Vemo V20-99-1253 Engine Coolant Thermostat

Engine Cooling Control for BMW Applications

The Vemo V20-99-1253 engine coolant thermostat is an OE-style replacement built around an 88°C opening temperature for stable coolant regulation. It is listed for select BMW 3 Series and 5 Series applications, including BMW Z3, BMW M3, BMW 318i, BMW 318is, BMW 318ti, BMW 320i, BMW 325i, BMW 325is, and BMW 525i.

VEMO product line parts are selected for direct-fit service work where accurate temperature control and consistent housing dimensions matter. This thermostat is supplied with gasket coverage noted in the fitment data and is sized at 67 mm wide, 67 mm long, and 50.85 mm high.

Key Features

• Engine coolant thermostat with 88°C opening temperature
• OE-style dimensions: 67 mm width, 67 mm length, 50.85 mm height
• Fits select BMW cooling system applications
• Listed with gasket in fitment notes
• Vemo part number V20-99-1253 for catalog matching

Detailed Description

The Vemo V20-99-1253 thermostat regulates coolant flow so the engine reaches and maintains its operating temperature more consistently. For BMW owners searching for an 88 degree thermostat for BMW Z3, BMW M3, or BMW 3 Series cooling service, this part provides a direct replacement option with the dimensions and temperature rating specified for the application. The part number V20-99-1253 is also useful when cross-checking service records or ordering by catalog reference.

This thermostat cross-references Gates 22688 for the same application.

What It Helps Address

• Engine running too cool or taking too long to warm up
• Temperature fluctuation during normal driving
• Cooling system service on BMW 318i, 325i, and 525i models
• Thermostat replacement during overheating diagnosis
• Fitment verification when ordering by V20-99-1253

Installation Notes and Tips

Confirm engine code and cooling system configuration before installation, especially on BMW 320i applications noted through 12/1995. Inspect the mating surfaces and follow the vehicle service procedure for coolant draining, bleeding, and refill. Because the fitment notes specify gasket coverage, verify the sealing surface condition and replace any damaged coolant hoses or housing components during service if needed.

Quality Assurance

Vemo VEMO cooling components are cataloged for European vehicle service applications and are matched to the listed BMW fitments for dimensional and temperature accuracy. Use the part number V20-99-1253 to confirm the correct thermostat before installation.