Product Description
Repair or replace a damaged vehicle electrical connector with the ACDelco GM Original Equipment PT1798 Gray Multi-Purpose Pigtail Connector.
This pigtail is designed to be spliced into the vehicle wiring harness as a replacement for applicable original GM connectors. ACDelco GM Original Equipment pigtail connectors are manufactured to GM OE specifications for fit, form, and function and are intended to provide the quality, reliability, and durability expected from General Motors components.
The PT1798 features a gray oval connector, two wires, and two female blade-pin terminals, making it suitable for a wide range of GM electrical repair applications.
This part is supplied by Main Street Eshop as part of our OEM Replacement Parts Program, focused on dependable OE and premium replacement components for professional technicians, repair facilities, fleets, restorers, enthusiasts, and DIY customers.
Brand: ACDelco
Part Number / SKU: PT1798
Product Line: GM Original Equipment
Product Type: Multi-Purpose Pigtail Connector
Color: Gray
Wire Quantity: 2
Terminal Quantity: 2
Programming Required: No
About ACDelco
ACDelco is one of the most recognized automotive replacement parts brands associated with General Motors.
ACDelco GM Original Equipment components are designed around the requirements of applicable GM vehicles and are manufactured to GM OE specifications. For electrical repairs, proper connector shape, terminal configuration, wire count, and fit are important for maintaining reliable circuits and proper communication between vehicle systems.
The PT1798 is a GM-recommended replacement pigtail designed to replace applicable original factory connectors.
Key Features
- ACDelco GM Original Equipment pigtail connector
- GM-recommended replacement for applicable original factory connectors
- Designed to be spliced into the existing vehicle wiring harness
- Protective outer covering helps support long-term durability
- Color-coded wires help simplify installation
- Gray connector body
- Oval connector shape
- Two-wire configuration
- Two-terminal configuration
- Female blade-pin terminals
- Manufactured to GM OE specifications for fit, form, and function
- Meets or exceeds original equipment manufacturer specifications
- No programming required
Specifications
Brand: ACDelco
Part Number: PT1798
Product Type: Multi-Purpose Pigtail Connector
Color: Gray
Connector Gender: Male
Terminal Gender: Female
Terminal Type: Blade Pin
Connector Shape: Oval
Wire Quantity: 2
Terminal Quantity: 2
Length: 8.5 in
Wiring Harness Length: 9.5 in / 241.3 mm
Width: 4.1 in
Height: 0.6 in
Weight: 0.2 lb
Programming Required: No
Meets or Exceeds OE Manufacturer Specifications: Yes
What a Pigtail Connector Does
A pigtail connector is used to repair a damaged electrical connection without replacing an entire wiring harness.
The existing damaged connector and a short section of wiring can be removed, and the replacement pigtail can then be properly spliced into the vehicle harness.
This can be especially useful when the original connector has been damaged by:
- Damaged terminals
- Brittle wiring
- Previous repairs
- Connector contamination
- Harness damage near the component connection
Because PT1798 is a multi-purpose pigtail, its exact use depends on the vehicle and electrical component application.
Installation Notes
Electrical connector repairs should be performed carefully to maintain reliable conductivity and protection from moisture or contamination.
For installation:
- Verify PT1798 matches the original connector before cutting the vehicle harness.
- Compare connector shape, terminal count, wire count, and indexing.
- Disconnect the battery when required by the service procedure.
- Cut back damaged wiring until clean, undamaged conductor is reached.
- Splice wires using an appropriate automotive wiring repair method.
- Match circuits carefully rather than relying only on wire color.
- Insulate and seal connections appropriately.
- Route the repaired harness away from excessive heat, sharp edges, and moving components.
- Confirm the connector locks securely into the mating component.
Always follow the applicable vehicle manufacturer wiring diagram and service information.
Vehicle Fitment
The ACDelco PT1798 is used across a very broad range of GM vehicles and related platforms.
Buick Applications
Includes:
Allure, Century, Commercial Chassis, Enclave, LaCrosse, LeSabre, Lucerne, Park Avenue, Rainier, Reatta, Regal, Rendezvous, Riviera, Roadmaster, Skylark, Terraza, and Verano.
Cadillac Applications
Includes:
60 Special, ATS, Allante, CT4, CT5, CTS, Catera, Commercial Chassis, DTS, DeVille, Eldorado, Escalade, Escalade ESV, Escalade EXT, Fleetwood, SRX, STS, Seville, XLR, and XTS.
Chevrolet Applications
Includes a wide range of passenger cars, trucks, SUVs, vans, medium-duty vehicles, and commercial models, including:
Astro, Avalanche, Blazer, Camaro, Caprice, Captiva Sport, Cavalier, Cobalt, Colorado, Corvette, Equinox, Express, HHR, Impala, Malibu, Monte Carlo, S10, SSR, Silverado, Suburban, Tahoe, Trailblazer, Traverse, Uplander, Venture, Volt, and numerous C/K/R/V-Series truck and Kodiak applications.
GMC Applications
Includes:
Acadia, Canyon, Envoy, Jimmy, Safari, Savana, Sierra, Sonoma, Terrain, Typhoon, Yukon, Yukon XL, numerous C/K/R/V-Series trucks, and Topkick medium-duty applications.
Additional Applications
Also listed for select:
Because PT1798 is a multi-purpose electrical pigtail used in many different circuits, vehicle model alone is not enough to confirm compatibility.Please verify:
- ACDelco part number PT1798
- Connector shape
- Connector color
- Terminal count
- Terminal type
- Wire quantity
- Original connector configuration
- Vehicle year, make, model, and application
A vehicle appearing in the compatibility list does not necessarily mean this connector is used for every electrical component or every configuration within that vehicle.
For the most accurate fitment, compare PT1798 directly with the original connector or confirm the OE service part number before ordering.
Why Choose ACDelco GM Original Equipment?ACDelco GM Original Equipment components are designed for customers who want replacement parts engineered around GM factory requirements.
Benefits include:
- GM-recommended replacement applications
- OE-style connector geometry
- Correct terminal configuration for listed applications
- Designed to integrate with factory vehicle harnesses
- Manufactured to GM OE specifications
- Quality, reliability, and durability associated with GM OE components
For wiring repairs, correct connector fit and terminal configuration are especially important because a poor connection can cause intermittent electrical problems, diagnostic trouble codes, or component malfunction.
About Main Street EshopThis ACDelco GM Original Equipment PT1798 Gray Multi-Purpose Pigtail is supplied by Main Street Eshop through our OEM Replacement Parts Program.
Main Street Eshop specializes in automotive parts for repair shops, professional technicians, fleets, racers, enthusiasts, restorers, and DIY vehicle owners. Our product range includes OEM replacement parts, electrical components, maintenance items, performance products, shop supplies, RV parts, and specialty automotive hardware.
Our OEM Replacement Parts Program focuses on established manufacturers and OE-focused product lines such as ACDelco GM Original Equipment, helping customers source replacement components using accurate part numbers, specifications, and application data.
We work to make it easier to identify and purchase the correct part without relying on vague or generic fitment claims.
Package Contents1 x ACDelco GM Original Equipment PT1798 Gray Multi-Purpose Pigtail Connector
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