine spec — 3406C IND-C 328bkW 1800rpm (Caterpillar)Engine spec — 3406C IND-C 328bkW 1900rpm (Caterpillar)Engine spec — 3406C IND-C 328bkW 2000rpm (Caterpillar)Engine spec — 3406C IND-C 343bkW 460bhp 2100rpm 1304571 (Caterpillar)Engine spec — 3406C IND-D 283bkW 2100rpm 1266205 (Caterpillar)Engine spec — 3406C IND-D 283bkW 2100rpm 4W3791 (Caterpillar)Engine spec — 3406C IND-D 298bkW (Caterpillar)Engine spec — 3406C IND-D 313bkW (Caterpillar)Engine spec — 3406C IND-D 325bkW (Caterpillar)Engine spec — 3406C IND-D 358bkW (Caterpillar)Engine spec — 3406C IND-D 366bkW (Caterpillar)Engine spec — 3406C IND-D 373bkW (Caterpillar)Engine spec — 3406C IND-D 384bkW (Caterpillar)Engine spec — 3406C IND-E 291bkW (Caterpillar)Engine spec — 3406C IND-E 325bkW (Caterpillar)Engine spec — 3406C IND-E 384bkW 1900rpm (Caterpillar)Engine spec — 3406C IND-E 384bkW 2100rpm (Caterpillar)Engine spec — B3 254 fr en (Caterpillar)Engine spec — CAT-3406C-Industrial-Engine-General-Specs (Caterpillar)Engine spec — Cat-3406C-industrial-engine-specs-sheet (Caterpillar)Engine spec — Cat-3406C IND-C 269bkW 1800rpm (Caterpillar)Engine spec — LECH3874-02 (Caterpillar)Engine spec — LEDH1045-02 (Caterpillar)Engine spec — LEGH0002 (Caterpillar)Engine spec — LEHM1611-00 (Caterpillar)Engine spec — LEHW8160-00 (Caterpillar)Engine spec — LEHW8161-00 (Caterpillar)Engine spec — Lecm0608 (Caterpillar)Engine spec — Spec+Sheet+-+Cat+D3406+Propulsion (Caterpillar)Engine spec — lecw2462-06 (Caterpillar)Engine spec — lehh7744 (Caterpillar)Engine spec — lehh8327 (Caterpillar)Engine spec — lehm7457 (Caterpillar)Engine spec — lehm7472 (Caterpillar)Engine spec — lehq4163 (Caterpillar)Engine spec — leht7931 (Caterpillar)Engine spec — lehw4180 (Caterpillar)Engine spec — lehw4181 (Caterpillar)Engine spec — lehw6712 (Caterpillar)Engine spec — lfhh5447 (Caterpillar)Engine spec — lfhh5448 (Caterpillar)Engine spec — lfhh6261 (Caterpillar)Engine spec — lghh6262 (Caterpillar)Engine spec — lshh6258 (Caterpillar)Engine spec — lshh6261 (Caterpillar)Engine spec — lshh6262 (Caterpillar)Spec sheet — 3406-275kW-365-KW-Spec-Sheet (Caterpillar)Spec sheet — CAT-3406C-Generator-Set (Caterpillar)Spec sheet — CAT-SR4B-400kW-6I0064 (Caterpillar)Spec sheet — LEHM1066-00 (Caterpillar)Spec sheet — LEHM1069-00 (Caterpillar)Spec sheet — LEHM1071-00 (Caterpillar)Spec sheet — LEHM1072-00 (Caterpillar)Spec sheet — LEHM1487-00 (Caterpillar)Spec sheet — LEHM1488-00 (Caterpillar)Spec sheet — LEHM1489-00 (Caterpillar)Spec sheet — LEHM1490-00 (Caterpillar)Spec sheet — LEHM1493-00 (Caterpillar)Spec sheet — LEHM1606-00 (Caterpillar)Spec sheet — lehw4116 (Caterpillar)Spec sheet — lghh5438 (Caterpillar)Reference — LFDH5502-01 HR (Caterpillar)Parts manual — Caterpillar-XQ350-CAT-3406-SN-4JK00407-as-shipped (Caterpillar)Parts manual — Interstate-McBee-Caterpillar-Custom-Gasket-Set-Catalog (Caterpillar)Parts manual — KMP-Brand®Parts-Guide-Suitable-for-Caterpillar®By-Product (Caterpillar)Parts manual — pedp7026 (Caterpillar)Service manual — 3406 Diesel Marine Propulsion Engines-Maintenance Intervals (Caterpillar)Service manual — L2001 (Caterpillar)Service manual — SEBU5595-02 M (Caterpillar)