Parts for Mtd 668: Engine Parts

Hex washer screw for lawn tractors and garden equipment. Fastens components together with built-in washer. Replace when stripped, missing, or worn.

Hex screw fastener for securing lawn mower components. Replace if stripped, rusted, or missing to ensure proper assembly and equipment stability.

Tap screw for lawn mowers and tractors. Secures panels, guards, and components. Replace if stripped, rusted, or missing to restore proper assembly.

Cap socket head screw for lawn tractors and riding mowers. Secures panels, housings, and components. Order now to replace missing or stripped screws.

This is a genuine replacement self-tapping hex screw with a blunt nose designed for lawn mowers and lawn tractors. It is used in a variety of locations for the engine assembly of lawn mowers. The self-tapping feature allows the metal screw threads to tightly secure to other metal. The blunt nose requires the use of a pre-drilled pilot hole smaller than the diameter of the screw. These screws do not interchange well. Be sure to check the owner's manual to ensure the correct part number. The hex head needs a socket wrench for the easiest removal and replacement. When removing this type of screw, stripped threads can occur. If this happens, use a screw of the same type in a slightly larger size to accommodate for the damage. Typically, this type of screw would need to be replaced when removed to access another part of the lawn mower for replacement, such as the carburetor. This an OEM part sourced directly from the manufacturer and is sold individually. This screw fits products by Bolens, Brute, Columbia, County Line, Craftsman, Cub Cadet, Huskee, Huskee Supreme, MTD Black, MTD Gold, Mastercut, Murray, Troy Bilt, Yard Man, & Yard Machines.

Left-hand exhaust pipe for lawn tractors. Directs engine exhaust gases away from the engine. Replace if cracked, rusted, or causing exhaust leaks.

Secures hoses on outdoor power equipment to prevent leaks and maintain proper fluid flow. Replace if loose, corroded, or damaged. Verify fit with your model.

This lock washer is used frequently for a number of applications on power yard equipment. The size, 5/16, is the default for many small engine housing and manifold applications. Lock washers are used with machined bolts to fasten engine blocks to the housing of the equipment being used. The compressed washer is able to handle the constant vibration of the small gasoline engine without losing the seal between the screw or bolt and the housing. Typically these lock washers only need to be replaced when they are misplaced during repairs or when the screws that attach them have to be chiseled or cut away, meaning the washers are destroyed as well. These OEM certified replacement washers have been manufactured to the same specifications as the originals they are replacing. In addition to lawn mowers, lock washers of this type and size are frequently used on blowers, lawn tractors, cultivators, snowblowers, and trimmers. Brands compatible with this type of washer are Murray, Husky, Poulan, Bolens, Yard-Man, Cub Cadet, Troy-Bilt, Yard Machines, MTD, and Ryobi.

This casing clamp is a genuine MTD part, sold individually. This casing clamp can be used as a replacement part in lawn mowers, snowblowers, and tillers. The purpose of a casing clamp for one of these outdoor appliances is to affix the governor control plate to the tank assembly so that it remains stably placed throughout the standard operation of the appliance.If the casing clamp is subject to damage in the form of puncturing, denting, cracking, warping, or eroding over time, it should be removed and replaced by this genuine OEM replacement part.This is a genuine OEM replacement part sourced directly from the manufacturer. It is sold individually. This casing clamp is compatible with the following outdoor appliance brands: MTD, Craftsman, Ryobi, Cub Cadet, Troy-Bilt, Murray, Yard Machines, Huskee, Montgomery Wards, Yard Man, Bolens, and MasterCut.

Muffler deflector shield for lawn tractors and riding mowers. Protects surrounding components from exhaust heat. Replace if cracked, bent, or missing.

Exhaust muffler for lawn mowers and tractors. Reduces engine noise during operation. Replace if cracked, rusted, or excessively loud from wear or damage.

Right-side exhaust pipe for lawn tractors and mowers. Replace if cracked, rusted, or leaking. Directs engine exhaust safely away from the mowing deck.

Oil draining slowly or leaking during changes? This oil drain valve ensures quick, clean oil changes on your lawn mower. Simple DIY install in minutes.

Oil draining slowly or leaking during changes? This oil drain valve ensures quick, clean oil changes on your lawn mower. Simple DIY install in minutes.

