MowerPartsGroup (6) Mower Blades for Exmark Quest 50" Deck E and S Series Replaces 115-5059-03

What It Is

This is a set of six aftermarket mower blades designed specifically for Exmark Quest 50" decks (E and S Series). They replace OEM part 115-5059-03 and are meant for regular cutting and mulching on residential or light commercial properties.

Fitment & Compatibility

• Deck size: Only fits Exmark Quest 50" cutting decks. Measure your deck width (blade tip to tip) to confirm.
• Model series: Compatible with both E Series and S Series Quest mowers. Check your model number (e.g., QZE, QZS) to be sure.
• OEM replacement: Direct fit for Exmark part 115-5059-03. No modification or adapter needed.
• Measurements: Each blade is approximately 20.5 inches long, 2.5 inches wide, with a 1-inch center hole and 7/16-inch offset. Measure your old blade’s length, width, and hole size to verify.
• Quantity: Sold as a set of six (two per spindle, three spindles total). Do not mix with other blade types on the same deck.

Key Things to Know

• Installation difficulty: Moderate. You’ll need a socket wrench and a blade removal tool (or a block of wood to hold the blade). Torque to 70-90 ft-lbs.
• Material: Made from heat-treated carbon steel. Not as durable as OEM hardened steel but acceptable for residential use.
• Sharpness: Come sharp out of the box but may require a touch-up with a file for optimal cut quality.
• Gotcha: These blades are slightly lighter than OEM, which can cause vibration if not balanced. Check balance before installing using a blade balancer.

Should You Buy It

If you own an Exmark Quest 50" E or S Series and need a budget-friendly set of six blades for regular mowing on less than 2 acres, this is a solid value. Avoid if you need extreme durability for commercial daily use or want OEM-exact weight and balance.