Parts Camp 3 Pack GX21786 GY20852 Lawn Mower Blades High Lift Blade GX21784 GX21785 AM137757 AM141035 Replace John Deere D140, D150, D160, E140, E150, LA130 Fit 48" Mower Deck- 7 Point Star Hole

What It Is

This is a 3-pack of high-lift lawn mower blades designed to replace OEM parts on select John Deere models with a 48-inch mower deck. High-lift blades create stronger airflow for improved grass clipping discharge and bagging performance, making them ideal for tall or dense grass.

Fitment & Compatibility

Before buying, verify your mower deck is exactly 48 inches (measured blade tip to blade tip). These blades fit John Deere D140, D150, D160, E140, E150, and LA130 models with a 48” deck. They replace OEM part numbers GX21786, GY20852, GX21784, GX21785, AM137757, and AM141035. The blade mounting hole is a 7-point star pattern—common on John Deere spindles. Measure your current blade length (these are typically 20.5 inches) and check the center hole shape. If your spindle uses a round hole or different star pattern, these won’t fit.

Key Things to Know

• Quality: These are aftermarket blades, not OEM John Deere. Expect similar thickness and steel composition, but finish and balance may vary slightly.
• Installation: Easy if you’ve changed blades before. Use a blade removal tool or block the blade to prevent spinning. Torque the center bolt to 40-50 ft-lbs (check your manual). The star hole aligns easily—no adapters needed.
• Common Gotchas: High-lift blades increase engine load and may cause more vibration if the deck is not level. They also require more power, so avoid using them on wet or overgrown grass to prevent bogging. Always sharpen new blades before first use—factory edges are often dull.
• Fitment Double-Check: If your mower has a 48” deck but a different model number (e.g., L130 or X300), measure blade length and hole pattern first. These blades are not universal for all 48” John Deere decks.

Should You Buy It

Buy this 3-pack if you own a listed John Deere model with a 48” deck, want better bagging performance, and are comfortable with aftermarket parts. It’s a good value for the price, but skip it if you prefer OEM parts or need blades for a different deck size or spindle pattern.