3.50" Blue Silicone Hose - 3-Ply Straight
Specifications Part numbers, fitment codes and shipping
- Brand
- K2 Industries
- Speedzone SKU
- K2-1507-UNV-006-TSARK
- Manufacturer part number
- K2-1507-UNV-006-TSARK
- UPC
- SH-35-BL
- Category
- Tool Sets and Repair Kits
- Shipping weight
- 2.0 lb
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.
Full details on shipping times, returns, warranty and cancellations are on our policy page.
Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.
Email Sales@Speedzoneweb.com
Call 407-846-8430
Text 407-749-6314
Answers to common questions are on our FAQ page.
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