How Many Kilograms Does a Transmission Weigh?
2 Answers
A transmission typically weighs around 70-80 kilograms. Here is some extended information: 1. Function of Transmission: A device that changes the speed ratio and direction of motion. Used in automobiles, tractors, ships, machine tools, and various machines to alter the torque, speed, and direction of motion transmitted from the driving shaft to the driven shaft under different working conditions. A gear-driven transmission generally consists of a housing and several gear pairs. 2. Automatic Transmission: An automatic transmission is a type of transmission that can automatically shift gears based on the vehicle's speed and engine RPM, as opposed to a manual transmission. Currently, there are four common types of automatic transmissions in automobiles: hydraulic automatic transmission (AT), continuously variable transmission (CVT), automated manual transmission (AMT), and dual-clutch transmission.
I love modifying cars myself, and the weight of a transmission isn't fixed—it depends on the type. Manual transmissions are generally lighter, like those in small cars which might weigh around 50 to 70 kg—you can't lift it with one hand, but two people can manage. Automatic transmissions, such as AT or dual-clutch ones, are often heavier, ranging from 80 to 150 kg. Last time my friend replaced a Honda CVT transmission, he said it weighed over 90 kg. Why so heavy? Materials are key—aluminum casings are much lighter than iron ones. Nowadays, new cars prefer using aluminum to reduce weight, which improves acceleration and saves fuel. Weight also varies by vehicle type—compact cars might start at 40 kg, while SUVs or trucks could exceed 100 kg. If you're an owner looking to swap transmissions, I recommend checking the manual for weight or asking a mechanic—don't try it yourself to avoid back injuries or performance issues. Lightweighting is the trend, so future transmissions might be even lighter.
