NOS Casco OPV-24 Oil Pressure Switch – USA Made

Description:
Correct for GM, Chrysler, and AMC vehicles using warning light-style oil pressure systems. 1/8″ NPT thread with single spade terminal – activates dash light at low pressure. Cross-referenced with GM 1994162, Chrysler 2951234, and Standard PS-64. NOS condition – includes original packaging – ideal for restorers seeking period-correct electrical components.
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🛠️ Part Overview
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Manufacturer: Casco Products Corp.
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Part Number: OPV-24
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Type: Oil Pressure Sender Switch
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Function: Activates dash warning light when oil pressure drops below threshold
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Thread Spec: 1/8″ NPT male
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Terminal: Single spade connector
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Country of Origin: USA
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Vintage Status: NOS examples available
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Packaging: Typically boxed or bagged with Casco branding
🚗 Fitment & Specific Applications
The OPV-24 switch is correct for GM and Chrysler vehicles from the 1960s through early 1980s, especially those using idiot light-style oil pressure systems.
Make | Models (Typical) | Years |
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Chevrolet | Impala, Nova, C/K Trucks | 1965–1985 |
Pontiac | Bonneville, Firebird | 1970–1981 |
Dodge | Dart, Charger, Ram | 1968–1984 |
Plymouth | Fury, Duster | 1970–1980 |
AMC | Gremlin, Hornet | 1971–1977 |
This part is typically mounted near the oil filter boss or timing cover and connects to the dash warning light circuit.
🔁 Cross-Reference Numbers
Brand | Part Number |
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GM OEM | 1994162 |
Chrysler OEM | 2951234 |
Niehoff | FF-51 |
Standard | PS-64 |
Wells | SW-101 |
These interchange numbers reflect compatibility across OE and aftermarket oil pressure switches with similar specs