Piston & Ring Set for STIHL BR500 BR550 BR600 BR700

Replacement piston and rings engineered for STIHL BR500, BR550, BR600 and BR700 blowers. Built for reliable fit and extended service life, this kit combines advanced surface treatments and precision machining to protect your engine. Multi-layer, dual-phase coating minimizes carbon adhesion in high-resin operating environments. Active oil management features tapered oil ring edges to prevent cylinder glazing during rapid throttle changes. Thermal stability is improved by honeycomb chambers that dissipate heat 22% faster than conventional designs. CNC-machined skirt profiles ensure precise compatibility and reduce cylinder wall scuffing by 40%. Regrindable ring surfaces allow reconditioning and extend service intervals by 3x.