[Exact OEM Part Numbers & Dimensions ] Directly replaces John Deere OEM part numbers GX20006 and UC30568. Precise dimensions: 0.50 inches wide x 88.90 inches long (1.27 cm x 225.8 cm) for an exact fit. [High-Strength Kevlar Cord Construction ] Built with a heavy-duty Kevlar (aramid) cord core for superior tensile strength, exceptional heat resistance, and minimal stretch, delivering longer life than standard belts. [D100, E100, LA100 Series Compatibility D100、E100、LA100] Fits John Deere riding mowers including D110, D120, D130, D140, D150, D160, D170; E110-E180; LA110, LA115, LA120, LA130, LA135, LA140, LA145, LA150, LA155, LA165, LA175. [L100 & Classic 100 Series Compatibility L100] Also compatible with L105, L107, L108, L110, L111, L118, L120, L130 and the classic numbered series: 105, 107, 115, 125, 135, 145, 155C. [S100, X100 Series & Sabre/Scotts Compatibility S100、X100] Fits S100, S110, S120, S130, S140, S160, S170, S180; X107, X110, X120, X125, X126, X127, X140, X145, X165, X166, X167 as well as some Sabre and Scotts models (e.g., Sabre 1642HS, Scotts L17.542). [Ensures Reliable Power Transmission ] Engineered for smooth and consistent power transfer to the mower's transmission, ensuring reliable operation, proper speed control, and efficient performance. [Pre-Installation Verification Checklist ] For guaranteed compatibility: 1) Match the part number (GX20006 or UC30568) on your old belt. 2) Confirm belt dimensions (0.5"x88.9"). 3) Verify your mower's exact model number. [Durable & Cost-Effective Replacement ] A high-quality, durable replacement that restores your mower's drive performance, offering excellent value and helping to avoid more costly repairs down the line. IMPORTANT NOTE: Please check the measures and your engine's model carefully before purchasing to guarantee that you receive the correct parts. Belt Application: Drive, Belt Type: Covered, Width: 1/2", Inside circumference: 87", Outside circumference: 89"