Tube/bends › Stainless Steel O2 Oxygen Lambda Sensor Boss Image 1 of 1 Stainless Steel O2 Oxygen Lambda Sensor Boss £5.99 Stainless Steel Lambda Boss Nut M18 x 1.5mm100% Stainless Steel M18 x 1.5mm Lamba nut.. Quantity: Add To Cart Added! Stainless Steel Lambda Boss Nut M18 x 1.5mm100% Stainless Steel M18 x 1.5mm Lamba nut..