Parts for Mtd 170-AU: Au Crankcase Parts

Piston ring set for small engines. Installs between cylinder wall and piston to maintain gas compression. Replace if rings are worn or damaged.

Pistons are essential for proper engine function. When expanding gases push the piston, it turns the crankshaft. When the piston compressed the fuel-air mixture, the spark ignites and causes combustion. If the pistons are going bad, owners might notice white or gray exhaust smoke, low power when accelerating, loss of performance, or excessive oil consumption.Pistons may need to be replaced for any number of reasons. They could have damage to their crown, which could be caused by overheating. There could be impaction marks if they were not installed correctly or if the valve timing is incorrect. The pistons could be fused or have elements that have melted, or there could be cracks in the piston. Any of these issues would necessitate a replacement.This piston is used for select small engines from MTD, Troy-Bilt, Yard Machines, Columbia, and Cub Cadet. Each piston is sold individually and is a genuine OEM part sourced from the manufacturer. Those who need to replace more than one piston will need to buy them separately.

Connects piston to connecting rod inside the engine cylinder. Replace if pin is stripped, worn, or missing to restore proper piston assembly and movement.

Metal connecting rod assembly that links the crankshaft to the piston in small engines. Replace if rod is bent, cracked, or damaged from wear or impact.

Governor arm shaft for small engines on lawn and garden equipment. Connects governor assembly to carburetor. Replace if worn, damaged, or broken.

Engine won't start or runs rough? This camshaft assembly converts rotational motion to reciprocal motion for proper engine operation. Moderate DIY repair.

Engine won't start after sudden stop? A sheared flywheel key breaks the connection between crankshaft and flywheel. Simple DIY repair.

Engine surging or racing? Replace a worn governor gear and shaft assembly. Critical for speed control on small engines. Moderate DIY repair.

This is a crankcase gasket that seals the crankcase cover to the engine block on a lawn mower. It prevents oil from leaking out of the engine and keeps contaminants from entering the crankcase. Replace this gasket if you notice oil pooling beneath the engine, visible oil seepage around the crankcase cover, or if the gasket is torn or deteriorated.

This oil fill plug is an OEM part sourced directly from the manufacturer, and it is sold individually. It is manufactured by MTD. An oil fill plug keeps the oil where it is supposed to be in the machine. It is designed for use with snowblowers, tillers, leaf blowers, wood chippers, and log splitters. It is compatible with products from brands such as Craftsman, Cub Cadet, Troy-Bilt, Yard Machines, and MTD.The oil fill plug is crucial in preventing oil from leaking as well as clearing the path upon removal for any needed oil changes. It is removed when the oil needs to be drained. The replacement or repair process of the oil fill plug should be straightforward, though it may be helpful if the owner or operator uses a socket wrench to aid in the replacement process. The user replacing the part should always wear gloves during any assembly, replacement, or installation processes. The user should also refer to the owner's manual of their equipment and any guiding diagrams that clarify the placement location.

This replacement part is an oil seal. This is a genuine replacement part made by MTD. This part is used to ensure that oil and other fuel cannot escape from the tank. The seal prevents it from leaking during use to ensure the engine is able to run properly. A new oil seal might be needed if the current one has been damaged. If the seal is worn down and thinner than before, it can cause leaks and oil waste. If this is the case, the seal should be replaced immediately. Oil leakage can cause other issues within the machine. Refer to the owner's manual for more information on how to replace this part. This is a genuine OEM replacement part. This part is sold individually and is sourced directly from the manufacturer.

This short block assembly is a genuine OEM replacement part sourced directly from the manufacturer for use with the engine in many lawn and garden machines. The camshaft, crankshaft, piston, rod, valves, and governor are included in the kit. The gasket replacement kit is also included in the assembly. Damaged engines are costly and time-consuming to rebuild. Replacing the short block assembly is a less expensive option. Damage to the crankshaft is common in outdoor lawn and garden equipment. Rocks, sticks, and other debris can get caught in the engine and damage the camshaft or crankshaft. When this occurs, replacing the short block is easier than taking the entire short block apart to replace the damaged part. If the crankshaft is damaged, there is no reason to replace the entire engine when a replacement short block assembly will provide necessary repairs at a lesser cost.This short block assembly is sold as an individual part. It comes pre-assembled and ready to install. This assembly is designed for use in leaf blowers, log splitters, tillers, wood chippers, and other small engines manufactured by Cub Cadet, MTD, Yard Machines, and Troy-Bilt.

This replacement part is an oil seal. This part is small but important in various types of machines that rely on oil to run. The oil seal is found near the fuel tank and ensures that there are no leaks. If the machine is leaking oil, it can be due to a damaged oil seal. Seals like this one can wear out over time or be knocked out of place by impact.This is a genuine OEM replacement part manufactured by MTD. This part is sold individually.

Replace a tiller engine that won't start, has no compression, or runs rough. Complete assembly includes all internal parts for easier installation.

This replacement part is an external gasket kit, and it is intended for use in different types of lawn equipment. This is a genuine replacement part made by MTD. This gasket kit is different from typical gasket kids as they are used on the external side of the engines. These gaskets are still very important to the engine as a whole and allow it to run smoothly during use.A new external gasket kit might be needed if the current one is broken or damaged. If there are noises coming from inside the machine it is possible that the parts of the gasket are out of place or could be malfunctioning. Be sure the engine of the appliance is completely powered down and cooled off before replacing the gasket kit as this area can be hot from use.Be sure to reference the specific user manual prior to beginning this repair. Note that this is a genuine OEM replacement part and is told individually. This part is sourced directly from the manufacturer.

This genuine OEM complete engine gasket kit is sourced from the manufacturer for use in tillers, blowers, chippers, and other outdoor lawn and garden machines. The kit contains all the gaskets that are required to fit in and on the many different parts of the engine. These gaskets provide protection from outside elements that could interfere with engine performance, such as rain or debris. These gaskets also keep fluids and air from leaking out of the engine, which can reduce engine performance as well. Engine gaskets should be inspected and maintained to ensure proper engine performance. The gaskets are made of materials intended to withstand high heat, like silicone, cork, rubber, or paper, depending on where it is installed. Over time, the gaskets may become worn, cracked, or torn and need to be replaced. A screwdriver is required to remove the engine cover to access the various gaskets. This complete engine gasket kit allows for the replacement of all gaskets. Clean old grease from the engine before installing the new gaskets. Add new lubricant before installing the new gaskets. Replace the engine cover and tighten screws. This gasket kit is sold as one unit. This gasket kit is designed for various MTD, Cub Cadet, Troy-Bilt, and Yard Machines engines.