Best Dethatcher Attachments for Push Lawn Mowers
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A push mower dethatcher is a dethatching tool, sometimes called a scarifier, that removes thatch from a lawn, and in some listings a replacement blade or tine set that fits a push mower’s dethatching attachment. This roundup covers four dethatcher products from our product pack: two electric scarifiers and two replacement blade sets. Each entry uses only what its listing states about working width, motor, blade, fit and included parts. Where a listing does not give a point, the text says so.
Quick answer
- Two of the four products are complete electric dethatchers, both listed at 15 amps with detachable blades and four height settings.
- The other two are replacement parts, a 16-inch dethatcher blade pack for a 16-inch push mower and a set of dethatcher tines for a Greenworks 14-inch corded dethatcher.
- Check the fit before buying a part. The blade listing names a specific push mower dethatcher model, and the tine listing names a specific part number.
- The two complete dethatchers differ mainly in working width. One listing gives a 13-inch or 12-inch working width, and the other gives a 16-inch title width.
What a push mower dethatcher does
Thatch is a layer of dead grass stems and roots that builds up between the soil and the green blades. A dethatcher uses blades or tines to comb through that layer and lift it out. The listings in this roundup describe electric scarifiers that do this job and replacement parts that keep the tool working. A dethatching attachment on a push mower works on the same principle, but the pack’s attachments are the parts and the stand-alone tools.
The product types in this roundup are not the same. A complete dethatcher is a separate machine with a motor, a handle and a set of blades. A replacement blade or tine set is a part, and it fits only the tool it names. A buyer should decide first whether they need a new tool or a part for one they already own.
How to choose a dethatcher
Start with the working width. The two complete tools differ in width, and the listing titles give 13-inch and 16-inch sizes. A wider head covers more lawn per pass but adds weight and reduces control on a small yard. The listings do not give a weight for either tool in the text used here.
Next, check the motor. Both complete tools are listed with a 15 amp rating, and one listing gives a 12-amp motor in the bullets. The motor sets the tool’s power, so a buyer with a larger lawn should check the rating on the product page. The listings do not give a comparison with other dethatchers.
Then check the blades and the adjustment. The complete tools have detachable blades that the listings say can be swapped out, and they have four raking height settings. A replacement blade or tine set is needed when the original parts wear. The listing for each part names the tool it fits, so check that match before you order.
Comparison table
The table uses only values stated in each listing. “Not stated” means the listing gives no value.
| Product | Type | Working width or size | Power or material | Blade or fit | Height settings |
|---|---|---|---|---|---|
| Garden Scarifier 2-in-1, 16 inch title (listing) | Electric dethatcher and scarifier | 13 inch or 12 inch working width (bullet) | 15 amp, 12-amp motor (bullet) | Detachable blades | 4 settings |
| Garden Scarifier 2-in-1, 13 inch title | Electric dethatcher and scarifier | 13 inch or 12 inch working width (bullet) | 15 amp, 12-amp motor (bullet) | Detachable blades | 4 settings |
| MURNELAP Oregon 690-617-0 16 inch dethatcher blade, 2-pack | Replacement blade | 16 inch, for 16 inch push mowers | Not stated | Fits Oregon 690-617-0 universal blade (listing) | Not applicable |
| Sileduove dethatcher tines replacement | Replacement tines | Not applicable | Solid steel (listing) | Greenworks part 29272, 14 inch corded dethatcher | Not applicable |
Roundup: four push mower dethatcher products
Garden Scarifier 2-in-1 16 inch Electric Lawn Dethatcher
This electric scarifier is titled as a 16-inch dethatcher and scarifier with a 15-amp rating. The bullets describe a 13-inch or 12-inch working width and a 12-amp motor. That mismatch between title and bullet should be checked on the product page, because the working width is the number that decides how much lawn each pass covers.
The listing says the detachable blades can be swapped out easily, which lets a buyer replace worn blades without replacing the whole tool. It describes four raking height adjustments, so the user can set how deeply the blades reach into the turf. The listing presents the tool as the widest and most powerful dethatcher in its range, which is a manufacturer claim and not a comparison this guide makes.
Garden Scarifier 2-in-1 13 inch Electric Lawn Dethatcher
This sister listing is titled as a 13-inch dethatcher and scarifier. Its bullets match the 16-inch listing, with a 13-inch or 12-inch working width, a 12-amp motor, a 15-amp rating, detachable blades and four height settings. The two listings appear to describe the same product family, with the title giving the size that differs.
For a buyer with a smaller lawn or a narrower path, the 13-inch title suggests the smaller head. The listing says the blades are detachable and the height adjustment has four settings. Check the product page for the exact width before ordering.
MURNELAP Oregon 690-617-0 Universal 16 inch dethatcher blade, 2-pack
This is a replacement blade pack, not a complete tool. The listing gives the blade as the Oregon 690-617-0 universal 16-inch dethatcher blade for 16-inch push mowers, and it includes two blades. The listing says the blade is designed for models matching 6906170, which is the Oregon model number it lists.
