SKU: VIB27051
UPC: 690092142087
MPN: 27051
The 4 Ply Silicone Sleeve 1.75in I.D. x 12in long from VIBRANT PERFORMANCE is an essential intake, intercooler, and radiator hose coupler built for serious engine builders and tuning enthusiasts. This straight silicone sleeve serves as a reliable junction between hard-line piping systems, accommodating high-temperature coolant and pressurized intake charge air in turbocharged and supercharged applications. Whether you're assembling a custom cooling circuit, upgrading OEM hose routing, or fabricating a complete intake manifold system, this coupler delivers the flexibility and durability required in modified engine bays.
Constructed from premium 4-ply reinforced silicone, the 1.75-inch inner diameter (I.D.) accommodates standard 1.75-inch hard pipes or aluminum tubing commonly found in performance cooling and intake systems. The 12-inch length provides adequate coupling distance while maintaining minimal vibration transfer, critical for isolating engine block thermal stress from adjacent components. Silicone construction offers superior heat resistance compared to rubber alternatives, withstanding sustained temperatures in forced-induction environments where traditional hoses degrade prematurely. The black finish resists UV degradation and maintains integrity under engine bay exposure, and the multi-ply reinforcement structure prevents collapse under boost pressure or negative pressure cycles inherent to turbo systems.
This coupler is ideal for builders transitioning from OEM rubber hoses to custom hard-pipe cooling systems, intercooler plumbing upgrades, and high-flow radiator recirculation setups on turbocharged trucks, sports cars, and race applications. Installation requires hose clamps (typically 1.75-inch or larger) at both ends to secure the sleeve over barbed or smooth piping. The 0.62-pound weight and compact 12-inch profile make positioning simple in tight engine bays, and the straight configuration eliminates the need for bends or adapters in direct line-to-line transitions. Confirm your hard-line outside diameter matches the 1.75-inch I.D. specification before purchase to ensure proper interference fit and secure clamping.
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