Toyota 1HD-T / 1HD-FTE Exhaust Manifold Stud Nut Kit – Land Cruiser HDJ 78 79 80 100

Built for the demands of heavy-duty Toyota 1HD diesel engines, this exhaust manifold stud nut kit is designed to deliver a rock-solid seal between the manifold and cylinder head. Ideal for replacing fatigued or missing hardware, the high-tensile studs feature a 5mm internal hex for easy, damage-free installation. Paired with copper-plated top-lock flange nuts, this hardware set ensures lasting clamping force and resistance to loosening from thermal expansion or vibration. Perfect for overlanding rigs, workhorses, or performance-tuned Land Cruisers. 🔧 Key Features‣ Specifically designed for Toyota 1HD-T / 1HD-FT / 1HD-FTE diesel engines‣ Fits HDJ78, HDJ79, HDJ80, HDJ100 exhaust manifolds‣ Inner hex studs for precise, tool-friendly install‣ Top-lock flange nuts resist thermal cycling & vibration‣ Restore factory sealing integrity with upgraded hardware