OTTO Excavator Parts Zx200 6Bg1 Valve Guide 1117210136 111721-0136 1-11721013-6 For Isuzu OTTO Isuzu ZX200 6BG1 Valve Guide 1117210136 – 100% genuine OEM-grade precision-machined valve guide for Isuzu 6BG1 engines. Bulk in-stock with fast global shipping, ideal for wholesale & agency partners. Superior wear resistance and airtight seal vs generic parts, cuts rework/returns, boosts resale margins. Stable cross-border B2B supply.