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Crankshafts

Caterpillar Crankshafts Deliver Smooth Engine Turns

The quality of our Crankshafts is ensured by the use of modern analysis, design, and computer aided modeling techniques for 2 and 3 dimensional designs. They are manufactured with the latest technology machinery to satisfy all of your engine’s needs.

Caterpillar crankshafts are precision-engineered for converting the linear motion of pistons into rotational power, maintaining smooth, reliable, and efficient engine operation in the most demanding applications. Available for a wide range of CAT engines including the 3066, 3304, 3306, 3406, 3408, 3412, C7, C9, C12, C15, and more each crankshaft is designed for an exact fit and long service life, delivering high strength, low stress, and outstanding durability. Built from forged or cast steel, these components are heat-treated for core hardness and stress resilience, meeting Caterpillar’s stringent quality and dimensional standards.

Replacement of worn or damaged crankshafts is vital for continued engine health, performance, and uptime. Properly sized and balanced, CAT crankshafts help prevent vibration, bearing wear, and premature engine failure keeping your equipment productive for years.

Propel Parts makes it easy to find the right high quality replacement crankshaft for Caterpillar equipment. With a comprehensive inventory, fast shipping, and expert support, you’ll get genuine or premium quality crankshaft for your CAT equipment tailored to your specific needs.

Frequently Asked Questions (FAQs)

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A crankshaft converts the up-and-down motion of pistons into rotational movement, which drives the transmission and powers the machine’s movements.

Signs include excessive vibration, engine knocking, unusual noises, bearing failure, visible cracks, or excessive journal wear. Inspect during overhauls or at the first sign of trouble.

No, each crankshaft is designed for a specific engine model, stroke, and journal size. Always match the part number and engine model for proper fit and performance.

Genuine or high quality replacement crankshafts for CAT equipment are engineered for precise fit, maximum strength, and long service life helping you avoid costly engine damage and downtime.

With advanced mechanical skills and the correct tools, you can install a replacement crankshaft by carefully following Caterpillar’s service manuals.

Propel Parts offers high quality replacement crankshafts for caterpillar equipment with clear compatibility listings, expert support, and fast delivery to keep your equipment running smoothly. The Propel Parts Technical Team is here to guide you in choosing the right crankshafts for your equipment.