Parts for Caterpillar 3406 – Camshaft and Related Components

Camshaft Gear for Caterpillar 3406 Engines

The camshaft gear is a precision-machined component that synchronizes the rotation of the camshaft with the crankshaft. In the Caterpillar 3406, this gear plays a vital role in valve timing, ensuring that intake and exhaust valves open and close at the proper intervals. The gear is designed with 64 teeth, cut to OEM specifications for durability and exact timing performance. A properly functioning camshaft gear helps maintain engine efficiency, reduces wear on valve train components, and contributes to smoother overall operation.

Camshaft Woodruff Key for Caterpillar 3406 Engines

The camshaft woodruff key secures the camshaft gear in precise alignment with the camshaft itself. This small yet critical component prevents slippage, which could otherwise result in timing issues and engine performance problems. Built from hardened steel, the woodruff key is engineered for long-lasting service, even under the heavy loads and vibrations experienced in Caterpillar 3406 engines. By maintaining exact positioning, it ensures reliable synchronization of the valve train over thousands of operating hours.

Camshaft Bushings for Caterpillar 3406 Engines

The Caterpillar 3406 engine relies on high-quality bushings to support the camshaft as it rotates. These bushings reduce friction between the camshaft and the engine block, ensuring smooth operation and minimizing wear. Two common widths are available:

• Standard Width (1.00") – Designed to provide consistent lubrication and support for standard-duty applications.

• Heavy-Duty Width (1.30") – Offers increased surface contact for higher-load conditions, enhancing longevity in demanding operating environments.

Using the correct camshaft bushing helps maintain proper alignment, reduces noise and vibration, and extends the service life of the camshaft assembly.

Valve Lifters for Caterpillar 3406 Engines

Valve lifters, also known as tappets, are essential components in the Caterpillar 3406 valve train system. They transmit the rotational motion of the camshaft into vertical motion to open and close the engine’s valves. Built for precision and durability, these lifters reduce friction and wear while maintaining accurate valve timing. When paired with a properly maintained camshaft and gear system, valve lifters contribute to optimal combustion, reduced emissions, and extended engine service life.

Why Choose Diesel Pro Power for Caterpillar 3406 Camshaft Components

When it comes to maintaining or rebuilding a Caterpillar 3406 engine, every part matters. The camshaft and its related components—gears, bushings, keys, and valve lifters—are at the very heart of engine timing and performance. Choosing the right supplier can mean the difference between smooth operation and costly downtime. At Diesel Pro Power, we specialize in supplying high-quality Caterpillar 3406 camshaft parts that deliver reliability, long service life, and exact OEM fit. Here’s why thousands of operators worldwide trust us for their replacement needs.

Trusted Worldwide

With more than 40,000 satisfied customers across the globe, Diesel Pro Power has built a reputation for consistency and reliability. Whether you are running a Caterpillar 3406 in a trucking fleet, a marine vessel, or a piece of heavy equipment, you can rely on our replacement parts to perform under tough conditions. Our customers range from independent mechanics to major industrial operators, and all benefit from the same level of quality and service.

OEM-Quality Fit and Function

Every camshaft gear, bushing, woodruff key, and valve lifter in our catalog is built to Caterpillar specifications. That means you can install our parts with confidence, knowing they will match the precise tolerances and performance standards required by the 3406 engine. By maintaining OEM fit, we help ensure proper valve timing, reduced wear on engine components, and optimal combustion efficiency. When you choose Diesel Pro Power, you’re not just buying a part—you’re securing the long-term reliability of your engine.

Fast Global Shipping

We understand that downtime is costly. Whether your 3406 powers a long-haul truck, a generator, or a marine vessel, an out-of-service engine can result in significant losses. That’s why we prioritize fast, reliable shipping to customers worldwide. Our streamlined distribution system allows us to get parts out quickly, minimizing delays and keeping your equipment operational. No matter where you’re located, you can count on Diesel Pro Power to deliver your camshaft components when you need them most.

Dedicated 3406 Catalog

Navigating engine parts catalogs can be overwhelming, especially when dealing with engines that share components across multiple models. To make the process easier, we’ve built a dedicated Caterpillar 3406 catalog that organizes camshaft-related components by type. Whether you need a camshaft gear, a replacement bushing, or valve lifters, you’ll find what you’re looking for without the guesswork. Our clear product descriptions and technical details take the uncertainty out of ordering, ensuring you get the right part the first time.

Expert Technical Support

Not every engine build is the same, and sometimes identifying the correct part requires more than just a quick search. That’s where our team of specialists comes in. With years of experience working with Caterpillar 3406 engines, our experts can help you choose the right camshaft gear size, confirm the proper bushing width, or guide you through installation considerations. This personalized support helps you avoid costly mistakes and ensures your engine rebuild or repair is done right the first time.