Key Features
Rated for temperatures up to 350 degrees Fahrenheit, making it 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: Blue.
Inside Diameter: 3/8 inch (9.5 mm). Total Length: 1-1/2 inches.
HPS reinforced silicone caps are not compatible with fuel or oil.
HPS Performance 3/8" high-temperature reinforced blue silicone caps are specifically designed for installation in cooling systems. Unlike vacuum caps that lack reinforcement, HPS Performance silicone caps are reinforced with 3 layers of polyester webbing, allowing them to withstand high temperatures and pressures in 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 Layers: 3-layer polyester. Inside Diameter: 3/8 inch (9.5mm). Color: Blue. Wall Thickness: 4mm. Inside 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 Shaftoya Shopping Site, we cover the import consumption tax incurred upon importation, so there are no additional charges beyond the total amount paid at checkout.
〇Checking Compatibility
Since our entire product database is based on North American vehicles (USDM), please confirm compatibility 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 investigate for you.)
If you 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 the tabs of our top page, it does not necessarily mean they will fit Japanese model vehicles without modification.
All product information is 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 on the checkout page once you enter your shipping address. For large items such as body parts, the automatically calculated shipping cost may occasionally differ significantly from the actual cost. In such cases, we will contact you individually by email.
Basically, all products are shipped internationally from our U.S. warehouse. Unlike domestic shipping within Japan, international shipping takes about 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 delivery times. Note that all products are transported by air; they are never shipped by sea.
○Regarding Japanese Vehicle Inspection (Shaken) Compatibility
All products we handle are fundamentally designed and manufactured outside of Japan. Please understand that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength evaluation documents or similar paperwork for this purpose. 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 immediately upon arrival. As all products are shipped internationally from outside Japan, there is a possibility of shipping damage to packaging boxes or the products themselves. Please understand that we will only provide returns, refunds, or replacements for products with shipping damage, defective goods, 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 coordinate with other domestic companies or agencies within Japan.