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MTU 12V 4000 G43 Engine

Name: MTU 12V 4000 G43 Engine
Brand: MTU

The MTU 12V 4000 G43 is a 57.2 L 12-cylinder turbocharged, aftercooled engine rated at 1800 rpm, producing up to 1402 kW. It powers generator sets from Hipower, Kohler and MTU, including the HMW 1550 T6, 1250REOZDD, 1500REOZDD and 12V4000 DS1250. It holds 253 L (66.8 gal) of oil and 570 L (150.6 gal) of coolant.

Also known as: MTU 12V 4000 G43

Part of the MTU 12V4000 engine family — 62 variants share parts & fitment.

57.2 L

Displacement

Cylinders

1800 rpm

Rated speed

1402 kW

Gross power

On this pageService parts Specs Generator sets Maintenance Filter cross-reference FAQ Torque & specs Wiring

Service parts for the 12V 4000 G43

The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.

Fuel system

1 required

P550849Fuel filterfind

Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.

Engine specifications

Oil capacity	253.0 L
Coolant capacity	570.0 L
Displacement	57.2 L
Cylinders	12
Aspiration	Turbocharged, aftercooled
Rated speed	1800 rpm
Gross power	1402 kW

Generator sets powered by this engine

Shared across brands: Hipower, Kohler, MTU

Hipower HMW 1550 T6 Kohler 1250REOZDD Kohler 1500REOZDD MTU 12V4000 DS1250MTU DP 1430 D6S RWMTU DS 1665 D6S RWMTU MTU 12V4000 DS1250

How to read your MTU engine serial & model number →

Maintenance schedule

Item	Spec	Capacity	Part #
Air filter	Dry		—
Fuel filter			33763	Amazon $30.19 eBay $29.99 PartsGeek $29.97
Oil filter	Spin-On		—
Battery	Battery Box and Cables		—
Belt	Blower Fan and Fan Drive, Radiator - Unit Mounted, Electric Starting Motor - 24V, Jacket Water Pump, Inter Cooler Water Pump		—
Coolant		583.0 L	—
Coolant filter	N/A		—
Oil		260.0 L	—
Spark plug			—

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

Service specifications

Type	Item	Value	Unit
Other	10 in. weld flange bolt circle diameter B	361.95	mm (14.25 in.)
Other	10 in. weld flange outside diameter C	406.4	mm (16.0 in.)
Other	10 in. weld flange quantity of bolts / bolt hole diameter D	12, 25.40	mm (1.00 in.)
Other	12 in. weld flange bolt circle diameter B	431.80	mm (17.00 in.)
Other	12 in. weld flange outside diameter C	482.6	mm (19.0 in.)
Other	12 in. weld flange quantity of bolts / bolt hole diameter D	12, 25.40	mm (1.00 in.)
Other	14 in. weld flange bolt circle diameter B	476.25	mm (18.75 in.)
Other	14 in. weld flange outside diameter C	533.4	mm (21.0 in.)
Other	14 in. weld flange quantity of bolts / bolt hole diameter D	12, 28.58	mm (1.13 in.)
Other	16 in. weld flange bolt circle diameter B	539.75	mm (21.25 in.)
Other	16 in. weld flange outside diameter C	596.9	mm (23.5 in.)
Other	16 in. weld flange quantity of bolts / bolt hole diameter D	16, 28.58	mm (1.13 in.)
Other	18 in. weld flange bolt circle diameter B	577.85	mm (22.75 in.)
Other	18 in. weld flange outside diameter C	635.0	mm (25.0 in.)
Other	18 in. weld flange quantity of bolts / bolt hole diameter D	16, 31.75	mm (1.25 in.)
Other	20 in. weld flange bolt circle diameter B	635.00	mm (25.00 in.)
Other	20 in. weld flange outside diameter C	698.5	mm (27.5 in.)
Other	20 in. weld flange quantity of bolts / bolt hole diameter D	20, 31.75	mm (1.25 in.)
Other	5 in. weld flange bolt circle diameter B	215.90	mm (8.50 in.)
Other	5 in. weld flange outside diameter C	241.30	mm (9.50 in.)
Other	5 in. weld flange quantity of bolts / bolt hole diameter D	8, 22.23	mm (0.88 in.)
Other	6 in. weld flange bolt circle diameter B	254.0	mm (10.0 in.)
Other	6 in. weld flange outside diameter C	279.4	mm (11.0 in.)
Other	6 in. weld flange quantity of bolts / bolt hole diameter D	8, 22.23	mm (0.88 in.)
Other	8 in. weld flange bolt circle diameter B	298.45	mm (11.75 in.)
Other	8 in. weld flange outside diameter C	342.9	mm (13.5 in.)
Other	8 in. weld flange quantity of bolts / bolt hole diameter D	8, 22.23	mm (0.88 in.)
Other	Weld flange angle A (10, 12, 14 in. nominal pipe size)	30	deg.
Other	Weld flange angle A (16, 18, 20 in. nominal pipe size)	22.5	deg.
Other	Weld flange angle A (5, 6, 8 in. nominal pipe size)	45	deg.
Temperature	Jacket water heater adjustable thermostat	32 to 55	°C

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

Voltage	Phase	Connection	Leads	Notes
380/400/415				Standard scope voltage, 50 Hz (S1600/S2000/S4000)
380/440/480				Standard scope voltage, 60 Hz (S1600/S2000/S4000)
400/230				Standard scope voltage, 1600 series, 50 Hz
440/480				Alternator voltages, 60 Hz
480/277				Standard scope voltage, 1600 series, 60 Hz

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Parts cataloged across the MTU 12V4000 family

Part #	Description	Category
WM00076	Air filter element	air_filter
WM00086	Easy-change fuel filter	fuel_filter
WM00067	Oil filter element	oil_filter
3082751	Reman engine	other_service

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

Fuel filter: Donaldson P550849 Wix 33763

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

Also used in

Hitachi EH3000 — Haul Truck
Hitachi EH3500 — Haul 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 MTU 12V 4000 G43?

The MTU 12V 4000 G43 engine has an oil capacity of 253.0 liters.

What is the displacement of the MTU 12V 4000 G43?

The MTU 12V 4000 G43 has a displacement of 57.2 liters with 12 cylinders.

Which generators use the MTU 12V 4000 G43 engine?

The MTU 12V 4000 G43 powers 7 generator set(s), including Hipower HMW 1550 T6, Kohler 1250REOZDD, Kohler 1500REOZDD, MTU 12V4000 DS1250, MTU DP 1430 D6S RW.

What fuel filter does the MTU 12V 4000 G43 use?

The MTU 12V 4000 G43 uses fuel filter part numbers Donaldson P550849, Wix 33763.