🛢️ COOL YOUR OIL – FACTORY GM OIL COOLER ADAPTER FOR TURBO BUICKS
This is an OEM oil cooler adapter for the 1986–1987 Buick Grand National. It threads onto the engine block and provides ports to route oil through the radiator-based oil cooler. These adapters are getting harder to find, especially in usable condition. A must-have for anyone restoring a stock-style oiling system or preserving the factory cooling setup.
✅ Fits 1986–1987 Buick Grand National & Turbo Regal ✅ Threads between block and oil filter ✅ Includes 2 factory oil cooler line ports ✅ OEM casting – no aftermarket modifications
🟡 Yellow Dot – Removed from a parts car. Threads and housing appear intact, but not pressure-tested. Surface wear and grime present. Sold as-is for experienced builders or mock-up use.
