Diesel engine 403D-11G

3-cylinderwater coolingStage III

Overview
The Perkins 403D-11G is a 3-cylinder diesel engine designed for electric power generation applications. It offers high power density and fuel efficiency in a compact ElectropaK package suited to both unregulated and regulated territories where staged emissions compliance is required.

Key Specs

• Gross Mechanical Output: 8–18 kWm
• Typical Electrical Output: 9–20 kVA (7–16 kWe)
• Rated Speeds: 1500 / 1800 / 3000 rpm
• Displacement: 1.1 L — 3 inline cylinders
• Emissions: UN ECE R96 Stage IIIA (constant speed) and U.S. EPA Stationary Emergency Engine

Features at a glance

• Compact and flexible: ElectropaK layout minimises footprint and eases integration where aftertreatment or installation space is limited. Available configurations support specific speed/frequency requirements.
• Efficient, quiet and durable: 3-cylinder architecture and indirect-injection combustion deliver favourable fuel consumption and reduced noise, suitable for urban or noise-sensitive installations.
• Lower operating costs: Simple indirect injection fuel system, proven mechanical governor, standard service points and a common platform reduce maintenance complexity and lifecycle cost.

Product specifications
Total power range
Gross Mechanical Output: 8–18 kWm
Typical Electrical Output: 9–20 kVA (7–16 kWe)
Rated Speed: 1500 / 1800 / 3000 rpm

Emission standards
UN ECE R96 Stage IIIA (constant speed) and U.S. EPA Stationary Emergency Engine

50 Hz typical electrical output
Prime: 9.0–18 kVA
Standby: 10.0–20 kVA

60 Hz typical electrical output
Prime: 9 kWe
Standby: 9.9 kWe

General
Number of cylinders: 3 inline
Bore x Stroke: 77 mm x 81 mm
Displacement: 1.1 L
Compression ratio: 23.0:1
Aspiration: Naturally aspirated
Combustion system: Indirect injection
Rotation (from flywheel end): Anti-clockwise
Cooling: Liquid
Typical alternator efficiency: 86–87%
Switchable frequency/speed: No

ElectropaK dimensions
Length: 776 mm
Width: 449 mm
Height: 770 mm
Dry weight (ElectropaK): 129 kg

Standard equipment (403D-11G)
Air inlet system

• Mounted air filter

Control system

• 12 V Electronic Shut Off Solenoid (ESOS) energised to run
• 12 V starter motor and 12 V 15 A alternator with DC output
• Glow plug cold start aid and heater/starter switch
• Oil pressure and coolant temperature switches

Cooling system

• Mounted radiator, piping and guards
• Thermostatically controlled system with belt-driven coolant pump and pusher fan

Flywheel and flywheel housing

• 1500/1800 rpm: High inertia flywheel to SAE J620 Size 6½ heavy flywheel housing SAE 5 Long
• 3000 rpm: High inertia flywheel to SAE J620 Size 6½ light flywheel housing SAE 5 Short

Fuel system

• Mechanically governed cassette-type fuel injection pump
• Split element fuel filter

General

• Front and rear engine mounting brackets

Oil system

• Wet steel sump with filler and dipstick
• Spin-on full flow lubricating oil filter

Definitions / Notes
Prime power: Power available at variable load in lieu of a main power network (10% overload permitted for 1 hour in every 12).
Standby power: Power available for emergency use in the event of main network failure (no overload permitted).
*Final dimensions depend on selected options. ESE (1800 rpm) refers to certified Emergency Stationary Equipment.