A well-maintained lawn mower is the key to a pristine yard, and at the heart of its performance is a sharp, reliable blade. Over time, even the best blades dull, bend, or become damaged, leading to an uneven cut that can stress your grass. Replacing your mower blade is one of the most effective forms of maintenance you can perform.
Choosing the correct replacement blade is essential for safety and cutting quality. This roundup focuses on Briggs & Stratton blade replacements, including genuine OEM parts and compatible options from trusted brands. We have compiled a list of the top choices for 2025 to help you find the perfect fit for your mower model and get a clean, healthy cut every time.
The Best Briggs & Stratton Replacement Blades
- Briggs & Stratton Mower Blade
- Briggs & Stratton Single Replacement Lawn Mower Blade
- Briggs and Stratton 1687017SM 20 inches Mower Blade
- Briggs and Stratton 7041939BZYP Blade, 21″ Mulch
- Briggs and Stratton Replacement Mower Blade 21″ for Snapper Mower
- Briggs & Stratton Mower Blade 21″ Standard Lift
- Oregon 3 Pack 396-730 G6 Gator Mulcher Blade
- Oregon 3 Pack 96-382 Gator® G3™ Blade 17-1/2″
- Briggs and Stratton Genuine 703371 Blade, 21″ Mulching
- MaxPower 334063B High-Lift Blade for Briggs & Stratton 21-Inch Mowers
Briggs & Stratton Mower Blade
For those who prefer to stick with manufacturer parts, this genuine Briggs & Stratton blade is a reliable choice. It is engineered to help keep your outdoor power equipment running at peak performance, ensuring a cut that matches the original quality. Using OEM parts like this guarantees compatibility and maintains the integrity of your mower’s design.
This blade, with OEM part number 1731898BZYP, is designed to fit various Briggs & Stratton models. It is a direct replacement that simplifies the selection process, giving you confidence that the part will work as intended. This is a straightforward solution for restoring your mower’s cutting efficiency.
Briggs & Stratton Single Replacement Lawn Mower Blade
This is another genuine OEM replacement part from Briggs & Stratton, specifically designed as a 40-inch mower blade. It is an authentic part manufactured to precise specifications, ensuring a perfect fit and reliable performance. This blade is noted for its compatibility with various Murray lawn mower models, making it a versatile option for many users.
By choosing this genuine part, you are investing in the longevity and health of your mower. It is built to withstand the demands of regular mowing and provide a consistent, clean cut. This blade is a solid choice for anyone needing a large, 40-inch replacement blade from a trusted source.
Briggs and Stratton 1687017SM 20 inches Mower Blade
This 20-inch genuine Briggs and Stratton blade, part number 1687017SM, is a compact and effective replacement option. It is sold as a single unit, providing exactly what you need for a standard blade replacement. As a manufacturer part, it promises a direct fit and performance that matches your mower’s original capabilities.
Ideal for smaller or standard-sized mowers, this blade helps maintain a well-groomed lawn. Its design focuses on delivering a clean and even cut every time. If your mower requires a 20-inch blade, this genuine part is a dependable and easy-to-find solution.
Briggs and Stratton 7041939BZYP Blade, 21″ Mulch
For homeowners who prefer mulching, this 21-inch blade from Briggs & Stratton is an excellent OEM-authorized part. Mulching blades are designed to cut grass clippings into fine particles that can be returned to the lawn as nutrient-rich fertilizer. This part, with number 7041939BZYP, is built specifically for this purpose.
This blade fits various Briggs & Stratton models, making it a convenient choice for a straightforward replacement. Using a dedicated mulching blade like this can improve your lawn’s health and reduce the need for bagging clippings. It is a smart investment for an eco-friendly lawn care routine.
Briggs and Stratton Replacement Mower Blade 21″ for Snapper Mower
This 21-inch mulching blade offers broad compatibility with various Briggs & Stratton and Snapper mower models. It is designed to be a direct replacement for part numbers like 7800923 and 1696627. The blade features a bow-tie center hole with specific dimensions for a secure fit.
The product description includes helpful installation tips, noting that the basic swap can take about 10 minutes. It advises installing the blade with the air filter side up and wearing gloves for safety while tightening. This practical guidance can be very useful for a DIY replacement, making the process smoother for the user.
Briggs & Stratton Mower Blade 21″ Standard Lift
This 21-inch standard lift blade is a genuine Briggs & Stratton part, identified by model number 7026691BZYP. A standard lift blade is a great all-purpose option that provides good airflow for effective bagging or side discharge. It is a versatile choice for general mowing conditions.
Notably, this part is manufactured in the United States. The item’s package dimensions are clearly listed, which can be helpful for verifying the product upon delivery. This blade is a solid, no-fuss replacement for maintaining a clean and healthy cut on your lawn.
Oregon 3 Pack 396-730 G6 Gator Mulcher Blade
Oregon is a highly respected brand in the outdoor power equipment industry, and this three-pack of G6 Gator Mulcher blades offers great value. These blades are designed to replace John Deere part numbers like TCU15881 and are used on larger 60-inch cut decks, with three blades required. This makes the pack a complete set for a single deck.
The Gator Mulcher design is known for its efficiency, cutting grass clippings finely for excellent mulching performance. With a blade length of 21 inches and a robust 7/8-inch center hole, these blades are built for durability and consistent results. Buying in a multi-pack is cost-effective and ensures you have spares on hand.
Oregon 3 Pack 96-382 Gator® G3™ Blade 17-1/2″
This three-pack from Oregon features their Gator G3 blades, which are 17-1/2 inches long. These blades are designed with a high-lift profile, meaning the aggressive blade angle increases airflow to push grass clippings up and out for superior bagging or side discharge performance. This results in a cleaner cut and a tidier lawn.
The efficient cutting performance can also reduce how often you need to bag clippings. The Gator Mulcher feature provides added durability and performance in normal or abrasive mowing conditions. This pack is an outstanding value for someone with a compatible mower who wants professional-grade results.
Briggs and Stratton Genuine 703371 Blade, 21″ Mulching
This is another genuine OEM mulching blade from Briggs & Stratton, part number 703371. As an O.E.M. authorized part, it is guaranteed to fit and perform like the original blade that came with your mower. It is specifically engineered for a 21-inch cutting deck.
Mulching blades like this one are ideal for those who want to nourish their lawn naturally by returning finely chopped clippings to the soil. This blade is designed to fit various Briggs & Stratton models, providing a reliable and effective mulching solution for a healthier lawn.
MaxPower 334063B High-Lift Blade for Briggs & Stratton 21-Inch Mowers
MaxPower is a well-known manufacturer of high-quality aftermarket replacement parts. This high-lift blade is designed to be compatible with many 21-inch Briggs & Stratton mowers. A high-lift blade creates stronger suction, which stands the grass up for a cleaner cut and improves bagging and discharge performance.
This type of blade is excellent for dealing with taller or damp grass. Aftermarket parts from trusted brands like MaxPower often provide a cost-effective alternative to OEM parts without sacrificing performance. This blade is a strong contender for anyone needing to improve their mower’s suction and cutting efficiency.
Buying Guide: How to Pick the Right Briggs Stratton Lawn Mower Blade Replacement
When it’s time to swap out that old, dull blade on your Briggs & Stratton mower, the options can feel overwhelming. I’ve been there, staring at a wall of blades at the local hardware store, completely unsure which one is the right fit. It’s not just about grabbing any blade that looks close; getting the correct one is a matter of safety, performance, and the health of your lawn. Let me walk you through what I’ve learned to make your next purchase a simple one.
First and foremost, you absolutely need to know your mower’s model number. This is the golden ticket. It’s usually stamped on a sticker on the mower deck or the engine itself. Don’t guess; a blade that’s even a fraction of an inch off in length or has the wrong center hole size simply will not work and can be dangerous. Once you have that model number, you can cross-reference it with the manufacturer’s specifications for the exact blade part number. This is your safest bet for a perfect fit.
