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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - SilverThere's no greater enemy for a transmission than heat. Whether your 2017 2019 Chevy GMC 6. 6L L5P Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool. Luckily, Mishimoto has developed a direct fit transmission cooler to do just that. Our 2017 2019 Chevy GMC 6. 6L L5P Duramax transmission cooler utilizes a stacked plate design for maximum
There's no greater enemy for a transmission than heat. Whether your 2017-2019 Chevy/GMC 6.6L L5P Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool.Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2017-2019 Chevy/GMC 6.6L L5P Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from its durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 67-percent greater core volume, and 164-percent greater fin surface area than the stock 2017-2019 L5P Duramax transmission cooler.The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry-free cooling as long as you own it.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
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Product Reviews
★★★★★ 5
DIY
Good price and fit my 2018 subaru crosstrek. Saved money switching it out myself. Super easy to do it yourself
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Perfect fit
Perfect fit on my 2019 Subaru Forester.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Easy install
Perfect fit
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Reviewed in the United States on March 24, 2026
★★★★★ 5
EPAuto stuff works and fits
Love their auto filters, tools and tire air compressers.
EPAuto stuff works great and always fit!
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Great price, easy install
OEM fit and very easy to install. No issues at all — everything worked exactly as expected.
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Reviewed in the United States on November 19, 2025