Doc's Diesel Chevrolet/GMC 6.6L Duramax Transmission Filter Kit 2001-2019
Doc's Diesel Chevrolet/GMC 6.6L Duramax Transmission Filter Kit 2001-2019
Doc's Diesel Chevrolet/GMC 6.6L Duramax Transmission Filter Kit 2001-2019
Doc's Diesel Chevrolet/GMC 6.6L Duramax Transmission Filter Kit 2001-2019

Doc's Diesel

Chevrolet/GMC 6.6L Duramax Transmission Filter Kit 2001-2019

Replaces 29539579

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  • Item is in stock
  • Free USA Shipping Over $99*
  • 3rd-Party Tested

Doc's Diesel Transmission Filter Kits:

Doc's Diesel Transmission Filters are made to keep your rig shifting smoothly and running right. They trap dirt and debris that can wreck key parts like the torque converter and fluid pump. A clean transmission filter means less heat, less wear, fewer costly repairs, and puts less strain on your engine, which means better fuel mileage.

Product Details:

  • Rigorously tested for efficiency, capacity, and burst strength
  • Durable construction, high-flow filter media
  • Spring Activated Relief Valve (when applicable)
  • Anti-Drain Back Valve helps prevent engine dry start (when applicable)
  • Doc's auto parts all have an OEM design, fit, and function that meet or exceed OEM Requirements

Fitment, Interchange + Doc's Part Number:

Vehicle Fitment:

  • 2001-2019 Chevrolet/GMC 6.6L Duramax 2500HD/3500HD

Interchange:

  • Doc's DF209: Allison 29539579

Doc's Part Number:

    DF209

Change Interval:

Above all recommendations, change according to your vehicle’s manufacturer’s warranty.

  • Transmission Filters: Every 25,000-50,000 miles or 60,000 miles maximum

Note: Most OEM recommendations are based on regular driving, NOT hauling. Doc’s Diesel recommends changing transmission filters earlier than OEM recommended guidelines for preventative maintenance and to ensure the longevity of your transmission.

FIND THE PARTS YOUR TRUCK NEEDS

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CLEAR FILTERS

If this product does not fit your vehicle, you will be redirected to products that do fit your vehicle.

Doc's Diesel Transmission Filter Kits:

Transmission filters trap impurities in the fluid, ensuring smooth gear shifts and preventing expensive repairs. Regular filter changes protect key components like the torque converter and fluid pump from damage caused by contaminants. Without proper maintenance, a clogged filter can lead to overheating, premature wear, and even transmission failure, which can be costly to repair. Additionally, a clean filter improves transmission efficiency, reducing engine strain and enhancing fuel economy by ensuring smoother shifts and lower fuel consumption.

DOC'S DIESEL

DIESEL TRUCK MAINTENANCE MADE EASY.

Your one-stop online shop for diesel truck maintenance. Premium Filters, Brakes, Oil & More for Cummins, Powerstroke, Duramax, & Ecodiesel trucks. Do-it-Yourself with Doc’s Diesel. Doc’s cut out those pesky markups you often find from OEM’s, dealerships, & parts stores. Keep your truck in top shape and avoid costly breakdowns. Spend less time searching & more time on the road.

Customer Reviews

Customer Reviews

Based on 11 reviews
91%
(10)
0%
(0)
0%
(0)
0%
(0)
9%
(1)
R
Rick Reigenborn
Docs filters

I really like using Doc’s filters, it’s nice getting the correct filters delivered right to the house. Quick, easy & convenient at an affordable price.

A
Alan Chaves
How I like the product

The service I got from Dox was very good. They followed up with me to check to make sure everything was OK. I have not had time to put the products in my truck yet, but I will in another thousand miles.

J
Jeff Gardner
New truck for me..

So far so good.. I had a transmission shop install it..

M
Mike Blair
IT's A FILTER NOT MUCH TO SAY

Received filter quickly. Fits my truck like it's supposed to. Plan on changing this out at the same interval as my fuel filter.

D
Darcy Munguia
Transmission filter

Identical in size 2 original OEM works great

M
MICHAEL MULLINS
Great

Great filter and even greater price

P
Peter Turcotte
Excellent

Can’t see any difference between Docs and OEM except for PRICE.I have had several dealer ASE mechanics Say the same.Will continue to use.

K
Kyiowa Greenfield

One of the few items that was actually correct for my order, this company will send you gas filters for your diesel engine 😂

J
Jerry Bush
Perfect

Perfect fit, easy to swap. Will continue to use. Great price and free shipping!!

D
David Thompson
2020 up Silverado’s with New Allison

False advertisement the new Duramax’s does not take a external transmission filter…….

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FREQUENTLY ASKED QUESTIONS

What’s your shipping policy?

We offer Free Shipping over $99 on all orders within the contiguous United States. Expedited shipping is available for an additional charge. Alaska, Hawaii, and Canada will have shipping fees.

Where does Doc’s Diesel ship to?

We ship to the U.S. and Canada! For Canada orders, any taxes, duties, or customs fees are the responsibility of the buyer. We handle orders in 1-2 business days (Most of the time in less than 24 hours if ordered on a week day). Depending on location, U.S. orders will arrive between 3-5 business days from your order. Canada orders typically arrive within 7-11 days.

What is your warranty?

View our Official Limited Warranty Doc’s Diesel Filters meet or exceed (OEM) Original Equipment Manufacturer’s requirements. New vehicle warranties stay in effect when Doc’s Diesel filters are installed correctly and in conjunction to engine manufacturer’s recommendations.

Where is my order?

If you have not received your confirmation email us sales@docsdiesel.com so we can get everything sorted out ASAP. If you received a confirmation but no shipment email, we are still working on your order. Don't hesitate to email sales@docsdiesel.com if you would like more information and we'd be happy to check on your order. Please Include your order # in the email.

For Tracking information, it will be in your shipment email. Check the tracking # first or the latest updates. Doc's Diesel, just like you are at the mercy of shipping companies after a shipment leaves our warehouse. If there's been an issue with shipment we will happily work with you to figure out where the order is and what we can do to help. Once again you can reach out to sales@docsdiesel and include your order # in the email. Thank You.

Why didn’t I get a confirmation email?

Sometimes an email may get sent to your spam folder! So don’t forget to check that. If you need more help to hesitate to reach us at sales@docsdiesel.com

How do I start a return?

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. Email us and we will email you a return slip. Once filters are received, we will refund your money within 2-4 business days. We will refund to your original form of payment minus the return slip fees.

To start a return email sales@docsdiesel.com