Mopar Performance R5150583AC Powertrain Control Module PCM ECU ECM 3.8L V6 42RLE

The Mopar R5150583AC Powertrain Control Module (PCM) is a genuine OEM replacement engine control unit designed to restore factory-level performance and drivability. Also known as an ECM (Engine Control Module) or ECU (Engine Control Unit), the PCM serves as the central processing brain of the vehicle's powertrain — continuously monitoring and managing engine timing, fuel delivery, transmission shift behavior, and emissions controls in real time.

This module is engineered specifically for the 3.8L V6 SMPI engine paired with the 4-speed automatic 42RLE transmission, and is sold new with a core return requirement. It is a direct replacement for superseded part numbers 5150583AB and RL150583AC.

Key Features:

• Genuine OEM Mopar part — engineered and validated to factory specifications
• Designed for the 3.8L V6 Sequential Multi-Port Fuel Injection (SMPI) engine
• Compatible with the 4-speed automatic 42RLE (VLP) transmission
• Direct plug-and-play replacement — no custom programming or fabrication required
• Replaces superseded part numbers: 5150583AB and RL150583AC
• Sold as an individual unit — core return required
• Backed by Mopar's manufacturer warranty
• Meets California Proposition 65 labeling requirements

Choosing a genuine Mopar PCM ensures that all powertrain management functions — including fuel trim, ignition timing, transmission control, and OBD-II diagnostics — operate exactly as the factory intended. This is a critical component for restoring proper vehicle operation after PCM failure or corruption.