Diesel Engine Parts
Genuine OEM & Quality Aftermarket
Diesel Parts Distribution Center sources and supplies parts for Cummins, Caterpillar, and other major diesel engine manufacturers. Based in San Diego, CA — shipping nationwide.
Your Source for Diesel Engine Parts
Diesel Parts DC is a parts distribution company specializing in diesel engines. We source genuine OEM parts directly from manufacturers at wholesale pricing, and we also carry high-quality aftermarket alternatives for customers looking for cost-effective options without sacrificing reliability.
While we specialize in Cummins and Caterpillar engines, we are not limited to just those brands. If you need a diesel engine part, contact us with the part number or engine model and we will source it for you.
Brands We Work With
We specialize in — but are not limited to — the following:
KTA38 · KTA50 · QSK60 · KTA19 · NTA855 · QSM11/M11 · 6BT/6BTA5.9 · 6CTA8.3 and other Cummins engine platforms. Genuine parts purchased wholesale direct from Cummins USA.
C13 · C15 · C18 · C27 · C32 · 3406 · 3408 · 3412 · 3516 and other CAT diesel engine platforms. OEM and quality aftermarket components available.
🔧 Other Manufacturers
Need parts for another diesel engine brand? We can source components across a wide range of manufacturers. Get in touch with your part number or engine model and we will find what you need.
Why Diesel Parts DC
Genuine & Aftermarket Options
We carry authentic OEM parts and vetted aftermarket alternatives, so you get the right part at the right price point.
Wholesale Direct Pricing
Our direct relationships with manufacturers mean competitive pricing passed on to you.
Part Number Cross-Referencing
Send us any part number and we will confirm compatibility, availability, and pricing.
Worldwide Shipping
Based in San Diego, California. We ship domestically and internationally to fleets, shops, and operations worldwide.
Need a Part?
Contact us with your part number, engine model, or equipment details and we will get you a quote — typically within the same business day.
📧 info@dieselpdc.com | 📞 (858) 733-2333
Monday–Friday, 10am–5pm PST | San Diego, California
Diesel Parts DC 