KEEPING YOUR DIESEL FLEET IN TOP SHAPE

If reducing downtime and keeping your trucks on the road is your top priority, you’ve come to the right place.  Doc’s Diesel is your convenient, one-stop online shop for diesel filter maintenance. Genuine quality, 3rd-party tested filters, oil and additives at a great price. We cut out the middleman and those pesky markups you often find from OEM’s, dealerships, and parts stores.

OEM PERFORMANCE

Aftermarket filters - OEM form, fit and function.

CUT THE MIDDLEMAN

We buy straight from the source, removing those pesky markups you find from OEMS, dealerships & parts stores.

FITMENT GUARANTEED

If it doesn’t fit, we will offer you a replacement or a refund (*some conditions apply).

Shop By Engine Type

REAL

OVER 5,000,000 REVIEWS

4.5 Rating

Only place I'll order from

Experience was over the top. Can't thank the team at Docs enough, they will have my future business and will be recommending them to all my friends and family!

Amazing

I was thinking about buying this for too long, bought it and I love it. fits perfect, and it’s super soft. i’ve also bought filters from them and they have amazing products over all and shipping is on point.

Excellent products and price

First time customer, but Doc’s will be my go to from now on. Filters were excellent quality and fit like OEM.

SAE OFFICIAL

3rd Party Tested

Rigorously tested and inspected to meet OEM Micron and efficiency ratings. View our test results from SGS, the world’s leading inspection & certification company. Additional reports are added regularly.

SEE TEST RESULTS

SAE OFFICIAL

3rd Party Tested

Rigorously tested and inspected to meet OEM Micron and efficiency ratings. View our test results from SGS, the world’s leading inspection & certification company. Additional reports are added regularly.

SEE TEST RESULTS
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Synthetic blend media selected to maximize efficiency and minimize resistance.

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SMALL TOWN ROOTS,
BIG DREAMS

Owned and operated in small-town Ohio with a history for aftermarket automotive parts.

FREQUENTLY ASKED QUESTIONS

Will it void my warranty?

New vehicle warranties stay in effect when Doc's Diesel filters are installed correctly and according to engine manufacturer's recommendations.

How Fast Do You Ship?

Doc’s Diesel prides ourself on shipping your order out in under 24 Hours on week days! If you order before 2pm EST it will ship same day. We also offer Ground, 2-Day, and Next Day Air Services. Please note Next Day Air UPS goes by business days. So if you order next day air saturday, we will ship Monday and you will receive Tuesday. Standard Ground Shipping is 3-5 business days!

Are you in stock?

Doc’s Diesel works hard to stay in stock at all times which makes Doc’s a trusted source for your truck’s maintenance needs.

Where are your filters made?

Doc’s Diesel has many prominent suppliers with over 40 years in the industry. Doc's Diesel Products are made in Taiwan, China, and USA. Doc’s Diesel Fuel Filters are made in Taiwan. Doc’s Air, Oil, and Cabin Air filters are made in China. Doc's Diesel Treatment is made in the USA. Not all filters are made the same, Doc’s uses a unique 3 layer media to ensure peak efficiency.

Can I purchase Bulk?

YES, Doc’s Diesel has a strong b2b program, where you or your company can receive a discount for bulk ordering. Find it Here

Where are you located?

Bryan, Ohio

What’s Shipping Price?

Shipping is FREE over $99 in the lower 48. Shipping prices under $99 are based off UPS discounted rates!