Fit For Cummins ISLE 6L ISC C8.3 QSC 4089758 Upper Cylinder Head Gaskets Set Description Package Included 1Head Gaskets Set Shipping * Please make sure the correct Ship-To address is entered before checking out. Once the payment is completed, you may not be able to change the shipping address. We shall not be held responsible for any wrong or undeliverable addresses. * We usually ship within 3-7 business days of receiving cleared payment. * In case of ship problems, we will contact you as soon as possible. Returns * We put buyer's satisfaction at top priority. If you're not pleased with your purchases, we'll be happy to make an exchange or refund the item total price less Shipping and Handling (S H) charges within 30 days of your purchases. * For any Exchange, Refund or Return, the item must be in its original condition, including the box, packaging, and all the accessories or gifts. * We'll provide prepaid return shipping label if the return is a result of our error. Postage reimbursement is offered only on standard mails, and it needs to be approved by our staff prior to returning. Contact Us * Customer satisfaction is very important to us and our feedback rating reflects this satisfaction. If you have any question or concern, please contact us via message. * We respond to all messages as quickly as possible. Though your question will usually be answered very soon, please allow us up to one business day before you start thinking your message is neglected or the reply is avoided, because there would be time difference, non-working hours or public holidays that have prevented us from making an instant response.