16-Pin External Transmission Harness Pigtail for GM 6L80E 6L90E
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- GM vehicles equipped with compatible 6L80E transmissions
- GM vehicles equipped with compatible 6L90E transmissions
- Chevrolet Silverado, Tahoe, Suburban, Camaro, and Express applications using the matching 16-pin connector
- GMC Sierra, Yukon, and Savana applications using the matching connector
- Cadillac applications using compatible 6L80E/6L90E wiring
Product Overview
Fluid wicking, road damage, corrosion, heat, or a broken locking tab at the transmission connector can create intermittent shift faults and communication codes. This repair pigtail lets a technician replace the damaged external connector and wire leads without condemning the entire vehicle harness. It does not replace the internal transmission harness, control module, valve body, or failed solenoids.
For a machine that needs to return to work, careful identification now prevents another round of disassembly later. Match transmission family, 16-pin connector keying, cavity layout, wire functions, and service information; wire colors alone are not a reliable map.
Key Features & Performance
- Sixteen-pin external transmission connector
- Preterminated wire leads for harness repair
- Replaces a damaged vehicle-side plug
- Supports weather-resistant splicing when installed correctly
Replaces Part Numbers
- 350-0168
Common Uses
- Connector lock is broken and plug will not stay seated
- Terminals are green, loose, or fluid-contaminated
- Harness is damaged near the transmission
- Intermittent shift codes change when the external connector is moved
Technical Specifications
- Product Type: External Transmission Pigtail
- Connector: 16 Pin
- Transmissions: GM 6L80E/6L90E
- Location: Vehicle-Side External Harness
- Replacement Type: Aftermarket Repair
Installation & Fitment
- Disconnect the battery and identify every circuit from wiring diagrams
- Stagger splices and preserve shielding/twisted pairs where specified
- Use sealed automotive splices and correct crimping tools
- Keep the harness away from exhaust and driveline movement
- Clear faults and verify scan data, gear selection, and leak-free connector seating
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Match transmission family, 16-pin connector keying, cavity layout, wire functions, and service information; wire colors alone are not a reliable map.
Frequently Asked Questions
Q: Is this the internal TEHCM harness? A: No. It is an external vehicle-harness repair pigtail.
Q: Can I match wires only by color? A: No. Use connector cavity numbers and the exact wiring diagram because colors can differ.
Q: Will it fix transmission slipping? A: Only electrical faults caused by the damaged connector; hydraulic or mechanical slipping needs separate diagnosis.
Part Summary
keywords: 6L80E external harness pigtail, 6L90E 16 pin connector repair, GM transmission wiring plug, 350-0168 pigtail fit, Silverado transmission connector corrosion
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.