Upgrade or replace the factory intercooler in your 2017-2019 GM Silverado/Sierra 2500HD/3500HD 6.6 L5P Duramax. XDP is your one-stop diesel shop.

Shop a large selection of stock replacement & high-performance intercooler options for your 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6 L5P Duramax at XDP.

Keep your 2020+ Chevy or GMC L5P Duramax running cool with an upgraded intercooler, radiator, and more from Diesel Power Products!

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.

- 3 in. Hot Side Intercooler Pipe - 3.5 in. Cold Side Intercooler Pipe - CNC Machined Flange with Double O-Rings provides an improved sealing surface to eliminate boost leaks. - OEM Clip Ring...

The WCFab 3.5" High Flow Passenger Side Intercooler Pipe for 2020-2025 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck replaces the restricted OEM rubber/plastic design with a high flow, 14 ga. aluminum one piece 3.5" pipe.

The 3" High Flow Driver side Intercooler pipe for the 2020-2025 L5P Duramax. Replaces the OEM two piece design with a high flow one piece 3" pipe. It also includes upgraded silicone boots that withstand higher pressure and temperature than the factory boots to increase reliability and eliminate blown factory boots.

The CSF 6079 OEM+ Replacement Intercooler is a step up from the factory intercooler in your 2017-2019 GM 6.6L Diesel L5P. CSF is an ISO certified manufacturer that builds components for many OEM customers around the world.

Shop the best L5P Intercooler & Pipe upgrades to improve cooling & power. Direct fit extra large intercoolers. Buy Now Pay Later.

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.