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Caterpillar Overhaul Kit

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Caterpillar Engine Overhaul Kits for Diesel Engine Rebuilding

Explore Caterpillar engine overhaul kits at Fab Heavy Parts for diesel engine rebuilding and major repairs. Our Caterpillar Overhaul kit collection includes aftermarket engine rebuild kits and overhaul gasket sets for selected Caterpillar engines, as well as kits for certain Caterpillar machines equipped with other engine brands.

Available applications include selected C3.3, C3.3B, C3.4, C3.8, C6.6, C7.1, 3054, 3064, and 3304 engines. Each product is listed for specific engine applications, so confirm the complete engine identification before choosing a replacement kit.

What's Included in Caterpillar Engine Rebuild Kits?

Depending on the product, an engine overhaul kit may include pistons, piston rings, cylinder liners, piston pins, connecting rod bearings, main bearings, thrust bearings, valves, valve guides, valve seats, and an overhaul gasket kit.

For example, the C3.3/C3.3B overhaul kit lists four pistons, four semi-finished cylinder liners, bearing sets, valves, valve guides, and gaskets.

The Caterpillar overhaul kit collection also includes separate overhaul gasket sets for selected engines, including the 3208 and 3064. These gasket sets should not be confused with complete engine rebuild kits containing internal engine components.

Our diesel engine rebuild kit buying guide explains important considerations when comparing kit contents and engine compatibility.

Overhaul Kits for Caterpillar Engines and Equipment

Browse rebuild kits for selected Caterpillar C-series engines and 3000-series applications, including the C3.3/C3.3B, C7.1, 3054/3054B, and 3064.

Some products are listed for specific equipment applications, such as Caterpillar 3054C/3054E engines used in selected backhoe loaders.

Other listings cover Mitsubishi engines installed in Caterpillar equipment, including selected excavators, forklifts, and skid steer loaders. For these applications, identify the installed engine rather than selecting a kit using the Caterpillar machine model alone.

For additional engine and equipment components, explore our Caterpillar replacement parts.

How to Select the Correct Caterpillar Overhaul Kit

Before ordering, compare your engine model, serial number, and required replacement components with the individual product listing.

Check piston specifications, crankshaft main bearing sizes, connecting rod bearing sizes, and cylinder liner requirements. Some kits offer different bearing-size options, while certain cylinder liners are semi-finished and require additional machining.

Confirm these specifications with your engine rebuilder before selecting a kit.

You can also browse our broader engine overhaul kit collection for other diesel engine rebuilding applications.

Need Help Finding the Right Caterpillar Overhaul Kit?

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.

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Frequently Asked Questions

How do I find the right overhaul kit for my Caterpillar engine?

Start by identifying your complete engine model and serial number. If the engine is installed in a Caterpillar machine, check the engine identification separately from the equipment model. Compare these details with the listed kit applications and specifications. Similar engine models may require different components, so we recommend confirming the exact engine configuration before ordering.

Does every Caterpillar overhaul kit include pistons, liners, and bearings?

No. Kit contents vary by product. Some rebuild kits include pistons, piston rings, cylinder liners, bearings, valves, and gaskets, while other products in this collection are overhaul gasket sets only. Check the itemized contents of each listing to confirm that it includes the components needed for your repair.

Q3. Can I choose a Caterpillar rebuild kit using only my machine model?

We recommend checking the installed engine model as well as the machine model. Some Caterpillar equipment applications in our collection use Mitsubishi engines, and a machine model alone may not identify the correct rebuild kit. If your equipment has had an engine replacement, use the identification details of the engine currently installed.

How do I select the correct piston and bearing sizes for my engine rebuild?

The correct sizes depend on your engine's specifications and measured condition. Some overhaul kits offer standard or alternative bearing sizes, and piston options may differ between listings. Have your engine rebuilder confirm the required measurements before ordering. Do not assume that standard-size components are suitable based on the engine model alone.

Do the cylinder liners in your Caterpillar overhaul kits need machining before installation?

Some kits contain semi-finished cylinder liners that require additional machining. This is specifically noted in certain product descriptions, including the C3.3/C3.3B overhaul kit. Check the liner specifications and product notes before ordering, and have your engine rebuilder confirm the required machining and installation measurements.

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