All Balls 18-9004 Rear Brake Caliper Piston Rebuild Kit

The All Balls 18-9004 Rear Caliper Piston Kit delivers superior performance and longevity compared to OEM plastic composite and chrome-plated pistons. Precision-machined from high-grade 304 stainless steel, these pistons provide exceptional durability and resistance to corrosion that commonly affects factory aluminum and steel components.

Key Features:

• Precision machined from high-grade 304 stainless steel for maximum durability
• Reduces thermal conductivity by up to 93% compared to aluminum pistons
• Superior corrosion resistance versus OEM chrome-plated steel and aluminum
• Eliminates age-related brittleness and damage common with plastic composite pistons
• Removes failure-prone ceramic inserts found on select KTM models
• Complete kit contains all pistons needed to rebuild one caliper

This rebuild kit provides a cost-effective solution to restore rear brake caliper performance while offering enhanced reliability over original equipment components. The stainless steel construction ensures long-term performance even in harsh riding conditions.