Four Seasons 84878 Engine Coolant Water Outlet - Rear

Four Seasons 84878 Water Outlet Overview

The Four Seasons Water Outlet 84878 is an engine coolant water outlet for select Mercury Capri applications. Built from aluminum or aluminum/cast iron construction and supplied with the gasket or seal included, it provides a direct-fit cooling system service part for rear-mounted outlet locations.

Four Seasons Water Outlet line components are focused on engine coolant routing and replacement needs. This part number, 84878, is an OE-style outlet assembly that meets or exceeds OEM requirements and is specified without a thermostat.

Key Features

• Engine coolant water outlet for cooling system service
• Material: aluminum / aluminum-cast iron construction
• Gasket or seal included
• Thermostat not included; style is w/o thermostat
• Inlet diameter: 0.625 in.
• Bolt hole center to bolt hole center: 2.532 in.
• Maximum height: 1.090 in.
• Mnt flange width: 0.350 in.
• Meets or exceeds OEM specifications

Detailed Description

Four Seasons 84878 is an engine coolant water outlet designed for select Mercury Capri models with a rear, lower outlet application. It is built to support coolant flow at the outlet point of the cooling system and is listed as an outlet type component with the gasket or seal included for service replacement. If you are replacing a worn or leaking Mercury Capri water outlet, this part number 84878 provides the correct OE-style configuration for the specified fitment.

Compatible With 1972-1974 Mercury Capri, rear; outlet, lower, water outlet. Compatible With 1976-1977 Mercury Capri, rear; outlet, lower, water outlet. This part cross-references Gates 31415 and Motorad CH2064 for the same application.

Common Replacement Reasons

• Coolant seepage at the outlet housing
• Corrosion or pitting in the outlet body
• Damaged sealing surface at the gasket interface
• Incorrect coolant routing from a worn outlet assembly
• Service replacement for a rear lower water outlet on Mercury Capri

Installation Notes and Tips

Verify the outlet location, inlet diameter, and bolt-hole spacing before installation. Clean the mating surface thoroughly and inspect the hose connection area for wear or corrosion. Because the thermostat is not included, reuse or replace the thermostat separately only if your vehicle setup requires one.

Quality Assurance

Four Seasons 84878 is manufactured to meet or exceed OEM requirements for the listed application. Confirm fitment against your vehicle’s year, model, and outlet location before ordering.