24 of 84 Items
24 of 84 Items
When your transmission goes down, your truck stops earning. That's why we here at Fitzgerald Truck Parts stock a full range of semi truck transmission parts built for heavy-duty commercial use. Whether you are replacing a complete unit or tracking down a single component, we have the dependable options you need.
Our inventory includes complete assemblies and individual semi truck transmission components for fleets, owner-operators, and repair shops. From full rebuilds to downtime-critical repairs, we carry commercial truck transmission parts designed to handle serious torque and long-haul miles. Explore our full selection of engine and drivetrain parts to keep every system of your rig working together.
We make it easy to shop by component so you can find exactly what your repair requires. Complete transmissions are available in common configurations such as 10-speed, 13-speed, and 18-speed units. These are built for heavy-duty performance and long service life.
You will also find semi truck clutch and transmission parts including clutch brake components, clutch fork assemblies, clutch release shaft options, and other semi truck clutch components that support smooth engagement and reliable shifting.
For related products, browse our full line of clutches and clutch components to complete your repair. Additional categories include transmission sensors, valves, regulators, and electronic components that support modern transmission systems.
We also stock gaskets, seals, bearings, rebuild kits, shifters, linkage parts, brackets, and mounting hardware. If you need truck transmission parts for a small fix or a full rebuild, we supply all the essentials.
Brand compatibility matters when ordering semi truck drivetrain parts. At Fitzgerald, we support major transmission platforms used across commercial applications. Our inventory includes Eaton Fuller transmission parts and assemblies known for strength and reliability in heavy haul and long-distance service. We also carry Paccar transmission components engineered for integrated powertrain systems.
Spicer drivetrain parts are also available for customers running Dana and Spicer-supported setups. We stock Freightliner and Daimler transmission accessories designed to match OEM specifications as well. For cost-effective solutions, Newstar aftermarket components provide dependable replacement options for many heavy-duty applications. Choosing the right brand helps protect performance and fitment across your transmission system.
Transmission repairs are mission-critical. Downtime costs money, and the wrong part can slow a job down even further. At Fitzgerald, we offer both OEM and high-quality aftermarket commercial truck transmission parts so you can match your repair strategy to your budget and application.
Our inventory includes common and hard-to-find heavy duty transmission parts, helping reduce delays when a truck is in the bay. Competitive pricing supports fleets managing multiple units as well as independent operators handling their own maintenance. Plus, we focus on fast shipping to minimize downtime and keep your truck moving.
No matter if you're upgrading semi truck clutch components or installing a full transmission assembly, we have the parts you need, built for commercial performance. Order today to get your truck back on the road where it belongs.