2001-2019 Duramax Allison 1000 Transmission External Spin On Filter (29539579)

Fits

Note: W/ Allison 1000/2000 Transmissions

Don't forget to service your GM vehicle's Allison 1000 or Allison 2000 transmission with the correct OEM replacement, the Allison Spin-On Filter. To keep your transmission in tip-top shape, it is recommended to change this filter every 12,000 miles. Be sure not to discard the filter magnet that's sandwiched between the filter and transmission - it might stick to the filter and get thrown away by accident. If that happens, no worries - we have replacement Allison filter magnets available for purchase.

Part Number: 29539579

• High-Quality
• OEM Replacement
• Direct Fit
• Non-Slip Grip Indentations

• Beginning early to mid-September 2021, Allison will undergo a temporary change to the color used to produce this part number. Please note you may receive a black spin-on filter. 

What is the recommended replacement interval for the spin-on Allison filter?

It's recommended to replace the spin-on filter on your Allison transmission every 12,000 miles for the best transmission health and longevity. 

I accidentally threw away my filter magnet. Do you sell them separately?

Don't worry, it is a common mistake, and we have the magnets available click here to see the listing. 

My transmission did not have a magnet when I removed the spin-on filter. Do I need one?

Yes. All Allison 1000 and Allison 2000 transmissions were originally equipped with a magnet between the spin-on filter and the transmission from the factory. Even seasoned mechanics sometimes slip and discard the magnet with the filter. If your transmission is missing the filter magnet replace it with a new one.