Vemo V25-99-1732 Engine Coolant Thermostat

Engine Coolant Thermostat for Mazda Cooling Systems

Restore proper coolant flow and temperature control with the Vemo V25-99-1732 engine coolant thermostat. This OE-style thermostat opens at 89°C and is supplied with a pipe socket and gasket-related kit details noted in fitment, making it a practical replacement for Mazda cooling system service.

Compatible With Mazda 3, Mazda 3 Sport, Mazda 5, and Mazda MX-5 Miata applications across model years 2004 through 2015. The VEMO Expert Kits+ approach means the needed parts are packed in one box for a cleaner repair process.

Key Features

• Part number: V25-99-1732
• Engine coolant thermostat with 89°C opening temperature
• Supplementary article info: with pipe socket
• Dimensions: 128 mm length, 148 mm width, 93 mm height
• Pipe diameter: 32.5 mm
• Brand line: VEMO Expert Kits+ bundles the required service parts in one package
• Cross-reference example: 4M5G-8575-EB

Detailed Description

The Vemo V25-99-1732 is an engine coolant thermostat built for Mazda cooling system service where stable operating temperature matters. Its 89°C opening point helps regulate coolant circulation once the engine reaches the correct temperature, supporting consistent warm-up and temperature control in Mazda 3, Mazda 3 Sport, Mazda 5, and Mazda MX-5 Miata models. The VEMO Expert Kits+ line is organized to supply the needed parts together, reducing the chance of missing components during thermostat replacement. This part cross-references 4M5G-8575-EB and LF50-15-170 for the same application.

What It Helps Address

• Engine running too cool or taking too long to reach operating temperature
• Temperature fluctuation caused by a worn thermostat
• Coolant flow control issues in Mazda 3 and Mazda MX-5 Miata cooling systems
• Service replacement for thermostat housing-related maintenance
• Cooling system repairs where a pipe socket style thermostat assembly is required

Installation Notes and Tips

Verify the OE number, thermostat opening temperature, and housing style before installation. Confirm fitment for your exact Mazda 3, Mazda 3 Sport, Mazda 5, or Mazda MX-5 Miata year and build date, since some listings note cover or date-specific applications. Inspect the mating surfaces, flush the cooling system as needed, and refill with the correct coolant specification after installation.

Quality Assurance

VEMO Expert Kits+ is the brand’s packaged service approach for supplying the required parts together in one box. Use the listed dimensions, temperature rating, and interchange references to confirm the correct replacement before service.