OTTO Excavator Spare Parts Zx450 6Wg1T Engine Oil Filler Cap Gasket 8943996890 894399-6890 8-94399689-0 For Isuzu OTTO Excavator Spare Parts: Engine Oil Filler Cap Gasket (P/N: Zx450 6Wg1T, 8943996890/894399-6890/8-94399689-0). Compatible with Isuzu excavators. High-quality replacement ensures a secure seal to prevent oil leaks. Durable material for long-lasting performance. Exact OEM fit.