Worx Mower Replacement Parts (Fitment Guide)
To choose the right Worx mower replacement part, start with the complete model number and, when available, the serial number on the mower’s label. Use them to find its matching manual or parts diagram, then confirm the part number and relevant fit details. Voltage, appearance, or a blade’s length alone cannot prove compatibility.
The best-kept secret of parts shopping is that the mower’s model label is more useful than a search for “Worx mower blade” or “Worx battery.” It narrows the choices to parts intended for your machine and can help you avoid buying something that looks right but does not fit or work safely.
I use the same method for every parts check: identify the mower, find the part in its model-specific documentation, and confirm the details before ordering. That process matters whether you need a blade, wheel, handle, fastener, battery, or charger.
Find your mower’s exact identity
A model number identifies the mower family, while a serial number may help distinguish production versions. Record the complete information from the product label before searching; a shortened model name or battery voltage may point to the wrong parts diagram.
Look for the product label on the mower body and copy the model number exactly, including letters, numbers, and any suffix. Record the serial number too, if shown. Keep a photo of the label with your maintenance records so you do not have to rely on memory next season.
Next, find the manual or parts diagram for that exact model. Use the documentation to identify the official part number and any listed revision or serial-number range. If the label is damaged, or the diagram does not clearly match, ask Worx support or an authorized parts seller to confirm the model before ordering.
Key step: Do not use a listing for a mower with a similar name as proof of fit. Confirm the complete model and documentation first.
Match the replacement part, not just its appearance
A part number is the clearest fitment reference in a model-specific parts list. Physical checks can help confirm that the replacement matches, but they do not replace the diagram or manual, especially for blades, batteries, and electrical parts.
| Part | What to confirm before ordering | What not to assume |
|---|---|---|
| Blade | Listed part number, length, thickness, center mounting-hole pattern, and locating features | That equal length means equal fit |
| Battery | Voltage platform and compatibility stated for the mower | That a matching connector proves compatibility |
| Charger | Charger specified for the battery and mower platform in the manuals | That a charger from another Worx tool is suitable |
| Wheel | Model-specific part number, position, and any listed revision | That a similar wheel will mount correctly |
| Handle or switch | Exact model fit and listed hardware or revision | That a part from a related mower is interchangeable |
| Blade bolt or other fastener | Correct part and model-specific installation instructions | That a generic bolt or guessed torque is safe |
Worx mower families may use 20V, 40V, or 80V systems. These labels describe different battery platforms; they do not establish universal interchangeability. A battery or charger must be approved for the mower and battery in their respective manuals. Physical connector fit alone is not enough to confirm electrical compatibility.
Blade checks also go beyond length. The center hole and locating features determine how the blade seats, while thickness and shape must match the specified assembly. Do not enlarge a hole, alter a blade, or force a part into place to make it appear to fit.
Key step: Order by the model-specific part number, then compare critical interfaces with the manual and original part.
Replace a blade safely and verify the fit
A correct blade must match the mower’s specified part and mounting arrangement, and it must be installed in the instructed orientation. The manual is the authority for removal, fastener use, and torque; there is no safe universal torque value for every Worx mower.
Before blade work, park on a stable, level surface, switch off the mower, remove the safety key if equipped, and disconnect or remove the battery. Wait for the blade to stop. Wear gloves and eye protection, and keep hands clear of sharp edges.
Follow the manual’s removal and installation steps. Use the specified fastener and the model-specific torque value if provided. Do not assume a bolt has reverse threads, and do not substitute a generic torque figure. Check the blade for cracks, bends, severe wear, or other damage. Replace a damaged blade; do not straighten or weld it.
Once installed, confirm that the blade is seated in the correct orientation and that guards and covers are back in place. With the battery still disconnected, check that the blade rotates freely by hand as directed by the manual. If the blade does not seat correctly, or the spindle or fastener appears damaged, do not operate the mower. Have the assembly checked.
An incorrectly seated, mismatched, or loose blade can detach or cause severe vibration and loss of control. Stop if you are uncertain about the part, orientation, or fastening instructions.
Key step: Never run the mower with a damaged, loose, altered, or unverified-fit blade.
Prepare, install, and test other parts
For batteries, chargers, wheels, handles, switches, guards, and hardware, use the model diagram to verify the part number and any listed revision. Installation details can differ between models, so follow the matching manual rather than applying instructions from a mower that merely looks similar.
