3.00" to 4.00" Silicone Reducer Hose 3-Ply Red
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.
Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.
International Orders (Outside USA)
Please be aware your country may charge import fees of up to 20% in some cases. If delivery is refused, return shipping costs us 4x the original shipping fee, so we will charge a 50% restocking fee. By purchasing you agree to these terms.
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