All Balls Front Sprocket Rebuild Kit for KTM SX 250 03-16

The All Balls countershaft overhaul kit is a complete seal kit designed for KTM SX 250 models from 2003 to 2016. Ideal for riders looking to refresh their transmission and clutch seals for reliable performance during practice sessions and races.

• Brand: All Balls – specialized in drivetrain components and seals for KTM
• Application: KTM SX 250 03-16 (transmission / clutch seals)
• Contents: Various O-rings and seals, including main seals and mounting hardware (such as retaining rings and reinforcement components) to fully overhaul the countershaft assembly
• Material Characteristics: Durable rubber and seal materials resistant to oil, heat and vibrations
• Ease of Installation: Purpose-built for direct replacement; no additional parts needed, making maintenance faster and more reliable
• Technical Reference: Manufacturer part number MPN 25-4003 for simple identification and replacement

This overhaul kit offers a practical solution for repairing the seals around the countershaft, preventing oil leaks and keeping the transmission operating smoothly. Using the correct O-rings and seals allows you to maintain lubrication and pressure distribution within the gearbox, which helps extend the drivetrain’s service life and reduce downtime while riding.