Engine Oil Pre-Heater

The MOROSO Engine Oil Pre-Heater (Part #23990) is a 212-watt internal element heating system designed to warm engine oil before cold starts, reducing engine wear during initial operation. This weld-on oil pre-heater connects directly to the oil pan or block via a 1-1/4 inch NPT steel fitting, providing controlled warmth when ambient temperatures drop or during extended idle periods. The 120-volt electric element with a 7-foot power cord makes installation straightforward for both shop and field use.

Cold oil exhibits higher viscosity, forcing the engine to work harder during startup and increasing stress on bearings, rings, and valve train components. A 212-watt pre-heater brings oil to operating temperature while the engine remains off, ensuring proper lubrication thickness at ignition. The 1-1/4 inch NPT male fitting integrates into existing oil galleries or direct-weld bungs, creating a permanent installation suited to vehicles undergoing performance modifications or stored in unheated facilities. The 7-foot cord length accommodates most shop layouts and garage electrical access points.

This pre-heater is essential for high-performance engines, vintage vehicles, or any application where rapid cold-start protection is critical. Racers, restoration shops, and mechanics working with sensitive powertrains rely on oil heating to extend component life and improve reliability. The 120-volt standard household current requirement means no special electrical infrastructure is needed—simply plug into any grounded outlet before engine start. MOROSO's industrial-grade construction delivers consistent heating cycle after cycle.

Engine oil pre-heaters have become standard practice in shops managing high-value engines, frozen-climate operations, or motorsports applications where every cold-start event risks internal damage. This weld-on design eliminates dependence on block heaters and allows targeted thermal management of the lubrication system itself, separate from coolant warming.