Right part. Right time. Right place. H.O. Penn is committed to customer service excellence, providing you with genuine Cat® parts along with industry-leading knowledge to bring you the parts you need to get the job done. Through our vast dealer network, we are able to offer the largest selection of heavy equipment, truck engine and power generation parts for sale in Connecticut and lower New York. As the region’s authorized Cat dealer, we deliver knowledgeable service for everything we sell, and we can help your company find the right replacement part to get your equipment up and running quickly.


25773-RemanProCat parts are manufactured to precise specifications, built for durability, reliability and productivity. H.O. Penn is your complete source of parts for all Cat equipment.

H.O. Penn stocks over 68,000 line items throughout our five branches. We fill an average of 98% of all construction machine, truck engine and power generation parts orders in only 24 hours. In addition to our own warehouses, we draw off the vast system of warehouses, manufacturing plants as well as other Cat dealerships to obtain parts as quickly as possible for you. Our overnight trucking system guarantees quick service to fulfill your parts needs.

The H.O. Penn PartStore is a fast easy way to order Caterpillar parts online. The PartStore gives you access to up to date parts books and schematics. You can check real time parts availability, review pricing, examine remanufactured parts options and place your order for Caterpillar parts online.

Used Cat Parts

Buying used saves you money and, for many older machines, is the only way to find replacement parts that have been discontinued or have limited availability. Buying used is also an excellent choice for complex repairs in which purchasing an entire assembly (be it of a transmission, engine or other major component) is favorable to buying parts individually. If used Cat parts are more in your budget, we have a full line. View our line of used Cat parts.

Remanufactured Parts

Remanufactured parts are another excellent alternative to buying new. Cat-certified reman parts are fully rebuilt by our factory trained technicians and offer comparable reliability and performance at a fraction of the cost of new. Reman parts are also better for the environment, as they minimize waste and don’t require the same raw materials used to produce a new part. Cat dealers recycle an average of over 134 million pounds of material a year through part remanufacturing!

  • Dedicated staff of over 50 parts personnel
  • Over 68,000 items in inventory
  • Over $10 million in parts inventory
  • An average 98% of all parts orders are filled within 24 hours
  • Remanufactured parts available with the same warranty as new but priced 25-75% less

Contact your local dedicated parts and service representative!