Thank you to all who made Dyno Day special!

Monitor your FASS Fuel Filter Life with FASS Connect!

Randy's Transmissions  |  SKU: RT-A1-1516

FLUIDYNE HEAVY DUTY TRANSMISSION COOLER - 15-16 LML DURAMAX

Regular price USD 49900

Can I pick up my order or have it installed at your shop?

Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.

How do I know if this part fits my vehicle?

Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.

What if I need to return a product or it’s defective?

Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)

What's the lead time on custom or fabricated parts?

Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.

Description

Excessive heat is one of the leading causes of transmission failure, shortening its lifespan and leading to costly repairs. OEM transmission coolers often fail to provide sufficient heat dissipation, especially in demanding conditions, leaving your transmission vulnerable to overheating. For those looking to protect their investment and extend the life of their transmission, an upgrade to a more efficient cooling solution is essential.

The Fluidyne High Performance Bar and Plate Transmission Fluid Cooler is the perfect solution for the 2015-2016 GM 6.6L Duramax. Engineered to offer four times the heat dissipation of factory coolers, this advanced cooler ensures your transmission runs cooler and more efficiently, even under the toughest conditions.

Designed with the highest fin density per inch available on the market, the Fluidyne cooler delivers superior cooling performance. Its fully welded internal splitter plates prevent any cross-contamination between hot and cold fluid streams, maintaining the purity and effectiveness of your transmission fluid. Constructed from aerospace-grade aluminum with a bar and plate design, this cooler maximizes cooling capacity while minimizing pressure drop.

This cooler is a direct bolt-in replacement, utilizing your existing factory mounts for a hassle-free installation. It’s also powder-coated with a proprietary heat-wicking compound to enhance thermal efficiency even further. Backed by a limited lifetime warranty, the Fluidyne High Performance Cooler guarantees reliable, long-lasting performance for your vehicle.

Key Features:

  • Over four times the heat dissipation capacity compared to stock coolers
  • Direct bolt-in replacement for easy installation
  • Maximum fin density for superior cooling
  • Fully welded internal splitter plates to prevent fluid contamination
  • Tested up to 250 PSI against leaks and ensure optimal performance. 
  • Aerospace-grade aluminum with bar and plate construction for optimal durability
  • Proprietary fin design for enhanced thermal performance
  • Powder-coated with a specialized heat-wicking compound
  • Limited lifetime warranty for peace of mind