Dorman Engine Coolant Thermostat Housing Assembly for Infiniti/Nissan 902-5902 — Direct-Fit, Heat‑Resistant

The Dorman 902-5902 is a direct-fit replacement engine coolant thermostat housing assembly engineered to match the factory outlet on select Infiniti and Nissan vehicles.

This replacement housing is built to mirror the original part’s fit and function while offering aftermarket value. It’s constructed from materials chosen to resist thermal stress and deterioration so the unit maintains sealing and coolant routing under repeated temperature cycles. Before purchasing, verify your vehicle’s year, make and trim — the part is compatible with multiple model years across Infiniti JX35, QX60 and a wide range of Nissan Altima, Maxima, Murano, Pathfinder and Quest vehicles.

How does this thermostat housing restore coolant flow and engine temperature control?

Installed in place of the factory water outlet, this housing routes coolant between the engine and thermostat, helping the cooling system maintain proper operating temperatures. A precise fit reduces the risk of leaks and keeps thermostat placement consistent for reliable temperature regulation.

• Direct replacement for the original water outlet on specified years and models
• Designed to keep thermostat position and coolant paths unchanged
• Sealing surfaces engineered to minimize leaks when installed correctly

What materials and design features make it durable for long-term use?

The assembly is manufactured to withstand frequent thermal cycling and exposure to coolant and contaminants found in automotive systems. Reinforced mating faces and corrosion-resistant materials reduce the chance of cracking or warping that can create leaks over time.

• Heat-tolerant body engineered to resist stress cracking
• Precision-machined sealing surfaces for improved leak resistance
• Corrosion-resistant finish to extend service life

Which vehicles and years is the Dorman 902-5902 compatible with?

This housing fits many Infiniti and Nissan models across specific production years. Always confirm fitment using your exact trim information or a vehicle lookup tool before ordering to ensure correct application for your car.

• Infiniti JX35: 2013
• Infiniti QX60: 2014–2020
• Nissan Altima: 2007–2018 (varies by trim)
• Nissan Maxima: 2009–2021; Nissan Murano: 2008–2021; Pathfinder: 2013–2020; Quest: 2011–2017

How does choosing this aftermarket assembly compare to buying from a dealer?

This Dorman assembly is positioned as an economical alternative that maintains fit and performance similar to the original equipment. It’s designed, tested and produced by a well-known aftermarket supplier to meet common repair needs while reducing parts cost and vehicle downtime.

• Offers OEM-style fit and function at a lower aftermarket price point
• Professionally engineered and quality-controlled by the manufacturer
• Backed by the brand’s reputation for replacement cooling components

Who this is for: The Dorman 902-5902 thermostat housing assembly is for DIY mechanics, independent repair shops, and fleet managers seeking a reliable, cost-effective replacement for a failed or leaking factory water outlet on compatible Infiniti and Nissan vehicles. If your vehicle shows signs of coolant leakage around the thermostat area, overheating related to coolant flow problems, or you’re completing a cooling-system overhaul, this part offers a practical direct-fit option — just confirm your specific model year and trim before purchase.