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Parts For Caterpillar 3204

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Caterpillar 3204 Engine Parts Catalog

Caterpillar 3204 Engine Specifications & Applications

The Caterpillar 3204 engine is part of the legendary 3200 series, designed with reliability and durability in mind for both industrial and marine applications. Known for its compact yet powerful configuration, the 3204 engine has been a trusted workhorse in construction, agriculture, power generation, and select marine operations. Its straightforward mechanical design makes it easier to service, while Caterpillar’s reputation for engineering excellence ensures long service life.

Engine Specifications

  • Configuration: 4-cylinder, in-line diesel engine

  • Displacement: 4.4 liters (269 cubic inches)

  • Bore and Stroke: 4.25 x 5.0 inches (108 x 127 mm)

  • Compression Ratio: Typically around 16.5:1, providing reliable cold-start capability and efficient fuel combustion

  • Aspiration: Available in naturally aspirated and turbocharged versions depending on application

  • Fuel System: Direct injection with mechanical control

  • Horsepower Range: Approximately 75–125 HP, depending on the build and configuration

  • Applications: Widely used in Caterpillar heavy equipment, including loaders, backhoes, excavators, generators, forklifts, and some marine auxiliary systems.

Applications Across Industries

  • Construction: The 3204 powered equipment like the CAT 920 wheel loader and 931 track loader, providing dependable power for earthmoving and lifting operations.

  • Agriculture: Used in tractors and harvesting equipment where torque at low RPM was critical.

  • Industrial Power Units: Ideal for stationary equipment such as pumps and compressors, the 3204 engine delivered consistent performance in demanding environments.

  • Marine Support Equipment: While not as common as larger Caterpillar marine engines, the 3204 found use in auxiliary roles, powering generators and support systems aboard vessels.

With decades of service history, the Caterpillar 3204 remains a respected choice for operators seeking a reliable mid-range diesel engine. Maintaining it with quality replacement parts ensures maximum uptime and continued performance.

Parts Catalog for Caterpillar 3204 Engines

At Diesel Pro Power, we provide a complete line of replacement parts for the Caterpillar 3204 engine, trusted by over 40,000 satisfied customers worldwide. Each part is designed to meet or exceed OEM specifications, ensuring durability and reliability for your equipment.

Fuel System Components for Caterpillar 3204

The fuel system of the Caterpillar 3204 is critical to its performance. Proper atomization and injection timing ensure efficient combustion and optimal fuel economy.

  • Fuel Injectors – Precision injectors designed for consistent spray patterns and long service life.

  • Injection Pumps – Mechanical fuel injection pumps available for naturally aspirated and turbocharged models.

  • Fuel Transfer Pumps – Ensures consistent fuel delivery under high load conditions.

  • Fuel Filters & Housings – Essential for protecting injectors from contaminants, available in complete assemblies.

Cylinder Heads & Valve Train for Caterpillar 3204

A well-maintained cylinder head and valve train ensure proper airflow and combustion.

  • Cylinder Heads – Available fully assembled with valves and springs for easy installation.

  • Valves & Valve Guides – Precision-machined for durability and correct seating.

  • Valve Springs & Retainers – Designed to withstand heavy-duty use and maintain proper valve timing.

  • Rocker Arms & Push Rods – Engineered for smooth motion transfer from the camshaft to the valves.

Pistons, Rings, & Liners for Caterpillar 3204

The heart of the engine’s compression system relies on durable piston assemblies.

  • Piston Kits – Complete with pistons, pins, rings, and retainers.

  • Cylinder Liners – Replaceable liners to restore cylinder wall integrity without block replacement.

  • Piston Rings – High-quality rings designed to reduce oil consumption and maintain compression.

Gasket Sets for Caterpillar 3204

Proper sealing ensures reliable operation under high temperatures and pressure.

  • Overhaul Gasket Sets – Complete kits designed for major rebuilds.

  • Head Gasket Sets – For top-end repairs including cylinder head servicing.

  • Oil Pan & Timing Cover Gaskets – Ensure leak-free sealing in critical areas.

Oil System Components for Caterpillar 3204

Lubrication is essential to engine longevity.

  • Oil Pumps – High-capacity pumps maintain correct oil pressure under load.

  • Oil Coolers & Cores – Helps regulate temperature and extend oil life.

  • Oil Filters & Bases – Keep contaminants from damaging internal components.

Cooling System Components for Caterpillar 3204

The Caterpillar 3204 requires an efficient cooling system to prevent overheating.

  • Water Pumps – Marine and industrial cooling pumps available for continuous-duty operation.

  • Thermostats & Housings – Ensure consistent engine temperature control.

  • Heat Exchangers & Cores – Marine-specific cooling solutions for auxiliary applications.

  • Radiators & Hoses – High-quality replacements for equipment cooling systems.

Air Intake & Exhaust System for Caterpillar 3204

Maintaining clean airflow and effective exhaust is key for engine efficiency.

  • Air Filters & Housings – Protect the combustion chamber from dust and contaminants.

  • Turbochargers – For turbocharged models, boosting power and efficiency.

  • Exhaust Manifolds & Gaskets – Durable replacements for cracked or corroded manifolds.

  • Blower Components – Ensuring correct airflow delivery in certain equipment builds.

Electrical & Starting Systems for Caterpillar 3204

Dependable starts and consistent operation depend on a solid electrical system.

  • Starters & Solenoids – Heavy-duty components for reliable cold-weather starting.

  • Alternators & Regulators – Maintain consistent electrical output under load.

  • Wiring Harnesses & Connectors – Simplify installations and ensure proper electrical connections.

  • Glow Plugs & Cold Start Aids – Essential for cold-weather operation.

Engine Mounts & Hardware for Caterpillar 3204

Durability and vibration control protect both the engine and equipment frame.

  • Engine Mounts – Designed to reduce vibration and extend equipment life.

  • Fasteners & Stud Kits – Complete hardware sets ensure secure engine assembly.

Why Choose Diesel Pro Power for Caterpillar 3204 Engine Parts

  • Fast Worldwide Shipping: Parts ship within 24 hours to keep your equipment running.

  • Quality Guaranteed: Each part is tested for durability and compatibility.

  • Expert Support: Our team provides guidance to help you select the right components.

  • Trusted by 40,000+ Customers: From marine operators to industrial fleets, we are the go-to supplier for Caterpillar parts.

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