Craftsman CM4.65 – Marine Diesel Engine 65 HP

Description

Match an inboard diesel installation to the Craftsman CM4.65, rated at 65 hp at 2500 rpm and configured with an SAE 4, 7.5-inch flywheel housing. This naturally aspirated, Mitsubishi-based inline four-cylinder engine displaces 2.51 L and uses indirect fuel injection with EN 590 diesel. Its listed Technodrive or ZF drive options and mechanical or hydraulic gearbox compatibility should be selected around the vessel’s shaft-drive arrangement.

Indirect heat-exchanger cooling connects with a 50 mm water-injected wet exhaust. The engine has a listed dry weight of 230 kg, a 12V, 90-amp alternator, 9 L coolant capacity, and 6.5 L oil capacity with forced lubrication. These figures guide engine-bed, charging, cooling, exhaust-routing, and service-access planning before installation.

Key Specifications of the Craftsman CM4.65 Marine Diesel Engine

• The Mitsubishi-based inline four-cylinder engine displaces 2.51 L, defining the stated naturally aspirated diesel configuration for inboard propulsion.
• Rated output is 65 hp, or 47.8 kW, at 2500 rpm for selecting the vessel’s gearbox, shaft, and propeller arrangement.
• Indirect injection uses EN 590 diesel with a 22.0:1 compression ratio in the specified four-cylinder combustion-system layout.
• An SAE 4, 7.5-inch flywheel housing works with listed Technodrive or ZF drive options for transmission specification and installation planning.
• Indirect heat-exchanger cooling pairs with a 50 mm water-injected wet exhaust, defining the listed cooling and exhaust arrangement.
• The 12V, 90-amp alternator provides stated charging output, requiring an appropriately planned electrical connection within the vessel system.
• Dry weight is 230 kg, establishing a defined load for engine-bed support, lifting arrangements, and machinery-space assessment.

Engine and Drivetrain Configuration

This Craftsman marine diesel engine has an 88 x 103 mm bore-and-stroke layout, a 22.0:1 compression ratio, and firing order 1-3-4-2. Its 65 hp output at 2500 rpm, naturally aspirated induction, and 2.51 L displacement provide relevant comparison points against higher-output or turbocharged engine packages. Mechanical and hydraulic steering compatibility is listed for vessel control-system planning.

The engine’s forced-lubrication system holds 6.5 L of oil, while the cooling circuit has a 9 L capacity. The selected gearbox, shaft alignment, 50 mm wet-exhaust routing, heat-exchanger connections, alternator wiring, and service access should be planned according to applicable Craftsman Marine installation requirements.

Why Choose the Craftsman CM4.65 Marine Diesel Engine

The CM4.65 marine diesel engine provides 65 hp at 2500 rpm from a naturally aspirated 2.51 L inline four-cylinder configuration. Buyers can compare its 230 kg dry weight, SAE 4, 7.5-inch flywheel housing, Technodrive or ZF drive options, 90-amp alternator, heat-exchanger cooling, 50 mm wet exhaust, and 6.5 L oil capacity against their inboard propulsion and machinery-space requirements.

Installation and Service Considerations

Confirm engine-bed capacity and lifting provisions for the stated 230 kg dry weight before installation. Match the SAE 4, 7.5-inch flywheel housing with the selected Technodrive or ZF drive option, then plan the gearbox, shaft alignment, and propeller arrangement. Allow access for the 6.5 L lubrication system, 9 L coolant circuit, heat exchanger, alternator, and 50 mm wet-exhaust components.

Warranty and Support

Craftsman Marine provides a 24-month or 1,000-hour international warranty for non-commercial pleasure applications, whichever occurs first. When the commissioning form is completed and submitted, an additional 48-month or 2,000-hour limited warranty period applies to specified non-moving engine parts, subject to the applicable terms and operating-hour limits. Mulmarine.com provides pre-purchase product guidance and order-related customer support. Review the applicable warranty information on Mulmarine.com before completing your order.

Before Ordering the Craftsman CM4.65 Marine Diesel Engine

Confirm that you need the listed 65 hp at 2500 rpm output, 2.51 L inline four-cylinder configuration, 230 kg dry weight, and SAE 4, 7.5-inch flywheel housing. You should verify the selected Technodrive or ZF drive option, gearbox compatibility, shaft alignment, EN 590 diesel supply, 50 mm wet-exhaust route, cooling connections, steering arrangement, and 12V electrical system before purchase.