One of the best ways to prevent broken bolts is to replace hardware before it breaks during removal. This bolt holds the throttle body to the upper intake plenum. Includes a pre-installed lock washer. Sold individually; 8 required per car.
Keep in mind that, although the throttle body bolts thread into a metal fitting on the intake plenum, the plenum itself is still plastic and fairly easy to damage when bolts are overtorqued. Throttle body bolts have a very low torque spec and specific order for both installation and removal. We recommend installing the bolts by hand first (but only until resistance is felt), then follow the factory torque spec and order using an inch-pound specific torque wrench. If you aren't sure of the installation order, or don't have access to a Factory Service Manual, click here for a diagram showing the proper order. Torque Spec: 75 in-lb.
Nissan 350Z, 370Z
Nissan Z33, Z34
2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2018