Buy Cat® Parts Online

Get Genuine Caterpillar Parts Online

With more than 1.4 million Cat parts in stock and an inventory of certified reman and refurbished components, the Caterpillar Parts Store is there for you. The H.O. Penn team is also offering assistance in choosing and finding replacement parts and installing them on your equipment at our five state-of-the-art New York and Connecticut facilities.

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Get the Right Parts for Your Caterpillar Equipment

Since 2016, the home for finding all Cat parts has been By choosing the Cat Parts Store for all your equipment replacement part or rebuilding needs, you can streamline your maintenance, repair, and rebuild processes, whether you’re maintaining your machinery in-house or with our team of certified technicians at our five state-of-the-art shops.

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H.O. Penn’s Expansive Inventory on Parts.Cat.Com

When you arrive at the online Caterpillar® Parts Store, you’ll find an inventory of more than 1.4 million Cat parts, including the following:

The online shop also offers its parts in several quality formats, including:

With a straightforward search feature, which lets you enter your serial or part number, you can find your equipment parts faster.

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    Reasons to Shop for Cat Parts Online

    Real-Time Pricing and 24/7 Access

    Whether you’re at your worksite or office space, you can access the Cat Parts Store 24 hours a day, seven days a week — even if you’re on your mobile or tablet device. With real-time pricing and availability, the Caterpillar Parts Store lets you move without delay when it comes to repairing your construction equipment and rebuilding your on-highway truck.

    Convenient Payment and Order Options

    The technology behind Cat machinery’s safety, productivity, and sustainability features may be complex, but ordering and paying for that equipment’s parts is far from it. You can use your company credit card when you’re ready to purchase. For faster ordering, you can register and create an account for free, accessing your payment and shipping information and order updates in one place.

    Fast Checkout and Shipping

    You can shop and checkout fast at the Cat Parts Store with your customer account. Shipping is also simple, letting you pick the product up from one of our six locations across New York and Connecticut or having our team package and ship the product to your preferred address. After you’ve paid and confirmed your order, you’ll receive an email confirmation, keeping you in the loop on your order’s progress.

    Comprehensive Warranty

    All parts, whether new, used, or remanufactured, come with a six-month warranty to emphasize the quality behind Caterpillar. If our team or yours discover an error with any replacement part, we’ll ensure it’s replaced. Returns for all other parts, whether for construction equipment, on-highway trucks, or marine power generators, require a review of our 30-day return policy.



    Cat Equipment is surprisingly affordable for any budget!

    H.O. Penn is here for your equipment needs!  Find a Location or Contact Us today for a free Quote!

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