Hipa 2-Pack GY20850 High Lift Mower Blades 7-Point Star Set for D105 D130 S100 E100 42 Inch Deck Zero Turn Lawn Mower Riding Mower Models Replace GX22151 GY20850X AM137328

What It Is

The Hipa 2-Pack GY20850 High Lift Mower Blades are aftermarket replacement blades designed for 42-inch cutting decks on select John Deere riding mowers and zero-turn models. They use a 7-point star center hole and a high-lift profile to improve grass discharge and bagging performance.

Fitment & Compatibility

Before buying, confirm these three things:

• Deck size: Fits only 42-inch decks. Measure your deck width to be sure.
• Blade pattern: Must be a 7-point star center hole (not a 5-point or oval). Check your existing blade’s center hole shape.
• Model compatibility: Listed for D105, D130, S100, E100, and zero-turn models using GY20850, GX22151, GY20850X, or AM137328 OEM blades. Verify your model number in the owner’s manual or by matching the OEM part number.
• Dimensions: Blade length is typically 21 inches with a 1-inch center hole and 0.25-inch thickness. Measure your old blade if unsure.

Key Things to Know

• High-lift design increases air flow for better bagging and discharge but may cause more wear on the engine and deck in dry, dusty conditions.
• Installation difficulty: Easy if you have a socket wrench and blade removal tool. Torque bolts to 70–90 ft-lbs. Use thread locker to prevent loosening.
• Quality note: At 3.7 stars, some users report slight balance issues out of the box. Check blade balance before installing to avoid vibration.
• Two-pack value: $24.77 for two blades is cheaper than OEM singles. Replace both blades at the same time for even cutting.

Should You Buy It

If you own a compatible 42-inch John Deere and need affordable, high-lift blades for bagging or heavy discharge, this two-pack is a solid budget pick. Just balance-check them before installation. If you prioritize OEM fit or cut in very dry conditions, consider a standard-lift blade instead.