Rotary 11248 Mower Blades for Exmark 1036403(S) 1036393(S) 1036398 1036403(S) Length 20-1/2" Width 2-1/2" Thickness .240" Centerhole 15/16" 60" Deck

What It Is

The Rotary 11248 is a set of aftermarket mower blades designed for 60-inch Exmark zero-turn mowers. These blades are for mulching or standard cutting, replacing OEM part numbers 1036403, 1036393, and 1036398.

Fitment & Compatibility

Before buying, verify your deck is exactly 60 inches (measured blade tip to tip). These blades fit Exmark Lazer Z, Lazer Z X-Series, and Quest models with a 60-inch deck. Confirm your OEM blade number matches one of the listed Exmark numbers (1036403, 1036393, 1036398). The critical measurements: length 20-1/2", width 2-1/2", thickness .240", center hole 15/16". Measure your current blade—if any dimension differs, these won’t fit. These are not for 48", 52", or 72" decks.

Key Things to Know

• Quality: Rotary is a well-known aftermarket brand. Expect comparable durability to OEM, though some users report slightly faster dulling on sandy or rocky lawns.
• Installation: Straightforward bolt-on replacement. Use a torque wrench to tighten bolts to 70-90 ft-lbs (check your manual). No special tools needed, but a blade removal tool helps.
• Common gotcha: These blades are not universal—do not assume they fit all 60" Exmark decks. Always cross-reference your model number with Exmark’s OEM list.
• Balance: After installation, spin the blade by hand to check for wobble. Unbalanced blades cause vibration and uneven cuts.

Should You Buy It

If you have a 60-inch Exmark zero-turn and need a reliable, cost-effective replacement for OEM blades, this set is a solid choice. The price is competitive, and fitment is precise for listed models. However, if you mow heavy commercial loads daily or have very abrasive soil, consider OEM for longer edge life. For most residential or light commercial use, these will perform well.