Due to a lot of customer demand we proudly introduced the TDS-3804700. This STC Tappet repair kit is common for all the NT & K STC injectors which use the tappet in the injector. And this kit reduces the cost of injector tappet replacement by half for the customer. The customer earlier had to replace the complete tappet assembly 3075381 or the 3075383 . This kit only offered by us in the market reduces the repair cost to almost half rather then to change the complete tappet.