Removal & Installation

NOTE: Numbers in parenthesis refer to numbers in illustration.

Disconnect the negative battery cable. Remove ignition coil. Drain the engine coolant. Remove water inlet pipe (1). See Fig 1. On A/T models, disconnect oil cooler. On all models, remove thermostat housing (2). Remove thermostat (3).
To install, reverse removal procedure. Verify that the jiggle pin is aligned with the projection on the thermostat gasket as shown. See Fig 2. Install the thermostat into the thermostat case, aligning the projection on the gasket to the thermostat case as shown. See Fig 3.
Tighten thermostat housing bolts to specification. See TORQUE SPECIFICATIONS . Fill and bleed cooling system. See COOLING SYSTEM BLEEDING .

Fig 1: Removing Thermostat

Courtesy of MAZDA MOTORS CORP.

Fig 2: Verifying Thermostat Jiggle Pin Is Aligned

Courtesy of MAZDA MOTORS CORP.

Fig 3: Installing Thermostat

Courtesy of MAZDA MOTORS CORP.