Perkins M300C High-Output Inboard Marine Diesel Engine

Description

Featuring a 6.0-liter displacement block the Perkins M300C Inboard Marine Diesel Engine produces high continuous shaft horsepower for fast commercial craft. The turbocharged aftercooled six-cylinder layout outputs 300 brake horsepower at 2,500 RPM. Direct mechanical fuel injection meters diesel with extreme accuracy, generating rapid planing acceleration for pilot tenders, patrol boats, and offshore crew transport vessels.

High-tensile gray cast iron forms the monolithic six-cylinder block, incorporating replaceable centrifugally cast wet cylinder liners that resist high combustion friction. A cupronickel plate heat exchanger dissipates internal heat loads through a 1.75-inch bronze seawater pump. Foundation interfaces include an SAE number two flywheel housing, seventeen-quart cast oil pan, number ten JIC fuel connections, and an unladen dry mass of 1,350 lbs without marine gearboxes.

Key Features of Perkins M300C

Marine commercial operators buy Perkins M300C inboard engine packages to achieve high boat speeds without sacrificing mechanical drivetrain reliability. This turbocharged six-cylinder machine pairs high-volume charge air intercooling with mechanical fuel injection for demanding coastal patrol missions.

• 6.0-liter swept displacement produces 710 lb-ft shaft torque at 1,600 RPM for fast vessel planing.
• Replaceable wet cylinder liners allow straightforward in-chassis overhauls without removing the engine.
• High-capacity seawater aftercooler chills intake air charge to boost combustion efficiency under load.
• Mechanical rotary injection pump regulates fuel volume without sensitive digital computer controllers.
• Perkins M300C high output marine diesel architecture features dual spin-on lube filters for oil defense.
• Seven main bearing journals support the forged steel crankshaft against high combustion forces.
• 12-volt 90-amp alternator maintains electrical reserves for vessel navigation and radar electronics.

Combustion Characteristics Thermal Limits

Operating coolant temperatures hold stable between 165°F and 185°F under continuous M3 commercial marine service ratings. Direct injectors atomize diesel at 255 bar line pressure straight into piston crown chambers, producing clean combustion without dense exhaust smoke. The raw water cooling package expels 6,800 BTU per minute of heat energy to overboard water streams. Cruising fuel consumption measures 0.360 lbs per horsepower hour at 2,000 RPM, burning approximate 13.8 GPH when driving high speed patrol vessels through choppy coastal waters.

Exhaust Integration Stringer Alignment

Exhaust installation meets ABYC P-1 standards using a five-inch water-injected stainless steel discharge elbow mated to certified wet marine exhaust hose. Engine bed stringers require 26.0-inch width with 2.5 inches of clearance below the deep oil pan. Heavy elastomer mounts isolate hull framing from vibration pulses while securing shaft line alignment.

Service Schedules Operating Boundaries

Mechanical push-pull morse cables control the governor arm with immediate tactile response. Crew members inspect crankcase oil levels using the starboard dipstick and check seawater strainers before departure. This high-output marine diesel is not engineered for light stepped hydroplanes, unlimited race boats, or raw unseparated bilge oil combustion.

• Inspect crankcase oil levels and raw water sea strainers each shift before departure.
• Replace primary and secondary spin-on fuel filter elements every 250 hours.
• Drain crankcase engine oil and replace heat exchanger zinc anodes every 500 hours.

Factory Warranty Crate Contents

Perkins backs this engine package with a 2-Year or 3,000-Hour commercial warranty covering structural block castings and rotating internal components. The timber shipping crate holds the complete core engine, four marine vibration isolators, 12-volt instrument panel with wiring harness, oil drain pump, and an OEM technical operation manual.