The two-pack is useful for a buyer who wants a spare blade on hand. The listing says the spare can be swapped in quickly when needed. Because the blade is named for a specific Oregon model number, a buyer should confirm that the number matches their push mower’s dethatcher before ordering.
Sileduove dethatcher tines replacement, fit for Greenworks
This is a replacement tine set. The listing gives the part as dethatcher tines replacement part number 29272, and it says the tines fit a Greenworks 10-amp 14-inch corded dethatcher. The tines are described as solid steel, which the listing presents as strong and sturdy.
The listing says the tine structure is designed to strip thatch and dead grass from the surface. The fit is the key point: the listing names the Greenworks part number, so the buyer should check that part number against the tool before ordering. The listing does not give a count of tines per set.
In-depth look: the 16-inch Garden Scarifier
The 16-inch Garden Scarifier is the complete dethatcher with the most detail in its listing, so it is the product to read in full. Its title gives a 16-inch size and a 15-amp rating, and its bullets describe a working width of 13 inches or 12 inches with a 12-amp motor. Those figures do not agree on width, so the buyer should check the product page and confirm the working width before buying.
The blade design is the first feature. The listing says the detachable blades swap out easily. That matters because a dethatcher’s blades are the parts that wear, and a tool with replaceable blades can stay in use longer. A buyer who wants to replace blades can check the blade parts in this roundup, which are sold for a specific push mower dethatcher model.
The height setting is the second feature. The listing gives four raking height adjustments. The buyer can set the blades for a light pass or a deeper pass, which the listing says lets the user customize the tool to the lawn.
The power is the third feature. The listing says a 12-amp motor and a 15-amp rating. A buyer should read the power figure against the lawn size. The listing does not say whether the tool includes a bag or a collection system, so check the included items before buying.
Close alternatives in this roundup are the 13-inch version of the same scarifier, which has a smaller title width, and the replacement blade pack for a 16-inch push mower.
Replacement parts: blades and tines
A replacement part makes sense only when it matches the tool. The Oregon-style blade pack is named for a 16-inch push mower dethatcher. The tine set is named for a Greenworks 14-inch corded dethatcher. In both cases the listing names the model or part number, so the match must be confirmed before buying.
A two-pack of blades is useful for a buyer who wants a spare. The listing says the spare can be swapped in quickly. A set of tines is useful for a buyer who wants to refresh an older tool. Each part should be installed according to the tool’s manual.
Replacement parts are not interchangeable with the complete tools in this roundup. A blade pack does not turn a tool into a different tool, and a tine set does not fit a different model unless the listing names it.
Safety and use points
An electric dethatcher has a motor and a set of blades that rotate or move through the turf. Unplug the tool before adjusting the height, changing a blade or clearing debris. Keep hands and feet clear of the blades, and keep bystanders and pets away while the tool is running.
Check the cord and the plug before each use. The listings for the complete tools describe a corded electric motor. A damaged cord should be replaced before use, and the tool should be used only in the conditions its manual allows.
Inspect the blades or tines before each use. Replace a bent, cracked or worn blade. The listings do not give a service life for the blades in hours, so the buyer should inspect them on a regular basis.
FAQ
What is a push mower dethatcher?
It is a dethatching tool, or scarifier, that removes thatch from a lawn. The roundup also includes replacement blades and tines that fit a specific push mower dethatcher or a Greenworks dethatcher.
Do I need a complete dethatcher or a replacement part?
If you do not own a dethatcher, a complete tool is the choice. If you already own a dethatcher or a push mower dethatching attachment and the blades or tines are worn, a replacement part is the choice. Check the part number before ordering.
What working width do the complete dethatchers have?
The bullets for both complete tools give a 13-inch or 12-inch working width. The 16-inch listing title does not match that width, so check the product page before buying.
How many height settings do the scarifiers have?
Both complete tools list four raking height adjustments. The buyer can set the blades to suit the thatch depth and the lawn condition.
Will a blade pack fit my push mower?
The Oregon blade pack is named for 16-inch push mowers and the Oregon 690-617-0 model. Confirm the model number on your mower or the blade before ordering.
Do the tines fit any dethatcher?
The tine listing names the Greenworks part number 29272 and a Greenworks 14-inch corded dethatcher. It does not state a fit for other tools, so check the part number before buying.
Bottom line
For a push mower dethatcher, first decide whether you need a complete tool or a part. Choose one of the two Garden Scarifier listings if you need a new electric dethatcher, and check the working width first because the listings disagree. Choose the Oregon blade pack if your push mower dethatcher uses that model, and choose the Sileduove tines only if they match a Greenworks 14-inch corded dethatcher by part number.
For a broader look at push mowers, read our CRAFTSMAN electric push lawn mower review.
