Fluidyne Allison 1000 High Performance Transmission Fluid Cooler for 20-24 GM 6.6L Duramax L5P
SKU: 86774969735

Fluidyne Allison 1000 High Performance Transmission Fluid Cooler for 20-24 GM 6.6L Duramax L5P

Sale price$224.55 Regular price$249.50
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  • USA
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Fluidyne Allison 1000 High Performance Transmission Fluid Cooler for 20-24 GM 6.6L Duramax L5PIf you tow heavy, spend time in hot weather, or use your truck for demanding daily work, keeping transmission temperatures under control becomes a lot more important. This Fluidyne High Performance Transmission Fluid Cooler is designed to give your GM 6. 6L Duramax significantly more cooling capacity than the factory setup, helping your transmission stay cooler and more consistent under load. With over 4 times the heat exchanging capacity of the stock

If you tow heavy, spend time in hot weather, or use your truck for demanding daily work, keeping transmission temperatures under control becomes a lot more important. This Fluidyne High Performance Transmission Fluid Cooler is designed to give your GM 6.6L Duramax significantly more cooling capacity than the factory setup, helping your transmission stay cooler and more consistent under load. With over 4 times the heat exchanging capacity of the stock cooler, it helps reduce heat buildup during towing, hauling, and long drives.

Built specifically for Chevy and GMC 2500HD and 3500HD trucks equipped with the 6.6L Duramax and Allison 1000 transmission, this direct bolt-in replacement installs at the factory mounting locations for a cleaner, easier installation process. The aerospace-grade aluminum bar plate construction, proprietary fin design, and extremely dense fins-per-inch layout maximize cooling performance while maintaining minimal pressure drop. Fully welded internal splitter plates help prevent contamination between hot- and cold-side fluids, improving durability and long-term reliability.

Finished in a durable silver powder coat with a proprietary heat-wicking compound, this dual-pass transmission cooler is built to handle demanding conditions while maintaining reliable performance. Featuring -10 AN female O-ring fittings, it’s a strong upgrade for Duramax owners looking for better cooling performance and added transmission protection.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 86774969735

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4.8 ★★★★★
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Recensui
Omaha, US
★★★★★ 5
Hopefully This One Will Stop the Critters
This appears to be a nice filter. We have had problems with mice getting in the vehicle through the air vent intake. This is another poor design of the Jeep Grand Cherokee. We had the same issue with an earlier year of the same model and I ended up putting a grill in front to prevent the critters from coming in. I’m hoping this ai filter will be more effective as it is significantly stiffer than other filters. I think the critters are able to lift the end of the filter to slip by and get in the cab. Time will tell, but I do like this one for potentially being more difficult to go by. I would hope Stelantis would fix this, but I won’t hold my breath.
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Reviewed in the United States on February 4, 2025
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Verified Purchase
The Evan
Draper, US
★★★★★ 5
Good filter
Perfect fit
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Reviewed in the United States on December 4, 2025
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Linda Novosel
Lake Worth, US
★★★★★ 5
Best We Have Had!
Best we have had! Easy to change & noticeable difference inside car!
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Reviewed in the United States on May 30, 2026
E
Verified Purchase
Emmanuel Tshuma
Phoenix, US
★★★★★ 5
Product quality
Great filter and good quality l noticed a difference soon after installation, packaging was outstanding l recommend the item.
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Reviewed in the United States on January 24, 2026
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Verified Purchase
Nick The Plumber
Whiting, US
★★★★★ 5
Glad I bought this brand
Wow, it is a huge upgrade from a factory filter.. this was great price.. dealership wanted double for just a regular filter.. Will buy again
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Reviewed in the United States on November 27, 2025

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