Key Features
Rated for temperatures up to 350°F, making them suitable for high-temperature applications.
Reinforced with 3 layers of polyester fabric, silicone provides a durable, pressure-resistant connection.
Suitable for use with coolant, water, air, turbocharger bypass valve ports, vacuum ports, throttle body water ports, heater cores, and more.
Color: Black.
Inner Diameter: 1/4 inch (6.5 mm). Total Length: 1-1/2 inches.
HPS reinforced silicone caps are not compatible with fuel or oil.
HPS Performance 1/4 inch high-temperature reinforced black silicone caps are specifically designed for installation in cooling systems. Unlike vacuum caps which have no reinforcement, HPS Performance silicone caps are reinforced with 3 layers of polyester webbing, allowing them to withstand the high temperatures and pressures of cooling systems for many years. They are suitable for use with coolant, water, air, turbocharger bypass valve ports, vacuum ports, throttle body water ports, heater cores, and more. Temperature range: -65°F to +350°F (177°C). Reinforcement: 3-layer polyester. Inner Diameter: 1/4 inch (6.5 mm). Color: Black. Wall thickness: 4mm. Depth: 1-3/16 inches. Total Length: 1-1/2 inches. UV and ozone resistant. Note: HPS reinforced silicone caps are not compatible with fuel, oil, or petroleum-based products.
Before Ordering
〇 Regarding Import Consumption Tax
At Shafto-ya 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 Fitment
Since our entire product database is based on North American vehicles (USDM), please confirm whether parts can be installed on Japanese vehicles (JDM) before placing your order. (Please feel free to contact us if you are unsure whether a listed product fits your vehicle; our support team will be happy to check for you.)
If you order without confirming fitment, 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 checkout. Shipping estimates are automatically calculated once you enter your delivery address on the checkout page. For large items such as body parts, there are rare cases where the automatically calculated shipping cost differs significantly from the actual cost. In such instances, we will contact you individually via email.
All products are generally shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes approximately 7 to 14 days, so please allow sufficient time when ordering. If you are in a hurry, please contact us in advance to check delivery times. Note that all products are transported via air freight. Shipping by sea is not available.
○ Regarding Compliance with Japanese Vehicle Inspection (Shaken)
Please note that all products we handle are essentially designed and manufactured outside of Japan. They are not compliant with the "Japanese Vehicle Inspection System," and we are unable to provide strength study documents or similar paperwork for these systems. Therefore, all parts are sold for "circuit, private property, or off-road use only," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents of your order as soon as it arrives. Since all products are shipped internationally from outside Japan, there may be instances of shipping damage to the packaging or the product itself. Please understand that we only provide returns, refunds, or replacement exchanges for items with shipping damage, defects, or incorrect items if notified within 7 days of receipt. Furthermore, for products sold through us, all warranty-related support will be handled "exclusively through us." Please note that we do not provide support through other companies or agencies located within Japan.