K2 Industries
3.50" Blue Silicone Hose - 3-Ply Straight
3.50" Blue Silicone Hose - 3-Ply Straight
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3.50" Blue Silicone Hose — 3-Ply Straight
High-temp silicone radiator hose built for coolant systems that run hard. Three-ply construction handles pressure spikes and thermal cycling without collapsing. The 3.50" diameter fits common cooling applications where stock rubber fails.
Key Features
- 3-Ply reinforced walls — Resists collapse under vacuum and handles thermal stress without degrading.
- Blue silicone material — Distinguishes your cooling system and resists ozone cracking better than standard rubber.
- Straight connection design — Direct flow path with no bends; pair with elbows or adapters as needed for your layout.
Specs
- Material: Silicone
- Configuration: Straight
- Diameter: 3.50"
- Ply Count: 3-Ply
- Condition: New
What's Included
- 1x 3.50" Blue Silicone Hose (Straight)
Frequently Asked Questions
Do I need hose clamps to install this?
Yes. Clamps are not included — grab stainless steel hose clamps sized for 3.50" diameter to secure each end. Worm-gear clamps work fine for street cars; T-bolt clamps give you more clamping force if you're running high pressure.
Can I use this straight hose on a tight corner in my engine bay?
Not without bending it. This hose is designed as a straight section — if you need to route around tight angles, pair this with 90-degree or 45-degree silicone elbows sized to match the 3.50" bore.
Will this hose work as a replacement for my stock radiator hose?
If your factory hose is 3.50" diameter, this silicone version will fit the same connection points — but verify your hose routing and connection locations before ordering. Silicone handles higher temperatures than rubber, so it's a solid swap for track use or engine builds.
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