Intercooler – 2011–2016 LML Chevrolet/GMC Sierra 2500HD 3500HD 6.6L Duramax



Orders cannot be canceled after they’ve been placed. We use multiple third party fulfillment companies, distribution centers & manufactures. The logistics of coordinating a cancellation are not feasible.

Returns are accepted for most items. Returns must be made within 30 days of receiving item. Item/s must be brand new & resell-able condition. Customer is responsible for return shipping costs. Original shipping charges are non refundable.

Electronics that require custom tuning or are VIN specific cannot be returned and are non refundable. This includes EZ Lynk, SCT, H&S Performance Mini Maxx Tuner & EFI Live.

Contact us for return instructions. Do NOT send to return address on original package.To check more on return policy.

Availability – If you see “#” pieces in stock above the add to cart button it will ship within 1 business day. If there’s no quantity shown; the part is either built to order, ships directly from the manufacture or is temporarily out of stock. In that case, could take up to 20 business days to ship.

Intercooler – 2011–2016 LML Chevrolet/GMC Sierra 2500HD 3500HD 6.6L Duramax



Intercooler - 2011–2016 LML Chevrolet/GMC 6.6L Duramax | SPELAB-25

Intercooler – 2011 2012 2013 2014 2015 2015.5 2016 LML Chevrolet/GMC 6.6L Duramax


  • Color: Black
  • Type: Intercooler for 2011 2012 2013 2014 2015 2015.5 2016 LML 6.6 Duramax Diesel Chevrolet Silverado/GMC Sierra 2500HD 3500HD

Fitment Guide:

  • 2011-2016 Chevrolet Silverado 2500HD 3500HD w/ LML 6.6L Duramax Diesel
  • 2011-2016 GMC Sierra 2500HD 3500HD w/ LML 6.6L Duramax Diesel


  • Tank Wall Thickness: 4mm
  • Outlet: 3″
  • Core Length: 36.14″
  • Core Height: 23.01″
  • Inlet: 3″
  • Core Size: 36.14″ x 23.01″
  • Overall Width: 5.3″
  • Overall Height: 26.2″
  • Overall Length: 45.7″
  • Construction: Bar-and-Plate/Solid Core




  • Bar-and-plate construction with cast aluminum end tanks
  • End tanks strategically designed for optimal airflow
  • Mandrel-bent polished aluminum cold-side intercooler pipe
  • Reduces turbo stress and extends life
  • Reduce pressure drop and increase cooling and power
  • DuraCore technology provides superior resistance to heat, pressure, fuel, and oil
  • Includes high-quality constant-tension T-bolt clamps
  • Sleek Silver or Stealth Black intercooler options available
  • Provides improved airflow and lowers intake air temperatures

Intercooler - 2011–2016 LML Chevrolet/GMC 6.6L Duramax | SPELAB-584

The performance intercooler for the 2011-2016 LML 6.6L Duramax. A high-powered 6.6L engine needs an intercooler that can effectively reduce intake temperatures and withstand high pressures. The  6.6L Duramax intercooler is manufactured with heavy-duty cast aluminum end tanks and a stout bar-and-plate core, designed to decrease intake temperatures, improve airflow, and reduce pressure drop. By decreasing pressure drop this intercooler will extend the life of your turbocharger and improve the efficiency of your 6.6L Duramax.The  6.6L Duramax intercooler features a core with greater volume than the factory cooler; this results in numerous performance benefits including increased pressure tolerance and lower EGTs. We engineered this intercooler to provide substantial benefits on a stock truck, and also to support the power and boost levels of a highly modified truck. Offered in black, the  6.6L Duramax intercooler, like all of our Duramax performance parts, comes protected by our signature Lifetime Warranty.