For any inspection or repair, first switch off the mower and remove the safety key and battery when the task requires it. Keep safety devices and guards installed. Do not modify an electrical connector, bypass a switch, or force a component into position.
Before testing a replacement, check that all parts are secure and that no tools or loose hardware remain. Refit the battery and key only when the mower is assembled as directed. Test from the operator position on level ground, with other people clear. Stop immediately if you hear unusual noise or feel abnormal vibration. Remove the battery before inspecting further.
Key step: If the part number, revision, or installation method is unclear, pause and confirm it with the manual or Worx support.
Fitment examples: how to avoid common ordering errors
The examples below are illustrative situations, not claims about a particular mower model. They show how I would check a likely mismatch before ordering or operating equipment.
A blade has the right length but a different center hole
A shopper finds a blade with the same listed length as the original. The mounting-hole pattern or locating features differ, however. That is not a confirmed fit. Check the exact model diagram and blade number; do not modify the hole or force the blade onto the spindle.
A battery connector appears to match
A battery from another Worx tool seems to slide into the mower. That physical fit does not establish that its voltage platform or electrical specifications are approved for the mower. Compare the mower and battery manuals and labels. If compatibility is not stated, do not use it until it is confirmed.
A replacement wheel looks similar
A wheel from a related mower has a similar diameter, but its hub or mounting hardware may differ. Compare the wheel’s model-specific part number, position, and listed revision in the parts diagram. Similar appearance is a useful clue, not a fitment decision.
Key step: In each case, the model-specific documentation decides fit; visual resemblance only prompts a closer check.
Maintain and store replacement parts
A simple parts record can prevent repeat searches and mistaken orders. Write down each mower’s full model and serial number, then note the part numbers for items you replace. Store parts in their packaging or label them with the mower model, and keep them dry and protected from damage.
Before and after mowing, follow the manual’s inspection and cleaning guidance. Keep battery contacts and ventilation openings clean and dry. Remove the battery and safety key before cleaning, inspection, or clearing a blockage. Inspect the blade for damage and stop using the mower if it strikes an object and then vibrates or sounds unusual.
For seasonal storage, remove the battery and key, clean and inspect the mower, and store batteries and chargers under the conditions stated in their own manuals. Keep the mower’s parts diagram with your records so the correct replacement is easier to identify later.
Key step: Label parts by mower model, not simply “Worx,” to avoid mixing components from different machines.
Frequently asked questions
These answers cover the checks that most often determine whether a replacement is suitable. When a detail depends on the mower, use its complete model number and matching manual rather than relying on a general rule.
How do I find the right replacement part for a Worx mower?
Record the complete model number and serial number from the mower label. Find the matching manual or parts diagram, then order by the listed part number and any stated revision.
Can I choose a Worx mower blade by length alone?
No. Confirm the specified part number and check the length, thickness, center mounting pattern, and locating features. The manual and parts diagram must support the fit.
Are Worx 20V, 40V, and 80V mower batteries interchangeable?
Do not assume so. Match the battery platform to the mower’s label and manual. A connector that fits does not prove electrical compatibility.
Can I use a charger from another Worx tool?
Only if the mower or battery documentation confirms that charger is suitable. Check the charger and battery manuals; connector fit alone is not enough.
Where can I find the blade bolt torque?
Use the value and procedure in the manual for your exact mower model. Do not substitute a generic torque figure or guess the thread direction.
What should I do if a replacement blade will not seat?
Stop. Do not force it, alter the blade, or modify its mounting hole. Recheck the part number and mounting features, and have a damaged spindle or fastener inspected.
Should I sharpen a blade with cracks or bends?
No. Replace a cracked, bent, or severely damaged blade. Follow the model manual for guidance on sharpening and balancing blades that are suitable for service.
Do I need to remove the battery before inspecting the blade?
Yes. Switch off the mower, remove the safety key if equipped, and disconnect or remove the battery before blade work, inspection, cleaning, or clearing a blockage.
What if my mower’s product label is unreadable?
Do not guess from appearance or voltage. Contact Worx support or an authorized parts seller with the information you can provide, such as photos and purchase records, and ask them to identify the model.
What should I do if the mower vibrates after a blade replacement?
Stop the mower at once. Remove the battery before inspection. Check only as directed by the manual; a mismatched, loose, or incorrectly seated blade can be hazardous, so do not resume use until the cause is corrected.
(This article was written by one of our staff writers, Harrison Croft. Visit our Meet the Team page.)
