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Ships within 48 hours · Estimated delivery Sep 18 - Sep 23
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Description
Merchant Automotive Transmission Cooler Line Repair Kit 06-10 6.6L GM DuramaxOne of the most plaguing issues of owning an Allison equipped Duramax truck are the leaky transmission cooler lines. This kit from Merchant Automotive will eliminate your woes once and for good. A permanent solution to a growing problem. As these trucks are getting a few years older, the transmission cooler lines can start to develop leaks. This is more common in cold weather as the rubber hose on the line shrinks and allows leaks around the factory
One of the most plaguing issues of owning an Allison equipped Duramax truck are the leaky transmission cooler lines. This kit from Merchant Automotive will eliminate your woes once and for good.A permanent solution to a growing problem. As these trucks are getting a few years older, the transmission cooler lines can start to develop leaks. This is more common in cold weather as the rubber hose on the line shrinks and allows leaks around the factory crimp.
Install the Merchant Automotive repair kit for a no hassle repair you won't have to worry about again. Constructed of D.O.T. approved hose and able to withstand pressures of nearly 2000 PSI. Cut the factory line 1/2" from the factory crimp and install these lines. Properly sized and ready to install.
Add the Mini Tube Cutter, 1/8"-5/8, in the kit to insure proper cutting of your transmission lines for a clean installation.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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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
4.1 ★★★★★
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Product Reviews
★★★★★ 5
Absolutely what I needed.
Color: Orange4pro
Fast shipping. Exactly as described.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
Great product
Color: Orange4pro
Strong magnet!!!
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Reviewed in the United States on December 9, 2025
★★★★★ 5
Husband approved
Color: Orange4pro
They work great in my husband's garage to hold tools, extension cords, brakes, shovels, etc.
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Reviewed in the United States on July 6, 2025
★★★★★ 5
Lots of holding options
Color: 64‘’ Metal Hooks
Hold more than I thought
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Reviewed in the United States on January 2, 2026
★★★★★ 3
If you get it don't use the hardware.
Color: 48‘’ Metal Hooks
It's an ok wall rack but the hardware is total garbage and will strip out every time.
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Reviewed in the United States on May 17, 2026