D7018 12V External Voltage Regulator with Adjustable Output | Fits Delco & Chrysler A-Circuit Alternators | Self-Exciting Stator-Activated Design | Universal 12V Regulator Replacement

The STS Parts D7018 12-Volt External Voltage Regulator is a universal, adjustable A-circuit regulator built for Delco, Chrysler, and other compatible alternators using external regulation. Featuring a self-exciting, stator-activated design, it provides reliable charging from idle through high RPM operation. The adjustable output allows precise voltage tuning (factory set ≈14.2V, adjustable up to ~15V), ensuring optimal performance for custom, classic, and industrial applications. Its through-bolt mounting design fits many Chrysler alternators, while the compact, solid-state build ensures long-term durability and vibration resistance. Technical Specifications: Part Number: D7018 System Voltage: 12 Volt DC Circuit Type: A-Circuit (ER/IF) Set Point: ~14.2V Adjustable Excitation: Self-Exciting / Stator-Activated Mounting: Through-bolt (Chrysler-style) Condition: 100% New / Solid-State Polarity: Negative Ground Warranty: 1 Year Terminal Identification: Red (B+): Battery Positive Black (B−): Ground Green (FLD): Field Terminal Blue (STA): Stator Signal Compatibility Notes: ✔ Universal A-Circuit systems using external regulation ✔ Common on Delco-style alternators and Chrysler units with through-bolt mounting ✔ For 12V negative-ground systems only ✔ Verify alternator circuit type before installation Cross References: WAI D7018 ACE Zorkos D7018 EGI 80CH-105 TSA AVCH-310 Chrysler: 3438807, 3656451, 3755405, 3874697, 4176002, 5206574, 5213053, and more Volvo: 3579222, 3579224 Lester Numbers: 7024, 7505, 7509, 7537, 7546, 7549, 7548, 7516 Package Includes 1 × 12V External Voltage Regulator – D7018 (Aftermarket) Installation Guide

• ⚙️ Adjustable External Voltage Regulator (12V) – Universal A-Circuit design with a user-adjustable set point (~14.2V factory) for fine-tuned charging control.
• 🔋 Self-Exciting, Stator-Activated Design – Automatically initiates charging at low RPM, ideal for vehicles with external Delco or Chrysler-style alternators.
• 🔧 Through-Bolt Mount on Chrysler Alternators – Convenient installation for Chrysler units; works on other compatible alternators requiring external regulation.
• 💪 100% New Solid-State Construction – Built from all-new components (not remanufactured). Designed for durability, heat resistance, and consistent voltage output.
• 🚗 Wide Compatibility Range – Works with multiple OEM references (Chrysler, Delco, Volvo) and replaces D7018, ACE Zorkos D7018, WAI D7018, EGI 80CH-105, TSA AVCH-310, and more.