Mower Blades AM137328 / AM141032 / AM141033 for John Deere 42-Inch Deck

Overview

These aftermarket 2-Pack Mower Blades AM137328 / AM141033 / GY20850 for John Deere 42-Inch Deck use a conventional solid-sail blade profile with a smooth trailing edge and six-point star center hole. They are not toothed or Gator-style blades.

The supplier cross-references this blade set to multiple John Deere standard, bagging, and mulching blade numbers within the same 42-inch deck family. Use this listing when your original blade number matches 490-110-0140, AM137327, AM137328, AM137329, or another replacement number listed below, and your deck uses the same blade length, center-hole style, blade count, deck size, and blade layout.

Key Features

• Aftermarket mower blade set for select mower deck applications
• Available pack quantities: 2-Pack
• Replacement path: 490-110-0140 / AM137327 / AM137328 / AM137329 / AM137330 / AM137333 / AM141031 / AM141032
• Common deck size: 42 inch
• Blade length: 21-3/8 inch
• Use the original blade number and physical measurements to confirm fitment

Compatible Brands & Model Series

This blade set is used on select John Deere mower deck applications with 42 inch decks.

Source fitment examples:

• John Deere: Lawn Tractor: L100, L105, L107, L108 42c"L110, L111, 107s 42c"Lt180, Lt160, L118 42-inch deck
• John Deere: Spin Steer Lawn Tractor: Sst15, Sst16 42-inch deck
• John Deere: Select Series Tractor:X300, X304 42x"X300r, X305r 42-inch deck
• John Deere: X324 ( - 050000) 42-inch deck
• John Deere: 100 Series Tractor:102, 115, 125, 135, La100 42x"D100, D105, D110, D120 42c"D125, D130, E100, E110 42c"E120, E130, X145 42c"La105, La115, La125, La135 42c"La110, La120, X110, X120 42x"S100, S110, S120, S130 (S.N. -500000) 42c"S100, S110, S120, S130 (S.N. 500001-) 42x"X105, X106, X107 42-inch deck
• John Deere: X125, X126, X127, 105 42-inch deck
• John Deere: Multi-Terrain Tractor:X500, X520 42x"Sport Lawn Tractor: S240 42x"EZtrak Residential Zero-Turn Mower: Z225 42-inch deck, Z235 42c"Sabre Lawn Tractors:1338g, 1538h, 1546g, 1638hs, 1646h 42-inch deck

Fitment note: Model names, deck sizes, and serial ranges are provided as fitment clues. Match the original blade number, blade length, center-hole style, blade count, deck size, and mower model before ordering.

Replaces OEM Part Numbers

• 490-110-0140
• AM137327
• AM137328
• AM137329
• AM137330
• AM137333
• AM141031
• AM141032
• AM141033
• AM141034
• GX22151
• GY20850
• M149422
• M154061
• M154062
• UC21583
• AM141037
• GM149625
• M149625
• GX21694
• M145968
• M145969
• M74175

Blade Specifications

• Blade length: 21-3/8 inch
• Blade width: 2-1/2 inch
• Blade thickness: 0.21 inch
• Common deck size: 42 inch

Common Symptoms of Worn Mower Blades

• Uneven cut quality
• Grass tearing instead of cutting cleanly
• Visible blade wear, cracks, bends, or rounded cutting edges
• Deck vibration from bent or unbalanced blades

Quick Ship Fulfillment

This item may ship directly from one of our trusted U.S. distribution partners to help reduce transit time. Packaging, labeling, or warehouse origin may vary, but the part will match the replacement numbers, fitment notes, and specifications shown in this listing.

Why Buy From PTO Direct USA

• Focused replacement parts for mower deck and PTO repair
• Part-number-first listings to help reduce fitment mistakes
• Clear replacement numbers and fitment notes before you order
• Fast, practical support if you need help checking compatibility

Need Help Confirming Fitment?

If you are not sure whether this blade set fits your mower, send us your mower model number, deck size, and the part numbers from your original blades. We can help you compare them before you order.

FAQ

Will this fit all 42 inch decks?

No. This blade set fits select applications only. Match your original blade number, blade length, center-hole style, deck layout, and mower model before ordering.

Which package quantity should I choose?

Choose the pack quantity that matches your deck blade count and the number of complete blade changes you want to keep on hand.

What should I check before installing?

Compare blade length, center-hole pattern, lift style, deck layout, and original blade number against your mower or OEM diagram. Stop installation if the blades do not match your original setup.