Key Features
The ideal kit for bypassing the cabin heater on LS family engines (LS1, LT1, LQ9, etc.) with 5/8" and 3/4" heater supply and return ports.
The lowest profile heater loop on the market (3 inches tall).
Eliminates the concern of air pockets that can occur when capping off heater lines.
Withstands harsh high-temperature and high-pressure operating conditions. Max. rated temperature: 350°F (177°C).
Includes HPS 100% stainless steel industrial-grade embossed hose clamps that do not cut the silicone hose.
The HPS High-Temp 4-Ply Reinforced Silicone Bypass Loop Kit is designed to bypass the cabin heater on LS family engines (such as LS1, LT1, LQ9) with 5/8" and 3/4" heater supply and return ports. This easy-to-install loop eliminates the concern of air pockets that can occur when capping off heater lines. This product is the lowest-profile heater loop on the market, standing just 3 inches tall. Designed for use in extreme high-temperature applications and prolonged exposure to under-hood heat, this race-proven design can withstand the most rigorous operating conditions. Includes 100% stainless steel embossed hose clamps for easy installation. Max temperature rating: 350°F.
Before Ordering
〇 Regarding Import Consumption Tax
At Shafto-ya 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
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 be happy to investigate for you.)
If an order is placed without verifying 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 top page, it 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 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, the actual shipping cost may occasionally differ significantly from the amount automatically calculated. 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 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 the delivery date. Please note that all products are transported by air; they are never shipped by sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
All products we handle are designed and manufactured outside of Japan. Please understand that they are not adapted to the "Japanese Vehicle Inspection System," and we cannot provide strength inspection reports or similar documentation for this purpose. 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 inspect the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be cases of shipping damage to the packaging or the product itself. We will only provide returns, refunds, or replacements for products with shipping damage, defects, or incorrect items if notified within 7 days of receipt. Please understand that for products sold through us, warranty support will be provided "exclusively through us." Please note that we do not coordinate with other companies or agencies located within Japan for warranty support.