Keeping your Toro lawn mower in peak condition requires using the right replacement parts, which can be challenging when seeking components that are both durable and compatible.
Using incorrect or low-quality parts can lead to potential safety risks, increased wear, and poor cutting performance, especially with critical components like blades, belts, and drive systems.
We analyzed thousands of user reviews and cross-referenced Original Equipment Manufacturer (OEM) specifications to identify the most dependable options for maintaining your Toro mower.
Combining high-quality aftermarket alternatives with genuine Toro parts ensures optimal reliability and value, keeping your mower running efficiently season after season.
1. UDC 2-Pack Gator Mulching Blades – Best Value Set
Unleash a pristine, healthier cut with this two-pack of UDC Gator Mulching Blades. These blades are a significant upgrade for any 22-inch Toro Recycler, solving the common issue of a ragged, uneven cut caused by dull blades.
The specialized gator-tooth design is engineered to excel at finely chopping clippings, which promotes better lawn health by returning vital nutrients to the soil.
With a length of 21-11/16 inches and an aggressive airlift design, they create a powerful vortex under the deck, lifting the grass for a sharp, clean cut before mulching it into fine particles.
These blades are compatible with a wide array of models, including numerous Toro Recycler models (20001–21485). The cutting edge arrives pre-sharpened, covered by paint that serves as a safety feature during installation but wears away quickly upon use.
This two-pack offers excellent value, providing a spare for quick mid-season performance maintenance. For the homeowner focused on lawn health, these UDC mulching blades offer a superior cutting solution compared to standard accessories.
Key Features
- 21-11/16″ length designed for 22″ deck size.
- Features a specialized gator-tooth design for enhanced mulching performance.
- Replaces a wide range of OEM parts for extensive compatibility.
- Center hole size is 7/16″ and side hole size is 3/8″.
Pros
- Enhanced Mulching.
- Value Two-Pack.
- Wide Compatibility.
- Sharp Cutting Edge.
Cons
- Aftermarket Brand.
- Paint on Edge (Wears away quickly).
2. DECKMAN Side Discharge Chute 115-8447 – Best for Discharge Option
The DECKMAN 115-8447 Side Discharge Chute allows you to effortlessly adapt to various mowing conditions.
This essential accessory provides the necessary versatility to switch from mulching to side-discharging, which is crucial when tackling tough tasks like overgrown or damp grass.
It directly solves the frustrating problem of a clogged deck, allowing the operator to power through heavy jobs without constantly stopping to clear clippings.
This component is a direct-fit part designed for a range of 22-inch Recycler models manufactured between 2009 and 2015, ensuring a straightforward and secure installation.
Made from durable plastic construction, it is engineered to withstand impacts from debris while effectively directing the flow of grass away from the operator.
In practice, the chute channels clippings into a neat row, simplifying cleanup and preventing the engine from bogging down in heavy conditions.
This discharge chute, while serving a different purpose than a mandatory safety item like the trailing shield flap, is the ideal replacement for users needing to add functional versatility to their mower for challenging lawn conditions.
Key Features
- Part Number 115-8447.
- Direct-fit component for 22″ Recycler models.
- Compatible with Toro models 20330, 20331, 20370, and others.
- Model Years 2009–2015.
Pros
- Adds Versatility for various grass conditions.
- Direct Fit.
- Easy Installation.
Cons
- Plastic Construction.
- Limited Model Years (2009–2015).
3. 117-1018 V-Belt Deck Drive – Best Budget Replacement
Restore the drive functionality of your mower quickly and affordably with the 117-1018 V-Belt Replacement.
This V-belt is the critical link that transfers power to the wheels, and a stretched or broken belt is frequently the reason a self-propel system fails.
As a direct replacement component, it offers the go-to solution for getting your mower’s propulsion system back online.
The belt features precise dimensions of 32-3/8 inches in length and 3/8 inch in width, engineered to provide the exact tension required for compatibility with models like the Toro 20330 and 20351.
Proper fit is crucial for a drive belt, as incorrect tension can cause slippage or premature wear on the transmission pulley. This replacement ensures a snug fit, effectively restoring the crisp engagement of the self-propel drive.
This V-belt is the foundational component of the drive system, working alongside the more complex Toro 106-3956 Transmission.
For anyone experiencing drive failure, replacing this belt is a cost-effective and logical first step before considering a full transmission swap. It is one of the key wear components that needs frequent replacement.
Key Features
- Part Number 117-1018.
- Length is 32-3/8 inches and width is 3/8 inch.
- Restores function to the self-propel drive system.
- Compatible with Toro 20330, 20331, 20350, and 20351.
Pros
- Restores Propulsion.
- Precise Fit and tension.
- Budget-Friendly Fix.
Cons
- Regular Wear Item.
- Requires Tools for proper replacement.
4. Recoil Starter for Kohler Toro Engines – Best for Engine Start Repair
Solve one of the most frustrating common mower problems in minutes—a snapped pull cord or a failed retraction spring—with this complete recoil starter assembly.
This assembly is the ultimate fix for bringing your engine roaring back to life. Designed specifically for Kohler XT series engines (XT675, XT650, XT775, XT800) found on many Toro mowers, this component eliminates the dangerous and difficult task of winding a new spring.
The true value of this part lies in its all-in-one design: rather than struggling with individual components, you simply unbolt the old housing and install this new one.
This replacement, which replaces part numbers like 1416520-S, provides a direct OEM fit and ensures strong, smooth cord retraction, guaranteeing a reliable start for your 149cc or 173cc engine every time.
This engine-critical part is a higher priority repair than mobility components like wheels; while worn wheels make mowing difficult, a broken starter makes it impossible. This assembly provides a quick return to full functionality for users whose mower won’t start.
- Key Features
- Complete assembly for direct replacement.
- Replaces part numbers 1416520, 14165 20S, and 1416520-S.
- Designed for Kohler XT series engines (149cc/173cc).
- Direct fit ensures easy installation.
- Pros
- Complete Assembly.
- Simple Installation.
- Wide Engine Fit.
- Cons
- Aftermarket Part.
- Plastic Housing.
5. CheeMuii 8″ Lawn Mower Wheels 2 Pcs – Best Wheel Replacement
Regain smooth and effortless control over your machine with this two-pack of CheeMuii 8-inch front drive wheels. This set is the ideal remedy for mowers suffering from cracked hubs, worn-out treads, or a wobbly, uneven ride.
By restoring crucial traction and stability, these wheels make maneuvering your mower feel factory-new, addressing the pain points of poor grip and difficult turning.
Engineered with a 1/2″ bore size and a 3/4″ hub offset, these wheels are designed as a direct replacement for Toro part 119-0311.
They ensure a perfect fit on a wide array of 22″ self-propelled Recycler mower models, including Toro 20330, 20331, and many others.
The construction uses a combination of durable plastic for the hub and robust rubber for the tread, achieving a great balance of longevity and dependable grip on various terrains.
Installation is a straightforward DIY job that results in immediate improvements in mower handling.
These wheels provide a significant quality-of-life upgrade for users whose engine runs perfectly but struggle to push or steer their machine, differentiating them from engine parts.
Key Features
- Comes as a two-pack.
- Wheel Size 8″ with a 1/2″ bore size.
- Constructed from high-quality plastics and rubber.
- Hub offset is 3/4″.
Pros
- Restores Traction and stability.
- Easy To Install.
- Value Two-Pack.
Cons
- Plastic Hubs.
- Tread Wears Over Time.
6. 115-8420 Trailing Shield Flap – Best Safety Shield
The 115-8420 Trailing Shield Flap is a non-negotiable safety component that prioritizes your protection on every mow. This flap serves as the last line of defense between the operator and high-velocity debris kicked up by the spinning blades.
It is the ideal replacement if your existing shield has become completely detached, brittle, or cracked, as it restores the mower’s original safety specifications.
Made from a durable, flexible material, this shield is specifically designed to withstand constant dragging and impacts without easily breaking.
The product’s size features an upper bottom width of 16-15/16 inches and a lower bottom width of 17-9/16 inches, ensuring complete coverage of the rear discharge opening on compatible 22″ Toro mowers.
This creates an effective curtain that helps prevent projectiles like rocks and twigs from shooting back toward the operator’s feet and legs. Installation is simple using plastic expansion anchors.
Unlike performance-enhancing parts like mulching blades, this shield protects the quality of your health, making it one of the most important replacement parts on the machine, and one that should never be skipped if worn.
Key Features
- Essential safety component that protects against debris shooting back.
- Part Number 115-8420/144-6431.
- Upper bottom size: 16-15/16 inch.
- Simple to install with plastic expansion anchors.
Pros
- Essential Safety Part.
- Durable Material.
- Direct Fit.
Cons
- Can Become Brittle over time.
- No Hardware is included with the flap itself.
7. 12V Battery Replacement 106-8397 – Best Power Solution (168 words)
Ignite your mower with confident push-button starting using this 12-volt replacement battery. This reliable power cell is the essential key to restoring the convenience of an electric start system.
It solves the frustrating and strenuous issue of a dead battery that otherwise forces the user to rely on the manual recoil cord.
Featuring a robust 3.3Ah capacity and 12 Volts, this battery delivers the necessary consistent power for quick, effortless starts throughout the entire mowing season.
Engineered for a perfect fit, its compact dimensions (L- 5.28″ x W- 2.64″ x H- 2.62″) allow it to slide directly into the designated compartment on compatible Toro mowers without requiring any modifications.
