NOS Sorensen SW-137 Stoplight Switch – USA Made
Description:
Correct for 1955–65 GM platforms including Chevrolet and Buick models. Cross-referenced with Standard DS-137, Niehoff HL-137, and Delco D1802. Threaded body with plunger-style actuator – mounts near brake pedal bracket. NOS condition – includes original packaging – not a reproduction.
⚙️ Part Overview
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Manufacturer: Sorensen (Standard Motor Products)
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Part Number: SW-137
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Type: Stoplight (brake light) switch
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Design: Threaded body with plunger-style actuator
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Function: Activates brake lights when pedal is depressed
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Country of Origin: USA
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Packaging: Typically boxed; NOS units may show shelf wear or be bundled in multi-part lots
🚗 Fitment & Specific Applications
While direct catalog data is scarce, SW-137 appears correct for mid-century GM platforms, especially Chevrolet and Buick models 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 |
| GMC | C/K Series Trucks | 1957–1963 | Small-block V8 |
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-137 |
| Niehoff | HL-137 |
| Standard | DS-137 |
| Wells | SW137 |
| NAPA Echlin | SL137 |
| Delco | D1802 (approximate match) |
These interchange numbers reflect compatibility across multiple aftermarket brands for GM-style mechanical stoplight switches
