Oregon 72-323 Anti-Scalp Deck Roller 3-7/8-Inch by 4-Inch

What It Is

The Oregon 72-323 is an anti-scalp deck roller designed to prevent the mower deck from scalping uneven terrain, helping maintain a consistent cut height. It’s a replacement or upgrade part for select EGO electric lawn mowers with a 3-7/8-inch diameter roller and 4-inch overall width.

Fitment & Compatibility

Before buying, verify your mower’s deck size and roller mounting system. This roller fits many EGO 20- to 21-inch mower decks (e.g., LM2100, LM2101, LM2102SP models) and some older 56-volt EGO models. Measure your existing roller: the Oregon 72-323 has a 3-7/8-inch outer diameter and 4-inch width, with a 5/16-inch center hole. Check that your deck uses a through-bolt or bracket mount—not a snap-in or proprietary clip. If your OEM roller is smaller or larger in diameter, this part may alter deck clearance. Oregon is aftermarket, not OEM EGO, so fitment may vary by production year; cross-reference with your mower’s model number on the Oregon website or contact support.

Key Things to Know

• Durability: Made from hard plastic (nylon), it resists cracking better than some OEM rollers but can wear faster on rough gravel or concrete.
• Installation: Easy—remove the old roller’s retaining bolt and washer, slide the new roller on, and re-tighten. No special tools needed.
• Height Impact: The 3-7/8-inch diameter is slightly larger than some EGO stock rollers (often 3.5 inches). This raises the deck anti-scalp height slightly, which may reduce scalping on bumpy lawns but also lower cut precision on flat turf.
• Common Gotcha: The center hole is 5/16-inch; if your mower uses a larger bolt (e.g., 3/8-inch), you’ll need a bushing or spacer—not included.

Should You Buy It

Buy this if your EGO mower’s stock anti-scalp roller is cracked, worn, or missing, and you want a slightly taller, more durable replacement for uneven lawns. Skip it if you need an exact OEM fit for a newer EGO model with a different mount or bolt size.