Key Features
Rated for temperatures up to 350°F and suitable for high-temperature applications.
Silicone is reinforced with 3 layers of polyester woven fabric to provide 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: Red.
Inside Diameter: 5/8 inch (16mm). Total Length: 1-5/8 inches.
HPS reinforced silicone caps are not compatible.
HPS Performance 5/8 inch high-temperature reinforced red silicone caps are specifically designed for installation in cooling systems. Vacuum caps lack reinforcement and are intended for that purpose. HPS Performance silicone caps are reinforced with 3 layers of polyester webbing to withstand the high temperatures and pressures of cooling systems for years. Suitable for use with coolant, water, air, turbocharger bypass valve ports, vacuum ports, throttle body water ports, heater cores, etc. Temperature Range: -65°F to +350°F (177°C). Reinforcement Layer: 3-layer polyester. Inside Diameter: 5/8 inch (16mm). Color: Red. Wall Thickness: 4mm. Inside Depth: 1-3/16 inches. Total Length: 1-5/8 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 Shafutoya shopping site, we cover 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Compatibility Confirmation
Our entire product database is based on North American vehicles (USDM), so please verify whether parts are compatible with Japanese vehicles (JDM) before ordering. (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 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, make, and model on 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 with any questions before placing your order.
○ Regarding Shipping
Shipping fees are paid at the time of checkout. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, there are rare cases where the automatic shipping calculation differs significantly from the actual shipping cost. In such cases, we will contact you individually via email.
In principle, all products are shipped internationally from our US warehouse. Unlike domestic Japanese shipping, international shipping takes approximately 7 to 14 days, so please allow ample time when ordering. If you are in a hurry, please contact us to confirm delivery dates in advance. All items are transported by air freight. Shipping by sea is not available.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Please note that all products we handle are designed and manufactured outside of Japan. They are not adapted to the "Japanese Vehicle Inspection System (Shaken)," and we are unable to provide strength study documents or similar for this purpose. 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 replacement items for damaged, defective, or incorrect products if notified within 7 days of receipt. Please also note that for products sold through us, all warranty-related support will be handled "exclusively through our company." We cannot provide support through other companies or distributors located within Japan.