Worx Mower Blades: Genuine or Compatible Replacement?

The line-up at a glance

Worx Lawn Mower Blades Compared

From the notebook

2 Pack 13″ Lawn Mower Mulching for Multi-Season Reliability

The 2 Pack 13″ Lawn Mower Mulching blade kit manufactured by Stelrwan provides another dependable dual-pack solution for legacy Worx mowers. Specifically referencing replacement part numbers 50020092 and WA0024, these blades match the mounting setup on the Worx WG782, WG783, and WG775 models. Fabricated from sturdy metal, each blade is shaped to handle mulching, collection bagging, and organic composting workflows. Stelrwan specifies a product package weight of 1.04 pounds, ensuring that these blades remain light enough to carry inside a travel tool tote for off-site yard care.

Installing a balanced worx wg782 blade is critical for preserving battery runtime. Dull edges drag against dense turf, causing the electric motor to pull more amps and prematurely exhausting battery cells. The listing reminds users to exercise caution during installation, which is sound advice whenever working around sharp rotating hardware. Having two matched blades in one package allows you to rotate cutters across alternating seasons: one blade can stay active on the deck while the other is cleaned and sharpened at your leisure, keeping your cutting schedule entirely uninterrupted.

This package is best suited for homeowners who run legacy 13-inch Worx equipment and want a reliable dual-blade set to handle weekly lawn trims. If your equipment uses the newer deck designs found on the WG733E or WG743 series, this 13-inch unit gives way to the single genuine factory blade or wider aftermarket options below.

From the notebook

34 cm 13 inch lawnmower blade for Heavy-Duty 3-in-1 Mowing

The 34 cm 13 inch lawnmower blade from manufacturer perfektGarten combines high-grade metallurgy with broad machine compatibility. Designed to replace original part numbers 113632, A056014300, 50020092, and WA0024, this blade works with the WORX WG782, WG783, WG775, and WG779 mower models. Measuring 340 mm in length, 44 mm in width, and 2.3 mm in thickness, the cutter features a 19 mm central bore and 7.5 mm outer holes spaced 50 mm center-to-center.

What sets this unit apart from standard replacements is the material specification. The blade is forged from certified 50CrV4 steel, which is hardened, heat-treated, and dynamically balanced to 45 HRC. The straight-bent geometry functions as a true 3-in-1 combination knife, supporting side ejection, clean bagging, and fine mulching. The manufacturer notes a service life designed to handle at least three full mowing seasons under normal conditions. This hardened steel construction resists chipping when clipping tough stems or running across hidden debris on country properties.

This heavy-duty blade suits owners who split time between different Worx models or want the superior wear resistance of certified 50CrV4 alloy. While it offers premium metallurgy across WG782 and WG779 machines, it gives way to the larger 400 mm option when cutting with wider Worx dual-battery mowers.

From the notebook

perfektGarten 40 CM lawnmower blade compatible for Wide-Deck Battery Mowers

Best for: Wide-cut yards using WG743E mowers

Pros

• Wide 400 mm cutting span
• Tempered carbon steel build
• Extra-thick 2.8 mm profile

Cons

• Incompatible with smaller decks
• Requires more motor torque

The perfektGarten 40 CM lawnmower blade compatible replacement is built for the larger tier of Worx cordless machines, including the WORX WG743E, WG743E.1, and WG743E.9. Replacing part numbers WA0029 and WA 0029, this model 1217 blade features an extended length of 400 mm (approximately 15.75 inches). It is manufactured from certified carbon-containing steel that undergoes specialized quenching and tempering to achieve a verified hardness rating of 45 HRC.

Measuring 44 mm wide and an upgraded 2.8 mm thick, this blade delivers substantial rigidity when turning across thick spring grass. The mounting system matches the deck spindle precisely with a 19 mm central bore, 7.5 mm side holes (7 x 8 mm spec), and a 50 mm distance between hole centers. Similar to swapping out a heavy-duty craftsman lawn mower blade on a walk-behind rotary mower, installing this rigid 400 mm blade produces high aerodynamic velocity inside the deck. This strong air current powers the 3-in-1 throwing, catching, and mulching capabilities of the WG743 series without leaving clumps across your turf.

