3.00" to 4.00" Blue Silicone Reducer Hose - 3-Ply Construction
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
3.00" to 4.00" Blue Silicone Reducer Hose — 3-Ply Construction
Step down from 3-inch to 4-inch diameter with this reinforced silicone reducer hose. Built from 3-ply silicone construction for durability under boost and thermal cycles. The blue finish resists UV degradation and blends seamlessly into engine bays running blue-themed coolant or custom piping.
Key Features
- 3-Ply Silicone Construction - Handles repeated pressure cycles and temperature swings without cracking or separating.
- Blue Colorway - Matches coolant systems and custom engine bay builds; resists fading in direct sunlight.
- Stepped Diameter - Transitions cleanly from 3-inch to 4-inch, reducing the need for stepped fittings in tight spaces.
Specs
- Material: Silicone
- Configuration: Reducer hose, 3-inch to 4-inch diameter
- Construction: 3-ply reinforced
- Color: Blue
Whats Included
- 1x 3.00" to 4.00" blue silicone reducer hose
Frequently Asked Questions
Do I need clamps to install this hose?
Yes. You'll need hose clamps sized for both the 3-inch and 4-inch ends. Standard worm-gear clamps work fine—just confirm your clamp size before ordering.
Can I use this hose for coolant or only boost applications?
This hose is rated for both. The 3-ply silicone handles coolant temperatures and pressure equally well, so it works in radiator loops, intercooler setups, or custom plumbing.
Will this hose fit my existing fittings without adapters?
Depends on your current setup. The 3-inch end will slide onto any 3-inch barb or fitting; the 4-inch end does the same. If your fittings are a different size or style, you may need adapters—measure your barb diameter before committing.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.