Individual Service Parts Home / Yanmar / Yanmar GM's / 1GM, 1GM10 / Individual Service Parts / Yanmar 128170-01331 Head Gasket 1GM Yanmar 128170-01331 Head Gasket 1GM Yanmar 128170-01331 Head Gasket 1GM £22.50 Stock Status: In Stock Information Specifications Part numbers for reference only. We supply quality replacement parts to save you £££'s Yanmar 128170-01331 Head Gasket 1GM (7.5hp cylinder head gasket this fits the earlier 1GM (7.5hp 1980-1983)) which has a smaller diameter cylinder bore. Please Note This fits older 1GM models, NOT 1GM10 see below SKU: S710600001001 Brand: MSK Yanmar Product Code: S710600001001 Weight: 0.2kg Related Products Yanmar 1GM10 Cylinder Head Gasket 128171-01911 £26.99