Aftermarket Delco Voltage Regulator D202XHD

Specifications

• MFR:DELCO
• FEATURE 1:100% New Transpo Heavy Duty ASVR Design
• FEATURE 2:OE compliant functions & performance: current limiting, thermal shutdown, load dump protection, shorted field & lamp circuit protection
• FEATURE 3:Welded construction - no solder joints for hi-temperature reliability & increased field life
• NOTE 1:Without temperature compensation.
• NOTE 2:Designed for DR4402, DR4403 series rectifiers w/ screw down collar.
• SPECS FOR:Delco AD230, AD244 Series IR/IF Alternators
• SPECS:12 Volt, B-Circuit, P-L-F-S Terminals, 14.2 Vset, 2.5 sec. LRC

Used On

• Chevrolet (2001-2006)
• GMC (2001-2006)

Replaces

Delco: 10454669, 10458202, 15163024, 15163025, 19051739, Original Reference Number 1739

Lester Numbers

• 8490-3, 8490-9, 8491-3, 8492-12, 8492-9, 8493-12, 8493-9, 8494-3, 8495-3, 8496-9

Unit Numbers

Delco: 10464459, 10464460, 10464461, 10464466, 10464467, 10464478, 10464480, 10464483, 10464484, 10464487, 10464488, 10464489, 10464490, 10464490, 10480270, 10480271, 10480479, 10480480, 15056099, 15056100, 15087020, 15087021, 15087022, 15087023, 15087024, 15769252, 15769253, 15769254, 19244752
Original Reference Number: 15769252W, 15769253W

Vehicle Application

Chevrolet Truck
B7 V8 8.1L 496cid 2001–2002
B7 V8 8.1L 496cid General Motors L18 2001–2002
C4500 Kodiak V8 6.6L 6599cc 403cid General Motors LB7 2003–2009
C4500 Kodiak V8 6.6L 6599cc 403cid 2003–2005
C4500 Kodiak V8 8.1L 496cid 2003–2005
C4500 Kodiak V8 8.1L 496cid General Motors L18 2003–2009
C4500 Kodiak V8 6.6L 6599cc 403cid General Motors LLY 2004–2006
C4500 Kodiak V8 6.6L 6599cc 403cid Diesel 2006
C50 GM 8.1L(496) V8 Gas 2001–2002
C5500 Kodiak GM 8.1L(496) V8 Gas 2001–2002
C5500 Kodiak V8 8.1L 496cid 2001–2005
C5500 Kodiak V8 6.6L 6599cc 403cid General Motors LB7 2003–2004
C5500 Kodiak V8 6.6L 6599cc 403cid 2003–2005
C5500 Kodiak V8 8.1L 496cid General Motors L18 2003–2009
C5500 Kodiak V8 6.6L 6599cc 403cid General Motors LLY 2004–2006
C5500 Kodiak V8 6.6L 6599cc 403cid General Motors 2004
C5500 Kodiak V8 6.6L 6599cc 403cid Diesel 2006
C60 GM 8.1L(496) V8 Gas 2001–2002
C6500 Kodiak V8 8.1L 496cid General Motors L18 2001–2009
C6500 Kodiak V8 8.1L 496cid 2001–2005
C70 GM 8.1L(496) V8 Gas 2001–2002
C7500 Kodiak V8 8.1L 496cid General Motors L18 2001–2009
C7500 Kodiak V8 8.1L 496cid 2001–2005
C80 GM 8.1L(496) V8 Gas 2001–2002
C8500 V8 8.1L 496cid General Motors L18 2003–2009
Kodiak C8500 GM 8.1L(496) V8 Gas 2001–2005

GMC Truck
B7 V8 8.1L 496cid 2001–2002
B7 V8 8.1L 496cid General Motors L18 2001–2002
C4500 Topkick V8 6.6L 6599cc 403cid General Motors 2003–2004
C4500 Topkick V8 6.6L 6599cc 403cid General Motors LB7 2003–2004
C4500 Topkick V8 6.6L 6599cc 403cid 2003–2005
C4500 Topkick V8 8.1L 496cid 2003–2005
C4500 Topkick V8 8.1L 496cid General Motors L18 2003–2009
C4500 Topkick V8 6.6L 6599cc 403cid General Motors LLY 2004–2005
C4500 Topkick V8 6.6L 6599cc 403cid General Motors LMM 2005
C4500 Topkick V8 6.6L 6599cc 403cid Diesel 2006
C4500 Topkick V8 6.6L 6599cc 403cid General Motors LMM 2007–2009
C5000 GM 8.1L(496) V8 Gas 2001–2002
C5500 Topkick GM 8.1L(496) V8 Gas 2001
C5500 Topkick 8 Cyl. 8.1L 496cid 2002
C5500 Topkick V8 6.6L 6599cc 403cid General Motors 2003–2004
C5500 Topkick V8 6.6L 6599cc 403cid General Motors LB7 2003–2004
C5500 Topkick V8 6.6L 6599cc 403cid 2003–2005
C5500 Topkick V8 8.1L 496cid 2003–2005
C5500 Topkick V8 8.1L 496cid General Motors L18 2003–2009
C5500 Topkick V8 6.6L 6599cc 403cid General Motors LLY 2004–2005
C5500 Topkick V8 6.6L 6599cc 403cid Diesel 2006
C5500 Topkick V8 6.6L 6599cc 403cid General Motors LMM 2007–2009
C6000 GM 8.1L(496) V8 Gas 2001–2002
C6500 Topkick V8 8.1L 496cid 2001–2005
C6500 Topkick V8 8.1L 496cid General Motors L18 2001–2009
C7000 GM 8.1L(496) V8 Gas 2001–2002
C7500 Topkick V8 8.1L 496cid 2001–2005
C7500 Topkick V8 8.1L 496cid General Motors L18 2001–2009
C80 GM 8.1L(496) V8 Gas 2001–2002
C8500 Topkick V8 8.1L 496cid General Motors L18 2003–2009
Topkick C8500 GM 8.1L(496) V8 Gas 2001–2005

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.