TRANSMISSIONS

O’Reilly Auto Parts stocks everything you need from basic transmission maintenance to repair parts. Find A Store Near You



What Transmission Repair Parts Do I Need?

O’Reilly Auto Parts is here to help with all of your transmission repair needs. We carry replacement manual transmissions and automatic transmissions, as well as individual transmission repair parts. Check out our selection of clutch components such as clutch master cylinders, clutch slave cylinders, clutch cables, clutch plates, and clutch forks. We also carry torque converters, flywheels, transmission filter kits, transmission seals, clutch kits, and transmission fluid for a complete repair.
Show More Show Less

Automatic Transmission Products Automatic Transmission

Transmission Filter Kit Products Transmission Filter Kits

Torque Converter Products Torque Converters

Transmission Mount Products Transmission Mounts

Manual Transmissions Manual Transmissions

Clutch Hydraulics Clutch Master Cylinders & Clutch Components

Clutch Parts Clutch Kits, Tools & Plate Parts

Flywheels Flywheels

Transmission Bearings Transmission Bearings

Transmission Seals Transmission Seals

Transmission Part Brands

Looking for a specific brand? O’Reilly Auto Parts carries transmission systems and components from established brands. Check out our selection of Power Torque transmissions and transmission parts from Pioneer Inc. We also carry transmission seals from Master Pro and National to help complete your transmission repair.
Show More Show Less
Power Torque Power Torque
Pioneer Pioneer Inc.
National National
Master Pro Master Pro

Transmission Tools & Accessories

Transmission Jacks Transmission Jacks

Drain Pan Drip & Drain Pans

Hanging Work Lights Work Lights

Transmission Fluids. Automatic, Manual, Dual Clutch, Transfer Case Transmission Fluids

With regular maintenance, your vehicle’s transmission can give you years of dependable performance. When it’s time to change the fluid and filter in your automatic transmission or replace the clutch, throwout bearing and pressure plate in your manual transmission, O’Reilly Auto Parts is here to help. We have the parts you need for everything from basic transmission maintenance to repair parts like control modules, bearings, seals, pressure switches, mounts and even rebuild kits. The transmission converts the engine’s rotational power into torque, which is sent to the axle causing the wheels to rotate. The reason a transmission is necessary is because the power produced by the engine has a too high and variable RPM to be used for driving, and must be reduced through the proper gear ratio in order for the vehicle to be controlled at an appropriate speed. The transmission also utilizes a clutch or torque converter to decouple the transmission from the engine to allow your vehicle to remain stationary when you come to a stop. There are two main categories of transmissions, manual and automatic. The manual transmission is controlled by the driver, who uses a foot pedal clutch to switch gears. Manual transmission vehicles can be equipped with a number of gear options, but many modern vehicles are equipped with 5-speed or 6-speed transmissions. Automatic transmissions change gears without the driver having to operate a clutch. They come equipped with a gear range selector, and use transmission fluid pressure to activate the appropriate gear for the vehicle at different speeds. This allows the driver to select drive and allow the transmission to shift gears automatically at the appropriate shift points. Some models may also have variations of the automatic transmission such as semi-automatic or continuously variable transmissions (CVT).