Parts for Mtd 13AL78ST099: Battery / Frame Parts

Deck lift shift assembly for lawn tractors. Mounts to the control panel area to adjust mowing height. Replace if lever is cracked, broken, or missing.

This is a flanged lock nut. It’s designed to apply tension, typically on a joint that needs to have a certain amount of flex. As such, it’s mostly used on snowblower chutes and lawnmower handles. They can remain in place, but with a forgiving connection that can take a beating. The nut size is 3/8, with a thread size of 16. A lock nut will generally last for many years. However, the silicone ring inside will wear down if it’s frequently tightened and loosened. It needs to be replaced when it will no longer reliably remain in place. Generally, this begins as a symptom of slight slippage and worsens as time goes on. Thankfully, whether it’s being used on a snowblower or a lawnmower, this nut is generally straightforward to access. Simply unscrew the old nut, then screw the new nut on until it’s nice and tight. Our flanged lock nuts are genuine OEM MTD nuts, and they are sold individually.

Replace a faulty main wiring harness if your lawn tractor won't start, has electrical issues, or shows intermittent power loss. Direct fit part.

Secures pins and shafts on lawn tractors and riding mowers. Replace if bent, missing, or worn. Bow-tie design inserts through pre-drilled holes.

E-ring retaining clip for lawn tractors and riding mowers. Secures components on shafts and axles. Replace when missing, bent, or worn for proper fit.

Torsion spring for lawn tractor mower deck lift system. Replaces broken, stretched, or missing springs that no longer hold deck tension properly.

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.

Deck lift rod for lawn tractors. Connects cutting deck to lift mechanism. Replace if bent, broken, or corroded to restore proper deck height adjustment.

Deck lift link for riding mowers and lawn tractors. Connects the deck height adjustment lever to the mower deck. Replace if bent, broken, or worn.

PTO engagement handle assembly for lawn tractors. Mounts to control panel for blade engagement. Replace if handle is cracked, broken, or missing.

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

Replacement steering control handle grip for lawn tractors and riding mowers. Restores comfortable steering when original grip is cracked, worn, or missing.

Extension spring for lawn tractors and tillers. Replaces worn, broken, or missing springs. Essential structural component for proper equipment operation.

Loose or missing hardware causing vibration or rattling? This 7/16 lock washer secures critical components on lawn tractors and riding mowers.

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

Shoulder screw for riding mowers and lawn tractors. Replaces worn, stripped, or missing shoulder screws in various mounting locations.

PTO bearing for lawn tractors and riding mowers. Replace when you hear grinding noise or experience power transfer issues. Verify fit with your model.

The cable seen here is an authentic replacement that is sourced from the manufacturer. This control cable is used for lawn mowers. It will pivot to pull the belt idler pulley, which will fasten the belt and spin the mower's cutting blades. When the cable is not working properly, it could mean that the blades will not spin properly and not provide the mower with the cutting capability that it should have. The cable that comes with the mower tends to be durable, but this does not mean that it will not need to be replaced at some point. Many things could happen to the cable that would require a replacement. The spring might start to wear out, for example. The cable could become frayed or corroded, as well. Owners should always make sure they are wearing gloves when replacing this part. They will need a screwdriver and pliers to complete the repair. The cable is a genuine OEM replacement part that is sold individually. This cable will work with more than 130 models of mowers. Brands with compatible models include Craftsman, Troy-Bilt, Murray, Yard Machines, MTD, Huskee, Bolens, Yard-Man, and MasterCut.

Replace a worn or broken engine pulley causing belt slippage or poor blade engagement. Direct-fit engine pulley for lawn tractors and riding mowers.

Mounting bracket assembly for lawn tractors. Secures and connects components to the frame. Replace if cracked, bent, or broken to restore stability.

Hex head self-tapping screw for outdoor power equipment. Securely fastens components throughout your machine. Replace if missing, stripped, or worn.

Mounting bracket for lawn tractor running board assembly. Secures the step platform to the frame. Replace if bent, cracked, or rusted to restore stability.

Metal carriage bolt with round head and threaded shank for lawn mowers and snow blowers. Replaces broken or missing hardware during repairs or assembly.

This is a hex screw used on a variety of types of lawn and garden equipment. On large machinery, it is often used to mount the gas tank. On smaller items, it tends to be used to clamp the housing together. It can secure items like plastic, metal, brick, and wood together. It measures 5/16-18 x .75 inches and is made of durable metal. In some cases, the screw can become damaged, broken, or stripped, which means it needs to be replaced.A visual inspection will indicate whether the screw is damaged. If it needs to be replaced, a hex wrench can be used to remove it from the equipment. Afterward, the replacement hex screw can be installed with the wrench before being tightened to ensure materials hold together well.This hex screw is a genuine OEM part that is sold individually. It is sourced directly from the manufacturer. The hex screw is compatible with lawnmowers, wood chippers, log splitters, snowblowers, chainsaws, edgers, tillers, leaf blowers, and string trimmers by Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Husky, Broan, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Turf King, Yard-Man, and MasterCut.

Flange lock nut secures components on mowers and outdoor power equipment. Replace if stripped, corroded, or missing to restore proper fastening.

A flange lock nut, also known as a flange lock or a lock nut, is created to be used in various types of lawn and garden equipment. This flange lock nut holds other parts in place and, when properly threaded, will resist loosening. Over time, a flange lock nut may begin to weaken and may become loose or break. If it appears to be broken or weak, a replacement is required. Flange locks can be adjusted and uninstalled after use. When replacement is required, you may need a socket set, screwdriver, hacksaw, and butane torch. The socket wrench will loosen the bolt it is connected to, while the torch is used to heat the lock nut. A socket wrench may remove the nut, but sometimes cutting it with a hacksaw is required. This flange lock nut is a genuine OEM component directly from the manufacturer and comes in an individual unit. It is made of metal, a gold color, and can be found in various areas of lawn equipment. It works with lawnmowers, trimmers, snowblowers, cultivators, tillers, and leaf blowers by Poulan, MTD, Toro, Cub Cadet, Murray, Troy-Bilt, Bolens, Yard Machines, Craftsman, and Yard-Man.

Secures hardware, handles, and connections on lawn equipment. Replace if stripped, corroded, or missing. Standard hex nut for various outdoor models.

Flat washer for lawn tractors and outdoor power equipment. Replace if washer is missing, worn, or damaged during maintenance or repair work.

Flat washer for lawn mowers and tractors. Replace if missing, corroded, or damaged during maintenance. Ensures secure fastening of components.

Secures the battery in place on your lawn tractor. Replace this brace if it's cracked, broken, or missing to prevent battery movement and ensure stable connections.

Battery does NOT contain battery acid

Battery hold down rod assembly for lawn tractors. Secures battery in place. Replace if bent, broken, corroded, or missing to properly mount battery.

Mower won't start even with brake engaged? A faulty interlock switch blocks current to the starter. This safety switch replacement restores starting function.

Replace cracked or deteriorated vent hose on your lawn tractor or riding mower. This 3/16" ID hose connects fuel tank ventilation components.