aFe Intercooler 17-19 GM Silverado/Sierra 6.6L Duramax
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This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
Regular price
$2,593.00
Regular price
-20%
$3,241.25
Sale price
$2,593.00
Heavy & Oversized Item
This item ships by freight. Shipping isn't calculated at checkout — we'll contact you with a freight quote after your order is placed.
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
The aFe POWER BladeRunner Intercooler (part number 46-20332-B) is engineered as a direct-fit upgrade for the 2017-2018 GM 6.6L Duramax.
This BladeRunner GT Series Intercooler with tubes represents the next generation of intercoolers by utilizing a 2-5/8in bar and plate core design and larger tubes to outflow stock by 10%. End Tanks: The unique BladeRunner end tanks are constructed out of 3/16in TIG-Welded aluminum plates. 2-5/8in Bar and Plate Core Design: The use of the bar and plate core design allows for greater airflow and increased heat dissipation over the stock tube and fin design. Billet Aluminum Inlet/Outlet: This BladeRunner Intercooler uses billet aluminum inlet and outlet for superior strength and durability. TIG-Welded: 100% TIG-Welded by certified craftsmen for race proven strength and durability. Flow and Performance: aFe Power's BladeRunner intercooler tubes are constructed from 3in hot side and 3-1/2in cold side mandrel-bent aluminum tubing for maximum flow. The high-temp wrinkle-black powder-coat insulates the tubes from engine heat and protects them from corrosion. Smooth transition bends decrease turbulence and minimize pressure loss, increasing horsepower, torque and lowering EGT's. Auxiliary Ports: This intercooler features four (4) 1/8 IN NPT ports on the back side of the intercooler for sensors or water methanol injection and two (2) 1/8 IN NPT ports on the bottom for draining condensation or oil build up. In addition, one (1) 1/8in NPT port is provided on each tube. Perfect Fit: Factory mounting locations, quality stainless steel spring-loaded T-Bolt clamps and heavy-duty 5-ply polyester reinforced silicone couplings ensure a secure install. The cold side tube includes a factory-style quick connect with an O-ring seal for a quick and simple install and retains the factory air temp sensor for a hassle-free installation. Custom Appearance: The intercooler tubes are badged with an aluminum laser-cut aFe Power logo.
Vehicle Fitment
- 2017 - 2019 Chevrolet Silverado 2500 HD 6.6L Duramax
- 2017 - 2019 Chevrolet Silverado 3500 HD 6.6L Duramax
- 2017 - 2019 GMC Sierra 2500 HD 6.6L Duramax
- 2017 - 2019 GMC Sierra 3500 HD 6.6L Duramax
Features & Benefits
- Cast and CNC-ported for improved flow over the factory unit
- Built to handle elevated boost pressure and heat cycling
- Direct bolt-on replacement using factory mounting points
- Bar-and-plate core lowers intake air temperature under boost
- Cast end tanks resist cracking under pressure cycling
Specifications
- Brand: aFe POWER
- Manufacturer Part Number: 46-20332-B
- SKU: afe46-20332-B
- Product Line: BladeRunner
- Part Type: Intercooler
- Engine Code: L5P
Always verify aFe POWER part number 46-20332-B against your vehicle's year, engine, and configuration before ordering.
Shipping Height: 14.0
Shipping Length: 51.0
Shipping Width: 24.0