Mishimoto - misMMINT-DMAX-17SL - 6.6L L5P Duramax Performance Intercooler, Silver

Mishimoto has expanded our line of Duramax performance parts to include a performance intercooler for the 2017-2019 Chevrolet/GMC 6.6L Duramax L5P.High intake temperatures can reduce performance and potentially cause engine damage if left unchecked. Protect your investment by upgrading to the Mishimoto 6.6L Duramax L5P performance intercooler. This Duramax intercooler is precision engineered with durable cast-aluminum end tanks that resist cracking under high temperatures and boost pressures.The massive 68mm-thick bar-and-plate core is 70-percent thicker than stock and is designed for maximum cooling. In addition, the larger core reduces restriction by over 64-percent compared to the stock intercooler. We've also increased the size of the intercooler inlet and outlet by 6mm and 12mm, respectively, to improve flow even more.Included with this intercooler is an adapter cold-side pipe with DuraCore(TM) boot and constant-tension T-bolt clamps. Two additional bungs on the adapter pipe can be drilled and tapped for sensors or water/meth injection. Offered in Sleek Silver or Stealth Black powder-coated finish, the Mishimoto 6.6L Duramax intercooler, like all our Duramax performance parts, is protected by our signature Mishimoto Lifetime Warranty. High-efficiency intercooler engineered to reduce intake air temperatures for improved power and engine performance. Durable construction ensures optimal heat exchange, consistent boost, and a precise, reliable fit.

• 68mm-thick bar-and-plate core is 70-percent thicker than stock for maximum cooling
• Reduces restriction by over 64-percent over stock intercooler
• Larger inlet and outlet reduce restriction for improved flow

The Mishimoto 6.6L L5P Duramax performance intercooler is engineered for 2017–2019 Chevrolet and GMC applications to reduce intake air temperatures, improve airflow, and support consistent engine performance. Its durable cast-aluminum end tanks resist cracking under high temperatures and boost pressures, while the bar-and-plate core is designed for efficient heat exchange.

Key Features & Performance Benefits

• High-efficiency cooling: The 68mm-thick bar-and-plate core is 70 percent thicker than stock for increased cooling capacity.
• Reduced restriction: The larger core reduces restriction by over 64 percent compared with the stock intercooler.
• Improved airflow: Enlarged inlet and outlet openings help promote improved charge-air flow.
• Durable construction: Cast-aluminum end tanks and a powder-coated finish support reliable performance under demanding conditions.

Product Specifications & Technical Data

• Brand: Mishimoto
• Part number: misMMINT-DMAX-17SL
• Application: 6.6L Duramax L5P
• Product type: Performance intercooler
• Core construction: Bar-and-plate
• Core thickness: 68mm
• Finish: Sleek Silver powder-coated finish
• Warranty: Mishimoto Lifetime Warranty

What's Included

The box includes the Mishimoto performance intercooler, an adapter cold-side pipe with DuraCore boot, and constant-tension T-bolt clamps. The adapter pipe also includes two additional bungs that can be drilled and tapped for sensors or water/methanol injection.

Fitment

Fits select 2017–2019 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD vehicles equipped with the 6.6L L5P Duramax engine. Verify vehicle application before ordering.

Fitments:
2017 Chevrolet Silverado 2500 HD High Country
2017 Chevrolet Silverado 2500 HD LT
2017 Chevrolet Silverado 2500 HD LTZ
2017 Chevrolet Silverado 2500 HD WT
2017 Chevrolet Silverado 3500 HD High Country
2017 Chevrolet Silverado 3500 HD LT
2017 Chevrolet Silverado 3500 HD LTZ
2017 Chevrolet Silverado 3500 HD WT
2017 GMC Sierra 2500 HD Base
2017 GMC Sierra 2500 HD Denali
2017 GMC Sierra 2500 HD SLE
2017 GMC Sierra 2500 HD SLT
2017 GMC Sierra 3500 HD Base
2017 GMC Sierra 3500 HD Denali
2017 GMC Sierra 3500 HD SLE
2017 GMC Sierra 3500 HD SLT
2018 Chevrolet Silverado 2500 HD High Country
2018 Chevrolet Silverado 2500 HD LT
2018 Chevrolet Silverado 2500 HD LTZ
2018 Chevrolet Silverado 2500 HD WT
2018 Chevrolet Silverado 3500 HD High Country
2018 Chevrolet Silverado 3500 HD LT
2018 Chevrolet Silverado 3500 HD LTZ
2018 Chevrolet Silverado 3500 HD WT
2018 GMC Sierra 2500 HD Base
2018 GMC Sierra 2500 HD Denali
2018 GMC Sierra 2500 HD SLE
2018 GMC Sierra 2500 HD SLT
2018 GMC Sierra 3500 HD Base
2018 GMC Sierra 3500 HD Denali
2018 GMC Sierra 3500 HD SLE
2018 GMC Sierra 3500 HD SLT
2019 Chevrolet Silverado 2500 HD High Country
2019 Chevrolet Silverado 2500 HD LT
2019 Chevrolet Silverado 2500 HD LTZ
2019 Chevrolet Silverado 2500 HD WT
2019 Chevrolet Silverado 3500 HD High Country
2019 Chevrolet Silverado 3500 HD LT
2019 Chevrolet Silverado 3500 HD LTZ
2019 Chevrolet Silverado 3500 HD WT
2019 GMC Sierra 2500 HD Base
2019 GMC Sierra 2500 HD Denali
2019 GMC Sierra 2500 HD SLE
2019 GMC Sierra 2500 HD SLT
2019 GMC Sierra 3500 HD Base
2019 GMC Sierra 3500 HD Denali
2019 GMC Sierra 3500 HD SLE
2019 GMC Sierra 3500 HD SLT

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1