Engine rebuild for JAC JS4 with a 6-month warranty. 6-month warranty on the rebuild. JAC JS4 Specialists. We recondition the engine from the inside after inspecting every part and identifying the cause of the fault, ensuring the integrity of parts and measurements before reassembly. 🔹 Inspection of piston rings, pistons, and cylinders. 🔹 Measurement of the block and crankshaft. 🔹 Inspection of main and connecting rod bearings. 🔹 Preparation of the cylinder head and its manifold if needed. 🔹 Replacement of seals, gaskets, and O-rings. 🔹 Cleaning of oil passages and internal parts. 🔹 Installation of original spare parts. 🔹 Free engine removal and installation. 🔹 Free inspection of the entire cooling system. 🔹 Inspection of oil hoses, air inlets and outlets, and mounts. 🔹 Installation of external parts without labor charges (parts are customer's responsibility). 🔹 Test drive after rebuild to ensure quality of work. 🚘 The engine may be compatible with some JAC J7 and JAC S4 models, provided the engine code and chassis number match. 📍 Riyadh – Industrial Area Oil and filter change after test drive completion. Keywords: JAC JS4, JAC Engine, JAC Rebuild, JAC J7, JAC S4, JAC Maintenance, Chinese Engine Rebuild, JAC JS4 Engine Rebuild