Keeping your Troy-Bilt lawn mower running smoothly means tackling wear and tear with reliable replacement parts.
Components such as the air filter, spindle blade nut, and recoil starter are continually exposed to heat, moisture, and debris, which leads to deterioration over time.
When these crucial parts fail, you may experience safety hazards, starting issues, or uneven cuts—making prompt and proactive maintenance absolutely crucial.
To deliver lasting repairs, we prioritized parts built for rugged durability and exact fitment. Our comprehensive analysis focused on models that meet OEM (Original Equipment Manufacturer) standards and utilize high-grade materials that can endure demanding mowing conditions.
For peak performance, consider upgrading to the best Troy-Bilt carburetor replacements and mower blades that help ensure strong engine function and clean, efficient cutting.
If you’re facing restricted airflow or ignition troubles, trusted solutions we recommend include recoil starter assemblies, air filter kits, and Troy-Bilt spark plugs.
These components help restore your mower’s power and reliability, allowing you to maintain a pristine lawn with confidence.
1. 9 Pcs Spindle Blade Nut – Best Overall
This abundant nine-piece set solves one of mowing’s most common frustrations: stripping or misplacing the single nut that holds the blade in place.
Crafted from durable steel, these hex flange nuts provide the robust tightening effect necessary to ensure your mower blades operate safely and smoothly.
This multipack is a fundamental Troy-Bilt lawn mower replacement part designed for preparation and routine maintenance, unlike specialized repair items.
The steel construction holds up to high torque, preventing the dreaded rounding-off that plagues lesser quality hardware.
Having this multipack on hand transforms a potential project-stopping issue into a minor inconvenience. The nuts boast wide compatibility across MTD-family brands, including Cub Cadet, MTD, Craftsman, and Troy Bilt.
This bulk pack offers far greater long-term utility and value than repeatedly buying single, over-packaged nuts from a big-box store.
Key Features
- Abundant 9-piece package quantity.
- Durable steel material construction.
- Precise threading at 5/8″-18 thread size.
- Compatible with MTD, Cub Cadet, Craftsman, and Troy Bilt.
| Pros | Cons |
|---|---|
| Bulk 9-pack provides excellent value | Basic component, not for major repair |
| High-quality steel resists rounding-off | No other hardware included |
| Wide compatibility across MTD-family brands | |
| Precise threading ensures secure blade fastening |
2. Throttle Cable 946-04661A
Best for: Budget Friendly
The XIKOBY 946-04661A control cable is an essential fix for a non-engaging or sluggish engine, restoring crisp responsiveness to your self-propelled mower. This part masterfully addresses the common failure point of a snapped or stretched throttle cable.
Engineered with a 51-inch total length and durable Z-type bends on both ends, it serves as a perfect-fit replacement for a huge range of mowers, including the popular Troy Bilt TB110 models.
The thoughtful inclusion of zip-ties simplifies the process, ensuring a secure and clean installation.
The 37.5-inch conduit length provides the correct amount of slack required for routing along the mower handle without kinking or binding, a critical detail for smooth operation.
This cable corrects the internal mechanical linkage that controls the engine, unlike the Bail Operator, which fixes a physical interface failure. The cable’s construction uses durable rubber and stainless steel materials.
Key Features
- 51-inch total cable length.
- 37-1/2-inch conduit length.
- Constructed from durable rubber and stainless steel.
- Replaces part numbers 746-04661, 946-04661, and 746-04661A.
| Pros | Cons |
|---|---|
| Perfect fit for models like Troy Bilt TB110 | Specific application to engine controls |
| Includes zip-ties for installation | Requires careful routing along handle |
| Durable Z-bends enhance longevity | |
| Immediately restores engine responsiveness |
3. Bail Operator 747-05214D
Best for: Handle Repair
Instantly restore the most critical operational and safety feature of your push mower with the BERPSE 747-05214D Bail Operator.
This handle actuator is the definitive fix for a bent, broken, or missing engine-kill bar—a common failure that renders a mower completely useless.
Its precise geometry and vibrant red finish make it a direct, drop-in replacement for dozens of MTD, Craftsman, and Troy-Bilt models, eliminating any guesswork from the repair.
For homeowners facing a mower that refuses to stay running, this part is the simple solution that allows you to get back to cutting grass in minutes.
Once installed, the BERPSE bail handle provides the correct tension to keep the engine running smoothly when held and to stop it immediately upon release.
This component is a fundamental safety component that ensures your machine operates as it was designed to. It is the necessary repair if the mower’s handle itself is snapped, offering a comprehensive fix for physical damage.
Key Features
- Red bail handle is a direct replacement for model 747-05214D.
- Compatible with MTD, Troy-Bilt, Craftsman, and Ryobi brands.
- Fits Troy-Bilt models TB110, TB130, TB210, and TB270ES.
- Acts as the primary user engagement and safety switch.
| Pros | Cons |
|---|---|
| Direct OEM fit ensures reliable installation | Only fits specific models (e.g., TB110, TB130) |
| Critical safety part for engine kill switch | Handle only, no mounting hardware |
| Easy installation requires minimal tools | |
| Sturdy construction resists wear |
4. Side Discharge Chute 731-07486
Best for: Discharge Option
Unleash your mower’s full potential with this essential 731-07486 Side Discharge Chute, designed to restore a key cutting function to your machine.
This component is the perfect solution for anyone who has lost or broken their original chute, which otherwise forces them to mulch or bag.
With an 11-inch hypotenuse length, it is engineered to fit a massive range of 21-inch push mowers, including many popular Troy-Bilt TB110 and TB130 models.
It effectively directs clippings away from the deck, ensuring a cleaner cut and preventing clumping, especially in taller, thicker grass. The chute attaches easily in practice, although you must reuse your original mounting hardware.
This simple component is one of those crucial Troy-Bilt lawn mower replacement parts that dramatically improves the efficiency and quality of your mow under specific conditions.
While a functional wheel is essential for movement, this chute is about optimizing the result of the mow by managing clippings effectively. This durable plastic chute offers functional value for users needing versatility beyond mulching.
Key Features
- Dimensions are 11 inches (hypotenuse) and 3.4 inches (height).
- Directly replaces part number 731-07486.
- Constructed from durable plastic.
- Wide compatibility across Craftsman, Columbia, Huskee, and Troy-Bilt.
| Pros | Cons |
|---|---|
| Restores full side discharge capability | Hardware not included (must reuse screws) |
| Prevents deck clumping in heavy grass | Can be bulky for storage |
| Wide compatibility across MTD brands | |
| Improves efficiency in specific mowing conditions |
5. 8″ Front Drive Wheel 2 Pcs
Best for: Wheel Replacement
Effortlessly glide across your lawn again with the CheeMuii 734-04018 replacement wheels, a robust solution for broken or worn-out front wheels.
This two-pack directly addresses the wobbling, dragging, and uneven cutting that results from degraded front wheels on self-propelled mowers.
Featuring an 8-inch diameter and a 2-1/8-inch width, these wheels are constructed with a durable plastic core and a solid rubber tread for superior traction and longevity.
The 1/2-inch bore ensures a perfect, snug fit on a wide array of Troy-Bilt models, including the hard-working TB240.
The aggressive tread pattern grips damp grass effectively, preventing the front end of the mower from slipping or sliding on inclines.
Replacing bald or cracked original wheels instantly improves the mower’s maneuverability and helps maintain a consistent cutting height, enhancing the final look of your lawn.
Worn wheels represent a mobility system failure, making the job frustrating and producing poor results.
Key Features
- 8-inch diameter and 2-1/8-inch width.
- Constructed from high-quality plastics and solid rubber.
- Features a 1/2-inch bore for a snug fit.
- Aggressive tread pattern ensures superior traction.
| Pros | Cons |
|---|---|
| Excellent traction on uneven and damp terrain | Sold as wheels only |
| Smooth rolling restores maneuverability | Utilizes plastic hubs |
| Durable rubber and plastic materials | |
| Perfect OEM fit for models like Troy Bilt TB240 |
6. Recoil Starter 591139
Best for: Engine Start Solution
Bring your dead mower roaring back to life with this complete 591139 Recoil Starter Assembly. This is the ultimate fix for the dreaded snapped pull cord or a recoil spring that refuses to retract, problems that can instantly sideline your mower.
Designed as a direct replacement for Briggs & Stratton 593959 and 591139, it fits a massive range of popular 140cc and 150cc engines commonly found on Troy-Bilt, Craftsman, and Yard Machines mowers.
Crucially, the entire assembly comes ready to install, saving you the immense frustration of trying to re-wind a powerful spring by hand. Installation is simple; unbolt the old unit and screw the new one into place, fully restoring your starting mechanism within minutes.
The retractable cord mechanism feels smooth and responsive, engaging the engine flywheel with decisive force.
This starter solves an acute, job-stopping failure, acting as an emergency mechanical repair rather than preventative care. It is built with premium plastic and metal components and often includes a 12-month warranty.
Key Features
- Complete pull start assembly.
- Designed as a direct replacement for Briggs & Stratton 593959.
- Fits B&S 450E through 625EX push mower engines.
- Comes pre-wound and ready to install.
| Pros | Cons |
|---|---|
| Complete assembly—no spring winding required | Housing is constructed of plastic |
| Easy bolt-on installation | Specific fitment to B&S engines |
| Wide engine compatibility (140cc-150cc) | |
| Often includes a 12-month warranty |
7. Blade Adapter Kit 23MM
Best for: Blade Compatibility Upgrade
Recover from a catastrophic blade impact with this indispensable Lawn Mower Blade Adapter Kit. This component is critical because it links the blade to the engine crankshaft and is specifically designed to be the failure point to protect your expensive engine from severe damage.
This all-in-one kit includes the star-patterned 748-0376E adapter with a 23MM center hole, the 710-1044 hex bolt, and the 736-0524B bell support washer.
This is the complete solution for when you hit an object and your blade stops spinning true, potentially saving your mower from the scrap heap.
The kit is a massive time-saver, ensuring you achieve the correct clamping force with new, unstressed hardware. A damaged adapter can cause dangerous vibrations and poor cut quality.
This kit addresses a much more severe issue than routine fastener replacement, as it is designed for rebuilding the entire blade mount assembly after a significant impact. It fits snugly onto the crankshaft of many MTD, Troy-Bilt, and Ryobi push walk-behind mowers.
Key Features
- Includes the adapter, hex bolt, and bell support washer.
- Features a specific 23MM center hole size.
- Replaces multiple MTD part numbers (710-1044, 736-0524B, 748-0376E).
- Designed to protect the engine crankshaft from impact damage.
| Pros | Cons |
|---|---|
| Complete 3-piece kit saves time | Specific 23MM size may limit fitment |
| Protects engine internals from impact | Requires complete blade removal for installation |
| Restores stability and prevents dangerous vibration | |
| Fits many MTD-family brands (Troy-Bilt, Bolens) |
8. Air Filter with Spark Plug
Best for: Maintenance Combo
Execute a complete engine tune-up with one convenient package using this comprehensive maintenance kit.
This bundle is intelligently curated to provide everything needed for an annual service on popular Briggs and Stratton engines, including the workhorse 550ex and 675exi series.
The kit is highly compatible with Troy-Bilt TB110, TB230, TB330, and TB370 models. Included components are a high-quality 593260 air filter, a fresh spark plug, two oil filters, and a fuel line complete with clamps (buckles).
This is the perfect all-in-one solution for proactive owners looking to boost engine efficiency, extend the life of their mower, and ensure reliable starting.
The components fit and perform just like their OEM counterparts. The air filter uses high-quality paper and a pliable rubber seal to effectively trap dust and debris, protecting the engine internals.
This kit is a complete seasonal overhaul solution, superior for those performing a full tune-up on a mower like the Troy-Bilt TB200.
Key Features
- Includes air filter, spark plug, two oil filters, and fuel line.
- Compatible with Briggs & Stratton 593260 series engines.
- Uses high-quality rubber and filter paper material.
- Designed to improve engine performance and ensure reliable starting.
| Pros | Cons |
|---|---|
| All-in-one tune-up kit offers convenience | May include parts you do not need |
| Enhances performance by addressing air/ignition | Engine oil is not included |
| Wide B&S compatibility with popular Troy-Bilt models | |
| Great value compared to buying individual parts |
9. Air Filter 491588S 2 Pack
Best for: Value Air Filter
Maximize your engine’s breathing room and efficiency with the Harbot 491588S Air Filter two-pack. This replacement part is a targeted upgrade for mowers running roughly due to a dirty or clogged air filter—a common and easily fixable problem.
Engineered for a perfect fit in 3.5-6.5 HP Quantum engines, this flat cartridge filter boasts an impressive 99% filtration efficiency.
The highly elastic polyurethane seal creates a tight fit within the housing, preventing unfiltered air from bypassing the element and ensuring your Troy-Bilt TB110 or TB230 engine is protected from harmful debris.
The benefit of replacing a clogged filter is immediate: the engine idles smoother, starts easier, and delivers more consistent power under load.
With dimensions of 5-3/16″ L x 4-1/2″ W x 13/16″ H, it drops right into place with no tools required, making it one of the simplest maintenance tasks you can perform.
This two-pack is the more economical choice if you only need air filtration, providing a dedicated, high-quality component.
Key Features
- Provides high-efficiency filtration (99%).
- Comes in a convenient value two-pack.
- Features a polyurethane seal for a tight fit.
- Designed for 3.5-6.5 HP Quantum engines.
| Pros | Cons |
|---|---|
| High-efficiency filtration protects the engine | Filter only; excludes spark plug or oil |
| Value two-pack prepared for next service | Not for all engines (specific to Quantum) |
| Perfect polyurethane seal ensures tight fit | |
| Easy 5-minute, tool-free installation |
10. Steering Service Kit 753-11064B
Best for: Steering Repair
The Steering Service Kit 753-11064B is a critical package designed to restore smooth and accurate handling to your Troy-Bilt, MTD, or Cub Cadet equipment.
This kit addresses the complex failures often associated with steering components that lead to wobbling or difficulty turning, ensuring your machine remains fully maneuverable.
The kit is a preferred option for users looking to make complex repairs more manageable, as it comes with all the needed components, such as brackets, pins, and nuts, for a complete fix.
It is known to replace multiple part numbers, offering broad compatibility across several MTD-family brands. The kit features durable metal construction, promoting longevity and reliable performance under challenging operating conditions.
Users appreciate opting for kits like this because they save time versus needing to track down and purchase individual fasteners and components separately.
This provides superior value and ensures that all necessary hardware is included and correctly matched for the repair, a detail particularly important for steering mechanisms where integrity and tight fitment are paramount for safety and function.
Key Features
- Durable metal construction.
- Replaces multiple OEM part numbers.
- Includes all necessary components (pins, nuts, brackets).
- Compatible with Troy-Bilt, MTD, and Cub Cadet.
| Pros | Cons |
|---|---|
| Replaces multiple part numbers for broad use | Higher estimated price range than simple consumables |
| Includes multiple components for complete repair | |
| Easy to install thanks to included parts | |
| Durable metal construction ensures longevity |