Next, consider the type of grass you’re cutting and the finish you want. Are you looking for a basic, reliable cut? A standard mulching blade is your go-to. These blades are designed to keep grass clippings circulating under the deck longer, chopping them into fine pieces that decompose quickly and feed your lawn. If you frequently deal with wet, heavy grass or a lot of leaves, a high-lift blade might be a better choice. They create a stronger upward airflow to help discharge clippings more efficiently and prevent clogging. For the cleanest, most manicured look, some people prefer a dedicated bagging blade, which is optimized to push clippings directly into the collection bag.
Finally, pay attention to the blade’s material and construction. I always look for blades made from hardened or high-carbon steel. They hold a sharp edge much longer than softer metals, meaning you won’t have to sharpen or replace them as often. A good corrosion-resistant finish, like a powder coat or oil coating, is also a huge plus for longevity, especially if you store your mower in a damp shed or garage. While it might be tempting to just sharpen your old blade repeatedly, remember that metal fatigues over time. Replacing it with a new one ensures balanced cutting and reduces vibration, which is easier on your mower’s engine and spindle. Taking the time to choose the right Briggs Stratton lawn mower blade replacements for 2025 will save you time and trouble down the road.
Frequently Asked Questions
How often should I replace my Briggs & Stratton mower blade?
There isn’t a single set timeline, as it depends on how much you mow and what you’re cutting. A good rule of thumb I use is to inspect the blade at the start of each season and then again halfway through. If you hit a rock or something hard, check it immediately. Generally, if you mow a typical suburban lawn weekly, you might need to sharpen the blade once or twice a season and consider replacing the blade itself every one to two years. Look for signs of excessive wear, like nicks, a rounded cutting edge, or an inability to hold a sharp edge.
Can I use a non-Briggs & Stratton brand blade on my mower?
Yes, you often can, but you must be very careful. The aftermarket blade industry is built on providing compatible parts. The critical factor is that the replacement blade must match the exact specifications of the original Briggs & Stratton part. This includes the length, width, center hole diameter and shape, and the positioning of any secondary holes. Using a blade that doesn’t match can lead to an unbalanced deck, excessive vibration, damage to your mower’s spindle, and a poor cut. Always double-check the compatibility list before buying.
What’s the difference between a mulching blade and a high-lift blade?
This is a common point of confusion. A mulching blade typically has a more curved design and longer cutting edges. Its job is to keep grass clippings suspended under the deck, chopping them into tiny pieces that fall back onto the lawn as natural fertilizer. A high-lift blade, on the other hand, has pronounced fins or wings on the ends. These create a powerful upward suction that lifts the grass for a clean cut and then forcefully discharges the clippings out the side chute into a bag. Some blades are a hybrid, designed to do both tasks reasonably well.
Is it difficult to replace the blade myself?
It’s one of the easier DIY maintenance tasks for a lawn mower, but safety is paramount. You will need a wrench (often a ½” or ¾”) and a block of wood to stop the blade from turning. First, disconnect the spark plug wire to prevent any accidental starting. Tip the mower on its side with the air filter and carburetor facing up. Use the block of wood to jam the blade so it can’t move, then loosen the center bolt. Remember, the bolt has reverse threads, so you turn it clockwise to loosen it. Swap the old blade with the new one, making sure the “grass side” marking faces the ground, and tighten the bolt securely.
What happens if I put the mower blade on upside down?
Putting the blade on upside down is a mistake I’ve seen many people make. The mower will not cut grass properly. Instead of the sharp edge slicing the grass, the dull, flat side will be facing down, which will mostly just beat the grass down without cutting it. This puts a huge strain on your mower’s engine, wastes fuel, and leaves your lawn looking terrible. Always check the manufacturer’s diagram or look for text on the blade that says “grass side” or “this side down” to ensure it’s oriented correctly.