BMW Engine Coolant Thermostat O-Ring - Reinz 11531312635

Ensure a leak-free and efficiently operating cooling system with the **Reinz Engine Coolant Thermostat O-Ring**, Part Number **REI-703656800** (OE: 70-36568-00, 11531312635).

This high-quality O-ring from Reinz, a trusted name in sealing solutions, provides a crucial seal for your BMW's engine coolant thermostat. It prevents coolant leaks, helping to maintain optimal engine operating temperatures and ensuring the longevity of your cooling system.

This thermostat O-ring is specifically designed for:
* **BMW M5 (1991-1993)** with the 3.6L L6 S38 Gas engine.

**Please Note:** For a complete seal and proper repair, it is recommended to also use O-Ring 11531312287.