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Our marine engines for auxiliary applications give you low cost of ownership, excellent fuel economy and competitive prices both for engine and parts. Auxiliary engines generate a vessel's on-board electricity, so they need to be quick to start and feature low noise and low emissions. For heavy duty requirements, such as powering a large fishing vessel's electrically driven net haul system, you really need the extra power that a dedicated auxiliary engine will give to you – rather than generating electricity from the propulsion engine.


Vertical inline 4 cylinder

2216 cc

25.2-33.3 kW (@110%)

Based on 400 Series

Power Rating

Minimum Power 33.8 HP 25.2 kW Less
Maximum Power 40.6 HP 30.3 kW Less
Maximum Torque 130.2 lb-ft @ 1800 rpm 176.6 Nm @ 1800 rpm Less
Rated Speed 1500-1800 rpm 1500-1800 rpm Less

Emission Standards

Emissions Meets U.S. EPA Tier 3/EU97/68/EU Stage IIIA Meets U.S. EPA Tier 3/EU97/68/EU Stage IIIA Less


Bore 3.3 in 84.0 mm Less
Stroke 3.9 in 100.0 mm Less
Displacement 135.2 in³ 2.2 l Less
Aspiration Turbocharged Turbocharged Less
Rotation from Flywheel End Anti-clockwise Anti-clockwise Less
Total Lubricating Capacity 2.7 gal (US) 10.6 l Less
Total Coolant Capacity 2.8 gal (US) 10.5 l Less
Cycle 4 stroke 4 stroke Less
Combustion System Indirect injection Indirect injection Less
Number of Cylinders 4 inline 4 inline Less
Cooling System Liquid Liquid Less
Compression Ratio 23.3:1 23.3:1 Less

Engine Dimensions*

Wet Weight 628.3 lb 285.0 kg Less
Length - Flywheel Housing 25.5 in 649.0 mm Less
Width 21.7 in 551.0 mm Less
Height 29.0 in 734.0 mm Less
Dry Weight 586.4 lb 266.0 kg Less


Note 1 Final dimensions dependent on selected options Final dimensions dependent on selected options Less


Gear-driven water pumps ensure maximum cooling efficiency. Inserted valve seats, oil spray cooled pistons and compact plate oil cooler give enhanced engine life.

Low cost of ownership

Competitive engine and parts pricing, 500 hour service intervals and low fuel consumption ensure our engines bring significant owner savings.

Low noise and low emissions

Our auxiliary marine engines give exceptionally low noise and are designed to meet a variety of emission standards.

Reliable power

High compression ratios ensure rapid starting in all conditions. Engines suitable for operation in ambient temperatures up to 50°C and seawaters up to 38°C. Fuelled starting aids for temperatures down to -15°C.

422TGM Standard Equipment

Air inlet system
  • Air filter
  • Fresh water cooled exhaust manifold incorporating header tank assembly

Control system
  • 12 volt starter motor and 12 volt 55 amp alternator with DC output
  • Glow plug cold start aid and heater/starter switch
  • Oil pressure and coolant temperature switches

Cooling system
  • Fresh water heat exchanger cooled engine with gear driven self priming raw water pump and ceramic seals
  • Thermostatically controlled system with belt driven circulating pump and ceramic seals

Flywheels and flywheel housing
  • Flywheel housing SAE 4 long
  • High inertia flywheel to SAE J620 size 7½ heavy

Fuel system
  • Electronically governed cassette type fuel injection pump
  • Single element fuel filter

  • Front and rear mounting brackets
  • User's Handbook

Oil system
  • Spin on, full flow lub oil filter
  • Wet steel sump with filler and dipstick