Genuine OEM Jaguar Glow Plug Harness, part number JDE41436. This electrical harness is crucial for diesel engines, providing the necessary power and signal connections to the glow plugs. It connects directly to the glow plugs, typically located on the cylinder head, to pre-heat the combustion chambers for efficient cold starting. Choosing a genuine OEM harness ensures correct electrical resistance, durable insulation, and exact connector fitment for reliable engine operation.