Thermostat Sandwich Adap ter

The EARLS Thermostat Sandwich Adapter (Model 502ERL) is a screw-in oil filter block sandwich plate designed to integrate modern cooling system accessories into your engine bay without complex custom fabrication. This product is ideal for engine builders and weekend mechanics looking to enhance their cooling systems.

This adapter bridges the gap between your factory thermostat location and aftermarket cooling components, allowing for the addition of external oil coolers, temperature sensors, or secondary thermostat housings. The compact profile (5.6 x 1.6 x 9.65 inches) fits tight engine compartments without requiring exhaust or intake relocation, and it weighs 1.69 pounds, minimizing thermal mass addition to your cooling circuit.

Street and track builders benefit most from this adapter, as it allows for clean plumbing of additional cooling circuits without drilling or welding. The sandwich design creates multiple port access points for hose connections, enabling simultaneous routing of coolant to auxiliary components while maintaining full factory thermostat function.