Cummins ISB 4.5 Parts

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Parts For Cummins ISB 4.5 Industrial Engines

The Cummins ISB 4.5 engine stands out as a workhorse across marine and industrial applications, offering a balance of power, reliability, and efficiency. At Diesel Pro Power, we understand how critical this engine is to your operation—whether it powers a vessel or industrial equipment. That’s why we provide premium replacement and upgrade parts for the Cummins ISB 4.5, backed by global 24-hour shipping and unparalleled customer support.

Why the Cummins ISB 4.5 Is a Preferred Engine

The ISB 4.5 engine is a mid-range diesel engine developed for marine propulsion, generator sets, and various off-highway industrial uses. Known for its compact build and robust torque curve, it offers dependable performance in a range of configurations. Features such as high-pressure common rail (HPCR) fuel systems, electronic engine management, and low emissions make it a favorite among engineers and operators alike.

Shop Cummins ISB 4.5 Parts by Category

Complete Engine Rebuild Kits for cummins ISB 4.5

If your ISB 4.5 requires a full overhaul, Diesel Pro Power has the complete kits needed to get the job done. Our kits include:

• Upper Gasket Kits: All essential gaskets to reseal your engine’s top end.

• Lower Gasket Kits: Crucial for maintaining oil pan and crankcase integrity.

• Full Engine Rebuild Kits: Pistons, rings, liners, bearings, gaskets, and seals—all in one comprehensive package.

• Complementary Fluids and Cleaners: Cooling system treatment, radiator flush, and oil system cleaners for a professional finish.

These kits are designed to OEM standards and packaged for convenience, eliminating guesswork and ensuring a complete restoration.

Fresh Water Cooling Pumps and Components for Cummins ISB 4.5

Cooling is essential for peak performance. Choose from:

• Fresh Water Pumps: Built to handle the thermal demands of continuous use.

• Pump Seals and Repair Kits: Replace just what’s worn—perfect for routine maintenance.

• Drive Belts for Alternators and Fans: Engineered for long life and smooth operation in harsh environments.

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Cylinder Heads and Valve Train Components for Cummins ISB 4.5

Cylinder heads are critical for compression, combustion, and emissions control. Our selection includes:

• Remanufactured Cylinder Heads: Pressure-tested, machined, and ready to install.

• Valve Springs, Keepers, and Retainers: Factory-spec replacements for reliable sealing.

• Intake and Exhaust Valves: Hardened for durability under marine and industrial loads.

Each head is inspected to ensure integrity and compatibility with ISB 4.5 block configurations.

Fuel System Parts for Cummins ISB 4.5

Fuel efficiency and injector timing are the heart of performance. We offer:

• Fuel Pumps (Mechanical and Electronic): High-pressure delivery for complete atomization.

• Injection Pump Gasket Kits: Ensure leak-free operation and consistent performance.

• Fuel Filters and Water Separators: Protect your system from contaminants and corrosion.

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Other Key Components for Cummins ISB 4.5 Engines

Crankshafts for Cummins ISB 4.5 Engines

The crankshaft is the foundation of your Cummins ISB 4.5 engine’s rotating assembly. It transforms the up-and-down motion of the pistons into the rotational power that drives your vessel or industrial machinery. At Diesel Pro Power, our crankshafts are engineered for long-lasting durability and smooth operation, even under high-load conditions.

To support a full bottom-end overhaul, we also carry:

• Main Bearings and Rod Bearings – Precision-fit components that ensure consistent lubrication and minimal wear.

• Thrust Washers – Protect the crankshaft from axial movement and maintain proper endplay.

• Crankshaft Seals – Essential for preventing oil leaks and safeguarding internal components from contamination.

These components are manufactured to meet or exceed OEM specifications, giving you peace of mind with every repair or rebuild.

Camshafts for Cummins ISB 4.5 Engines

The camshaft is critical for controlling the timing and lift of your engine’s intake and exhaust valves. In the Cummins ISB 4.5 engine, precise camshaft function ensures optimal air/fuel combustion and exhaust flow, directly impacting power output and fuel efficiency.

Diesel Pro Power provides camshafts specifically designed for ISB 4.5 engine configurations, offering:

• Timing Gears – Matched to ensure proper synchronization between the camshaft and crankshaft.

• Camshaft Bearings – Designed to handle the high loads of marine and industrial engine cycles.

• Valve Train Components – Including lifters, rocker arms, and pushrods to complete your top-end system.

All components are built for rugged conditions and are ideal for maintaining engine integrity in both preventative and corrective maintenance operations.

Everything is aligned to strict OEM specifications to reduce friction and wear over time.

Marine Cables and Engine Control Accessories For Cummins ISB 4.5

Keep your marine application responsive and intuitive with:

• Throttle and Shift Cables

• Control Levers

• Remote Start Switches

These parts ensure seamless command of the engine’s output from any helm station.

Sensors and Electrical Components For Cummins ISB 4.5

We stock a wide array of ISB 4.5 electronic components, including:

• Oil Pressure Sensors

• Water Temperature Sensors

• ECU Modules and Wiring Harnesses

All sensors are marine-grade and resistant to moisture, vibration, and corrosion.

Maintenance Tools for Cummins ISB 4.5

Professionals and fleet operators alike benefit from having the right tools on hand:

• Feeler Gauge Sets: Ideal for valve adjustments during top-end rebuilds.

• Fuel Filter Wrenches: Eliminate the struggle of changing out cartridges.

• Impeller Pullers: Speed up raw water pump maintenance.

• Oil Filter Wrenches: Compatible with a range of Cummins marine filters.

These tools help ensure precision maintenance and reduce labor time during routine services.

Common Applications for the ISB 4.5

Marine Propulsion and Generators

From tugboats to yachts, the ISB 4.5 engine powers a wide variety of vessels thanks to its:

• Compact footprint

• Clean emissions profile

• Strong low-end torque

Industrial Uses

It also excels in:

• Construction Equipment

• Agricultural Machinery

• Stationary Power Generation

Operators trust the ISB 4.5 for its durability and minimal downtime across demanding environments.

Benefits of Ordering From Diesel Pro Power

Worldwide 24-Hour Shipping

No matter where you’re located—on land or at sea—our team ships Cummins ISB 4.5 parts within 24 hours, ensuring minimal operational delay.

Industry-Leading Support

Our customer service team includes diesel engine experts. We’ll help you:

• Identify the correct parts

• Provide installation advice

• Offer maintenance recommendations

Whether via phone, email, or live chat, we’re here to help you every step of the way.

Trusted by Thousands

With over 40,000 +  satisfied customers worldwide, our reputation is built on:

• Genuine parts

• Fast shipping

• Transparent support

• Real-world marine and industrial experience