Aftermarket Denso Voltage Regulator IN3300

Specifications MFR:DENSO FEATURE 1:100% New SPECS FOR: For Denso Alternators SPECS:12 Volt/14.3 Set Point, B-Circuit USED ON Chrysler - Europe (2011-2017) ** Dodge - Europe (2007-2012) ** Fiat - Europe (2011-2017) ** Jeep (2014-2018) ** Jeep - Europe (2006-2016) Replaces Denso 126600-3300, Original Reference Number 1123-108RS LESTER NUMBERS 20392, 20393, 20402, 20917 UNIT NUMBERS Chrysler 04727866AB, 04801338AB, 04801835AB, 04801835AC, 1270259, 4801835AB, 4801835AC, 56029574AA, P04801835AB, P04801835AC, P56029574AA; Denso 104210-1840, 104210-6080, 104210-6090, 104210-6590, 104210-6591, 104210-6592, TN104210-1840, TN104210-6592; Jeep-Eagle 1270259 Vehicle Application Chrysler - Europe Car GRAND VOYAGER V (RT) Eng.ENS 2.8 CRD 132kw ENS 2012 Delta 2.0 D 1956cc 2011-2017 Dodge - Europe Car Nitro ENR 2777cc, 2.8 CRD 2007-2010 Nitro ENS 2777cc, 2.8 CRD 2007-2010 NITRO Eng.ENR, ENS 2.8 CRD 130kw "ENR, ENS" 2007-2012 NITRO Eng.ENR, ENS 2.8 CRD 4WD 130kw "ENR, ENS" 2007-2012 Jeep Truck Grand Cherokee V6 3.0L 2987cc 182cid 2014-2018 Jeep - Europe Truck Cherokee III ENS 2776cc, 2.8 CRD 2008-2016 Wrangler II ENS 2776cc, 2.8 CRD 2006-2007 Wrangler III ENS 2776cc, 2.8 CRD 2007-2016 Grand Cherokee I 3.0L CRD 2987cc 2011-2015 Fiat - Europe Car Freemont 2.0 JTD 1956cc 2011-2017 Features & Benefits Precision aftermarket replacement part Regulates alternator output voltage Helps maintain proper battery charging Supports stable charging system performance Manufactured to match original specifications Designed for dependable long-term operation Ideal for alternator rebuilding and repair Cross-referenced to OEM and aftermarket part numbers     What Does a Voltage Regulator Do? The voltage regulator controls the alternator's output by regulating current supplied to the rotor field winding. As electrical demand changes, the regulator continuously adjusts field current to maintain the proper charging voltage for the battery and the vehicle's electrical system. A properly functioning voltage regulator helps prevent battery overcharging and undercharging while protecting sensitive electrical components from excessive voltage. Because charging system performance depends on the interaction between the regulator, rotor, stator, rectifier, and battery, replacing a faulty regulator is an important step in restoring alternator performance.     Common Signs Replacement Is Needed Replace the voltage regulator if you notice: Battery overcharging Battery not charging Low charging voltage High charging voltage Battery warning light illuminated Intermittent charging problems Headlights that brighten or dim with engine speed Charging system failure during testing Voltage regulator failure discovered during alternator rebuilding     Installation Recommendations Installation should be performed by a qualified technician or experienced alternator rebuilder. Before installing the new regulator, inspect the brushes, brush holder, slip rings, rotor, stator, rectifier, wiring, and electrical connections for signs of wear or damage. Always verify connector configuration and mounting style before installation. After assembly, bench-test the alternator to confirm proper charging voltage and overall charging system performance.     While You're Rebuilding Inspect other common wear components to help maximize charging system reliability: Bearings Brushes Brush Holder Slip Rings Rectifier Diodes Rotor Clutch Pulley Insulators     Why Buy From RC Auto Electric? RC Auto Electric specializes in alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of OEM and aftermarket electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes.     Disclaimer Compatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original part, connector configuration, mounting style, voltage specifications, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering.