1321222 Rotor As Fits Caterpillar Models
1321222 Rotor As Fits Caterpillar Models
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One New Aftermarket Replacement Alternator Rotor Assembly for Caterpillar (Cat) Construction and Industrial Equipment
This alternator rotor assembly (Rotor As) is the spinning electromagnetic core inside the alternator's charging system on Caterpillar (Cat) equipment. The rotor generates the magnetic field that the stator converts into electrical current, keeping batteries charged and all onboard electrical systems powered during operation. Replacing a worn or failed rotor restores proper charging output and prevents costly electrical downtime on the job site.
Compatible Models
Caterpillar Engines: 3116, 3126B, 3176C, 3196, 3412
Caterpillar Excavators: 320B, 325B L, 330B L, 345B L, 350, 365B, 365B II
Caterpillar Pipelayers / Tractors: 539, 561M, 561N, 572R
Caterpillar Motor Graders / Scrapers: 814B, 814F, 815B, 815F, 816F, 824C, 824G, 824G II, 825G, 825G II
Caterpillar Wheel Loaders: 938G, 950G, 950G II, 953B
Additional Cat models may apply - verify fitment by OEM part number before ordering.
Replaces Part Number(s):
1321222
New aftermarket replacement part - not remanufactured, not used.



