Key Features
4-ply reinforced high-temperature silicone.
Meets and exceeds SAEJ20 industry standards, making it ideal for heavy-duty pressure connections and providing excellent resistance for high-temperature applications.
Perfect for marine and industrial use, custom turbo or intercooler piping fabrication, or DIY intake or radiator cooling systems.
UV and Ozone resistant.
Silicone hose is not compatible with fuel or oil.
HPS 4 inch - 4-1/2 inch (102mm - 114mm), 3 inch long high-temperature 4-ply reinforced blue silicone reducer coupler hose meets SAEJ20 industry standards, making it ideal for heavy-duty pressure connections and providing excellent resistance for high-temperature applications. Meeting the high-performance requirements specified in various industry standards, it is perfect for marine and industrial use, custom turbo or intercooler piping fabrication, or DIY intake or radiator cooling systems. Technical Specifications: Product Type: Silicone Reducer Coupler Hose. Temperature Range: -65 degrees Fahrenheit to +350 degrees Fahrenheit (177 degrees Celsius). Reinforcement: 4-ply. Hose Inside Diameter: 4 inches - 4.5 inches (102mm - 114mm). Hose Outside Diameter: 4.41 inches - 4.88 inches (112mm - 124mm). Hose Length: 3 inches. Wall Thickness: 4.5 mm (+/- 0.5 mm). Color: Blue. UV and Ozone resistant. Note: Silicone hose is not compatible with fuel or oil.
Before You Order
〇 Regarding Import Consumption Tax
At the Shaftoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there are no additional charges beyond the total amount paid at checkout.
〇Compatibility Check
Our entire product database is based on North American (USDM) vehicles; please check compatibility with Japanese (JDM) vehicles before ordering. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to look into it for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, manufacturer, and vehicle model using the tabs on our top page, this does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are calculated automatically once you enter your shipping address on the checkout page. For large items such as body parts, the actual shipping cost may occasionally differ significantly from the amount calculated automatically. In such cases, we will contact you individually via email.
Essentially, all products are shipped internationally from our U.S. warehouse. Unlike domestic shipping within Japan, international delivery takes approximately 7 to 14 days, so please allow sufficient time when placing your order. If you are in a hurry, please contact us in advance to confirm delivery times. Please note that all products are transported by air. They are not shipped by sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Basically, all products we handle are designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength evaluation documents or similar paperwork for the Japanese inspection system. Therefore, all parts are sold for use on "circuits, private land, or off-road," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packaging or the product itself. Please understand that we will only handle returns, refunds, or replacement exchanges for items with shipping damage, defective products, or incorrect items if notified within 7 days of receipt. Furthermore, for products sold through our company, all warranty-related support will be handled "exclusively through us." Please note that we do not provide support through other companies or distributors located within Japan.
