Sorenson TS-55, a vintage coolant temperature sender
type: Unknown Type
Vendor: CorvairFarmer
Description:
🧩 Part Overview
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Part Number: Sorenson TS-55
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Type: Coolant Temperature Gauge Switch / Sender
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Thread Size: 3/8"-18 NPT
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Connector: Single spade terminal
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Function: Activates dash warning light or gauge based on coolant temperature
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Country of Origin: Made in USA
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Status: NOS units occasionally found in original packaging
🚗 Confirmed Fitment
Used across 1974–1980 GM vehicles, including:
| Make | Models & Engines | Years |
|---|---|---|
| Chevrolet | Impala, Caprice, C/K Trucks, El Camino, Malibu, G-series Vans | 1974–1980 |
| Pontiac | Bonneville, Catalina, Firebird | 1974–1980 |
| Cadillac | DeVille, Fleetwood, Eldorado | 1974–1980 |
| GMC | Sierra, Suburban, Vans | 1974–1980 |
Also compatible with select Buick and Oldsmobile platforms using V8 engines and warning light systems.
🔁 Cross Reference Numbers
| Brand | Equivalent Part Number |
|---|---|
| ACDelco | D1897A |
| Standard | WT344 |
| Wells | D1897A |
| GP Sorensen | TS-55 |
| Niehoff | TS-55 |
| Others | 15-2517 |
These interchange numbers confirm compatibility across multiple aftermarket catalogs.