6PK Oregon 93-011 Heavy Duty Blades for 61" Spartan 438-0002-00

What It Is

This is a six-pack of Oregon’s heavy-duty mower blades (model 93-011) designed for 61-inch zero-turn mowers, specifically as a replacement for the OEM Spartan 438-0002-00 blade set. They’re built for tough, high-volume cutting on commercial-grade turf or rough residential properties.

Fitment & Compatibility

Before buying, confirm your mower has a 61-inch cutting deck—these blades are not for smaller decks. They are direct replacements for Spartan models using OEM part 438-0002-00 (e.g., Spartan SRT, RT, or RZ series with 61” decks). Measure your existing blade’s length (should be roughly 20.5 inches), center hole diameter (typically 1 inch), and thickness (0.25 inch). Oregon’s 93-011 blades have a 1-inch center hole and a 0.25-inch thick body. If your deck uses a different blade pattern or offset, these won’t fit. They are aftermarket, not OEM, but Oregon is a trusted brand with consistent specs.

Key Things to Buy

• Quality: Oregon’s heavy-duty line uses heat-treated, hardened steel that lasts longer than standard blades. They resist bending on rocks and roots better than thin stamped blades.
• Installation: Medium difficulty. You’ll need a socket wrench and a blade removal tool (or block the blade). Torque bolts to 70–90 ft-lbs. Always check spindle direction (most are left-hand thread on the left side of the deck).
• Common gotchas: These blades are heavier than standard, so your deck may vibrate more if not balanced. Use a blade balancer after install. Also, they may require re-sharpening after heavy use—Oregon blades take a file well but are tough on grinders.
• Six-pack value: If you have a 3-blade deck (typical for 61”), this gives you two full sets. Rotate sets to extend life—swap every 25 hours or when dull.

Should You Buy It

Yes, if you own a Spartan 61-inch zero-turn and want a durable, cost-effective alternative to OEM blades that can handle thick grass, debris, or extended mowing sessions. The six-pack price per blade (~$15.60) is cheaper than buying OEM singles, and the heavy-duty construction justifies the upgrade for commercial or heavy residential use. Skip it if you need exact OEM fitment or prefer lighter blades for low-horsepower decks.