BMW 1 & 3 Series Coolant Expansion Tank with Cap and Level Sensor | Direct Fit for E81 E82 E87 E88 E90 E91 E92 E93 E84 E89 Z4 | N52 N54 N55

BMW Cooling System Refresh Kit – Prevent Leaks & Restore Performance

Keep your engine running cool and prevent costly breakdowns with our Cooling System Refresh Kit. Designed to stop leaks in their tracks, this complete solution includes a brand-new coolant expansion tank, coolant level sensor, and reservoir cap—everything you need for a reliable fix.

Crafted from high-quality, durable plastic, this kit is built to withstand heat and pressure while remaining more affordable than OEM components. Don’t let a minor coolant leak escalate into overheating or catastrophic engine failure—restore your cooling system before it’s too late!

Key Benefits:

• Restores Cooling System Performance – Stops leaks that can lead to overheating and engine damage.
• Direct OEM Fitment – No modifications or adapters needed—installs seamlessly.
• Complete Kit – Includes a reservoir cap and coolant level sensor for a hassle-free replacement.
• Leakproof Design – Engineered to prevent coolant leaks at critical sealing points, unlike cheap alternatives.
• Secure, Snug-Fitting Connections – Precision-molded attachment points ensure a tight and reliable fit.

Compatible BMW Models: Fits BMW E81, E82, E87, E88, E90, E91, E92, E93, E84, E89 Z4 with part numbers: 17137567462, 17137640514, 17137553919.

Prevent leaks. Protect your engine. Drive with confidence.

Please refer to the “Fitment” section in the product description for compatibility details.