March 21, 2022

Aisin Seiki AS66RC, AS69RC Identification Guide

Secondary Pressure Regulator Valve Lineup Identification

IDNameAS66RC GasAS69RC Diesel
ASecondary PR Boost Sleeve I.D..257".323"
BSecondary Boost Valve O.D..255".321"
CSpring Free Length1.59"1.42"
DBalance End of Secondary Valve.382".332"

Sonnax Secondary PR Plunger Valve Kit122740-03K122740-05K

Sonnax Oversized Secondary PR Valve Kit122740-24K122740-28K
NOTE: Upper and lower valve body casting numbers are the same on AS66RC and AS69RC.
AS66RC GasAS69RC Diesel
Aisin Seiki AS66RC Gas Secondary Pressure Regulator Valve LineupAisin Seiki AS69RC Diesel Secondary Pressure Regulator Valve Lineup

Separator Plate Identification

AS66RC GasAS69RC Diesel
Aisin Seiki AS66RC Gas Separator PlateAisin Seiki AS69RC Diesel Separator Plate


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