Its sealed design means it is maintenance-free, reliably providing cranking amperage without the need to check water levels. The added layer of confidence in its long-term performance is provided by the included two-year warranty.
This battery provides a more impactful convenience upgrade compared to simply replacing the manual recoil starter assembly, allowing the user to restore their mower to its full, convenient potential.
Key Features
- Voltage is 12 Volts with a 3.3Ah capacity.
- Dimensions are 5.28″ L x 2.64″ W x 2.62″ H.
- Features a sealed, maintenance-free design.
- Comes with a 2-Year Free Replacement Warranty.
Pros
- Restores Electric Start convenience.
- Two-Year Warranty.
- Maintenance-Free.
- Precise Fit.
Cons
- Model Specific fit (though replaces many generic part numbers).
- Limited Capacity (3.3Ah).
8. Toro 106-3956 Transmission Assembly – Best Overall (168 words)
The Toro 106-3956 Transmission Assembly is identified as a top pick for seamless drivetrain performance and is designated as the “Best Overall” replacement part.
As a genuine Toro part, this assembly is built to exact specifications, ensuring the highest standards of reliable performance and longevity.
This transmission is the complex heart of the drive operation, working in tandem with the V-belts to deliver power to the wheels.
Using genuine Toro parts for major components like the transmission minimizes the risk of poor function or safety hazards that can arise from incompatible components.
This specific assembly is designed for select 22-inch Recycler Rear Wheel Drive Mowers. Investing in a genuine transmission like the 106-3956 maximizes performance and minimizes the risk of future repairs, which is key to long-term reliability.
While replacing a broken V-belt is the logical first step for drive failure, if the problem persists, upgrading to a genuine transmission ensures the complex mechanical operation of the drivetrain is fully restored.
The reliability of this genuine part is preferred over aftermarket alternatives for critical mechanical functions.
Key Features
- Part number 106-3956.
- Genuine Toro part built to exact OEM specifications.
- Designed for select 22-inch Recycler Rear Wheel Drive Mowers.
- Ensures seamless drivetrain performance.
Pros
- Genuine Toro Quality.
- Engineered for Reliable Performance.
- Built to Exact Specifications.
Cons
- Higher cost than budget alternatives (implied, as genuine parts are generally higher cost).
- Requires detailed compatibility check using model and serial number.
Detailed Buying Guide: How to Choose the Right Replacement Parts
Selecting the correct replacement part is crucial for ensuring optimal performance, longevity, and safety of your Toro lawn mower.
When faced with numerous options, focusing on compatibility, durability, and ease of installation will guide your decision.
1. Match Your Mower Model Exactly
It is imperative to always verify that the replacement part is designed for your specific Toro model and serial number. Many components, such as the 115-8420 Trailing Shield Flap or the DECKMAN Side Discharge Chute (115-8447), are only compatible with certain production ranges.
Using an incompatible part can result in poor function or safety hazards. You should check your mower’s label (often under the deck or near the engine) or consult your owner’s manual to confirm the correct part number before purchasing Toro lawn mower parts.
Prioritizing parts with detailed specifications and matching model numbers minimizes the risk of incompatibility.
2. Prioritize Genuine or OEM-Compatible Parts
Genuine Toro parts, such as the Toro 106-3956 Transmission Assembly, are built to exact specifications, which guarantees reliable performance. However, high-quality aftermarket parts can offer similar fit and durability at a lower cost.
When choosing aftermarket options (like the UDC Gator Mulching Blades or the Recoil Starter for Kohler Toro Engines), look for those explicitly marketed as “OEM-compatible,” meaning they are engineered to meet or exceed the Original Equipment Manufacturer’s standards, even if not made by Toro.
Our data-driven evaluation reveals that parts explicitly listing OEM replacements (e.g., “Replaces 14 165 20-S”) often correlate with higher review scores and reliable performance.
3. Focus on Key Wear Components
Some parts wear out faster and require more frequent replacement to maintain optimal functionality:
- Blades: Sharp mulching blades, like the UDC 2-Pack Gator Blades, are essential for improving cut quality and grass health.
- Belts: Components like the 117-1018 V-Belt drive the deck or the wheels; always ensure you verify the correct size, such as the 32-3/8″ length, for proper tension.
- Wheels: Durable replacements, such as the CheeMuii 8″ Lawn Mower Wheels, are vital for enhancing maneuverability and stability.
- Safety Parts: Never skip replacing worn safety shields like the 115-8420 Trailing Shield Flap, as these protect against debris.
4. Check Installation Ease and Warranty
Opt for replacement parts that facilitate simple, tool-friendly installation. For example, the Recoil Starter is designed to replace the old assembly in minutes using just three screws.
Furthermore, a strong warranty, such as the 12V Battery’s 2-year replacement guarantee, provides added peace of mind regarding long-term reliability and manufacturer confidence.