Copper Locking Exhaust Nuts Suit Nissan Patrol with TD42, TD42t, TD42Ti, ZD30, TB42, TB45 and TB48 Motors These are the nuts that are used to Bolt the Exhaust manifold to the head, and in a TD42 motor they are used to mount the Turbo to the Manifold. The studs and Nuts get affected by the amount of heat around the turbo manifolds - we recommend replacing them when you have the manifold off - as it's a very painful exercise to have the nuts come loose after a short period or have the studs snap as you are tensioning them up. Depending on the engine there is a Different Qty Required TD42 x 12 For Head, x4 for turbo to manifold TB42, TB45, TB48 x 12 For Head ZD30 x8 For head We also sell the Studs separately or in kit form for different models of vehicle- so search our other listings for these kits
