Caterpillar Parts Lookup by Serial Number

Your Caterpillar serial number (also called the Product Identification Number or PIN) is typically stamped on a metal plate located on the machine's frame, engine block, or cab door jamb. It is usually an 8-character alphanumeric code for older machines or a 17-character code for newer CAT equipment. Once located, use it on the Radiator Supply House search tool to identify compatible cooling components.

A CAT part number is a unique identifier assigned by Caterpillar to each individual replacement component in their parts catalog. It typically follows a numeric or alphanumeric format and corresponds to a specific part configuration, dimensions, and application. At Radiator Supply House, many listings cross-reference OEM CAT part numbers so you can confirm compatibility before ordering aftermarket cooling components.

Radiator Supply House stocks a wide range of Caterpillar-compatible cooling components including radiators, radiator cores, oil coolers, hydraulic oil coolers, charge air coolers, aftercoolers, AC condensers, fuel coolers, complete cooling packages, top and bottom tanks, shrouds, gaskets, expansion tanks, and heater cores — covering over 1,200 SKUs for CAT equipment.

The catalog covers a broad range of Caterpillar equipment including excavators, dozers, wheel loaders, motor graders, compactors, generator sets, forklifts, and mining trucks. Specific models include the 953C, 321D, D3, D4, D7G, D7G2, 910, 950E, 785, 794, 3512, 3516, C18 Gen-Set, CP-533C, CS-531C, CB-434C, and many more.

Radiator Supply House supplies aftermarket replacement cooling components engineered to OEM-equivalent specifications under the ICEBOX Replacement Parts brand. These parts are designed to match the fit, form, and function of original Caterpillar components, providing a cost-effective alternative to OEM parts without compromising on cooling performance or durability.

Pricing at Radiator Supply House is not publicly displayed. To view pricing and availability for any Caterpillar cooling component, you need to create a trade account and log in to the website. Alternatively, you can contact the team directly by phone at 1-877-615-3002 or via WhatsApp and Facebook Messenger chat support during business hours, Monday through Friday, 7AM–5PM.

Radiator Supply House serves multiple industries with CAT-compatible cooling components, including Construction & Mining (dozers, excavators, wheel loaders, mining trucks), Industrial & Material Handling (forklifts, generator sets), Oil & Gas Operations (frac, drilling, and generator set equipment), and Agriculture & Forestry (tractors, combines, and forestry machines). Parts are available for a wide range of CAT equipment used across all these sectors.