Greenworks 7512902, Bagger Blade for 42" ZTR and Tractor, Green, Pack of 2

What It Is

The Greenworks 7512902 is a set of two bagger blades designed for 42-inch zero-turn mowers (ZTR) and tractors. They are optimized for use with bagging attachments, creating a vacuum-like lift to efficiently collect clippings rather than mulching or side-discharging them.

Fitment & Compatibility

• Deck size: Only for 42-inch cutting decks. Do not use on 46" or 54" decks.
• OEM vs aftermarket: These are Greenworks OEM replacements, not universal or aftermarket. They fit select Greenworks 42" ZTR and tractor models (e.g., 24202, 24252, 24322, and similar). Check your model number against Greenworks’ compatibility list.
• Measurements: Each blade is approximately 20.5 inches long, with a 5-point star center hole (1-inch diameter) and 0.25-inch thickness. Verify your existing blade’s length, center hole shape, and thickness before ordering.
• What to check: Confirm your mower uses a 5-point star spindle mount (not a round hole or keyed shaft). Also verify blade offset—bagger blades often have a higher lift angle than standard blades.

Key Things to Know

• Installation: Straightforward if you have a socket wrench and blade removal tool. Torque to 70-80 ft-lbs. Left-hand threads on some spindles—check your manual.
• Lift vs. mulching: These are high-lift blades. They improve bagging performance but will not mulch well. Do not use for side-discharge if you want fine clippings.
• Durability: Heat-treated steel with a painted finish. Expect 25-50 hours of life on standard residential lawns before sharpening or replacement.
• Gotcha: If your mower currently has mulching or low-lift blades, switching to these may increase engine load slightly—monitor belt tension and deck vibration after swap.

Should You Buy It

Buy these if you own a compatible Greenworks 42" ZTR or tractor, primarily bag clippings, and want OEM-spec replacement blades that maintain optimal lift for collection. Avoid if you mulch or side-discharge exclusively, or if your deck uses a different spindle mount.