WT-946 Carburetor for Echo CS-310 Chainsaw and Compatible Lawn Mowers Why you need this - Restores reliable starting and smooth idle by delivering consistent fuel metering. - Direct OEM replacement that matches Echo CS-310 mounting and performance. - Replaces the original part number A021001700 for easy sourcing and installation. - Designed to meet factory specifications for dependable, long-lasting operation. Compatibility and fit - Echo CS-310 chainsaw carburetor compatible with serial ranges C04511001001-C04511999999; C04612001001-C0461299999; C04713001001-C047713001001-C0477710001. - Also suitable for specified lawn mower models with serial ranges 139999 999 and C23926001001-C2392699999. What makes it stand out - OEM-spec design ensures a precise air-fuel mix and reliable performance. - Easy installation with mounting interface that matches the original carburetor. - Broad compatibility covers multiple Echo CS-310 units and related lawn mower models, reducing downtime and stock needs. Use scenarios - Scenario 1: Replacing a worn or failing carburetor on an Echo CS-310 to restore easy starting and steady idle. - Scenario 2: Servicing yard equipment by swapping in WT-946 on compatible lawn mowers to restore consistent fuel delivery. - Scenario 3: Inventorying spare parts in a workshop to ensure quick replacement with an OEM-aligned carburetor when needed.