Vemo V40-99-1098 Engine Coolant Thermostat

Engine Coolant Thermostat for GM Applications

The Vemo V40-99-1098 engine coolant thermostat is built for GM vehicles that need precise coolant temperature control and OE-style fitment. It features a synthetic material housing, an integrated sensor, and a seal, with an opening temperature of 103°C for consistent engine warm-up and cooling system regulation.

VEMO Expert Kits+ packaging brings the needed thermostat-related components together in one box for a cleaner parts match during service. This V40-99-1098 thermostat is a direct-fit solution for select Buick Encore, Chevrolet Trax, Chevrolet Sonic, and Chevrolet Cruze applications.

Key Features

• Engine coolant thermostat with synthetic material housing
• Opening temperature: 103°C
• Includes sensor and seal
• 2-pole electrical connection
• Dimensions: 113 mm wide, 101 mm long, 84 mm high
• OE-style replacement for select Buick and Chevrolet models

Detailed Description

The Vemo V40-99-1098 thermostat is engineered for vehicles that rely on accurate coolant flow management to maintain stable operating temperature. Its synthetic housing supports a compact OE-style design, while the integrated sensor helps provide temperature feedback within the cooling system. This part number is commonly searched as V40-99-1098 thermostat, Vemo thermostat V40-99-1098, and engine coolant thermostat for Buick Encore and Chevrolet Trax.

Compatible With 2019-2021 Buick Encore, N/A; 2019-2021 Chevrolet Trax, N/A; 2019-2020 Chevrolet Sonic, N/A; 2018 Buick Encore, N/A; 2018 Chevrolet Sonic, N/A; 2018 Chevrolet Trax, N/A; 2013-2017 Buick Encore, N/A; 2012-2017 Chevrolet Sonic, N/A; 2011-2016 Chevrolet Cruze, N/A; 2016 Chevrolet Cruze Limited, N/A; 2013-2015 Chevrolet Trax, N/A.

This part cross-references 55565336 and 55579010 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 assembly
• Cooling system warning lights related to thermostat or sensor performance
• Improper coolant regulation in Buick Encore, Chevrolet Trax, Chevrolet Sonic, and Chevrolet Cruze models
• Service replacement needs where the thermostat housing and seal are being renewed together

Installation Notes and Tips

Verify OE number 25200455 and confirm the connector style, housing layout, and engine application before installation. Inspect the mating surfaces and cooling system condition during service, and replace coolant according to the vehicle manufacturer’s procedure after installation. This V40-99-1098 thermostat is listed with fitment notes that include housing and water pump inlet configurations on select 2018 applications.

Quality Assurance

VEMO’s Expert Kits+ approach packages the required thermostat-related parts in one box to support a more complete service replacement. The V40-99-1098 is specified with OE-style fitment details and application references for select GM vehicles.