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
  • CAN

Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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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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Jose Javier Garcia Fernandez
New York, US
★★★★★ 3
Med Quality prod
Size: Full, Color: Light Grey
A little wrinkle
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Reviewed in the United States on April 25, 2026
A
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Armie Sheffield
Alexandria, US
★★★★★ 5
Awesome product
Size: King, Color: Navy Blue
From this point forward, this is the only company that I would use. All is one color, and not having the white fabric in the middle is a bonus!
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Reviewed in the United States on May 14, 2026
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Cat
Battle Creek, US
★★★★★ 5
Bed pleated duster
Size: Full, Color: Beige
Lightweight great price easy to fit the bed
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Reviewed in the United States on April 16, 2026
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DMB
West Palm Beach, US
★★★★★ 5
Nice dark blue color
Size: Twin, Color: Navy Blue
Bought 2 dark blue for twin beds and they look good with my blue and white quilts covering the beds. There are some wrinkles in the cloth due to packaging which may relax with time. but don't show much due to the dark color. I did find any defects in the stitching or fabric on the items I purchased. A note for prospective buyers is that the dust ruffle covers the entire bed foundation, so get help to put on under a heavy mattress.
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Reviewed in the United States on April 18, 2026
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Verified Purchase
Francisco Sanchez
Phoenix, US
★★★★★ 5
Good product
Size: Queen, Color: Light Grey
Just perfect, fit exactly as intended
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Reviewed in the United States on June 6, 2026

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