Key Features
Rated up to 350 degrees F for high-temperature applications.
Silicone is reinforced with 3 layers of polyester 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: Black.
Inside Diameter: 1-1/8 inch (28mm). Overall Length: 1-3/4 inch.
HPS reinforced silicone caps are NOT compatible with fuel, oil, or petroleum-based products.
HPS Performance 1-1/8 inch high-temperature reinforced black silicone caps are specifically designed for installation on cooling systems. The vacuum caps are reinforced with 3 layers of polyester webbing, allowing the HPS Performance silicone caps to withstand the high temperatures and pressures of cooling systems for many years. Suitable for air, turbocharger bypass valve ports, vacuum ports, throttle body water ports, heater cores, etc. Temperature range: -65 degrees F to +350 degrees F (177 degrees C). Reinforcement layers: 3-layer polyester. Inside diameter: 1-1/8 inch (28mm). Color: Black. Wall thickness: 4mm. Inside diameter: 1-3/16 inch. Overall length: 1-3/4 inch. UV and ozone resistant. Note: HPS reinforced silicone caps are not compatible with fuel, oil, or petroleum-based products.
Before You Order
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 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). Please confirm whether or not they can be installed on Japanese vehicles (JDM) before placing your order. (If you are unsure if the 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, 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 calculated automatically once you enter your delivery address on the checkout page. 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 US warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please allow plenty of time for your order. If you are in a hurry, please inquire about delivery times in advance. Note that all products are transported by air. They are not shipped by sea.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Basically, all products handled by our company are designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese Vehicle Inspection (Shaken) System," and we cannot provide strength evaluation documents for the Japanese vehicle inspection system. Therefore, all parts are sold for the purpose of "use on circuits, private land, or off-road," 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 may be shipping damage to the packaging or the product itself. Please understand that we will only provide returns, refunds, or replacement exchanges for items with shipping damage, defective products, or items that differ from your order if you contact us within 7 days of receipt. Please also 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 distributors located in Japan.