POSEAGLE GX21380 Replacement Blades for John Deere 54-inch Mower — 3-Blade Kit, Pre-Sharpened Medium-Lift with Nuts & Washers

POSEAGLE GX21380 replacement blades are a three-blade kit engineered to restore cutting performance on John Deere 54-inch mower decks, including matching nuts and washers for straightforward installation.

These POSEAGLE blades are made to mirror the original John Deere blade specifications so you can replace worn or damaged blades without worrying about fitment or additional hardware. Each blade arrives pre-sharpened and coated for corrosion resistance; the kit includes the correct blade nuts and washers so you're ready to install right away. The medium-lift, angled design balances grass pickup and mulching to help you get even cuts on a wide variety of turf conditions.

How do these blades match my John Deere 54-inch deck?

POSEAGLE designed the GX21380 kit to be directly compatible with multiple John Deere models and OEM part numbers. The blade dimensions and the 7-point star center hole match factory specifications to ensure secure mounting and correct blade-to-deck clearance.

• Replaces John Deere GX21380, GY20684, GY20679, GY20686
• Also compatible with Oregon 92-103 and 330-704 numbers
• Exact dimensions: 18-5/8" length, 2-5/8" width, 0.21" thickness, 1.3" air lift
• Includes 3x GX21694 blade nuts (5/8-18) and 3x M149625 washers (5/8)

What cutting performance can I expect with medium lift mulching blades?

The medium-lift profile lifts grass blades enough for an even cut while still directing clippings effectively into a bag or for mulching back into the turf. This balanced airflow minimizes clumping and reduces the need for repeated passes, helping save time on routine mowing sessions.

• Angled edge promotes consistent airflow for uniform cuts
• Medium lift moves clippings for bagging or mulching
• Pre-sharpened edges offer immediate cutting efficiency
• Coating resists rust during storage and first uses

How easy is installation and will I need extra parts?

Installation is straightforward because POSEAGLE supplies the exact blade nuts and washers specified for these blades. Each blade comes pre-sharpened and uses the standard 7-point star mounting, so you can swap them in using common hand tools and have your mower back in service quickly.

• Kit includes three blade nuts (GX21694) and three washers (M149625)
• Pre-sharpened blades reduce preparation time
• Protective coating helps prevent corrosion until first use
• No need to hunt for matching hardware or adapters

Will these blades fit different John Deere 100-Series tractors and garden tractors?

Yes — the POSEAGLE GX21380 blades are intended for several 54-inch John Deere decks across the 100 Series and other compatible tractors. Fitment covers a range of model numbers and specific part references to simplify choosing the correct replacement.

• Fits models like 190C, D170, LA150, LA175, E180, G110, S180 with 54-inch decks
• Cross-referenced to part numbers such as PC9539, PC10448, PC9635, PC9747
• Also compatible where D170 blade specifications apply
• Designed to maintain factory blade-to-deck clearance and balance

Who is this for? Homeowners and groundskeepers with John Deere 54-inch mower decks who need a reliable, OEM-compatible blade replacement kit that arrives ready to fit. Choose this three-blade POSEAGLE set if you want a direct-fit option with included hardware, pre-sharpened cutting edges, and a medium-lift profile that balances bagging and mulching for everyday lawn maintenance.