This NOS D-619/1119004 Delco-Remy "low cut-in" voltage regulator is the vital part of the Special "City Service" Generator Equipment package (with 40 amp generator 1106981) originally spec'd for low-speed/high-draw 1955 1956 1957 Police/Taxi/Commercial applications (e.g., taxi, city police, delivery/service). Similarly suitable for other years/makes/models. Inquire about interchange/compatibility.

Ideal for cruising your "correct" 55/56/57 GMC light-duty truck, with audio and lighting upgrades.

Vintage NOS Made in USA carefully stored without consumer packaging. Not rebuilt. Brand new "correct" appearance.

If you are fighting voltage gremlins in your original-style electrical system, it may be that your "correct" base-spec voltage regulator is not suitable for cruising with modern accessory loads. City Service package vehicles were designed to deliver healthy, constant electrical current (for two-way radio, auxiliary lights, etc.) at low in-town speeds. They are NOT all the same.

Also for contemporary Chevy trucks and cars.