Halltech Systems Stinger Throttle Body Hump Hose - No Hole in PCV Hose - PCV Fitting - No Notch (2005 - 2007 Chevrolet Corvette C6 LS2 Venom / 2014 - 2019 C7 Stingray / 2017 - 2019 Grand Sport / 2015 - 2019 Z06) - H-4X3.75-RHH
The Halltech Systems H-4X3.75-RHH Flex-Lock throttle body hump hose provides a purpose-built 4-inch to 3.75-inch transition between a Halltech Stinger-series intake bridge and throttle body connection. Instead of relying on a basic silicone reducer, Halltech designed the Flex-Lock hose with a compliant hump section that accommodates engine movement and torque while internal grip ridges increase engagement at both ends of the connection.
This specific H-4X3.75-RHH configuration is supplied with no hole in the PCV hose, includes the PCV elbow fitting, and has no notch. The 3-inch-long hose is mandrel-formed from seven-layer, Nomex-reinforced silicone with a nominal .142-inch wall thickness. Two stainless steel hose clamps are also included for securing the hose to the intake and throttle body connections.
Specifications
- Manufacturer: Halltech Systems
- Part Number: H-4X3.75-RHH
- Product: Flex-Lock Reducing Throttle Body Hump Hose
- Intake-Side Inside Diameter: 4 inches
- Throttle Body-Side Inside Diameter: 3.75 inches
- Hose Length: 3 inches
- Nominal Hose Thickness: .142 inches
- Construction: Seven-layer Nomex-reinforced silicone
- Hose Design: Flexible hump section with internal grip ridges
- PCV Hole: No hole in PCV hose
- PCV Fitting: Included
- Notch: No notch
- Clamps: Two stainless steel hose clamps included
- Intake Connection: 4-inch Halltech Stinger-series intake bridge connection
- Throttle Body Connection: 3.75-inch inside diameter
Features
- Halltech Flex-Lock reducing throttle body hump hose
- Transitions from a 4-inch intake connection to a 3.75-inch throttle body connection
- No PCV hole in the hose with this configuration
- PCV elbow fitting included
- No notch in this configuration
- Seven-layer Nomex-reinforced silicone construction
- Compliant hump section accommodates engine movement and torque
- Internal grip ridges increase mechanical engagement at both hose connections
- 3-inch overall hose length
- Nominal .142-inch hose thickness
- Includes two stainless steel hose clamps
Halltech Flex-Lock Design
The connection between the intake and throttle body has to deal with engine movement every time the drivetrain loads and unloads. Halltech's Flex-Lock design addresses that movement with a compliant hump section that allows controlled flex rather than forcing the entire connection to remain rigid. Internal grip ridges at each end add mechanical engagement with the intake tube and throttle body, helping the hose stay securely positioned while still allowing the movement it was designed to handle.
Seven-Layer Nomex-Reinforced Construction
The H-4X3.75-RHH is mandrel-formed using seven-layer, Nomex-reinforced silicone construction. With a nominal .142-inch wall thickness, the hose combines reinforced construction with the flexibility of its hump section, giving the intake connection a more purpose-built solution than a basic straight reducer.
4-Inch to 3.75-Inch Reducing Design
The intake side has a 4-inch inside diameter for Halltech Stinger-series intake bridges, while the opposite end reduces to a 3.75-inch inside diameter for the throttle body connection. The transition is built directly into the 3-inch-long hump hose, eliminating the need to stack separate reducers and couplers between the intake and throttle body.
No PCV Hole with PCV Fitting Configuration
This version is specifically configured with no hole in the PCV hose while including the PCV elbow fitting. It is also supplied without a notch. These configuration details make it important to match the replacement hose to the specific Halltech intake setup being serviced rather than choosing an H-4X3.75-RHH based on hose diameter alone.
Fitment
- 2005 Chevrolet Corvette C6 LS2 Venom
- 2006 Chevrolet Corvette C6 LS2 Venom
- 2007 Chevrolet Corvette C6 LS2 Venom
- 2014 Chevrolet Corvette C7 Stingray
- 2015 Chevrolet Corvette C7 Stingray
- 2016 Chevrolet Corvette C7 Stingray
- 2017 Chevrolet Corvette C7 Stingray
- 2018 Chevrolet Corvette C7 Stingray
- 2019 Chevrolet Corvette C7 Stingray
- 2017 Chevrolet Corvette C7 Grand Sport
- 2018 Chevrolet Corvette C7 Grand Sport
- 2019 Chevrolet Corvette C7 Grand Sport
- 2015 Chevrolet Corvette C7 Z06
- 2016 Chevrolet Corvette C7 Z06
- 2017 Chevrolet Corvette C7 Z06
- 2018 Chevrolet Corvette C7 Z06
- 2019 Chevrolet Corvette C7 Z06
FAQs
What PCV configuration is included with this H-4X3.75-RHH?
This specific configuration has no hole in the PCV hose, includes the PCV elbow fitting, and has no notch. Be sure to match these options to the configuration required for your Halltech intake setup.
What size is the Halltech H-4X3.75-RHH?
The hose has a 4-inch inside diameter on the intake end and a 3.75-inch inside diameter on the throttle body end. It is 3 inches long with a nominal .142-inch wall thickness and includes two stainless steel hose clamps.
Get Your Halltech Flex-Lock Hump Hose from Beefcake Racing
Get the Halltech H-4X3.75-RHH Flex-Lock throttle body hump hose configuration you need from Beefcake Racing. For help with your Halltech intake setup or replacement components, contact us at sales@beefcakeracing.com or call 1-855-827-7223.
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