Payment Policies

Checkout Now! Click the Pay Now button at the top of this listing to immediately proceed with our checkout and payment process. Please note that the Pay Now button is ONLY available after completing a Buy It Now purchase.

Shipping Policies

We offer Free Shipping over $25 on all orders within the contiguous United States.

Return Policies

If you are unhappy with your purchase for whatever reason, and it's within 30 days from your purchase, you can return your diesel filters back to us! Item has to be in new condition. Please open an eBay Return Request, so that a refund can be sent through the Return Request upon return.

About Doc's Diesel

At Doc’s Diesel, our mission is simple: make diesel truck maintenance easy and affordable. Frustrated by overpriced dealership service and hard-to-find parts, we set out to create premium replacement filters that meet or exceed OEM standards—without the middleman.

We offer premium diesel filters, oils, and additives for Cummins, Powerstroke, Duramax, and EcoDiesel, which have been tested by leading labs for reliability and performance. Our lineup includes engine air filters, cabin air filters, fuel filters, oil filters, and more—engineered for trucks that work as hard as you do.

Proudly rooted in small-town Ohio, we’ve quickly grown into a trusted name serving all 50 states with fast shipping, expert customer service, and a seamless ordering experience. At Doc’s Diesel, you're not just buying filters—you’re joining the spirit of working hard, dreaming big, and family values.

Contact Doc's Diesel

Questions or comments? We welcome your inquiry! Please click here to contact us, and we will get back to you as quickly as possible.