Keep engine coolant contained where the thermostat meets its housing with the FEL-PRO Engine Coolant Thermostat Housing Seal / Engine Coolant Thermostat Seal 35445. This application-specific rubber seal installs as a direct-fit replacement across a wide range of applications, including the 2015-2018 Chevrolet City Express [L4-2.0L], 1992-2003 Lexus ES300 [V6-3.0L], 2007-2018 Nissan Altima [L4-2.5L], and 2005-2019 Nissan Frontier [L4-2.5L] — see the Buyer's Guide tab for the full list of 141 applications.
- Application-specific rubber: molded from proprietary materials to the exact sealing surface — 2.025 in inside diameter, 2.325 in outside diameter, 0.24 in thick.
- Built for real-world repairs: designed to seal even imperfect or troublesome surfaces.
- OE-level sealing: engineered to meet or exceed original equipment specifications.
- Premium grade: validated for fit, form, and function.
The seal sits between the coolant thermostat and its housing to keep coolant from seeping at the joint. If a worn or leaking thermostat seal is the cause of coolant seepage at the housing, this replaces it — diagnose the leak source first. Sold as a single seal; the listed applications use one per engine. Country of origin: China. Manufacturer part number 35445.
This part cross-references / interchanges with the following part numbers:
0390132, 112271, 112711, 112861, 21049ED00A, 21049ED00B, 21049ET01A, 19185389, 94856781, C31090, C32708, 740171, 1767950Z02, 163250H020, 163250T030, 1632528010, 1632562010, 1632576010, 711354600
