Beck Arnley 143-0774 Engine Coolant Thermostat

OE-Style Thermostat for Ford and Mazda Applications

Beck Arnley 143-0774 is an engine coolant thermostat built to foreign nameplate OE specifications for form, fit, and function. It is specified at 198 degrees and includes the gasket/seal, while the housing is not included.

Key Features

• Engine coolant thermostat with 198-degree temperature rating
• Housing not included
• Includes gasket/seal for installation
• OE-style fitment for Ford Ranger, Mazda B4000, Ford Aerostar, and Mazda Navajo applications
• Beck Arnley 143-0774 for direct replacement service

Detailed Description

Beck Arnley 143-0774 is a replacement engine coolant thermostat for cooling system service on select Ford and Mazda vehicles. Built to match OE specifications for form, fit, and function, it supports proper coolant flow control at the specified 198-degree opening temperature. This part is a practical choice for Ford Ranger and Mazda B4000 thermostat replacement, as well as Ford Aerostar and Mazda Navajo cooling system repairs.

Beck Arnley sources parts through a global network to help ensure the correct application is selected for the vehicle. If you are replacing a thermostat on a 1990-1999 Ford Ranger, 1994-2000 Mazda B4000, 1992-1995 Ford Aerostar, or 1991-1994 Mazda Navajo, Beck Arnley 143-0774 provides the specified thermostat temperature without the housing.

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Delayed coolant circulation during warm-up
• Temperature fluctuation from a sticking thermostat
• Cooling system service on Ford Ranger and Mazda B4000 models
• Replacement of a thermostat that no longer opens at the correct temperature

Installation Notes and Tips

Install with the included gasket/seal and verify the housing condition before reassembly, since the housing is not included. Confirm the 198-degree specification matches the original application before installation. For best results, inspect coolant condition and bleed the cooling system after service.

Quality Assurance

Beck Arnley parts are sourced to meet foreign nameplate OE specifications for form, fit, and function. Part number 143-0774 is built for the listed applications and temperature specification, giving technicians a direct replacement option for cooling system repair.