Carburetor
Walbro WYK-406
Also: WYK 406
1 compatible model
The Walbro WYK-406 is an aftermarket carburetor compatible with 1 model across 1 brand. It is a direct cross-reference for OEM part number A021001870. Compatible equipment includes Echo PB-770.
Verify before ordering: Fitment can vary by serial number, production date, region, and sub-model. Match the OEM number and physical dimensions before ordering.
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Compatible Models
| Brand | Model | OEM # | Confidence | Source | Reviewed | Evidence | |
|---|---|---|---|---|---|---|---|
| Echo | PB-770 | A021001870 | Medium | Aftermarket catalog | 2026-05-20 | Walbro WYK-345/WYK-406; 63.3cc professional backpack blower; also superseded by A021003940 | Backpack Blower |