603907 Lawn Mower Pump Drive Belt Heavy-Duty Kevlar Aramid Cord Belt Replacement for Hustler Raptor Raptor Limited Raptor SD 603907 Lawn Mower Pump Drive Belt Heavy-Duty Kevlar Aramid Cord Belt Replacement for Hustler Raptor, Raptor Limited, Raptor SD, Raptor SDX Mowers, Replaces for 607400, 603907 (1/2" x 51") Strong Compatibility: 51" L x 0.5" W Hydraulic Pump Belt Fits for Hustler Raptor, Raptor Limited, Raptor SD, Raptor SDX Mowers. Directly replaces OEM part numbers 603907, 607400, 607400-A, 14939, and Stens 265-699. Please verify part number and size before purchase. Kevlar-Reinforced for Maximum Strength: Built with ultra-durable Kevlar (Aramid) cords that outperform standard polyester or rubber cords. Withstands sudden shocks, high torque, and emergency stopsno stretching or snapping. Engineered for Harsh Conditions: Constructed with premium Neoprene rubber for superior resistance to sun, heat, oil, and lawn chemicals. Stays strong and flexible season after seasonunlike belts that dry out and crack. Cogged Design for High Efficiency: Precision cogged profile delivers greater friction, superior transmission efficiency, and quiet performance. Reduces slippage, increases torque delivery, and extends belt life. Easy Installation & Long-Term Reliability: Install in minutesno special tools needed. Run belt for 10 minutes after installation and recheck tension. (Maintenance Tips: Inspect monthly for signs of wear or cracking. Replace every 12 months for best performance.)