John Deere GY21943 Mower Deck Brake Pad is a John Deere equipment manufacturer (OEM) part designed to replace GY21390 and GY20825. This brake pad fits a wide range of John Deere models including 102, 105, 115, 125, 135L100, L105, L107, L108, L110, L111, L118LA100, LA105, LA110, LA115, LA120, LA125, LA135X110, X120Sabre - 14.542GS, 1642HS, 17.542HSScotts - L1742, and L17.542. It ensures reliable performance and compatibility with your mower deck. If you need assistance finding the right John Deere part or accessory, John Deere specialists are available Monday through Friday from 8:00 AM to 5:00 PM (EST) at 800-345-2396 or via email. Hartville Hardware strives to provide accurate part recommendations sourced from reliable systems, but because parts and compatibility can change without notice, contacting customer support is if you are unsure of the part needed. Model Number: GY21943