48" Deck Mower Blades Fit for Exmark Lazer Z CT HP Turf Tracer Radius E Quest Vantage Lawn Mower Replaces OEM 103-6401 103-6401-S(Notched High Lift) 3 Pack

What It Is

This is a 3-pack of 48-inch notched high-lift mower blades designed for commercial-grade Exmark zero-turn mowers. They are built for heavy-duty cutting and improved grass discharge on large properties or professional turf.

Fitment & Compatibility

Before buying, confirm your mower has a 48-inch deck (other deck sizes won’t fit). These blades are a direct aftermarket replacement for OEM part numbers 103-6401 and 103-6401-S. They fit Exmark models including: Lazer Z CT, Lazer Z HP, Turf Tracer, Radius, E-Series, Quest, and Vantage – but only with 48" decks. Measure your blade length (should be ~20 inches) and center hole diameter (typically 5/8” or 1”) to double-check. Notched high-lift blades are specific to decks requiring that notch for spindle clearance; verify your OEM blade has a notch before swapping.

Key Things to Know

• Installation difficulty: Moderate. You’ll need a socket wrench, torque wrench (torque to 70-90 ft-lbs), and a blade removal tool or block of wood to secure the blade. Lift the deck or remove the blades with the mower off and spark plug disconnected.
• Quality: These are aftermarket blades, not OEM Exmark. They are made from hardened steel but may not last as long under heavy commercial use. Expect ~20-30 hours of sharpness before needing replacement or sharpening.
• Common gotcha: The “notched” design is critical – if your deck uses non-notched blades, these won’t fit. Also, high-lift blades increase suction and discharge but can reduce lift on wet grass; avoid using them when the lawn is damp.
• Pack contents: Three blades only – no hardware (bolts, washers) included. Reuse your existing mounting hardware unless it’s worn.

Should You Buy It

If you own a 48" Exmark zero-turn and want a budget-friendly replacement for OEM blades, this 3-pack is a solid value for residential or light commercial use. However, for heavy daily commercial mowing, OEM blades will likely offer longer life and more consistent performance.