The Komatsu WA420-1 transmission valve gasket with part number 424-15-15993 (alternatively 4241515993) is designed to ensure a proper seal on the transmission hydraulic control valve of your heavy machinery.
Compatible Loader Models and Placement
This gasket fits the transmission valve blocks on the WA420-1, WA450-1, WA500-1, WA600-1, WA600-3, and WA700-1 wheel loader series. Preventing channel lines from mixing during valve body overhauls, this component must sit flush against the line profile to prevent pressure drops.
Important Notes for Installation and Replacement
During transmission valve gasket replacement, thoroughly cleaning the block surfaces from old gasket residue and tightening according to the torque sequence directly affects sealing quality. During assembly, ensure that the oil channels are not blocked and adhere strictly to the manufacturer's torque specifications.
You can create the correct order by comparing the 424-15-15993 number on your currently removed valve gasket with your transmission group's catalog reference.
