Key Features
Rated up to a maximum temperature of 350°F, making it suitable for high-temperature applications.
Silicone is reinforced with 3 layers of polyester fabric, providing a highly 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.
Inside Diameter: 5/16 inch (8mm). Overall Length: 1-1/2 inches.
HPS reinforced silicone caps are not compatible with fuel or oil.
HPS Performance 5/16" high-temperature reinforced black silicone caps are specifically designed for installation in cooling systems. Vacuum caps lack reinforcement and are intended for different uses. HPS Performance silicone caps are reinforced with 3 layers of polyester webbing to withstand the high temperatures and pressures of cooling systems for many years. 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 Layer: 3-layer polyester. Inside Diameter: 5/16 inch (8mm). Color: Black. Wall Thickness: 4mm. Inside Depth: 1-3/16 inches. Overall 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 the Shafuto-ya 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Confirmation of Compatibility
All product databases are based on North American vehicles (USDM), so please confirm compatibility with Japanese vehicles (JDM) before placing your order. (If you are unsure whether a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to assist you.)
If an order is placed 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 on the tabs of our homepage, this does not guarantee that 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. Estimates for shipping costs are calculated automatically once you enter your shipping address on the checkout page. In rare cases, for large items such as body parts, there may 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.
Basically, 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 plenty of time for 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 freight; they are never shipped by sea freight.
○ Regarding Compliance with Japanese Vehicle Inspection (Shaken)
Please note that all products handled by our company are designed and manufactured outside of Japan. They are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength study documents or similar paperwork for these systems. Therefore, all parts are sold for the purpose of "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 delivery damage to the packing boxes or the products themselves. Please understand that we will only provide returns, refunds, or replacement products if you contact us within 7 days of receipt regarding items with delivery damage, defective products, or items that differ from your order. Please note that for products sold through our company, warranty support will be handled "exclusively through us." We do not provide support through other companies or agencies located within Japan.