ZALANA 21" Replacement 2105200317A Lawn Mower Mulching Blade for 2105200317 84005221 - Compatible with Daye/Hyper Tough/Murray MNA152901 MNA152903 MNA152701 Push Mower - 2 Pack Review

Overview

The ZALANA 21" Replacement Mulching Blade is a drop-in upgrade for a wide range of push mowers, specifically designed to fit Daye, Hyper Tough, and Murray models like the MNA152901, MNA152903, and MNA152701. If you own one of these common budget-friendly mowers and your blade is dull, chipped, or bent, this two-pack offers a cost-effective way to restore cutting performance without buying a whole new mower. It’s best for homeowners with small to medium lawns (up to 1/3 acre) who want a sharp, mulching-ready blade that installs easily and doesn’t break the bank.

Who Should Buy This

1. Homeowners with Hyper Tough or Murray push mowers – If you have a MNA152901, MNA152903, or similar model, this blade is a direct fit. No adapters, no filing, no headaches. It’s made for your machine.

2. Budget-conscious DIYers who sharpen their own blades – At $23.99 for two blades, you’re paying about $12 per blade. That’s cheaper than most single replacement blades at big-box stores. You can run one while the other is being sharpened.

3. Owners of 1/4–1/3 acre flat lawns – The mulching design works best on grass that’s cut regularly and not too thick. If your lawn is mostly level and you mow weekly, this blade will give you a clean, fine mulch that feeds your soil.

4. Anyone tired of dealing with gas or cord hassles – These blades are for electric push mowers (corded or battery) that use a 21-inch blade. If you’ve already made the switch to a quiet, low-maintenance mower, this keeps your setup simple.

Key Features Breakdown

21-inch blade length – Standard size for most push mowers in this class. The 21-inch cut width is a sweet spot: wide enough to finish a small lawn in reasonable time, but narrow enough to maneuver around flower beds and fences.

Mulching design – The blade has a curved, angled shape with extra cutting edges on the back. This lifts grass, cuts it multiple times, and drops it back as fine clippings. You won’t need to bag or rake if you mow regularly. Just remember: mulching works best when the grass is dry and no more than 1/3 of the blade height is removed per pass.

Compatibility with Daye/Hyper Tough/Murray – The center hole and offset are matched to these specific brands. The part numbers 2105200317A and 84005221 are the OEM equivalents. If you’ve ever bought a “universal” blade that didn’t fit, you’ll appreciate how this one lines up.

2-pack value – Most retailers sell a single blade for $15–$20. Getting two for $23.99 means you save roughly 40% per blade. One goes on the mower, the other stays as a backup or gets sharpened for the next season.

Steel construction – The blade is made from heat-treated steel. It’s not a premium hardened alloy like some $40 blades, but it’s durable enough for typical residential use. Expect 2–3 seasons before replacement, depending on how often you hit rocks or roots.

Pros

1. Direct fit for common mowers – No modifications needed. If you have a Hyper Tough or Murray push mower, this blade slides right on. The center hole and offset are spot-on.

2. Excellent value for a two-pack – At $12 per blade, you’re getting a spare for free compared to buying singles. Perfect for keeping a sharp blade on hand.

3. Mulches well on dry grass – When used correctly, it produces fine clippings that disappear into the lawn. No clumps, no raking.

4. Easy installation – The blade is balanced from the factory. Just remove the old blade, put this one on with the sharp edge facing up, and torque the bolt to spec. Takes 10 minutes.

5. Quiet operation – Because it’s a mulching blade with a curved shape, it doesn’t create the loud whine of a standard lift blade. Your neighbors will thank you.

6. Works with both corded and battery mowers – No special requirements. As long as your mower uses a 21-inch blade with the correct center hole, you’re good.

Cons

1. Not ideal for thick or wet grass – Mulching blades need dry, moderate-height grass to work well. If you let your lawn get tall or try to cut after rain, expect clumps and uneven cutting.

2. Steel is softer than premium brands – It’s adequate for typical use, but if you hit a hidden rock or a tree root, the blade will dull faster than a higher-end hardened steel blade would.

3. Limited to specific mower models – This isn’t a universal blade. It fits Daye, Hyper Tough, and Murray push mowers, but won’t work on most Craftsman, Toro, or Honda models. Double-check your mower’s part number before buying.

4. No bagging or side-discharge option – This is a dedicated mulching blade. If you want to bag clippings or blow them out the side, you’ll need a different blade. The ZALANA is optimized only for mulching.

Bottom Line

The ZALANA 21" Replacement Mulching Blade is a smart, affordable choice for anyone with a Hyper Tough or Murray push mower who wants to keep their lawn looking tidy without spending a fortune. The two-pack delivers genuine value, the fit is exact, and the mulching performance is solid for average residential lawns. If you mow weekly on dry grass and don’t need bagging, this is your blade. Just don’t expect it to handle overgrown lawns or heavy abuse. For the price, it’s a no-brainer upgrade for your mower’s cutting deck.

Frequently Asked Questions

Q: Will this blade fit my Hyper Tough 21-inch push mower?
A: It depends on the exact model. This blade is compatible with Hyper Tough mowers that use part numbers 2105200317A or 84005221. Check your current blade’s part number or your mower’s manual. If your mower is one of the common MNA152901, MNA152903, or MNA152701 models, it’s a direct fit.

Q: How do I know which side faces up when installing?
A: The sharp edge of the blade should face upward (toward the mower deck). The curved, angled part of the blade should also point upward to create lift. If you install it upside down, the mower won’t cut properly and could vibrate badly. Most blades have an arrow or “this side up” marking—look