REIN Tanks & Caps

Rein Automotive tanks and caps deliver OE-quality coolant expansion tanks, fuel caps, oil caps, and more designed for European vehicles. These components play a critical role in maintaining system pressure, preventing leaks, and supporting proper cooling and fueling performance. All Rein tanks and caps are engineered to match OE specifications for fit, sealing, and durability.

OE-Quality for Reliable Performance

Rein’s coolant expansion tanks and caps are built to last, preventing overheating and costly engine damage. Our fuel, oil, and reservoir caps provide proper closure and sealing for safe operation. Every part is tested to meet OE standards, ensuring reliable repairs. Rein Expansion tanks are made from 100% virgin plastic to withstand continuous heat cycles, preventing premature cracking and coolant loss. Rein caps regulate system pressure, ensuring correct operation of cooling, oil, and fuel systems while preventing leaks and damage to critical components.

Rein Tanks and Caps

• Coolant Expansion Tanks / Expansion Tank Kits
• Expansion Tank Caps
• Fuel Caps
• Oil Caps
• Power Steering Reservoirs