Tru-Cool Max LPD47391 47391 Low Pressure Drop Transmission Oil Cooler

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Price: $135.40    

Product Feature

• Protects against the #1 cause of transmission failure
• Performance-rated for cars, vans & light trucks
• Advanced all-aluminum design
• Combines maximum cooling
• Lifetime Manufacturer's Limited Warranty

Product Description

Long Tru-Cool Max transmission cooler P/N LPD47391. This cooler is rated at 40,000 GVW and measures 8.5"x22.75"x1.25". This is a stacked plate, low pressure drop unit. This cooler has 3/8" inverted flare fittings. This is the ultimate cooler for heavy towing and is a must for heavy duty applications, including racing. Heat is what kills an automatic transmission. If you want to extend the life of your transmission and avoid or prolong a costly rebuild, this is very cheap insurance. All parts and instructions are included to mount and plumb this cooler. Advanced cooling protection for car, van, light truck, R.V. and towing applications. When Automatic Transmission Fluid is cold it is viscous. The unique Tru-Cool design allows the colder, thicker ATF to flow more efficiently through two open bypass channels positioned at the top of the cooler. As operating temperatures increase, the ATF becomes hotter and thinner. It's then directed through the core where it is cooled. Tru-Cool's highly efficient cooling technology combines improved protection against lube system failure with optimal heat transfer.

Tru-Cool Max LPD47391 47391 Low Pressure Drop Transmission Oil Cooler Review

This was a very simple bolt on replacement that is roughly 4x the cooling area of the sad lttle Transmission cooler found on our 2000 3/4 ton 2500 Chevy Suburban. The performance of this stacked plate cooler will far exceed any tube and fin cooler found at your local auto parts store.

Pulling a 10,000 boat/trailer we were seeing unacceptably high temps at 200* on flat Florida roads. After the install there was no way to get the temps above 150*, even in stop n go city traffic on a warm day. The kit came with everything I needed to do the install except another quart of whatever oil blend that you'll need to top off the transmission after it gets to running temps.

There's a great thread w/pics on the "GMtruckclub" forum discussing a Chevy/GMC "new-transmission-cooler" targeting the install of this specific cooler. (Amazon deleted my link but it's an easy find)

A great cooler and a VERY easy install! Good luck, Mike

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