CAT C12 ACERT – Marine Engine 715 mhp

Plan a high-output inboard propulsion package around the Cat C12 ACERT, rated at 715 mhp, or 526 bkW, at 2300 rpm. This 12.0 L inline six-cylinder diesel engine combines turbocharging and aftercooling with ADEM A4 electronic control and MEUI fuel injection. Its SAE No. 01 flywheel housing, hydraulic marine gear, and listed MG5114A or ZF 325-1 compatibility should be matched to the selected drivetrain before installation.

The listed 1177 kg dry weight, 45.4 L coolant capacity, and 28 L wet-sump oil capacity establish machinery-space and service-planning requirements. Cooling is specified as heat-exchanger or keel cooled, while the exhaust configuration uses a water-cooled manifold and turbocharger. The 24V, 70-amp alternator and Electronic Vessel Control compatibility should be included in electrical and vessel-control system planning.

Why Choose the Cat C12 ACERT Marine Engine

The C12 ACERT marine engine provides 715 mhp at 2300 rpm from a 12.0 L inline six-cylinder diesel platform. Buyers can compare its turbocharged-aftercooled induction, ADEM A4 controlled MEUI injection, 1177 kg dry weight, SAE No. 01 housing, listed MG5114A or ZF 325-1 compatibility, 24V alternator, Electronic Vessel Control compatibility, and heat-exchanger or keel-cooling options against the required propulsion configuration.

Warranty and Support

Cat provides a 24-month, unlimited-hour warranty for C-12 marine propulsion engines used in non-revenue-producing pleasure-craft applications. Commercial applications receive 12 months of coverage, while specified engine components receive 60 months of unlimited-hour coverage, subject to applicable Cat warranty terms. provides pre-purchase product guidance and order-related customer support. Review the applicable warranty information on before completing your order.

Before Ordering the Cat C12 ACERT Marine Engine

Verify that your vessel supports the 715 mhp at 2300 rpm output, 12.0 L six-cylinder configuration, 1177 kg dry weight, SAE No. 01 flywheel housing, and 24V electrical architecture. You should confirm MG5114A or ZF 325-1 drivetrain compatibility, choose heat-exchanger or keel cooling, plan ASTM D975 diesel supply, and verify hydraulic gear, shaft, propeller, exhaust, Electronic Vessel Control, and engine-bed requirements.