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2 Pack GY20850 Mower Blades for John Deere 42 inch Mower Blades
✅ In stock
F
Grade
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Oct 30, 2026 4:58 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
BOSFLAG USA
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Compatible with OEM Part Numbers: Direct replacement for top-searched John Deere OEM parts—GY20850, GX22151, UC21583, AM141033, AM141031, AM137333, AM137328. Perfect fit for John Deere 42 inch mulching blades, GY20850 high lift blades & GX22151 mower blades—ensures seamless fit for 42-inch John Deere decks, no performance gaps
✓Precise Blade Specifications: Mulching Blade with exclusive 7-point star center hole—Length: 21-7/16" (21.4375"), Width: 2.6875" (2-11/16"), Thickness: 0.17", 0.6" air lift. Delivers optimal mulching performance and clean cuts
✓Complete Installation Hardware Kit: Includes 2 sets of hardware: 5/8"-18 nuts, 5/8" large washers, M12x1.25 hex lock nuts (Part#M156416 + M147138). No extra parts needed—enables secure, vibration-free mounting right out of the box
✓Durable & Ready-to-Use High-Carbon Steel: Protective coating prevents rust during storage and protects hands during installation (wears off naturally after first mow). High-strength steel maintains sharpness and ensures long-term durability
✓Superior Mulching & 2-IN-1 Function: Finely chops grass clippings to return nutrients to soil (no bagging needed), while supporting bagging/side discharging for tall/wet grass. Low clogging risk with balanced airflow design
✓WIDE COMPATIBILITY : Perfectly fits John Deere 42" 100 Series Decks including 102 105 115 125 135 107S D100 D105 D110 D120 D125 D130 E100 E110 E120 E130 L100 L105 L107 L108 L110 L111 LA100 LA105 LA110 LA115 LA120 LA125 LA135 LT160 LT180 S100 S110 S120 S130 S240 SST15 SST16 X105 X106 X107 X110 X120 X125 X126 X127 X145 X300 X304 X305 X310 X500 X520 Z225 Z235. Ideal replacement for John Deere 42 Inch Mower Blades, John Deere Mower Blades 42 Inch Deck (see product description for full list)
⚙️ Specifications
17.5 x 13.9 x 3.3 inches
6.14 pounds
BOSFLAG
B0GX5Q2HVS
GY20850
4.3
Package Dimensions
17.5 x 13.9 x 3.3 inches
Item Weight
6.14 pounds
Manufacturer
BOSFLAG
ASIN
B0GX5Q2HVS
Item model number
GY20850
Customer Reviews
4.3
Best Sellers Rank
See Top 100 in Patio, Lawn & Garden
Ships From
Amazon
