4.00" Black Silicone Hose - 3-Ply Straight
K2 Industries
4.00" Black Silicone Hose - 3-Ply Straight
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
Eligible returns within 30 days of receipt. Items must be unused, with tags and original packaging. Contact Lee Mods before sending anything back. Lee Mods pays return shipping for eligible U.S. returns; no restocking fee. See Returns & Exchanges for full conditions.
4.00" Black Silicone Hose — 3-Ply Straight
High-temp silicone radiator hose with three reinforced plies for boost systems, coolant lines, and intake charge piping. Black silicone construction handles extreme temperatures and aggressive coolant chemistry. 4-inch diameter fits most universal cooling and forced-induction applications.
Key Features
- Three-ply construction - Resists collapse and ballooning under boost or pressure cycling.
- Straight configuration - No bends; route it your way with proper clamps and supports.
- 4.00" diameter - Works with standard hose clamps and most universal mounting points.
Specs
- Material: Silicone
- Configuration: Straight
- Diameter: 4.00 inch
- Ply Count: 3-ply
- Color: Black
Whats Included
- 4.00" Black Silicone Hose — Straight section
Frequently Asked Questions
Do I need hose clamps to install this?
Yes. This hose requires clamps at both ends to secure it to your fittings or barbed connectors. Standard worm-gear or t-bolt clamps work — size depends on your fitting diameter, not the hose.
Can I use this for coolant and boost lines on the same car?
Absolutely. Three-ply silicone handles both coolant and pressurized intake charge without degradation. Make sure any fittings you use are rated for your intended application temperature.
What if I need a different length or a bend?
This ships as a straight section. You can cut it to length with a sharp knife or hose cutter, but bending requires a mandrel or spring — doing it by hand often kinks the hose and compromises flow. Plan your routing before install.
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-1523-UNV-006-TSARK |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information