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Key Features
Features
Direct fit for 2017-2019 Chevrolet/GMC 6.6L Duramax L5P
Includes performance intercooler, hot and cold-side intercooler pipes, and DuraCore boots
Reduces restriction by up to 64-percent over stock intercooler system
68mm-thick bar-and-plate core is 70-percent thicker than stock for maximum cooling
3.0-in mandrel-bent aluminum pipes eliminate restrictive bends and resonators
Larger intercooler inlet and outlet reduce restriction for improved flow
Pipes include 3 additional bungs that can be drilled and tapped for sensors or water/meth injection
Robust cast-aluminum end tanks resist cracking under high heat and pressure
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. Our engineering team has specifically identified the L5P's intercooler system as one of these areas. As a result, we'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. Our 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, our 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.
Our kit also includes hot-side and cold-side intercooler piping with DuraCoreâ„¢ boots and constant-tension T-bolt clamps. Our 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. Our 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 our Duramax performance parts, this L5P intercooler kit is protected by our signature Mishimoto Lifetime Warranty.
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TECH SPECS
More Information
Applications
GMC Sierra 2500HD V8 (6.6L Diesel) 2017-2019 GMC Sierra 3500HD V8 (6.6L Diesel) 2017-2019 Chevrolet Silverado 2500HD V8 (6.6L Diesel) 2017-2019 Chevrolet Silverado 3500HD V8 (6.6L Diesel) 2017-2019
Engine Codes
L5P
Chassis Codes
GMT K2
Note
Some trimming of the fan shroud may be required for installation.
Overall Length (in)
45.8
Overall Height (in)
23.85
Overall Width (in)
4.92
Core Type
Bar-and-Plate
Core Thickness (in)
2.67
Core Length (in)
20
Core Height (in)
11
Inlet (in)
3
Outlet (in)
3.25
Installation Notes
27 in-lbs (3NM) recommended for all T-bolt and constant-tension T-bolt clamps. These clamps have an operating range of 18-35 in-lbs (2-4NM). Do not exceed the maximum torque rating of 35 in-lbs (4NM).
(1) Mishimoto Intercooler (1) Cold-Side Intercooler Pipe Adapter (2) Cold-Side Intercooler Pipe (2) Hot-Side Intercooler Pipe (3) Cold-Side Intercooler Boot (3) Hot-Side Intercooler Boot (13) Constant-Tension T-Bolt Clamp (2) Intercooler Core Spacer (2) M8 X 1.25 X 20mm Bolt (2) M8 X 1.25 X 35mm Bolt (2) M8 X 1.25 X 60mm Bolt (6) M8 Washer Mishimoto Lifetime Warranty
Note:
Some trimming of the fan shroud may be required for installation.
Warranty
Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.
For our complete warranty policy, please click here.