This is a quality muffler bracket that is made for use with lawn tractors and lawnmowers by several manufacturers. This part is located on the muffler and acts as a protective component to prevent damage to the muffler on the lawn and garden equipment. The muffler bracket is made of durable plastic but can be damaged or break. When this occurs, it will need to be replaced to ensure the muffler does not become damaged.When replacing the muffler bracket, a screwdriver and work gloves will be needed. Make sure the lawnmower is powered off and on a level surface before disconnecting the spark plug wire. This will ensure the process is safe and there is no chance of the tool powering on. The original muffler guard can be unscrewed from the tool before using the same screws to put the new component in place. Replace the spark plug wire before use.This muffler bracket is sold as a single part. It is a genuine OEM replacement part that is directly sourced from the manufacturer. The part is made to be compatible with lawnmowers and lawn tractors created by MTD, Bolens, Yard Machines, Troy-Bilt, and Yard-Man.

Oil drain sleeve fastener for lawn tractors and riding mowers. Secures the oil drain system. Replace if cracked, stripped, or missing for proper fit.

This muffler is a genuine OEM replacement part sourced directly from the manufacturer for use on lawn and garden equipment. It reduces the noise coming from the exhaust. Being a metal part exposed to the elements, it is not uncommon for mufflers to corrode over time and need replacement. As a lawnmower part, the muffler may sustain damage from debris in the yard while mowing. In either case, the muffler should be removed and replaced to keep the noise level to a minimum.The engine and damaged muffler should be cool to the touch before repairing the lawnmower. Wear work gloves and safety goggles. Remove the spark plug from the lawnmower for extra safety. Locate the bolts securing the muffler to the lawnmower and loosen them to remove the muffler. Dispose of the old muffler and align the new muffler with the bolts. Attach the new muffler and tighten the nuts. Put the spark plug back in the lawnmower. This muffler is a high-quality metal part that is individually sold. It does not come with hardware. It is designed for use on lawn mowers and lawn tractors manufactured by MTD, Ryobi, Yard Machines, Bolens, Yard-Man, Troy-Bilt, Poulan, and Husky.

The exhaust systems on lawn and garden equipment are just as important as those on a vehicle. They need a good seal to prevent a leak between the carburetor and the exhaust tube, which would allow air leakage that could cause performance issues and loud noise. Over time all exhaust gaskets deteriorate and require a full replacement. It is relatively easy to replace an exhaust gasket and requires only the use of screw drivers, a socket set or a wrench set depending on the device being service. Replacement components such as sockets or screws may also be required during this repair. The gasket surfaces should be cleaned and fully dried before being installed between the carburetor and the exhaust tube. This exhaust gasket works with Toro, Simplicity, Murray and Briggs & Stratton lawnmowers, generators, snowblowers, wood chippers, and lawn tractors. It also works with equipment made by Craftsman, Husqvarna, Cub Cadet, Poulan, Wheel Horse, MTD, Ariens, and more.

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

Replacement hex bolt for lawn mowers and outdoor power equipment. Secures components throughout the machine. Replace when stripped, broken, or missing.

Belt guard pin secures the protective cover over drive belts on lawn tractors. Replace if broken, bent, or missing to keep belt guard properly attached. Verify fit with your model number.

Flat washer for lawn tractors and riding mowers. Secures bolts and distributes load across assemblies. Replace if worn, corroded, or missing.

Replacement spacer for lawn mowers and tractors. Maintains proper spacing between components. Order a new spacer if yours is missing, damaged, or worn.

Guides and creates tension for engine drive belts on your lawn tractor. Replace if worn or belt squealing occurs. Verify fit with your model number.

Exhaust pipe for lawn tractors. Directs engine exhaust gases away from the operator. Replace if cracked, rusted, or damaged to prevent fumes.

This is a seven-inch cable tie that is used with different types of lawn and garden equipment. It is most commonly used to secure the cable onto the handle of the lawnmower or tiller so it is secure. The cable tie is made of durable plastic but can be damaged or break. When this happens, the tie will need to be replaced to ensure the cable stays on the handle.If the cable tie needs to be replaced, no tools are needed. In the situation where other parts need to be replaced at the same time, a basic set of tools and a pair of work gloves may be required. Turn off the yard equipment and place it on a stable surface before replacing the broken cable tie. The old tie can be removed so the new one can be installed before further use.This cable tie is an authentic OEM replacement part that is directly sourced from the manufacturer. This product is sold individually. The component is designed to be compatible with lawnmowers, lawn tractors, tillers, and snowblowers manufactured by MTD, Troy-Bilt, Yard-Man, and Yard Machines.

Replace your lawn tractor exhaust pipe if you notice loud engine noise, exhaust fumes near the operator, or visible cracks. Direct-fit part for proper ventilation.