4F5409 Inner Valve Spring Fits Caterpillar Industrial Construction Models
4F5409 Inner Valve Spring Fits Caterpillar Industrial Construction Models
Couldn't load pickup availability
One New Aftermarket Replacement Inner Valve Spring Fits Caterpillar (Fits CAT) Industrial and Construction Engines
This aftermarket replacement inner valve spring fits the cylinder head valve train on Fits Caterpillar D-series industrial, construction, and gas engines. The inner spring works in conjunction with the outer valve spring to keep intake and exhaust valves firmly seated against the valve seat during operation, preventing blow-by and maintaining compression. Replacing worn or fatigued valve springs at overhaul is essential for restoring proper engine breathing and performance.
Compatible Models
Fits Caterpillar Industrial Engines: D342, D342C, D353C, D353E, D364, D375, D375D, D379, D379A, D397D, D398, D398A, G353D, G379, G398
Fits Caterpillar Track-Type Tractors: D8H, D9E, D9G
Fits Caterpillar Motor Graders: 14G, 16G
Fits Caterpillar Scrapers: 621B, 637D, 637E, 651E
Note: Models D7C, D8D, and D9D are listed in catalog data but not confirmed by OEM parts reference -- verify fitment before ordering.
Replaces Part Number(s):
4F5409, ENL80-0203
New aftermarket replacement part - not remanufactured, not used.
