NEW Idler Pulley fits John Deere LA120 42" Deck GY20110 Replacement

42" MOWER DECK IDLER PULLEY — FITS JOHN DEERE LA100 SERIES
Direct replacement idler pulley for John Deere 42" lawn tractors. Designed to restore proper belt tension, smooth operation, and dependable deck performance.

Replaces OEM Part Numbers

John Deere:
GY20110, GY20629, GY22082

(Verify your OEM number before ordering to ensure proper fit.)

Fits the Following Models

John Deere 42" Riders:
• LA100
• LA105
• LA110
• LA115
• LA120
• LA125
• LA135
• 102
• 105

Pulley Specifications

• Height: 1-3/4"
• Inner Diameter (ID): 11/16"
• Outer Diameter (OD): 5-1/8"
• Heavy-duty steel construction
• Designed to meet or exceed OEM performance

If you're unsure of compatibility, message us your full model & serial — we’ll confirm quickly.

Family Owned • American Operated — Based in South Carolina
Our team has over 90 years of combined experience in outdoor power equipment.