A-AR55827-AI Voltage Regulator
A-AR55827-AI Voltage Regulator
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One New Aftermarket Replacement Internal Voltage Regulator Fits John Deere (Fits JD) Tractors and Equipment
This aftermarket replacement internal voltage regulator replaces OEM part number AR55827 and is Fits Delco (Fits Delco-Remy) 10SI, 12SI, and 15SI internally regulated alternator systems used across a wide range of Fits John Deere (Fits JD) tractors, combines, skid steers, and construction equipment. The regulator mounts inside the alternator and controls charging output to maintain proper system voltage.
Specifications
- Voltage: 12 Volt
- Type: Internal (inside alternator)
- Alternator Compatibility: Fits Delco (Fits Delco-Remy) 10SI, 12SI, 15SI
- OEM Alternators: AR54793, AR54796, AR56728, AR84306
Compatible Models
Fits John Deere Tractors: 4030, 4040, 4050, 4230, 4240, 4250, 4320, 4430, 4440, 4450, 4620, 4630, 4640, 4650, 4840, 4850, 6030, 7020, 7520, 8430, 8630
Note: Fits John Deere 4000 and 4020 tractors, this regulator applies to units with serial number 201,000 and up (Fits Delco alternator-equipped machines). Earlier serial numbers used a 24-volt generator system and require a different regulator.
Fits John Deere Skidders: 440C
Replaces Part Number(s):
AR55827, A-AR55827
Aftermarket Interchange Numbers
A-NR-161
New aftermarket replacement part - not remanufactured, not used.



