Craftsman Hydro-Gear Transaxle 176057, 311-3500

Transaxle 176057 is the rear drive unit that helps your tractor move forward and reverse in a smooth, steady way.
It sits at the back of the machine where the rear wheels get their power.
People replace it when the tractor feels weak, slow, or it struggles to move like it used to.
If your old unit is worn out and you want your machine to drive right again, matching the correct unit matters, and this one is tied to the verified model list for this part.
Transaxle 176057.

Some manuals also remind owners about cooling care.
Keep the transmission fan and cooling fins clean for proper cooling, and do not clean while the engine is running or while the transmission is hot.
Source

Fitment Matrix 

This part fits the Craftsman engine & drivetrain model 917311-3500 using verified part number 176057, and it is shown on the OEM part page under the models using this exact transaxle, which is the right way to confirm a correct drivetrain match.

This part fits the Hydro-Gear engine & drivetrain model 311-3500 using verified part number 176057, and the Hydro-Gear 311-3500 diagrams page helps confirm you are matching the correct transaxle family before you buy.

This part fits the Craftsman front-engine lawn tractor model 917277090 using verified part number 176057, and the OEM part page lists this model under the models using this exact transaxle for fit checking.

This part fits the Craftsman front-engine lawn tractor model 917277480 using verified part number 176057, and it appears on the OEM part page in the models list tied to this transaxle, so you are not guessing on compatibility.

This part fits the Craftsman front-engine lawn tractor model 917276120 using verified part number 176057, and it is listed on the OEM part page under the models that use this transaxle, which is the clean confirmation buyers look for.

This part fits the Craftsman front-engine lawn tractor model 917275221 using verified part number 176057, and the OEM part page shows this model in the list of models using this exact transaxle for the drivetrain section.

This part fits the Craftsman front-engine lawn tractor model 917275222 using verified part number 176057, and the OEM part page includes it in the models list for this transaxle so you can match your model tag with confidence.

This part fits the Craftsman front-engine lawn tractor model 917275223 using verified part number 176057, and it is listed on the OEM part page under the models using this part number, helping you avoid close-enough mistakes.

This part fits the Craftsman front-engine lawn tractor model 917275241 using verified part number 176057, and it appears on the OEM part page under the models list for this transaxle, which supports a correct replacement match.

This part fits the Craftsman front-engine lawn tractor model 917275242 using verified part number 176057, and the OEM part page lists it as a model using this exact transaxle, which is the fit check point you want before ordering.

FAQ

What is Transaxle 176057?
It is the transaxle listed as part number 176057 on the OEM parts page, and it is tied to the specific models shown in that fitment list.
confirm I am buying the right one?
Match your tractor model number to the models shown on the OEM Transaxle 176057 page, and if you are checking by Hydro-Gear family, use the 311-3500 diagrams page as a second confirmation point.

What simple maintenance helps it run cooler?
Keep the transmission fan and cooling fins clean for proper cooling, and do not clean while the engine is running or while the transmission is hot.

If I remove and reinstall the transmission, do I need to do anything before using it?
Some Craftsman manuals say the transmission should be purged after removal and reinstallation before operati