Pump Piston 351 The deep sap groove on

The deep sap groove on the counter blade prevents sticking

using multi-layer high tenacity chainsaw protection fibres

Enzyme / microbial action: Breaks down organic stains at the molecular level — blood

reducing overall system length and minimising bulk — ideal for confined spaces

Pump Piston 351 The deep sap groove onSTIHL Pump Piston for 024 & 026 Chainsaws The STIHL Pump Piston (1121 647 0603) is a genuine STIHL replacement part designed to help maintain the performance and reliability of compatible STIHL petrol chainsaws. As an important internal component, this pump piston is engineered for a precise fit and dependable operation, making it a practical replacement for servicing or repairing worn oil pump related components on selected STIHL chainsaw models.