BMW E46 E39 E60 M54 Engine Cylinder Head 1436793 - Used Original Parts

Diagnosis and Common Symptoms

From the workshop floor, a compromised M54 cylinder head is almost always a result of severe overheating. The primary failure point is the head gasket, but the heat can warp the aluminum head itself, causing a loss of seal. Symptoms are unmistakable: significant white smoke from the exhaust (burning coolant), a milky, "milkshake" consistency in the engine oil, and persistent coolant loss without any visible external leaks. You may also experience rough running and misfire fault codes (P0300-P0306) as coolant fouls the spark plugs. A dashboard "Engine Overheat" warning is the final, critical alert.

Introduction

This is a Genuine BMW M54 engine cylinder head, carefully removed from a donor vehicle by our technicians. Every used head we offer has undergone a rigorous inspection process to ensure it is free from cracks and significant warping. Opting for a quality-tested, genuine used part ensures perfect fitment and restores the legendary smooth performance of your M54 engine without the cost of a brand new component.

Product Details

• Brand: BMW
• Model Compatibility: E46 (325i, 330i), E39 (525i, 530i), E60 (525i, 530i), X3, X5, Z4 with M54 engine.
• Part Name: Engine Cylinder Head (11121436793)
• Condition: Genuine Used (Tested Working)
• Notes: Head has been professionally cleaned and inspected for cracks and flatness. This is a bare cylinder head; valves, camshafts, and lifters must be transferred from your original head. We strongly recommend having the surface decked by a machine shop prior to installation to guarantee a perfect head gasket seal.