Transmission Governors & Modulators

At TDot Performance we offer the largest selection of transmission governors & modulators products in Canada

Select a Shop By Vehicle

My Garage

Clear All

Garage is empty.

Select a vehicle to store in your garage.

Shop Transmission Governors & Modulators

TDot Performance is the go-to online shop for high-quality transmission governors and modulators. These parts are vital in making certain an automatic transmission shifts properly with the appropriate firmness. A proudly Canadian brand, we are an authorized retailer that offers the latest performance parts such as innovative transmission and drivetrain components.

When pressing the gas pedal for a fast acceleration, hydraulic pressure in the transmission needs to be elevated in order to match the increase in engine torque. This results in shifts getting delayed, becoming more firm, and downshifting. For the proper interpretation of engine load by your transmission, a governor and a throttle valve are utilized to control pressure while a vacuum modulator is used to specify engine load to the throttle valve. The ideal acceleration is established when the transmission is held in gear longer along with firmer shifts. Hydraulic pressure needs to be increased to suit the engine load and to prevent potential transmission damages.

The transmission pump provides fluid to the governor and throttle valve, which then moves the fluid to shift valves in the valve body. The governor is driven by the transmission output shaft and generates pressure with regards to vehicle speed. In hard acceleration and high engine loads, the throttle valve moves against the shift valve to elevate governor pressure, resulting in the shift delaying and higher pressure being bestowed to the transmission bands and clutches. Meanwhile, the engine load is motioned to the throttle valve through a vacuum modulator or throttle valve cable. The vacuum modulator utilizes an integrated shaft to attach to the throttle valve while a rubber hose is used to connect to an engine vacuum source. With the gas pedal pressed quickly and the engine under heavy load, the low vacuum moves the throttle valve so the transmission shifts later and firmer. The throttle valve cable generates the proper mechanical connection between the carburetor or fuel injection throttle body and the transmission throttle valve.

TDot Performance is trusted by the most highly esteemed aftermarket brands in the automotive industry like B&M and BD Diesel to provide high-quality transmission upgrades to drivers residing in Canada. As a verified dealer, you can rest assured that all the transmission governors and modulators we carry are 100% authentic, brand-new, fully-sealed, and duly covered by the warranties provided by the original manufacturer. As Canada's go-to online shop for the most innovative automotive upgrades, we make it our mission to provide the lowest rates and the best deals in the whole of Canada. Whether you're from Toronto or Montreal, there won't be a need to pay for customs, duties or brokerage fees as what you see on our website is the exact and only amount you need to pay. Adding to that, TDot Performance provides superb customer service and quick deliveries that take only three to five working days to arrive at your location in Canada. If you have any inquiries regarding transmission modulators and governors, please don't hesitate to give us a call at 1-800-276-7566, or email us at

Shop Auto Parts By Vehicle

Transmission Governors & Modulators