Parts for Troy-Bilt 609: Drive System Parts

This is a part designed for a lawn mower. It is a single speed, complete transmission assembly that comes pre-greased in a sealed package. A mower transmission turns the engine, moving the mower back and forth, and provides a controlled application of power to the machine. The single speed transmission is responsible for moving the mower from 1 mph to whatever its top speed may be. This is an OEM part sourced directly from the manufacturer. It is sold individually.A single speed transmission is designed to deliver high torque output, have minimal transmission losses, minimum wear, and should operate smoothly. It is important to ensure that the fluids in the machine are checked regularly. Low transmission fluid is one of the most common causes of a slipping transmission. Unless properly maintained, the single speed transmission will perform poorly or stop working altogether which will result in it needing to be replaced.This part is compatible with lawn tractors, pedal drive lawn tractors, and automatic lawn tractors from MTD, Craftsman, Troy-Bilt, Yard Machines, and Husky.

If your lawn tractor won't change speeds or struggles with uneven power delivery, this variable speed pulley assembly controls shaft rotation speed changes.

V-belt pulley for lawn tractors. Installs on the engine or deck drive system. Replace if cracked, worn, or damaged to restore proper belt operation.

Hex washer head screw for lawn equipment. Secures components and panels. Replace if stripped, missing, or corroded for proper assembly and fit.

Hex screw for lawn mowers and garden equipment. Replaces cracked, stripped, or missing hex head bolts. Six-sided head fastens metal or wood components.

This replacement part is a hex screw, and it is intended for use in different types of lawn equipment. This is a genuine replacement part made by MTD. This screw can be used in a variety of ways depending on the repair needed. Hex screws are similar to no

This self-tapping screw is used to attach various parts to the engine housing of medium sized gasoline powered engines, in particular yard tools such as tillers, snow blowers, yard tractors, riding mowers, power vacuums, shredders, and chippers. It is use

This hex nut is designed for use with select trimmers and mowers. It is a standard hardware part that may have multiple applications depending on the type of unit and model. The nut is typically used to secure engine components or housing elements to prov

Hex nut for lawn tractors, tillers, and riding mowers. Secures various components and assemblies. Replace if stripped, corroded, or missing.

Hex lock nut secures bolted joints on outdoor lawn equipment. Replace if threads are stripped, nut is missing, or won't hold proper tension.

Replace a lost, stripped, or corroded nut on your lawn mower, tractor, or outdoor power equipment. Secures components for safe operation.

This is a flange nut that can be used in a variety of lawn and garden equipment from different manufacturers. The nut is made of metal, measures 5/16x18, and is used to secure components in place. It also assists with preventing backing out caused by vibr

This replacement part is a cotter pin. It is a genuine replacement part made by MTD. Cotter pins are also sometimes known as clevis pins and are responsible for fastening two metals together. This allows the machine to work properly and operate smoothly.

Ball joint assembly for lawn tractor steering systems. Secures tie rod ends and drag links. Replace if cracked, worn, or damaged to restore proper steering.

Insulator nut plate for lawn mowers. Self-wrenching fastening component that secures parts within the mower. Replace if cracked, damaged, or missing.

This extension spring attaches to the axle support bracket and the drive belt idler pulley on many types of lawn and garden equipment. It creates additional tension to the drive belt idler pulley. Sometimes the extension spring can be stretched out or may

This spring clip is a genuine MTD replacement part for lawn tractors and lawnmowers. The function of a spring clip is to fasten individual components together by maintaining spring tension. This spring clip is a metal part that most commonly clips the fra

Extension spring for lawn tractors and riding mowers. Replace if damaged, stretched, or losing tension to restore proper operation. Verify fit with model.

Extension spring for lawn tractors and riding mowers. Replace if stretched, broken, or causing poor engagement. Verify fit with your model number.

This is a replacement bell washer, a flat washer that can be used with a wide range of various types of lawn and garden equipment. The inner dimension of this washer is 0.40 inches, while the outer dimension is 0.88 inches. Washers are typically used as a

Replacement flat washer for lawn tractors and outdoor power equipment. Install between fasteners to distribute load. Replace if lost, damaged, or worn.

Replacement idler adjustment rod for lawn tractors and garden tractors. Replaces worn, bent, or broken rods. Installs in the drive system to control belt tension.

Variable speed drive belt connects engine to transmission for lawn tractors and riding mowers. Replace if stretched, damaged, or broken. Verify fit with your model.

Drive belt for lawn tractor transmission systems. Replace if you notice slipping, squealing, or loss of power. Verify fit with your model number.

This part is an idler pulley. The idler pulley applies tension to and guides the engine drive belt. A wrench set is needed to perform any repair involving the idler pulley part.The idler pulley can become worn over time with normal use. Wear to the pulley

Service kit for lawn tractors and walk-behind mowers. Includes essential parts for routine maintenance. Replace worn or missing components during service.

Compression spring for lawn tractors and snow blowers. Replaces worn, broken, or missing springs in various mechanical assemblies. Restores proper tension.

Replacement extension spring for lawn tractors and mowers. Installs internally to create tension for proper operation. Needed when original is broken, stretched, or missing.

Replacement pedal pad for lawn tractor auto-drive system. Installs on foot pedal control. Needed when original pad is cracked, worn, or missing.

Foot pad for lawn tractors and riding mowers. Replaces worn, cracked, or missing foot pads on the operator platform for comfort and safety.

A flat washer is used in a variety of applications, such as being placed under bolts or nuts as a means to help distribute the load over a larger area and to help ensure the nuts and bolts do not become loose over time. The washers also help to protect th

Flat washer flange for lawn mowers, snow throwers, tillers, and edgers. Replace when washer is missing, damaged, or worn to ensure proper assembly.

Hex flange bearing supports rotating shafts in riding mowers and tractors. Replace when you notice grinding noise or rough rotation. Verify fit with your model.

Flange bearing for lawn tractors and riding mowers. Replace if wheels wobble, make noise, or don't spin freely. Verify fit with your model number.

Metal support bracket for lawn tractors and mowers. Bolsters and stabilizes internal components. Replace if cracked, broken, or missing. Sold individually.

Tubeless air valve for lawn tractor and mower tires. Replace when cracked, leaking, or damaged during tire changes. Installs in wheel rim for proper inflation.

Replace the hex screw in your lawn tractor or riding mower. Used to secure various components throughout the machine. Order a new screw if damaged or lost.

Fully-threaded hex tap screw for lawn tractors and outdoor power equipment. Fastens machine components together. Replace if damaged, stripped, or missing.

This OEM screw is a fastener with a trimmed six-sided or hexagonal head plus a washer face on the bearing surface. It is one of the most commonly used fasteners. Considered standard hardware, this component has multiple applications and can be used on woo

The shoulder screw is used in places where a spacer or bearing surface is needed, since the top half of the screw is unthreaded. These fasteners are often used for guides, pivot points, mounting pins, axles, and even a shaft for bearings and bushings in v

Hex head screw for lawn tractors and riding mowers. Secures covers, guards, and structural components. Replace if stripped, missing, or damaged.