Push Rod Tube Bottom Seal, for use on BSA Models: C15. Triumph models: T20 CubO.E.M: 70-3391 / E3391Supplied: SinglesBSA C15 & Triumph T20 Cub Push Rod Tube Bottom Seal, 40-0180 / 70-3391. GAS270ASKU: 70-3391 / E3391£2.99PriceQuantity*Add to Cart