- OEM part numbers: 32411097164 and 32416851217 ensure reliability and compatibility. - Designed specifically as a power steering pump reservoir bottle cap, it plays a crucial role in maintaining system integrity. - Compatible with various models, including E36, E46, E39, E53, E60, and E90, making it a versatile choice for many vehicle owners. - One-piece construction provides a straightforward and effective solution for these models, reducing the risk of leaks and ensuring a secure fit. - Essential for the proper functioning of your power steering system, this cap prevents contamination and maintains fluid levels, contributing to smoother steering performance. Use Scenarios: - Replace a worn or damaged cap to restore optimal power steering function and improve handling responsiveness in your vehicle. - Upgrade to this cap during routine maintenance checks to ensure your power steering system remains in peak condition. - Ideal for DIY enthusiasts and professional mechanics alike, making it a smart addition to your automotive toolkit. Constructed for durability, this power steering cap is engineered to withstand automotive conditions, ensuring long-lasting performance and peace of mind on the road.