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 22 - Aug 27

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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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4.4 ★★★★★
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John Steenland
Lexington, US
★★★★★ 5
Quality cable at an unbeatable price
Size: 2AWG 15FT + 15FT, Color: Red + Black
Wish I found this cable sooner! This cable is much better than the cabke I was previously purchasing! Crimps well, copper is of high quality, coating is excellent, bends great, price is great! Overall very satisfied!
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Reviewed in the United States on April 22, 2026
C
Verified Purchase
Cradgl Tantandolo
Fort Morgan, US
★★★★★ 5
good quality
Size: 2AWG 15FT + 15FT, Color: Red + Black
Well, this is some stiffness, but manageable.
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Reviewed in the United States on March 27, 2026
E
Verified Purchase
Evan Dietzen
Fort Morgan, US
★★★★★ 5
Good Cable
Size: 2AWG 15FT + 15FT, Color: Red + Black
Work as intended. I used it to run some cable to a second battery from the first. If you're going to do that though, 100% have two fuses. One next to each battery post. It's pretty heavy cable too, good stuff.
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Reviewed in the United States on November 9, 2025
D
Verified Purchase
Doby bertrand
Louisville, US
★★★★★ 5
Perfect
Size: 2AWG 15FT + 15FT, Color: Red + Black
Good quality wire
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Reviewed in the United States on May 26, 2026
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
Quality and very flexible
Size: 2AWG 15FT + 15FT, Color: Red + Black
I was looking for replacement welder cables that needed to be very flexible. These worked perfectly.
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Reviewed in the United States on November 13, 2025

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