Parts for Mtd 13BL78ST299: Mower Deck / Spindle Pulley Parts

Replace your cracked or broken lawn tractor discharge chute assembly. Mounts to the mower deck to direct grass clippings away from the cutting area.

Seat wiring harness jumper for front-engine lawn tractors. Connects seat safety switch to electrical system. Replace if frayed, damaged, or corroded.

Deck brake assembly stops mower blades safely when disengaged. Fixes blades that won't stop spinning or take too long to halt. Moderate DIY repair.

Deck won't stop spinning after disengaging blades? This lawn tractor deck brake assembly stops mower deck rotation for safe operation and blade changes.

Complete mower deck assembly for lawn tractors. Includes all necessary components to replace a cracked, damaged, or worn deck housing. Direct replacement.

The replacement screw seen here is made from high-quality, durable metal. It is an identical replacement for a faulty screw in many types of lawn and garden equipment. The screw features a hex-bolt shaped head and is used for various applications in the m

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

This is a genuine replacement bolt that is designed specifically for use on select lawn tractors. This tractor bolt is a specialty piece of hardware designed for use on the steering segment gear. This screw holds the gear in place and is exposed to consta

There are multiple uses for the 5/16-18 Hex Screw. It is often used with small gasoline-powered yard equipment such as lawn and garden machines. While hex screws such as these may be used in edgers and snowblowers, the most frequent use this screw is in y

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

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

Flat washer for lawn tractors and outdoor power equipment. Increases screw bearing surface area. Replace if worn, damaged, or missing during repairs.

Hex screw for lawn tractors and garden equipment. Replaces missing, loose, or deteriorated fasteners in various mounting applications across the machine.

Carriage bolt for riding mowers and lawn tractors. Secures deck components and structural parts. Replace if bolt is stripped, broken, or missing.

Replace a missing, damaged, or worn push nut on your lawn tractor or riding mower. This fastener securely holds parts in place during operation.

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

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 t

Replaces a stripped, damaged, or missing 5/8" hex flange nut on your lawn mower or snow thrower. Secures blades and other components with integrated washer.

Replacement hex nut for riding mowers and lawn tractors. Secures components together throughout the equipment. Replace when stripped, missing, or damaged.

Split pin fastener for lawn tractors and outdoor power equipment. Secures axles, linkages, and moving parts. Replace when bent, missing, or corroded.

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

Deck height adjustment gear for lawn tractors and riding mowers. Replaces broken or worn gears that control cutting deck position and leveling.

Nozzle adapter for lawn tractors and riding mowers. Connects hoses or tubes in the fuel or deck wash system. Replace if cracked, stripped, or missing.

If your mower belt is exposed to debris or weather damage, this deck belt cover shields it from impact and extends belt life. Plastic cover snaps on easily.

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

Compression spring for riding mowers and lawn tractors. Replace if spring is broken, stretched, or missing to restore proper component tension and fit.

Torsion spring for lawn tractors. Attaches to components to exert force for proper operation. Replace if broken, cracked, or missing.

This replacement part is an extension spring. This is a genuine replacement part made by MTD. This part is an important part of many types of appliances. Extension springs ensure that torque and other forces allow the engine to run smoothly.A new extensio

5-inch diameter deck roller wheel for lawn tractors and riding mowers. Replaces cracked, worn, or missing deck wheels that support smooth cutting deck operation.

Rubber hood bumper installs between hood and dash panel on lawn tractors. Replace if original is cracked, missing, or worn to prevent metal-to-metal contact.

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 hous

Replace a missing, stripped, or damaged shoulder screw on your lawn mower or tractor. This fastener secures components and maintains proper alignment.

This flat washer is used to attach the idler pulley in a number of small and medium sized gasoline powered engines. These engines include snow blowers, log splitters, riding mowers, lawn tractors, and chippers. Because the idler pulley is subject to a gre

This is a shoulder screw commonly used as a replacement for use with lawn tractors and mowers. This screw is used to secure the grille's pivot bracket on the machine. If the screw is damaged, it could be difficult to use the grille on the tractor. Replace

This cap pulley is a genuine MTD part that is manufactured for compatibility with lawn tractors. On a lawn tractor, the cap pulley, or pulley cap, along with the idler arm and idler arm spring, create tension on the deck drive belt which allows it to oper

Shoulder spacer for lawn tractors and riding mowers. Installs to maintain proper spacing between components. Replace if worn, damaged, or missing.

Shield mounting screw for lawn mowers and tractors. Secures protective shields and covers. Replace if stripped, missing, or damaged during maintenance.

Shoulder bolt for riding mowers and lawn tractors. Used as an axle for wheels and deck components. Replace if bent, worn, or stripped from regular use.

Replace worn blades causing uneven cuts or poor grass discharge. High lift blade creates suction for better clipping removal in deep or wet grass.

Belt keeper rod guides and positions drive belts near the engine pulley. Replace if bent, damaged, or causing belt slippage. Verify fit with model number.

Front deck lift rod for lawn tractors and riding mowers. Connects mower deck to lift mechanism. Replace if bent, damaged, or corroded for proper operation.

Belt keeper rod for lawn tractors. Holds drive belt in proper position to prevent slippage and maintain tension. Replace if bent or damaged. Verify fit with your model number before ordering.

Deck release pin secures the mower deck to the tractor frame. Replace if bent, broken, or missing to properly attach and support your cutting deck assembly.

Hex cap screw for securing components on lawn mowers, tractors, and outdoor power equipment. Replace if stripped, rusted, or missing hardware.

Belt guide ensures proper belt alignment on your lawn tractor. Replace if belts slip, wear unevenly, or mower performance declines. Confirm fit with model.

Fix wobbling mower blades with this spindle shaft. Common repair for uneven cuts and blade vibration. Moderate DIY with socket set and hammer.

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 pl

Chute hinge pin for lawn tractors and riding mowers. Secures the discharge chute hinge assembly. Replace if bent, broken, or missing to restore proper fit.

This replacement part is a torsion spring and is intended for use in different types of lawn equipment. This is a genuine replacement part made by MTD. This spring is found in different types of lawn mowers and is able to assist other parts working togeth

Fixes belt slipping or falling off on your riding mower. This idler pivot bracket maintains proper belt tension. Moderate DIY difficulty replacement.

Belt guard for 46-inch lawn tractors and riding mowers. Replace if cracked, damaged, or missing to protect belts and ensure safe operation. Verify fit.

Supports the idler pulley to maintain proper belt tension on your lawn tractor. Replace if bracket is bent, cracked, or causing belt slippage issues.

Holds the discharge chute securely in place on your lawn tractor deck. Replace if bracket is cracked, broken, bent, or missing to properly mount the chute.

Deck pulley transfers power to mower blades. Common when blades won't engage or spin unevenly. Straightforward repair for most DIYers with basic tools.

A ball bearing is a common type of rolling-element bearing. It will use balls to keep space between the bearing races and eliminate friction and contact between moving parts. Ball bearings used in lawn and garden equipment ensure that axial loads and radi

Fix a deck that won't lift or adjust properly. This pivot cup lets the lift arm move freely while staying secured to your mower deck. Easy DIY fix.

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