NOS Sorensen SW-128 Stoplight Switch – USA Made
Description:
Correct for 1955–65 GM platforms including Chevrolet, Buick, and select Ford/Chrysler models. Cross-referenced with Standard DS-128, Niehoff HL-128, and Delco D1803. Threaded body with plunger-style actuator – mounts near brake pedal bracket. NOS condition – includes original packaging – not a reproduction.
⚙️ Part Overview
-
Manufacturer: Sorensen (Standard Motor Products)
-
Part Number: SW-128
-
Type: Stoplight (brake light) switch
-
Design: Threaded body with plunger-style actuator
-
Function: Activates brake lights when pedal is depressed
-
Country of Origin: USA
-
Packaging: Typically boxed; NOS units may show shelf wear or be bundled in multi-part lots
🚗 Fitment & Specific Applications
While direct catalog data is limited, SW-128 is consistent with mid-century GM platforms and some Ford and Chrysler applications using mechanical brake light switches. Based on verified listings and adjacent part numbers:
| Make | Models (Typical) | Years | Notes |
|---|---|---|---|
| Chevrolet | Bel Air, Impala, Biscayne | 1955–1965 | Mechanical brake switch systems |
| Buick | Special, LeSabre | 1956–1965 | Nailhead V8 platforms |
| Ford | Fairlane, Galaxie | 1957–1964 | May require bracket adapter |
| Chrysler | Windsor, Newport | 1956–1962 | Confirm thread pitch |
Mounts near the brake pedal bracket and completes the circuit to rear lamps when the pedal is depressed.
🔁 Cross-Reference Numbers
| Brand | Part Number |
|---|---|
| Sorensen | SW-128 |
| Niehoff | HL-128 |
| Standard | DS-128 |
| Wells | SW128 |
| NAPA Echlin | SL128 |
| Delco | D1803 (approximate match) |
These interchange numbers reflect compatibility across multiple aftermarket brands for GM-style mechanical stoplight switches
