5I7721 Rocker Arm Shaft Spring Fits Caterpillar Fits CAT Industrial Models
5I7721 Rocker Arm Shaft Spring Fits Caterpillar Fits CAT Industrial Models
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One New Aftermarket Replacement Rocker Arm Shaft Spring Fits Caterpillar (Fits CAT) Industrial and Construction Equipment
This aftermarket replacement rocker arm shaft spring Fits Caterpillar (Fits CAT) 3064 and 3066 diesel engines. The rocker arm shaft spring is a valvetrain component that maintains proper tension and positioning of the rocker arm assembly on the shaft, supporting consistent valve actuation and engine performance. The Fits Caterpillar 3064 and 3066 are four-stroke diesel engines also known as Fits Mitsubishi-manufactured engines, found in a range of Fits CAT excavators and other heavy construction equipment.
Compatible Engine Models
Fits Caterpillar Engine: 3064, 3066
Typical Equipment Applications
Fits Caterpillar Excavators (powered by 3064 or 3066 engine): 311B, 311C, 312B, 312B L, 312C, 314C, 314C CR, 314C LCR, 318B, 318C, 320B, 320B L, 320C, 321C
Replaces Part Number(s):
5I7721, 5I-7721, ENL80-0173
New aftermarket replacement part - not remanufactured, not used.
