1PCS Fuel Injector 4010029 4001830 4087886 4928345 – Compatible with Cummins QSK23 QSK45 QSK60 Engines | Heavy-Duty Diesel Injector Replacement

Tianguan provides a 1-year limited warranty for new starters/alternators only. If the problem is caused by Tianguan, the seller pays all shipping costs. The warranty does not apply to improper installation, water/fire damage, modifications, or any natural disasters.

If the return is caused by the consumer (non-defective return), consumer should be responsible for the shipping fee. The specific fee should be based on the express company you choose. If the item problem is caused by Tianguan, contact us before return item, we will provide refund/exchange/or other way to solve it.No refund/exchange to provide if no notification before sending back items beforehand. If customer received damaged product, customer need to send email to linda@tgautoparts.com in 72 hours of item delivered. Customer need to send pictures/videos(use to proof related issues) in emails, Tianguan will recognize the return reason/confirm the issue. Our team will feedback to customer asap. ◉ Damaged Item Damaged merchandise includes items that are damaged during shipping. If you receive the package and then find shipping damage, please save all packaging material and paperwork and contact us immediately by mail linda@tgautoparts.come or other way you have. ◉ Technical Support We highly recommend professional installation for all of our products. We are not accepting any exchange or returns due to improper installation.

Orders usually been shipped out within 1-2business days after payment has been cleared, Delivery in 5-7 working days .Orders made on Saturdays, Sundays, and holidays will be processed on the next business day. If there is any problem on your order, please feel free to contact our team by email(linda@tgautoparts.com) Please ensure that the shipping address you provide is accurate. We are not responsible for undeliverable addresses. Shipping address of P.O. BOX, APO, FPO or State of HI, AK, VI, PR. will not accepted.