Parts for Caterpillar 3406 – Oil Pump & Lubrication System Section

Keeping the Caterpillar 3406 engine properly lubricated is essential for extending service life, preventing component wear, and maintaining consistent performance under heavy loads. The oil pump and related lubrication system components are at the core of this process, ensuring that every moving part receives adequate oil flow and pressure. Below is a comprehensive catalog of Caterpillar 3406 oil pumps, coolers, gaskets, and accessories available from Diesel Pro Power.

Oil Pumps for Caterpillar 3406 Engines

Oil Pump for Caterpillar 3406, 3408, and C15 Engines

This high-quality oil pump is designed for Caterpillar 3406, 3408, and C15 engines. It ensures consistent oil circulation throughout the lubrication system, maintaining the right balance of oil pressure for bearings, pistons, and the valvetrain. Whether used in long-haul trucking, heavy equipment, or marine applications, this pump is built to OEM standards for durability and reliability.

• Designed for heavy-duty performance.

• Ensures consistent lubrication under load.

• Suitable for Caterpillar 3406, 3408, and C15 engines.

• Engineered for long service life and efficient oil flow.

Oil Pump for Caterpillar 3406, 3406B, and 3406E Engines

Specifically designed for Caterpillar 3406, 3406B, and 3406E engine models, this oil pump maintains precise oil pressure for critical engine components. It is compatible with engines carrying serial prefix numbers 91U, 6TB, and 9WR. This pump is particularly popular among operators running construction equipment, industrial generators, and trucks powered by the 3406 platform.

• Maintains correct oil pressure to prevent engine wear.

• OEM-quality replacement for 3406, 3406B, and 3406E engines.

• Built for rugged, high-demand environments.

• Easy installation and dependable operation.

Oil Cooler Components for Caterpillar 3406

Oil Cooler Core for Caterpillar 3406 and 3408 Engines

The oil cooler core is essential for maintaining safe oil temperatures in Caterpillar 3406 and 3408 engines. By reducing oil heat, it helps protect bearings, pistons, and turbochargers from damage due to thermal stress. This cooler core is designed to fit seamlessly into the lubrication system, providing efficient heat exchange and ensuring oil remains at optimal viscosity during operation.

• Prevents overheating and oil breakdown.

• Extends engine component life by maintaining stable lubrication.

• Engineered for heavy-duty Caterpillar applications.

Oil Cooler Installation Kit for Caterpillar 3406 Engines

A complete installation kit for replacing or servicing the oil cooler on the 3406 engine. Includes all necessary seals and hardware for a secure, leak-free installation. Ensuring that the oil cooler is properly installed is critical to avoiding oil leaks and maintaining correct cooling efficiency.

• One kit required per engine.

• Provides all essential parts for secure installation.

• Designed for convenience and reliability.

Oil Sealing and Gasket Components

Oil Pan Gasket for Caterpillar 3406 Engines

The oil pan gasket creates a tight seal between the oil pan and the engine block, preventing leaks and ensuring that the lubrication system remains properly pressurized. Built to withstand the rigors of Caterpillar diesel engines, this gasket provides long-lasting sealing performance.

• Precision fit for Caterpillar 3406 engines.

• Prevents oil loss and contamination.

• Durable material for high-temperature applications.

Oil Filter Accessories

Oil Filter Removal Wrench

A durable oil filter removal wrench designed for Caterpillar, Detroit Diesel, and Cummins applications. This tool accommodates filters ranging from 4-21/32" to 5-5/32" in diameter, making oil filter service easier and more efficient. A proper filter change is a vital part of the oil system maintenance routine, and this wrench ensures the job can be done quickly and securely.

• Fits Caterpillar, Cummins, and Detroit Diesel filters.

• Adjustable range for versatile use.

• Heavy-duty design for repeated service tasks.

Why Buy Caterpillar 3406 Oil Pumps & Lubrication Parts from Diesel Pro Power

When it comes to maintaining the lubrication system of your Caterpillar 3406, selecting the right supplier is just as important as the components themselves. The oil pump, cooler, and gaskets all work together to keep your engine running smoothly, and a failure in any one of these parts can lead to costly downtime. Diesel Pro Power has built its reputation as a trusted global supplier by delivering high-quality Caterpillar parts backed by exceptional customer service and technical expertise.

Trusted by 40,000+ Customers Worldwide – With operators in more than 180 countries depending on us, Diesel Pro Power has become a recognized name in heavy-duty diesel engine support. Whether you run long-haul trucks, marine vessels, or industrial machinery powered by the Caterpillar 3406, our proven reliability makes us the preferred choice for thousands of businesses and operators.

OEM-Quality Fit and Performance – Every oil pump, cooler core, gasket, and accessory in our inventory is engineered to match Caterpillar specifications. This ensures that when you replace or service your oil system components, the parts will fit correctly and perform as intended, protecting your investment in the 3406 engine. Our quality standards guarantee proper oil pressure, efficient cooling, and long service life.

Fast Global Shipping – We know that downtime equals lost revenue. That’s why Diesel Pro Power offers rapid, worldwide shipping. Whether you are based in North America, South America, Europe, Asia, or beyond, we deliver quickly and reliably so you can get your equipment back in operation without unnecessary delays.

Dedicated 3406 Catalog – Unlike generic suppliers, Diesel Pro Power provides a carefully organized catalog specifically for the Caterpillar 3406. Parts are grouped by system and component type, making it simple to identify and order exactly what you need. From oil pumps and coolers to gaskets and service tools, everything is streamlined for convenience.

Expert Technical Support – Our team of diesel engine specialists is available to assist you in selecting the right oil system components for your Caterpillar 3406. Whether you are troubleshooting an oil pressure issue, planning a full engine rebuild, or replacing a single gasket, our experts provide the guidance you need for a correct and confident purchase.

Proven Reliability and Long-Term Value – Choosing Diesel Pro Power means more than just buying parts—it means investing in proven reliability. By sourcing your oil pumps and lubrication components from a trusted supplier, you reduce the risk of premature failures, avoid costly downtime, and ensure your Caterpillar 3406 delivers consistent performance for years to come.