Four Seasons 84820 Engine Coolant Water Outlet

Four Seasons Water Outlet 84820 Overview

Four Seasons Water Outlet 84820 is an engine coolant water outlet for applications that use a thermostat housing-style outlet without the thermostat included. Built from aluminum or cast iron depending on application, it includes the gasket or seal and meets or exceeds OEM requirements for fit and function. This part number is a direct replacement choice for classic Chevrolet cooling system repairs, including Chevrolet Bel Air, Corvette, Impala, and El Camino applications.

Key Features

• Engine coolant water outlet for thermostat and housing service
• Style: without thermostat
• Thermostat not included
• Gasket or seal included
• Material options: aluminum or cast iron
• Inlet diameter: 1.5 in.
• Bolt hole center to bolt hole center: 3.250 in. / 3.27 in.
• Maximum height: 2.700 in.
• Mounting flange width: 0.460 in.
• Meets or exceeds OEM specifications

Product Details

Four Seasons 84820 is an engine coolant water outlet used in cooling system service where the outlet is separate from the thermostat. It is built to match OEM-style dimensions and mounting points, with a 1.5-inch inlet and bolt spacing that supports proper alignment during replacement. For Chevrolet Bel Air, Corvette, Impala, and El Camino cooling system repairs, this water outlet helps restore a secure coolant passage connection at the housing.

This part cross-references Gates 28200 and Motorad 4820KT for the same application. Four Seasons Water Outlet 84820 is also listed under multiple interchange numbers, making it easier to match against existing catalog references during parts lookup.

Common Repair Uses

• Replacing a leaking or corroded coolant outlet
• Restoring a damaged thermostat housing outlet surface
• Correcting coolant seepage at the gasket or seal area
• Addressing fitment issues from warped or worn outlet flanges
• Servicing classic Chevrolet cooling systems with OEM-style dimensions

Installation Notes and Tips

Verify inlet diameter, bolt spacing, and mounting flange dimensions before installation. Clean the mating surfaces thoroughly and inspect the hose connection area for wear before installing the included gasket or seal. Because the thermostat is not included, transfer or replace the thermostat separately if your application requires one. Confirm vehicle-specific fitment for Chevrolet C10 Suburban, C20 Suburban, K10 Suburban, K20 Suburban, Bel Air, Corvette, Impala, and El Camino applications before assembly.

Quality Assurance

Four Seasons 84820 is manufactured to meet or exceed OEM requirements for engine coolant service. It is cataloged for 1955-1968 Chevrolet cooling system applications, including 1967-1968 Chevrolet C10 Suburban, C20 Suburban, K10 Suburban, and K20 Suburban, plus 1955-1965 Chevrolet Bel Air, 1956-1965 Chevrolet Corvette, 1959-1965 Chevrolet Impala, and 1959-1960 Chevrolet El Camino.