Key Features
Rated for temperatures up to 350°F, making it suitable for high-temperature applications.
Silicone is reinforced with 3-ply polyester woven 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, etc.
Color: Black.
Inside Diameter: 25/32 inch (20mm). Overall Length: 1-5/8 inches.
HPS reinforced silicone caps are not compatible with fuel, oil, or petroleum-based products.
HPS Performance 25/32-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-ply polyester webbing, allowing them to withstand the high temperatures and pressures of cooling systems for years to come. They are 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 Layers: 3-ply polyester. Inside Diameter: 25/32 inch (20mm). Color: Black. Wall Thickness: 4mm. Inside Length: 1-3/16 inches. Overall 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 Shaftoya 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Confirmation of Compatibility
All product databases are based on North American vehicles (USDM), so please confirm whether the product can be installed on a Japanese vehicle (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 check 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 model year, manufacturer, and vehicle model in the tabs on our top page, this does not necessarily mean they will fit Japanese market vehicle models 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 costs are paid at the time of checkout. Shipping estimates are calculated automatically once you enter your shipping 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 cases, we will contact you individually via email.
All products are generally shipped internationally from our U.S. warehouse. Unlike domestic Japanese shipping, international shipping takes approximately 7 to 14 days, so please place your order with sufficient time. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all products are transported by air freight. They are not shipped by sea freight.
○ Regarding Japanese Vehicle Inspection Compatibility
Please note that all products we handle are designed and manufactured outside of Japan. They are not compliant with "Japanese vehicle inspection standards," and we are unable to provide strength calculation documents or similar paperwork for these inspections. Therefore, all parts are sold for the purpose of "circuit, private property, or off-road use," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents of your order immediately upon arrival. As all products are shipped internationally from outside Japan, there is a possibility of damage to the packaging or the product during transit. Please understand that we will only provide returns, refunds, or exchanges for damaged, defective, or incorrect items if notified within 7 days of receipt. Furthermore, for products sold through us, warranty support will be provided "exclusively through us." Please note that we do not handle support through other companies or distributors located within Japan.