M&H 6068 Tier 3 Emissions Hazardous Area Engine

(172 kW (230 HP) @ 1800 - 2300 RPM – 224 kW (300 HP) @ 2000 - 2500 RPM)

Emissions reductions from Stage 1 to M&H Stage V

Based on 4.5L & 6.8L engines in the 130 to 224 kW engine power output range

Reduction in CO 99.78%
Reduction in NOX 99.79%
Reduction in PM 99.81%


Tier 3 Hazardous 6068

I-6, 4-Stroke-Cycle-Diesel

Weight, Net Dry (approx) – 763 kg (1,682 lb)

Oil Change Interval – 500 hr

Rotation (from flywheel end) – Counterclockwise

Flywheel and flywheel housing – SAE options available

Rated Power – 224 kW - 300 Hp

Rated Speed – 2000 - 2500 rpm

Peak Torque Speed – 1900 rpm

Rated Torque – 1,095 N·m - 808 lb-ft

BMEP Rated – 1,581 kPa - 229 psi

Noise @ 1 m dB(A) – 95.8

Performance Data 134 kW (180 HP) @ 2000 - 2400 RPM

Tier 3 6068 Performance Data
Air Inlet System Corrosion resistant aftercooler core, light-duty air cleaner (open system)
Cooling System Gear-driven jacket water circuit pump
Exhaust System Water cooled exhaust manifold and turbocharger
Fuel System Fuel priming pump, fuel transfer pump, fuel filter — RH or LH service, flexible fuel lines
Lube System Crankcase breather, engine oil cooler, oil filter — RH or LH service, oil dipstick — RH or LH option, oil filler, deep sump oil pan, gear-driven oil pump
Instrumentation 12V / 24V instrument panel.
Power Takeoffs Options available
Protection System 12 or 24V electronic shutdown
ISO Certification ISO 9001:2000 certified facilities

M&H Tier 3 Hazardous Area Engines Features and Benefits


M&H Engineering Tier 3 engines come with a three-year warranty as standard. Warranty conditions are – one-year unlimited hours, three years total 5,000 hours maximum. Extended warranty is available at an extra cost for an additional two years.

Service and support

Service and support contracts are available for the warranty period and beyond. Service and support from our expanded service dealer team ensures prime operation of your engine and a long service life.

Oil change

500 hours standard oil change intervals.

Either-side Service

Oil fill and dipstick combinations, remote oil filter and fuel water separator can be configured for easier packaging, service access, application and service flexibility to provide installation convenience plus fast and easy maintenance.

Engine Jacket Water Circuit cooling

Suitable for radiator cooling. Combined engine jacket water circuit and exhaust gas cooler water circuit pump.


All systems are protected both mechanically and electrically in accordance with the relevant hazardous area standards requirements.