OEM CertifiedFactory Sealed OEM
Key Diagram & Connector Pinout Callouts
B+ Output StudM10 Copper Post
High-current output cable to battery junction block
Sense Terminal4-Pin Plug
RVC duty-cycle control line from ECM
Primary OEM Part #13588933
Inventory Available 6 Ready to Ship
GM Chevrolet / GMC 220-Amp High-Output Alternator Assembly
Manufacturer: General Motors OEM / ACDelco • SKU: ALT-GM-13588933
Standard Dealership Market Price:$540.00
Direct Buy Now Price:$405.00
Save 25% ($135)
Quantity:
1
(Max 6 in batch) Same-day Dispatch
36-Month ACDelco Gold Warranty
OEM Interchanges & Cross Reference
Mechanics can cross-reference with these stamped casing and manufacturer numbers:
13588933 (Primary)135889331350480284563-120ACDelco 335-1451210-6025
Product Overview & Technical Description
Factory brand-new GM ACDelco high-output 220-amp alternator with Regulated Voltage Control (RVC/AD24VR) smart charging. Hairpin segment conductor stator design maximizes output at low RPM. Ideal for police package, plow, and heavy electrical accessory loads.
Key Engineering Features:
- 220-amp output supports upfitter electrical loads and dual battery systems
- AD24VR smart regulator reduces fuel consumption via RVC load management
- Sealed bearing housing rated for 150,000-mile service life
- Genuine GM parts box with decoupler pulley pre-installed
Guaranteed Vehicle Fitment (2014–2026)
Supported MakesChevrolet, GMC, Cadillac
Model Years Covered2014 – 2019
Eligible ModelsSilverado 1500 • Sierra 1500 • Tahoe • Suburban • Yukon • Escalade
Engine Platform5.3L L83 / 6.2L L86 EcoTec3 V8
Hardware & Electrical Specs
Operating Voltage:12V - 14.8V DC RVC Managed
Pin Terminal Count:4 Pins
Terminal Plating:Heavy silver B+ stud with 4-pin plug
Protocols / Bus:GM RVC / LIN Smart Charge
Amperage220 Amperes @ 14.0V
Pulley6-Groove Overrunning Clutch Pulley
RotationClockwise (CW)
Boxed Weight17.2 lbs
Box Dimensions9.5 x 8.5 x 7.8 in
VIN Flashing / ProgrammingNot Required (Direct Plug-in)