Granatelli HD 4.00 Inch Clamshell 318540CS
4.0" (102mm) Clamshell Spare, Each- Aluminum Black
Granatelli Motor Sports Dual Seal HD 4.0 Inch Tubing Coupler Clamp
SKU: 318540CS
Heavy-Duty Quick-Release Clamshell Clamp for Extreme Turbo and High-Boost Applications
The Granatelli Motor Sports Dual Seal HD 4.0 Inch Tubing Coupler Clamp is built for extreme-performance applications where maximum airflow, boost retention, and reliability are non-negotiable. Precision-machined from T-6061 aluminum, this clamp is engineered to handle the demands of high-horsepower turbocharged and forced-induction systems while maintaining a clean, professional appearance.
Featuring Granatelli’s patented pin-and-ball quick-release clamping mechanism, this clamshell-style clamp provides a secure mechanical lock that resists vibration, heat cycling, and extreme boost pressure. Designed for 4.0-inch (102mm) tubing couplers, it delivers consistent, leak-free sealing in large-diameter intake and charge pipe systems.
Product Specifications
- Tubing Coupler Type: Straight
- Material: T-6061 Aluminum
- Finish: Black
- Inlet Diameter: 4.00 in. (102.00 mm)
- Outlet Diameter: 4.00 in. (102.00 mm)
- Quantity: Sold individually
Performance Features
- Dual-seal HD design for maximum boost retention and leak prevention
- Pin-and-ball quick-release system for fast installation and servicing
- Vibration-resistant under extreme boost and engine movement
- Maintains sealing integrity under high pressure and elevated temperatures
- Ideal for repeated disassembly without clamp fatigue or loss of clamping force
Included Components
- One heavy-duty outer clamp assembly
- One ball/pin safety retention pin
Designed for professional fabricators, racers, and serious performance enthusiasts, the Granatelli Motor Sports Dual Seal HD 4.0 Inch Clamshell Clamp is the ideal solution for large-frame turbo systems, high-boost charge piping, intercooler connections, and extreme horsepower builds. When airflow, strength, and serviceability matter most, Granatelli Motor Sports delivers proven performance.
- 318540CS
- 318540CS
- 802735041002
- Granatelli Motor Sports
- New
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Granatelli HD 4.00 Inch Clamshell 318540CS
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Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
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Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
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