SKU: 89175400512

Mishimoto Performance Intercooler 17-19 GM 6.6L Duramax L5P

Sale price$923.82 Regular price$1026.47
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Mishimoto Performance Intercooler 17-19 GM 6.6L Duramax L5PBuilt to handle heavy payloads, provide impressive performance, and execute years of reliable service, the 2017 2019 6. 6L Duramax L5P is an absolute workhorse. However, as with any factory vehicle, some systems have limitations and areas that can be improved. Mishimoto's engineering team has specifically identified the L5P's intercooler system as one of these areas. As a result, they've developed a performance intercooler kit for the 2017 2019

Built to handle heavy payloads, provide impressive performance, and execute years of reliable service, the 2017-2019 6.6L Duramax L5P is an absolute workhorse. However, as with any factory vehicle, some systems have limitations and areas that can be improved. Mishimoto's engineering team has specifically identified the L5P's intercooler system as one of these areas. As a result, they've developed a performance intercooler kit for the 2017-2019 Chevrolet/GMC 6.6L Duramax L5P.

This kit includes a massive 68mm-thick bar-and-plate intercooler with cast-aluminum end tanks and 3.0" mandrel-bent piping for maximum cooling and flow. Their intercooler is 70% thicker than stock and is designed to be a robust unit capable of withstanding high temperatures and boost pressures without cracking. In addition, their end tanks also feature larger inlets and outlets for even more flow. That, coupled with the larger intercooler core, reduces restriction by over 64% compared to the stock intercooler.

Mishimoto's kit also includes hot-side and cold-side intercooler piping with DuraCore boots and constant-tension T-bolt clamps. Their 3.0" mandrel-bent aluminum piping eliminates the restrictive stock resonator and improves flow by up to 55% over stock. The Mishimoto L5P Duramax intercooler pipes fit like stock thanks to the included CNC-machined quick-disconnect fitting with new O-rings and spring clip, bead-rolled pipe ends, and mounting locations for factory sensors and harnesses. The pipes also include three bungs that can be drilled and tapped for sensors or water/meth injection.

The Mishimoto 6.6L Duramax L5P Performance Intercooler Kit is a direct fit for your 2017-2019 Chevrolet or GMC HD truck* and is a fantastic upgrade for both stock and heavily modified trucks. Like all of their Duramax performance parts, this L5P intercooler kit is protected by their signature Mishimoto Lifetime Warranty.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery 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
SKU: 89175400512

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4.8 ★★★★★
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R
Verified Purchase
Reader's Edyn
Lowell, US
★★★★★ 5
Awesome Vent Mount That Actually Stays Put
Color: Black
These vent clips are awesome. Setup was fast and easy, and it holds the phone very securely without bouncing around while driving. I also like that it has a 360° adjustment so you can get the angle right, and it doesn’t block the airflow like a lot of other vent mounts. Overall, it works great and does exactly what it’s supposed to.
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Reviewed in the United States on January 17, 2026
J
Verified Purchase
Javagirle
Louisville, US
★★★★★ 4
Great attachment and sturdy
Color: Black
This item is great! The mount to the vent is secure. The only issue I have is when I want to move the arm to a different position, you have to unscrew the mount, and sometimes it comes undone and I have to attach to the vent again once I get it in the correct position. It could be because of my narrow vent though. It also jiggles a little on bumpy roads, but that is to be expected with something that extends so far. I like that the part that holds the phone doesn't cover the camera, so I can actually take a photo of the road with it. I would definitely recommend and/or buy this again.
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Reviewed in the United States on May 12, 2026
K
Verified Purchase
Ks
Lake Worth, US
★★★★★ 5
Excellent product
Color: Black
Works great. Easy to assemble, phone is secured firmly, doesn't block vent. It is as described.
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Reviewed in the United States on April 28, 2026
R
Verified Purchase
RSinIDAHO
Alexandria, US
★★★★★ 5
Buy it! You won't regret it!
Color: Black
I was unsure of this holder since I live in the mountains, and drive on rough roads daily. This is by far the best phone holder I have used! It self adjusts on the bumpy roads, but thats expected. On city roads, it works perfectly! My phone is on the larger side, and it holds its weight just fine.
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Reviewed in the United States on April 22, 2026
C
Verified Purchase
CODY LOVE
Whiting, US
★★★★★ 3
Air vent is not blocked
Color: Black
It doesn’t hold the phone tightly I had to change the part where u put the phone other than that it does not block the air vent
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Reviewed in the United States on May 26, 2026

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