Motorad MG188EA Engine Coolant Thermostat Seal O-Ring

The Motorad MG188EA is a precision-engineered engine coolant thermostat seal designed to deliver a reliable, leak-free connection at the thermostat housing. This lathe-cut, stepped O-ring seal is constructed from high-quality rubber and built to withstand the extreme temperatures and chemical demands of modern cooling systems.

Key Features:

• High-Quality Rubber Construction: Made from premium rubber materials specifically selected for resistance to engine coolant and high operating temperatures
• Precision O-Ring Design: Lathe-cut, stepped O-ring profile ensures an accurate, snug fit to the thermostat for a long-lasting, durable seal
• Meets or Exceeds OEM Standards: Engineered to match or surpass original equipment specifications for a direct, no-modification installation
• Inner Position Fitment: Designed for the inner seal position on compatible thermostats
• Adhesive-Backed Option Support: Part of Motorad's gasket and seal line, which uses adhesive backing on applicable parts to simplify alignment and reduce installation time

Specifications:

• Seal Type: O-Ring (Lathe Cut, Stepped)
• Material: Rubber
• Inside Diameter: 50.04 mm (1.97 in)
• Outside Diameter: 57.91 mm (2.28 in)
• Thickness: 14.50 mm (0.57 in)

OEM & Cross-Reference Part Numbers: Chrysler 4761292, Chrysler 4797255, ACDelco 12S27, Stant 25292, Gates 33674, Parts Master 99188, Worldparts 9MG188, Murray/CST 2392

Motorad has been a trusted manufacturer of thermostats, radiator caps, and cooling system components since 1958. All Motorad aftermarket parts are manufactured in Tier-1 OEM facilities and undergo comprehensive quality testing to ensure dependable performance.