3.00" to 4.00" Silicone Reducer Hose 3-Ply Red
Specifications Part numbers, fitment codes and shipping
- Brand
- K2 Industries
- Speedzone SKU
- K2-1380-UNV-006-TSARK
- Manufacturer part number
- K2-1380-UNV-006-TSARK
- UPC
- SH-3-4-RD
- Category
- Tool Sets and Repair Kits
- Shipping weight
- 2.0 lb
3.00" to 4.00" Silicone Reducer Hose — 3-Ply Red
Stepped silicone hose for smooth diameter transitions in coolant, vacuum, and boost lines. 3-ply construction handles heat and pressure spikes without collapse. Red compound resists ozone and UV degradation in engine bays.
Key Features
- 3.00" to 4.00" step - Bridges mismatched hose or fitting sizes without adapters or coupling rings
- 3-ply silicone core - Resists high-temp coolant, vacuum draw, and light boost pressure without pinching
- Red compound - Withstands prolonged UV and ozone exposure; visibility in engine bay
Specs
- Material: Silicone
- Configuration: Reducer (stepped bore)
- Ply: 3-ply reinforced
- Color: Red
What's Included
- 1x Silicone Reducer Hose (3.00" to 4.00")
Frequently Asked Questions
Do I need clamps for this hose?
Yes. Use worm-gear or spring hose clamps sized for both the 3.00" and 4.00" ends — one at each diameter to seal properly. Clamps are sold separately.
Can I use this for boost lines on a turbo setup?
This hose handles light boost pressure, but confirm your system's PSI rating before install. For sustained high-boost applications, verify the 3-ply rating matches your turbo's spec sheet.
What's the length of this reducer?
Length not specified in the product data — measure your application before ordering to ensure it bridges your gap. Test-fit length against your intake tract or coolant routing before final clamping.
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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