Key Features
Ideal for replacing or performance-upgrading OEM rubber radiator hoses that can eventually weaken over time.
Withstands harsh high-temperature and high-pressure operating conditions while maintaining peak efficiency during competition or daily driving. Max. temperature rating: 350F (177C).
Includes HPS 100% stainless steel industrial-grade embossed hose clamps that do not cut the hose.
Race-proven design ensures longer-lasting quality compared to stock rubber hoses.
Replacement for OEM PNs: 21501-4GB0A, 21503-4GB0A.
HPS high-temperature 3-ply reinforced silicone radiator coolant hose kits are designed to replace stock OEM rubber upper and lower radiator hoses that can eventually weaken over time, leading to premature failure. With premium quality silicone and a race-inspired design, this silicone hose kit can withstand the harsh high-temperature and high-pressure operating conditions of the engine while maintaining peak efficiency during both competition and daily driving. HPS silicone hose kits have the correct bends and sizing for a perfect fit and replacement for OEM rubber coolant hoses. Compared to universal hoses available at local auto parts stores, HPS silicone hose kits are much easier to handle. Maximum temperature rating: 350 degrees Fahrenheit. Includes 100% stainless steel clamps for easy installation.
Before Ordering
〇 Regarding Import Consumption Tax
At Shaftoya Shopping Site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.
〇 Confirmation of Compatibility
Our product database is based primarily on North American vehicles (USDM). Please confirm whether the product can be installed on a Japanese domestic vehicle (JDM) before placing your order. (If you are unsure whether the listed product is compatible with your vehicle, please feel free to contact us. Our support team will 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 products are sorted by selecting the year, manufacturer, and vehicle model via 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 payment. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual shipping cost. In such cases, we will contact you individually via email.
In principle, all products are shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international shipping takes approximately 7 to 14 days, so please allow yourself enough time when ordering. If you are in a hurry, please contact us in advance to confirm the delivery date. Note that all products are transported by air. They are not shipped by sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Please note that all products handled by our company are designed and manufactured outside of Japan. They are not adapted to the "Japanese vehicle inspection system," and we are unable to provide strength study documents or similar items for such purposes. Therefore, all parts are sold for use on "circuits, private property, or off-road," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents immediately upon arrival. As 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 provide returns, refunds, or replacements for products with shipping damage, defective products, or items different from what was ordered if you contact us within 7 days of receipt. Furthermore, regarding products sold through our company, all warranty-related support will be handled "exclusively through our company." Please note that we do not handle matters through other companies or distributors located within Japan.