See part O-1 in the diagram

Ring-Piston- Over Size 13012-YA2-003

Works with your model G400!

$107.64

Works with your model G400!

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This part works with the following brands:

This part works with the following products:

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This part works with the following models:

ERP Number: ERP9886829
Manufacturer Part Number: 13012-YA2-003

Brand	Model Number	Description
Honda	E3500K1	Generator - Generator
Honda	E3500K2	Generator - Generator
Honda	E4500	Generator - Generator
Honda	E4500K1	Generator - Generator
Honda	EB4000	Generator - Generator
Honda	EB4000A	Generator - Honda Generator Model EB4000A Parts
Honda	EM4000	Generator - Generator
Honda	EM4000A	Generator - Honda Generator Model EM4000A Parts
Honda	EMS4000	Generator - Generator
Honda	EMS4000A	Generator - Honda Generator Model EMS4000A Parts
Honda	EMS4500	Generator - Generator
Honda	EMS4500A	Generator - Honda Generator Model EMS4500A Parts
Honda	ES3500K1	Generator - Generator
Honda	ES3500K2	Generator - Generator
Honda	ES4500	Generator - Generator
Honda	ES4500K1	Generator - Generator
Honda	EV4000	Generator - Generator
Honda	EW170	Generator - Generator
Honda	G400	Engine - (Type VB6)(VIN# -1000001-1096409) Small Engine
Honda	G400K1	Engine - Small Engine
Honda	GV400	Engine - (Type ADJD)(VIN# -1000001-1006101) Small Engine
Honda	GV400K1	Engine - Small Engine
Honda	HT3810	Lawn Tractor - Sa Lawn Tractor, Jpn, Vin# -5000034 To -5099999 Series
Honda	HT3810K1	Lawn Tractor - Sa Lawn Tractor, Jpn, Vin# HT3810-5100001 To HT3810-5199999 Series
Honda	HT3810K2	Lawn Tractor - Sa Lawn Tractor, Jpn, Vin# HT3810-5200001 To HT3810-5299999 Series