Maxpower 17" 3-N-1 Replacement Mower Blades 3-Pack – USA Made, 7-Point Star Hole for John Deere 48" Decks

Maxpower 561812B is a three-pack of USA-made 3-N-1 17-inch replacement mower blades engineered to fit many 48-inch John Deere decks that use OEM AM137757, AM141035, GX21784 or GY20852.

These replacement blades are designed to match or exceed original equipment specifications and restore cutting performance for compatible American-made lawn tractors. Each blade measures 17 inches long by 2-3/4 inches wide and features a 7-point star center hole for a secure fit. This product listing helps you confirm fitment and understand the features so you can replace worn or damaged blades with confidence.

How do these blades match my John Deere 48" mower?

The Maxpower 561812B set is built to replace specific OEM part numbers commonly found on many John Deere 48-inch cutting decks. The star-shaped center hole and exact length and width are made to align with factory mounting and blade geometry for proper clearance and secure fastening.

• Direct OEM replacements: AM137757, AM141035, GX21784, GY20852
• Dimensions: 17" length × 2-3/4" width for correct deck fit
• 7-point star center hole to match factory blade spindles

What cutting styles and results can I expect from 3-N-1 blades?

3-N-1 blades are versatile: they can mulch grass clippings, discharge them to the side, or create a tear-in effect for improved collection, depending on deck configuration and mower speed. These blades have flared cutting surfaces that lift grass before slicing, aiding even distribution and consistent finish.

• Mulching capability for finer clippings when used with compatible deck settings
• Side discharge operation possible for quicker clipping evacuation
• Designed to lift and cut for a cleaner, more uniform cut

Are these blades durable and safe to use?

Maxpower manufactures these blades in the USA to meet or exceed OEM specifications, focusing on material strength and consistent geometry for long life and safe operation when installed correctly. Regular inspection for nicks, bends, or damage and using correct mounting hardware are essential for safe use.

• Constructed to OEM-equivalent standards for strength and balance
• Made in the USA to ensure consistent manufacturing practices
• Inspect and replace blades if bent, cracked, or excessively worn

How do I verify these blades will fit my mower before ordering?

Confirming fit is simple: check your mower blade OEM number in the owner’s manual or remove an existing blade and compare part numbers. Also verify that your deck accepts 17" × 2-3/4" blades with a 7-point star center mounting hole.

• Locate OEM number on current blade or in the owner’s manual
• Measure blade dimensions and check the 7-point star center hole
• Compare to listed compatible OEM numbers: AM137757, AM141035, GX21784, GY20852

Who is this for: The Maxpower 561812B three-pack is aimed at homeowners, landscapers, and maintenance professionals who own John Deere lawn tractors with a 48-inch deck that requires a 17" 3-N-1 blade with a 7-point star center hole. If you’re seeking a USA-made replacement that meets OEM geometry and offers mulching and discharge versatility, this blade set is a direct-fit option to restore cutting performance and deck functionality.