Overview Reviews Product Description Honda Original Parts. Head Gasket Steel .050" for the GX390Honda Part # 12251-Z1C-811 Product Videos Custom Field Product Reviews Write a Review Write a Review × Honda DJ-3310S Head Gasket, Honda GX390 Steel .050" Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *