Stant
Thermostat Seal

Stant 27266 Engine Coolant Thermostat Seal

Brand Stant 27266
Freight Class 85
Product line Thermostat Seal
Fits Ford and Mercury · 17 vehicles

OE specification. Conforms to original equipment requirements for a proper seal.

Thermostat seal. Helps maintain a secure seal in the cooling system.

Stant Thermostat Seal. From a trusted cooling-system brand line.

$8.86Free shipping
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Stant Thermostat Seal 27266 Overview

The Stant 27266 thermostat seal is an engine coolant thermostat seal built to conform to OE specification for a precise replacement fit. It is engineered for long-lasting operation in cooling system service and is a direct choice for classic Ford and Mercury applications that require a thermostat seal replacement.

Compatible with 1979 Ford Mustang, 1975-1979 Ford Pinto, 1975-1979 Mercury Bobcat, 1979 Mercury Capri, 1976-1977 Mercury Capri, and 1972-1974 Mercury Capri, this seal supports accurate thermostat sealing in vintage cooling system repairs. The Stant Thermostat Seal line focuses on OE-style fit and dependable service for maintenance on older vehicles.

Key Features

  • Engine coolant thermostat seal for cooling system service
  • Conforms to OE specification for proper replacement fit
  • Built for long-lasting operation in thermostat applications
  • Fits classic Ford Mustang, Pinto, and Mercury Capri/Bobcat applications
  • Stant part number 27266 for easy identification

Detailed Description

Stant 27266 is a thermostat seal designed for vehicles that need a reliable seal at the engine coolant thermostat housing. It is a practical replacement for service work on 1979 Ford Mustang, 1975-1979 Ford Pinto, 1975-1979 Mercury Bobcat, and 1972-1979 Mercury Capri applications. If you are searching for a thermostat seal for a 1979 Ford Mustang or a thermostat seal for a Mercury Capri cooling system repair, this part number provides a direct reference for the correct application.

This part cross-references replacement application 25266 for the same use case.

Common Uses

  • Replacing a worn thermostat seal during cooling system maintenance
  • Addressing coolant seepage at the thermostat housing
  • Restoring a proper seal after thermostat service
  • Supporting repairs on classic Ford and Mercury cooling systems
  • Helping maintain stable coolant flow through the thermostat assembly

Installation Notes and Tips

Inspect the thermostat housing and mating surfaces before installation. Clean away old gasket material, corrosion, and coolant residue so the seal can seat evenly. Verify the application by year, make, and model before ordering Stant 27266, especially on 1972-1979 Mercury Capri and 1975-1979 Ford Pinto or Mercury Bobcat vehicles.

Quality Assurance

Stant states that this thermostat seal conforms to OE specification and is engineered for long service life. The Stant Thermostat Seal product line is built for replacement applications where accurate fit and dependable sealing are important.

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1979FordMustangN/APart Replacement Replaces 25266; Thermostat Seal
1979FordPintoN/APart Replacement Replaces 25266; Thermostat Seal
1979MercuryBobcatN/APart Replacement Replaces 25266; Thermostat Seal
1979MercuryCapriN/APart Replacement Replaces 25266; Thermostat Seal
1978FordPintoN/APart Replacement Replaces 25266; Thermostat Seal
1978MercuryBobcatN/APart Replacement Replaces 25266; Thermostat Seal
1977FordPintoN/APart Replacement Replaces 25266; Thermostat Seal
1977MercuryBobcatN/APart Replacement Replaces 25266; Thermostat Seal
1977MercuryCapriN/APart Replacement Replaces 25266; Thermostat Seal
1976FordPintoN/APart Replacement Replaces 25266; Thermostat Seal
1976MercuryBobcatN/APart Replacement Replaces 25266; Thermostat Seal
1976MercuryCapriN/APart Replacement Replaces 25266; Thermostat Seal
1975FordPintoN/APart Replacement Replaces 25266; Thermostat Seal
1975MercuryBobcatN/APart Replacement Replaces 25266; Thermostat Seal
1974MercuryCapriN/APart Replacement Replaces 25266; Thermostat Seal
1973MercuryCapriN/APart Replacement Replaces 25266; Thermostat Seal
1972MercuryCapriN/APart Replacement Replaces 25266; Thermostat Seal