GMC Sierra Intercooler Coupling Kit - aFe - BladeRunner - 17-19. This BladeRunner intercooler coupling kit is designed for 2017–2019 GM diesel trucks (V8 6.6L L5P) to connect factory intercooler outlets to aFe intercooler piping. It provides reinforced silicone couplings and spring-loaded clamps for a secure, vibration-tolerant connection.

The kit includes purpose-built components to handle thermal expansion and engine movement while maintaining a reliable seal between the intercooler and aFe tubes. Its 5-ply polyester-reinforced silicone couplings resist deformation and the stainless steel spring-loaded T-bolt clamps maintain consistent clamp force through temperature changes and vibration. This coupling set is intended for direct use with factory intercooler outlets and aFe intercooler pipes on compatible GM diesel trucks and focuses on durability and fitment integrity rather than altering system performance.

Features

• (3) 3" and (1) 2-3/4" 5-ply polyester-reinforced premium silicone couplings
• (8) stainless steel spring-loaded T-bolt clamps for consistent clamping force
• Designed for 2017-2019 GM Diesel Trucks, V8 6.6L (L5P)
• Allows expansion, movement and vibration between intercooler and aFe pipes while maintaining secure fitment
• Focused on long-lasting durability and correct fitment with factory intercooler and aFe tubing

If you have any questions or want help confirming fitment, call us directly — we’re happy to assist. We have two installation and customization locations: Austin, Texas and the Los Angeles, California area where we perform on-premises installation. Call 512-982-9393 (TX) or 562-981-6800 (CA) for details or to schedule service. If you’re considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov