2-Pack Mower Blades 21546095 / 917138498MS / 917532138498 for Ariens / AYP 42 Inch Deck
Overview
These aftermarket 2-Pack Mower Blades 21546095 / 917138498MS / 917532138498 for Ariens / AYP 42 Inch Deck are replacement mower blades for select Ariens, AYP mower deck applications using the listed replacement blade number path.
Use this listing when your original blade number matches 21546095 / 917138498MS / 138971X431 / 340-282 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: 21546095 / 917138498MS / 138971X431 / 340-282 / 5321389-71 / 340-266 / 340-054 / PP24001
- Common deck size: 42 inch
- Blade length: 21 inch
- Use the original blade number and physical measurements to confirm fitment
Compatible Brands & Model Series
This blade set is used on select Ariens, AYP mower deck applications with 42 inch decks.
- Ariens: select mower deck applications using the listed blade numbers
- AYP: select mower deck applications using the listed blade numbers
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
- 21546095
- 917138498MS
- 138971X431
- 340-282
- 5321389-71
- 340-266
- 340-054
- PP24001
- PP24003
- PP24004
- 531005085
- 531307223
- 91724676
- 954636867
- 594893101
- 531307224
- 532134149
- 917127843
- 917139775P
- 917131323
- 532139775
- 532127843
- 704429
Blade Specifications
- Blade length: 21 inch
- Blade width: 0.157 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.