This blade is the clear choice for homeowners operating 40 cm Worx decks who manage broader lawns before hitting the road. Because of its 400 mm length and 2.8 mm thickness, it is built solely for WG743 series decks and cannot be mounted on 13-inch or 34 cm mower decks.

Before you choose

How to Choose the Right Worx Lawn Mower Blades

Selecting the appropriate worx lawn mower blade requires matching the physical cutting diameter of your mower deck. Worx manufactures walk-behind mowers across several deck classes, and installing the wrong length can cause clearance interference or reduce cutting efficiency. Compact models like the WG782, WG783, and WG775 use 13-inch (approximately 33 cm to 34 cm) cutters. Newer mid-size battery units like the WG779E require a 34 cm blade, while larger dual-battery units like the WG743E demand a wide 40 cm (400 mm) cutter. Always verify the deck width stamped on your mower’s identification badge before ordering.

Mounting hole architecture is equally critical when evaluating replacement blades. Several Worx models feature a three-hole mounting system with a central round bore measuring 19 mm flanked by two outer locating holes measuring 7.5 mm (or 7 x 8 mm oval profile) positioned 50 mm apart from center to center. Both the 34 cm and 40 cm blades from perfektGarten explicitly state these exact measurements. If a replacement blade lacks compatible locating pin holes, it cannot seat flat against the motor hub, creating severe vibration hazards during operation.

Evaluating blade metallurgy determines how often you will need to sharpen or replace your cutting edge. Standard high-quality metal blades, like the 2-pack options from WuWoWo and Stelrwan, offer an economical way to keep spare cutters ready in your workshop. Conversely, engineered blades crafted from certified 50CrV4 steel or quenched carbon steel hardened to 45 HRC provide superior edge retention and resist bending when encountering sticks or gravel. For active homeowners who travel often and want low maintenance, hardened steel blades maintain their keen cutting profile over multiple seasons.

Finally, decide between multi-pack convenience and genuine factory equipment. If you operate the WG733E, the WORX Original WA6326 provides guaranteed manufacturer engineering, light rotating weight, and optimal battery efficiency. On the other hand, if you manage a 13-inch deck like the WG782 and prefer zero mowing downtime, a dual-blade package ensures you can drop in a fresh blade immediately while storing the dull unit for sharpening when your schedule permits.

Questions people ask

FAQ

Which blade fits my Worx mower?

Finding which blade fits my worx mower depends entirely on your specific model number. The Worx WG733E uses the 33 cm genuine WORX WA6326 blade. Models such as the WG782, WG783, and WG775 accept 13-inch (or 34 cm) blades compatible with part numbers 50020092 and WA0024. The WG779E uses 34 cm blades matching part number WA0027, while the larger WG743E series requires a 40 cm blade matching part number WA0029. Always check your mower’s deck label before purchasing.

How do I know if my Worx replacement blade needs to be changed?

Signs that your blade requires replacement include shredded, brown grass tips, increased motor strain, and reduced battery runtime. Because cordless mowers rely on sharp cutting profiles to maximize runtime, a dull or nicked blade forces the motor to expend extra energy. Additionally, if you notice rhythmic vibrations during operation, the blade may be bent or out of balance, requiring immediate replacement to protect the motor bearings.

Can I use a 34 cm blade on a 13-inch Worx mower deck?

A 13-inch cutting span translates to approximately 330 mm to 335 mm. Certain 34 cm (340 mm) aftermarket blades, such as the 50CrV4 model from perfektGarten, are cross-compatible with 13-inch decks like the WG782, WG783, and WG775 because the deck shell provides sufficient perimeter clearance. However, always confirm that the replacement references your exact mower model number and part number 50020092 before mounting.

Is the authentic Worx WA6326 blade compatible with all Worx mowers?

No, the authentic WORX WA6326 replacement blade is specially engineered for the WORX WG733E mower. While it features a 33 cm cutting diameter, its specific hub interface and mounting geometry are designed exclusively for that model. It is not compatible with larger decks like the WG743E or older push models like the WG782.

What is the difference between a 3-in-1 blade and a standard mulching blade?

A standard mulching blade is shaped with specialized curved wings to recirculate clippings repeatedly beneath the deck until they are pulverized into fine pieces. A 3-in-1 combination blade features a versatile lift profile engineered to handle three distinct cutting functions: mulching clippings back into the turf, lifting grass high into a collection bag, or channeling waste cleanly out of a side discharge chute.