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The Samco Sport 4mm Silicone Vent Line is a premium replacement for degrading factory rubber hoses on motorcycles, ATVs, and dirt bikes. Manufactured from high-grade silicone, this 10-foot (approx. 3 meters) continuous roll is designed to withstand extreme engine temperatures, UV exposure, and ozone without hardening, cracking, or dry-rotting over time like standard OEM rubber.
With a 4mm internal diameter, this hose provides a snug, universal fit over standard powersports carburetor nipples, radiator overflow barbs, and fuel tank vents. The highly flexible silicone construction makes it incredibly kink-resistant, allowing you to route breather tubes cleanly through tight engine bays and chassis gaps without restricting airflow or fluid drainage.
Premium Silicone Construction: Resists extreme heat and environmental degradation, outlasting traditional rubber lines.
10-Foot Length: Provides enough continuous tubing to completely re-route multiple carburetors or overflow lines on a single motorcycle.
Kink-Resistant: Highly flexible sidewalls prevent the hose from pinching closed when routed around tight frame corners.
Universal 4mm ID: The standard 4mm inside diameter is the most common size for metric powersports carburetor breather tubes and vacuum lines.
Color Fast: Silicone color is baked in, ensuring it will not fade or rub off during regular maintenance and washing.
1x 10-Foot Roll of Samco Sport 4mm Silicone Vent Line
(Note: Select your preferred hose color from the variant dropdown menu before checkout).
Platform Fitment: Universal application for any motorcycle, ATV, or dirt bike requiring a 4mm ID non-pressurized vent, overflow, or vacuum line.
Application Warning: This silicone hose is designed strictly for vapor venting, coolant overflow, and vacuum routing. It is NOT designed to be used as a primary pressurized fuel injection line or a submerged in-tank fuel line.

If you have any questions or need help finding what you need for your motorcycle or your next adventure please reach out:
EMAIL US AT tmbrmoto@tmbrmoto.com- OR CALL - 208-254-2044
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