3.00" to 4.00" Silicone Reducer Hose 90 Degree 3-Ply Black/Red
Specifications Part numbers, fitment codes and shipping
- Brand
- K2 Industries
- Speedzone SKU
- K2-1375-UNV-006-TSARK
- Manufacturer part number
- K2-1375-UNV-006-TSARK
- UPC
- SH-3-4-90-BK-RD
- Category
- Tool Sets and Repair Kits
- Shipping weight
- 2.0 lb
3.00" to 4.00" Silicone Reducer Hose 90 Degree 3-Ply Black/Red
Step down from 3-inch to 4-inch diameter with a 90-degree bend in one piece. Made from silicone with three reinforced plies, this hose handles coolant, boost, and intake routing in high-heat engine bays. Black exterior with red interior for easy identification under the hood.
Key Features
- Silicone construction - Handles sustained high temps without degradation or cracking
- Tapered reducer - One hose replaces step-down adapters and multiple clamps
- Color-coded interior - Red core makes routing and inspection straightforward
Specs
- Material: Silicone
- Configuration: 90-degree elbow with 3.00" to 4.00" taper
- Construction: 3-ply reinforced
- Color: Black exterior, red interior
What's Included
- 1x 3.00" to 4.00" Silicone Reducer Hose 90 Degree
Frequently Asked Questions
Do I need clamps for this hose, and what size?
You'll need hose clamps at both ends—one for the 3-inch side and one for the 4-inch side. Clamps are not included, so grab stainless steel units sized to match your barbed fittings or ports.
Can this hose handle boost and coolant both, or should I pick one?
Silicone handles both coolant and turbo boost without issue. Use it wherever you need that diameter step-down—intercooler piping, radiator hoses, intake manifold runners, all fair game.
What's the difference between this 3-ply and cheaper 1-ply silicone hoses?
Three plies mean more burst resistance and better shape retention under pressure and heat cycling. You're not buying a generic tube here—the reinforcement is real, and it shows in longevity.
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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