ACDelco GM PT2437 Pigtail Connector, Black Multi Purpose, Replacement with 12 Month Warranty & Made in USA

Restore a damaged automotive electrical connection without unnecessarily replacing the complete wiring harness with the Wholesale Sensors Replacement for ACDelco GM PT2437 Multi-Purpose Pigtail. Made in the USA and engineered as a perfect OEM-style replacement, this 2-wire connector pigtail is designed to meet or exceed original fit and functional specifications for compatible General Motors applications.

The PT2437 is a multi-purpose electrical pigtail connector designed to splice into the existing vehicle wiring harness. When an original connector becomes cracked, corroded, melted, loose, or otherwise damaged, replacing the pigtail provides a practical way to restore the electrical connection while retaining the rest of a serviceable vehicle harness.

GM officially identifies 19178093 as ACDelco PT2437 and describes it as a black multi-purpose pigtail. GM specifies two terminals and states that its OE pigtail connectors are designed to be spliced into compatible vehicle harnesses. GMC Parts

Replacement for ACDelco PT2437 and GM 19178093

The primary replacement numbers for this pigtail are:

ACDelco PT2437
GM 19178093

GM parts documentation shows that 19178093 supersedes 15306137 and 15306187. Flow Automotive Center

Additional documented aftermarket interchange numbers include:

Dorman 645-782
Airtex 1P1613
BWD PT986
Standard Motor Products S-1487 / S1487
Wells 981

These cross-references are documented together with ACDelco PT2437 and GM 19178093 in aftermarket parts catalogs. FinditParts

The Wholesale Sensors component is an aftermarket replacement and is not represented as a genuine ACDelco or General Motors component.

2-Wire, 2-Terminal Pigtail Design

PT2437 uses a black oval connector housing with two wires and two terminals. Published specifications identify female pin terminals, 19-gauge wires, and an approximately 17-inch or 431.8 mm wiring harness length. AutoZone

The replacement pigtail allows the damaged connector and a short section of compromised wiring to be removed and replaced without changing the complete wiring harness.

Protective wire insulation helps shield the conductors in automotive environments, while secure terminals provide the electrical contact needed for compatible sensor and electrical circuits.

Each Wholesale Sensors replacement is rigorously tested for electrical continuity, terminal retention, connector integrity, wiring quality, and dependable electrical performance.

Compatible GM Vehicles

PT2437 has broad General Motors application coverage. Documented fitments include popular vehicles such as:

Chevrolet Camaro 1993-2002
Chevrolet Impala 2000-2011
Chevrolet Monte Carlo 2000-2007
Chevrolet Venture 1999-2005
Chevrolet Uplander 2005-2008
Chevrolet HHR 2011
Chevrolet Malibu 2006-2007
Buick Park Avenue 1999-2005
Buick Century 1999-2005
Buick LeSabre 1999-2005
Buick Regal 1999-2004
Buick LaCrosse 2005-2009
Buick Rendezvous 2002-2007
Buick Lucerne 2006-2011
Pontiac Firebird 1993-2002
Pontiac Grand Prix 1999-2008
Pontiac Bonneville 1999-2005
Pontiac GTO 2004-2006
Pontiac G6 2006-2009
Pontiac Aztek 2001-2005
Pontiac Montana 1999-2006
Cadillac CTS 2004-2007
Oldsmobile Intrigue 1999-2002
Oldsmobile Silhouette 1999-2004
Oldsmobile Aurora 2001-2002
Saturn Relay 2005-2007

These applications are documented for the interchangeable Dorman 645-782 connector, whose cross-reference table specifically identifies ACDelco PT2437 and GM 19178093. FinditParts

Because PT2437 is a multi-purpose pigtail, listing a vehicle does not mean the connector performs the same function on every model. Always verify the OE number, connector configuration, electrical circuit, year, model, and engine before ordering.

Multiple Automotive Electrical Applications

One of the important characteristics of PT2437 is that it is not limited to a single sensor type.

Aftermarket catalogs document the connector for vehicle speed sensor applications, while other catalogs identify PT2437 for additional multi-purpose sensor circuits. For example, AutoZone catalogs the same PT2437 connector under vehicle speed sensor, transfer case fluid temperature sensor, and brake fluid level switch connector categories. AutoZone

This is why customers should match the pigtail according to PT2437 / 19178093 and the original connector configuration, rather than purchasing solely by sensor description.

Helps Repair Common Connector Problems

Automotive wiring connectors operate in demanding conditions and may be exposed to vibration, temperature changes, moisture, road contaminants, repeated service, and age.

Over time, the original connector can develop:

Broken or brittle wiring
Loose terminal connections
Corroded electrical terminals
Cracked connector housing
Damaged locking tabs
Intermittent electrical contact
Melted or heat-damaged wiring
Open or unstable sensor circuits

Depending on the circuit, a damaged connector may result in an intermittent sensor signal, incorrect reading, warning light, loss of sensor data, or a diagnostic trouble code.

Replacing a confirmed damaged PT2437 pigtail can restore a secure electrical connection without requiring replacement of an otherwise serviceable wiring harness.

OBD-II Diagnostic Code Information

There is no single OBD-II diagnostic code that PT2437 universally fixes.

Because PT2437 is a multi-purpose pigtail used on different electrical circuits, the diagnostic codes associated with a damaged connector depend on the vehicle and the component connected to it.

For example, a PT2437 used on a vehicle speed sensor circuit could produce symptoms or diagnostic information different from the same connector used with another sensor or switch.

A diagnostic trouble code should therefore be treated as a starting point for diagnosis, not proof that the pigtail itself has failed.

Inspect the connector for corrosion, loose terminals, damaged insulation, broken conductors, poor terminal tension, or other visible problems. Electrical testing may also be required to verify continuity, power, ground, signal, or resistance depending on the circuit.

Straightforward Splice-In Repair

GM describes its pigtail connectors as components designed to be spliced into the vehicle harness. GM Parts Store

Before installation, disconnect the vehicle battery according to the manufacturer’s service procedure. Locate the original PT2437 connector and compare the connector housing and terminal configuration with the replacement before cutting the vehicle wiring.

Document each circuit position before removing the original connector.

Do not rely on wire color alone when connecting a replacement pigtail. Replacement lead colors may differ from the original vehicle wiring. Match each lead according to its terminal position and electrical function using the correct wiring diagram.

Remove damaged wiring as necessary, create secure automotive-grade splices, and protect the connections against moisture, abrasion, vibration, and heat. Route the repaired wiring away from exhaust components, moving belts, pulleys, fans, and sharp edges.

After installation, reconnect the battery and verify proper operation of the repaired circuit.

Made in USA with 12-Month Warranty

The Wholesale Sensors Replacement for ACDelco GM PT2437 Multi-Purpose Pigtail is Made in the USA and designed for dependable automotive electrical repair.

Wholesale Sensors focuses on reliable replacement sensors, connectors, pigtails, wiring components, and related products for automotive and equipment applications. Every PT2437 replacement is backed by rigorous quality standards and inspection.

The combination of a 2-wire design, 2-terminal connector, direct splice-in repair configuration, Made in USA construction, and broad GM application coverage makes this pigtail a practical choice for repairing a confirmed damaged PT2437 connection.

Every replacement includes a strong 12-month warranty and responsive USA-based product support, providing added confidence for professional automotive technicians, independent repair shops, fleet maintenance departments, restoration specialists, performance builders, and DIY vehicle owners looking for a dependable replacement for ACDelco PT2437 / GM 19178093.