OTTO Excavator Parts Ex200-3 6Bg1T Valve Spring Big 1125610986 112561-0986 1-12561098-6 For Isuzu OTTO Isuzu EX200-3 6BG1T Valve Spring Big 1125610986 – 100% genuine OEM excavator part, perfect fit for Isuzu 6BG1T engines. Bulk in-stock, fast global shipping. Superior elasticity & fatigue resistance vs aftermarket big springs, cuts rework & returns, boosts resale profits for wholesalers & agents.