Proven parts.
Five star performance.
Quality-inspected Caterpillar used parts from trusted member dealers nationwide.
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Trusted CAT Dealers Nationwide
Why CDUPA
The CDUPA Advantage
Your trusted network for genuine Caterpillar used parts
Verified Member Dealers
Every seller is a vetted CDUPA member dealer you can trust.
Genuine CAT Parts
Authentic Caterpillar used parts, quality inspected.
Nationwide Network
Connected dealers across North America, ready to help.
Industry Expertise
Decades of combined Caterpillar parts knowledge.
Handpicked Inventory
Featured Parts
About CDUPA
United to Serve Caterpillar Used Parts Dealers
CDUPA (Cat Dealer Used Parts Association) is a forum for the exchange of technical information, education, and professionalism among Caterpillar used parts dealers. Together our members deliver genuine parts, deep expertise, and trusted service to the equipment industry.
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