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A car’s gearbox (or transmission) is the component that transfers engine power to the wheels. This allows the vehicle to operate efficiently at different speeds and under varying loads. Whether you drive a traditional manual gearbox or an automatic transmission, proper maintenance is essential for reliable operation. If shifting problems occur or a serious fault develops, using high-quality replacement parts is the quickest way to restore reliability. We offer an extensive range of transmission parts for a wide variety of applications, so you can always find the right components for your gearbox. |
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A car’s gearbox (or transmission) is the component that transfers engine power to the wheels. This allows the vehicle to operate efficiently at different speeds and under varying loads.
Whether you drive a traditional manual gearbox or an automatic transmission, proper maintenance is essential for reliable operation. If shifting problems occur or a serious fault develops, using high-quality replacement parts is the quickest way to restore reliability.
We offer an extensive range of transmission parts for a wide variety of applications, so you can always find the right components for your gearbox.
Manual gearboxes Automatic gearboxes
A gearbox is a mechanical transmission that uses a series of gears to adjust the ratio between engine speed and wheel speed. This allows the internal combustion engine to operate within its optimal performance range. It ensures sufficient torque at low speeds and improved fuel efficiency at higher speeds.
The two main types are the manual gearbox, where the driver operates a clutch and gear lever, and the automatic transmission, where gear selection is controlled hydraulically or electronically.
Common variants of automatic transmissions include the CVT (Continuously Variable Transmission), originally developed in the Netherlands and used in early DAF passenger cars. There are also VAG dual-clutch systems such as the Direct-Shift Gearbox (DSG) and Dual-Clutch Transmission (DCT). These systems offer specific advantages in terms of efficiency, shift speed, and smooth operation.
The gearbox transfers power from the crankshaft via the input shaft and clutch assembly to a series of meshing gears within the transmission housing.
By selecting different gear pairs, the gear ratio between the engine and the wheels is changed. This directly affects both vehicle speed and the torque transmitted to the driveshaft.
In a manual gearbox, the driver temporarily disengages the engine using the clutch. The desired gear is then selected via a selector mechanism with synchroniser rings.
In an automatic transmission, this process is managed by hydraulic pressure, electronic controls, or dual clutches (in DCT systems), enabling smooth and efficient gear changes without driver intervention.
The exact cost of replacement can vary significantly and depends on the make and model of the vehicle and the type of gearbox.
To assess the condition of a gearbox, it is important to recognize early warning signs of potential failure. This helps identify issues at an early stage. Checking the transmission oil level and its condition is an important first step.
Key symptoms include transmission oil leaks, a burning smell or degraded oil, and warning lights on the dashboard. Difficulty shifting, inability to engage gears, slipping during gear changes, or unusual noises such as knocking or grinding may also indicate wear or internal damage.
A car’s gearbox (or transmission) is the component that transfers engine power to the wheels. This allows the vehicle to operate efficiently at different speeds and under varying loads.
Whether you drive a traditional manual gearbox or an automatic transmission, proper maintenance is essential for reliable operation. If shifting problems occur or a serious fault develops, using high-quality replacement parts is the quickest way to restore reliability.
We offer an extensive range of transmission parts for a wide variety of applications, so you can always find the right components for your gearbox.
Manual gearboxes Automatic gearboxes
A gearbox is a mechanical transmission that uses a series of gears to adjust the ratio between engine speed and wheel speed. This allows the internal combustion engine to operate within its optimal performance range. It ensures sufficient torque at low speeds and improved fuel efficiency at higher speeds.
The two main types are the manual gearbox, where the driver operates a clutch and gear lever, and the automatic transmission, where gear selection is controlled hydraulically or electronically.
Common variants of automatic transmissions include the CVT (Continuously Variable Transmission), originally developed in the Netherlands and used in early DAF passenger cars. There are also VAG dual-clutch systems such as the Direct-Shift Gearbox (DSG) and Dual-Clutch Transmission (DCT). These systems offer specific advantages in terms of efficiency, shift speed, and smooth operation.
The gearbox transfers power from the crankshaft via the input shaft and clutch assembly to a series of meshing gears within the transmission housing.
By selecting different gear pairs, the gear ratio between the engine and the wheels is changed. This directly affects both vehicle speed and the torque transmitted to the driveshaft.
In a manual gearbox, the driver temporarily disengages the engine using the clutch. The desired gear is then selected via a selector mechanism with synchroniser rings.
In an automatic transmission, this process is managed by hydraulic pressure, electronic controls, or dual clutches (in DCT systems), enabling smooth and efficient gear changes without driver intervention.
The exact cost of replacement can vary significantly and depends on the make and model of the vehicle and the type of gearbox.
To assess the condition of a gearbox, it is important to recognize early warning signs of potential failure. This helps identify issues at an early stage. Checking the transmission oil level and its condition is an important first step.
Key symptoms include transmission oil leaks, a burning smell or degraded oil, and warning lights on the dashboard. Difficulty shifting, inability to engage gears, slipping during gear changes, or unusual noises such as knocking or grinding may also indicate wear or internal damage.
