PMAS Silicone Coupler 5 in Diameter 4 inch length

Silicone Coupler – 5″ Diameter, 4″ Length

The 5″ Silicone Coupler (4″ length) is a heavy-duty, high-strength solution for connecting 5″ diameter piping in performance intake, turbo, and intercooler systems. With its extended 4″ length, this coupler offers a larger contact area for a more secure grip and seal—ideal for high-boost or high-vibration environments.

Manufactured from premium multi-ply reinforced silicone, this coupler delivers exceptional durability, flexibility, and heat resistance. Whether you’re building a custom forced induction setup or replacing worn couplings, this component ensures lasting performance and reliability in demanding engine bays.

Product Highlights:

• Inside Diameter: 5″
• Overall Length: 4″
• Material: Multi-layer reinforced silicone
• Heat Resistant: Engineered for extreme under-hood temperatures
• Pressure Rated: Withstands vacuum and boost conditions with ease

Applications:

• Cold air intake and throttle body connections
• Turbo and supercharger charge piping
• Intercooler systems
• Custom fabrication and performance builds

Installation Tips:

For best results, use high-quality T-bolt clamps for a secure, leak-free fit. Ensure proper alignment and allow clearance from surrounding engine components.