--- product_id: 664667134 title: "UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack" brand: "udc parts" price: "€ 100.39" currency: EUR in_stock: true reviews_count: 5 category: "Udc Parts" url: https://www.desertcart.hr/products/664667134-udc-parts-gy20850-mower-blades-for-john-deere-42-inch store_origin: HR region: Croatia --- # 7-point star mounting 42-inch deck compatible High-strength steel durability UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack **Brand:** udc parts **Price:** € 100.39 **Availability:** βœ… In Stock ## Summary > 🌿 Cut sharper, mulch smarter β€” upgrade your John Deere mower blades today! ## Quick Answers - **What is this?** UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack by udc parts - **How much does it cost?** € 100.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/664667134-udc-parts-gy20850-mower-blades-for-john-deere-42-inch) ## Best For - udc parts enthusiasts ## Why This Product - Trusted udc parts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Effortless Installation:** Quick, hassle-free swap with 7-point star mounting patternβ€”get back to mowing in minutes. - β€’ **Trusted Quality & Support:** Backed by a 1-year product support guarantee and glowing 4.6-star reviews from thousands of satisfied pros. - β€’ **Optimized Mulching Performance:** Curved, serrated 'Gator' edges create finer mulch particles, reducing clumps and enhancing lawn health. - β€’ **Precision Fit for John Deere 42" Decks:** Seamlessly replaces multiple OEM parts including GY20850, GX22151, and AM141033 for a perfect fit every time. - β€’ **Robust High-Strength Steel Construction:** Engineered for long-lasting sharpness and stability, even under heavy mowing conditions. ## Overview UDC Parts GY20850 mower blades are premium replacements designed for John Deere 42-inch decks, compatible with a wide range of models including D105, D130, S100 series, and X300 series. Featuring a 7-point star mounting pattern and crafted from high-strength steel, these blades deliver superior mulching with serrated edges that reduce clumping and promote faster decomposition. Easy to install and backed by a 1-year support warranty, they offer professional-grade durability and performance trusted by thousands of users. ## Description GY20850 GX22151 AM141033 UC21583 AM137333 AM141034 AM141031 M154062 M145970 AM137327 for john deere 42 inch mower blades 102 105 115 125 135 D100 D105 D110 D120 D125 D130 E100 E110 E120 E130 S100 S110 S120 S130 LA100 LA105 LA110 LA115 LA120 LA125 LA135 X105 X106 X107 X110 X120 X125 X126 X145 X305R Z225 Z235 X300 X304 X310 X500 X520 SST15 SST16 LT160 LT180 S240 deck riding lawn mulching parts part gator replaces pack 100 series tractor accessories GY 20850 blade high strength steel 7 Point star. Replace GX22151 AM141033, Fits D105 D130 D110 S100 E130 Z225 E120 D100 D125 E110 LA125 LA115 LA105 Lawn Tractor /7 Point Star Replaces OEM Part: John Deere GY20850, John Deere GX22151, John Deere AM141033 GY20850 Mower Blades Dimensions: Length 21-3/8", Width 2-3/4", Center Hole 7-point star, Air Lift 1", Cutting Edge Length 5-7/16", Compatible Deck Size 42". The length of the blade is measured diagonally from one end to the other Fits: GY20850 John Deere 42 Inch Mower Blades Compatible with D130, D110, D105, S100, E100, E130, Z225, E120, LA115, E110, S130, LA105, S120, LA135 Lawn Tractors Fits: GX22151 John Deere 42 Inch Mower Blades Compatible with D100, D120, D125, LA100, LA110, LA120, LA125, S110, X105, X106, X107, X110, X120, X125, X126, X145, X305R, Z235, 102, 105, 115, 125, 135 Lawn Tractors Replaces John Deere 42 Inch OEM Part: UC21583, AM137333, AM141034, AM141031, M154062, M145970, AM137327, AM141032, AM137329, M149422 Important: Parts may vary even within the same mower model. Before ordering, verify your complete model number, deck size, and that your spindle uses a 7-point star mounting pattern. Fits: AM141033 John Deere Mower Blades 42 inch Deck Compatible with X300 (Only for 42" X Edge Deck (050001-); X304 (Only for 42" X Edge Deck (050001-); X310 (Only for 42” Edge Deck); X500 (Only for 42” Edge Deck); X520 (Only for 42” Edge Deck); SST15 (Only for 42C Deck); SST16 (Only for 42C Deck); LT160 (Only for 42C Deck); LT180 (Only for 42C Deck); S240 (PC12357, Only for 42C Inch (2/2) (-880000)) 1-Year Product Support: We provide one year of product support for manufacturing defects and product-related issues. To confirm your specific model fits: Check your mower's model number (usually on the side or under the seat). Look for the deck size (should say 42"). Verify your spindle has the 7-point star mounting pattern (most standard John Deere 42" decks do). Measure the blade length. Measure to make sure it matches the length of your old blade. Blade size is measured diagonally from the end of one cutting edge to another. Easy to instal: Before You Start. Safety first. Always disconnect the spark plug and wear protection gloves before starting any repair to ensure safety. Disconnect the spark plug before starting any repair to ensure safety. Raise the mower deck to its highest position for easier access. Loosen and remove the flange nut securing the old blade. Install the new blade, aligning it properly in place of the old one. Important: These require a 7-point star mounting pattern - verify your spindle type before ordering. Gator blades have curved, serrated edges that create finer mulch particles-better for decomposition. Installation: John Deere D130 Blades are designed for quick, hassle-free installation - the blades fit directly into place. Just remove the old blade, secure the new one, and your mower is ready for clean, efficient cutting. 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Installation: Designed for quick, hassle-free installation - the blades fit directly into place. Just remove the old blade, secure the new one, and your mower is ready for clean, efficient cutting. Sharpness: Each new blade is pre-sharpened but covered with safety paint that wears off during initial operation. For continued peak performance, the blade can be safely resharpened whenever the cutting edge becomes dull. Long-Term Durability: Made from premium, high-strength steel that keeps the cutting edge sharp and stable, ensuring long-lasting performance and extended blade life even under heavy use. Materials: Made from high-strength steel engineered for durability, stability, and long-lasting cutting performance, ensuring dependable results even under heavy mowing conditions. Thickness 0.164" Review: Quality product - Good quality blades. Great delivery. Review: WOW Blades - I bought these for my John Deere S130 mower. They were cheaper than the Deere OEM blades and seemed to have VG reviews with some reviewers noting how well they cut, so what the heck. At first glance they didn't appear the same quality as they were thinner and lighter than the Deere blades, but then I cut grass with them. The design is different than the OEM. I think it might be those rakes on the back edge, but they made a far superior job on my lawn. They did a much better job of distributing the clippings with fewer clumps. I waited until I had 3 cuts before leaving this review. My third cut I was away for a full week and the grass was long. The grass was wet, but I had to cut it as I was leaving again for another week. They still did a great job on heavy wet grass. I would buy these again. ## Features - Replaces OEM Part: John Deere GY20850, John Deere GX22151, John Deere AM141033 - GY20850 Mower Blades Dimensions: Length 21-3/8", Width 2-3/4", Center Hole 7-point star, Air Lift 1", Cutting Edge Length 5-7/16", Compatible Deck Size 42". The length of the blade is measured diagonally from one end to the other - Fits: GY20850 John Deere 42 Inch Mower Blades Compatible with D130, D110, D105, S100, E100, E130, Z225, E120, LA115, E110, S130, LA105, S120, LA135 Lawn Tractors - Fits: GX22151 John Deere 42 Inch Mower Blades Compatible with D100, D120, D125, LA100, LA110, LA120, LA125, S110, X105, X106, X107, X110, X120, X125, X126, X145, X305R, Z235, 102, 105, 115, 125, 135 Lawn Tractors - Replaces John Deere 42 Inch OEM Part: UC21583, AM137333, AM141034, AM141031, M154062, M145970, AM137327, AM141032, AM137329, M149422 - Important: Parts may vary even within the same mower model. Before ordering, verify your complete model number, deck size, and that your spindle uses a 7-point star mounting pattern. - Fits: AM141033 John Deere Mower Blades 42 inch Deck Compatible with X300 (Only for 42" X Edge Deck (050001-); X304 (Only for 42" X Edge Deck (050001-); X310 (Only for 42” Edge Deck); X500 (Only for 42” Edge Deck); X520 (Only for 42” Edge Deck); SST15 (Only for 42C Deck); SST16 (Only for 42C Deck); LT160 (Only for 42C Deck); LT180 (Only for 42C Deck); S240 (PC12357, Only for 42C Inch (2/2) (-880000)) - 1-Year Product Support: We provide one year of product support for manufacturing defects and product-related issues. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CPM69616 | | Customer Reviews | 4.6 4.6 out of 5 stars (3,173) | | Date First Available | 11 May 2024 | | Manufacturer | UDC Parts | | Package Dimensions | 55.6 x 8 x 4.9 cm; 2.34 kg | ## Images ![UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack - Image 1](https://m.media-amazon.com/images/I/71hsDO+7xAL.jpg) ![UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack - Image 2](https://m.media-amazon.com/images/I/71jRqj+fv4L.jpg) ![UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack - Image 3](https://m.media-amazon.com/images/I/71va-7D9u-L.jpg) ![UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack - Image 4](https://m.media-amazon.com/images/I/81h4GoM-+oL.jpg) ![UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack - Image 5](https://m.media-amazon.com/images/I/81YU7RMm1RL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality product *by C***S on 19 March 2026* Good quality blades. Great delivery. ### ⭐⭐⭐⭐⭐ WOW Blades *by R***D on 23 June 2026* I bought these for my John Deere S130 mower. They were cheaper than the Deere OEM blades and seemed to have VG reviews with some reviewers noting how well they cut, so what the heck. At first glance they didn't appear the same quality as they were thinner and lighter than the Deere blades, but then I cut grass with them. The design is different than the OEM. I think it might be those rakes on the back edge, but they made a far superior job on my lawn. They did a much better job of distributing the clippings with fewer clumps. I waited until I had 3 cuts before leaving this review. My third cut I was away for a full week and the grass was long. The grass was wet, but I had to cut it as I was leaving again for another week. They still did a great job on heavy wet grass. I would buy these again. ### ⭐⭐⭐⭐⭐ Double check fit! Great blades so far. *by F***R on 24 August 2026* Precision fit, high quality appearance and green powder coat. Came with. Thread lube . Sharp edges. These fit tight. Clean the decks inner edges-sides., hub/spindle, bearing, and mount pattern (5Star). Install one blade and carefully spin it several times, checking clearance. Clear enough tolerance so a bent deck edge on uneven rough ground doesn't catch a blade edge. Repeat for 2nd blade. I've only got about 2 acres cut on the new blades so a later review of quality, keeping a sharp edge, ease of sharpening and durability of powder coating may follow πŸ˜‰ Great value, so far, perfect! ## Frequently Bought Together - UDC Parts GY20850 Mower Blades for John Deere 42 Inch D105 D130 S100 S110 S240 X300 E100 E110 LA135 Replaces OEM no. AM141033 GX22151 AM131033 AM137333 / Gator Mulching Blades 2 Pack - John Deere L100 and D100 Series 42-inch Deck Mulch Cover GY00115 - John Deere Original Equipment Flat Belt - GX20072 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/664667134-udc-parts-gy20850-mower-blades-for-john-deere-42-inch](https://www.desertcart.hr/products/664667134-udc-parts-gy20850-mower-blades-for-john-deere-42-inch) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-30*