Beck Arnley 143-0943 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing for Nissan and INFINITI

Beck Arnley 143-0943 is an engine coolant thermostat housing assembly built to match foreign nameplate OE specifications for form, fit, and function. It is specified at 180°F / 82°C and is listed for select Nissan Frontier, Xterra, Pathfinder, NV van models, plus INFINITI G35 and FX35 applications.

Key Features

• Engine coolant thermostat housing assembly with 180°F operating temperature
• OE-style fit and function for foreign nameplate applications
• Includes metal gasket/seal on listed applications
• Designed for Nissan Frontier, Xterra, Pathfinder, NV1500, NV2500, and NV3500 coverage
• Also listed for INFINITI G35 and FX35 fitments
• Part number 143-0943 for accurate catalog matching

Detailed Description

Beck Arnley 143-0943 is a thermostat housing assembly engineered for direct replacement use in select Nissan and INFINITI cooling systems. The 180°F thermostat specification supports proper engine warm-up and temperature regulation, while the OE-focused design helps maintain the original housing fit and sealing profile. This part number 143-0943 is listed across multiple Nissan truck, SUV, and van platforms, including Nissan Frontier, Xterra, Pathfinder, NV1500, NV2500, and NV3500, as well as INFINITI G35 and FX35 applications.

Beck Arnley sources parts to meet foreign nameplate OE requirements, giving technicians and DIY installers a cataloged replacement option for cooling system service. For Nissan Frontier thermostat housing replacement or INFINITI G35 coolant thermostat housing service, verify engine and model-year details against the fitment list before installation.

Common Problems This Part Addresses

• Coolant leaks at the thermostat housing
• Cracked or warped housing surfaces
• Improper engine operating temperature
• Sticking thermostat-related temperature control issues
• Sealing problems at the housing gasket interface

Installation Notes and Tips

Confirm the vehicle year, model, and engine configuration before ordering. Clean the mating surfaces thoroughly before installation and inspect the cooling system for contamination, hose wear, or related leaks. The listed applications note a metal gasket/seal on many fitments, so match the part to the exact vehicle application in the catalog.

• Fits 2005-2019 Nissan Frontier, N/A
• Fits 2005-2015 Nissan Xterra, N/A
• Fits 2005-2012 Nissan Pathfinder, N/A
• Fits 2020-2021 Nissan NV1500, N/A
• Fits 2012-2015 Nissan NV1500, N/A
• Fits 2017-2019 Nissan NV1500, N/A
• Fits 2020-2021 Nissan NV2500, N/A
• Fits 2012-2015 Nissan NV2500, N/A
• Fits 2017-2019 Nissan NV2500, N/A
• Fits 2020-2021 Nissan NV3500, N/A
• Fits 2012-2015 Nissan NV3500, N/A
• Fits 2017-2019 Nissan NV3500, N/A
• Fits 2003-2006 INFINITI G35, N/A
• Fits 2004 INFINITI FX35, N/A

Quality Assurance

Beck Arnley parts are sourced to meet foreign nameplate OE specifications for form, fit, and function. That OE-focused approach supports confident replacement selection for cooling system repairs on Nissan and INFINITI vehicles.