Crankshaft

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About Crankshaft

Replacement Engine Crankshafts for Heavy Equipment

Find replacement engine crankshafts for selected diesel engines used in construction equipment, skid-steer loaders, tractors, and other machinery. FAB Heavy Parts’ crankshaft collection includes crankshafts for a range of engine models, along with related crankshaft components and service tools. Product listings identify applicable engine models, part numbers, and, in some cases, the equipment they fit.

Browse crankshafts for selected Kubota, Caterpillar, Cummins, Perkins, Isuzu, Mitsubishi, Yanmar, Doosan, and Shibaura applications. Examples listed in this collection include Kubota V3800/V3800T, V3307, V2403, V2003, V1903, V2203, and D902 engines; Cummins 6C, ISC, and 6CT8.3 engines; Perkins 1004-series engines; and Caterpillar 3046, 3064, 3054, and C4.4 applications. Availability and exact fitment vary by product.

Find the Right Crankshaft for Your Engine

The crankshaft converts the pistons’ reciprocating motion into rotational motion, transferring engine power to the drivetrain. Because it operates under substantial mechanical loads, selecting the correct replacement is important during an engine repair or rebuild.

Start with the part number from your existing crankshaft or engine parts documentation. Then compare the listed engine model and equipment application. Engine names can cover multiple versions, and crankshafts that appear similar may differ in dimensions, journal specifications, counterweight design, or other details. Do not rely on the equipment brand or engine family alone to establish compatibility.

Crankshaft Parts and Related Service Tools

Alongside crankshafts, this collection includes selected crankshaft dampers and gears, as well as front or rear crankshaft seal installation and removal tools. These products serve different purposes, so review each listing to identify whether it is a replacement crankshaft, a related engine component, or a service tool.

Some listings are identified as new aftermarket replacements, while product descriptions may specify other conditions or designations. Check the individual listing for the stated condition, part number, and application before ordering.

Need Help Finding Crankshaft?

Can't find the replacement part you need? Send FAB Heavy Parts your part number, engine model, or equipment details. Our team can help review your requirements and provide a quotation.

Request a Quote

Frequently Asked Questions

How do I find the correct replacement crankshaft for my engine?

Use the part number from your original crankshaft or engine documentation, then compare it with the product listing’s engine model and equipment applications. If available, also check the engine serial number and build configuration. Similar engine names do not guarantee that crankshafts are interchangeable.

Does this collection include only crankshafts?

No. In addition to replacement crankshafts, the collection includes selected related items such as crankshaft dampers, gears, and crankshaft seal installation or removal tools. Read the product title and description to confirm which type of item is listed.

What information should I provide if I need help identifying a crankshaft?

Provide the existing part number, engine make and model, equipment make and model, and engine serial number if available. Photos of the old part or its identification markings may also help the parts team review your request. You can submit these details through the Request a Quote page.

Should a crankshaft be inspected before an engine is rebuilt?

Yes. A qualified technician should inspect the crankshaft and measure its journals and other critical surfaces according to the engine manufacturer’s service specifications. Cracks, excessive scoring, or measurements outside the permitted limits may mean the crankshaft needs replacement. Visual inspection alone cannot confirm that all dimensions are within specification.

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