This genuine OS Engines inner head button is designed specifically for the 12TG Version 5 engine, ensuring correct combustion chamber geometry and reliable engine performance. It is an ideal replacement part for maintenance, tuning, or rebuilds. Features Genuine OS Engines replacement component Designed for precise fit with 12TG Version 5 engines Supports consistent combustion and engine efficiency Ideal for servicing or performance maintenance Specifications Part type: Inner head button Engine compatibility: 12TG Version 5 Brand: OS Engines SKU: OSM2ED04100 Barcode: 4531028166431 Shipping weight: 0.1000kg Shipping dimensions: 0.050m x 0.020m x 0.100m Shipping cubic: 0.000100000m3 Includes One OS Engines inner head button Important Notes Ensure engine compatibility before installation Installation should be performed by experienced users