King Shocks 3.75 ID Coil Spring 10.5 x 400lb

King coil springs are manufactured in the USA to our specifications using the highest quality high-tensile chrome-silicon wire. Our springs are not repurposed automotive springs; they are specifically wound for off-road use. Spring rates, wire diameters, and coil lengths have been developed through extensive field testing across all types of terrain. Our race-winning designs have proven their performance in the harshest environments from Baja to Dakar. Every spring is manufactured with closed, ground ends for a flat seat and precise rebound. We offer the widest selection to suit your application. While we sell thousands of springs per month with almost no returns, we provide a lifetime warranty to the original purchaser against sagging or breakage, giving you peace of mind in the unlikely event of an issue. Should a spring fail, we will gladly replace it at no charge. Experience the unique King ride quality, supported by customer service that is as exceptional as the quality and performance of our products.

Before Ordering

〇 Regarding Import Consumption Tax
At Shaftoya Shopping Site, we pay the import consumption tax incurred upon importation on your behalf, so there will be no additional charges beyond the total amount paid at checkout.

〇Confirmation of Compatibility
Our entire product database is based on North American market vehicles (USDM). Please confirm whether the product can be installed on a Japanese market vehicle (JDM) before placing your order. (If you are unsure if 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, manufacturer, and vehicle model via the tabs on our homepage, this does not necessarily mean they will fit Japanese market models 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 shipping address on the checkout page. For large items such as body parts, the actual shipping cost may occasionally differ significantly from the amount calculated automatically. In such cases, we will contact you individually via 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 place your order with sufficient time. If you are in a hurry, please inquire about delivery times in advance. Note that all products are transported by air. We do not use sea freight.

○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Essentially, all products we handle are 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 the Japanese 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 inspect the contents immediately upon arrival. As all products are shipped internationally from outside Japan, there is a possibility of shipping damage to the packaging or the product itself. Please understand that for products with shipping damage, defective products, or items that differ from your order, we will only handle returns, refunds, or exchanges if contacted 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 provide support through other companies or distributors located within Japan.