• GM Genuine Parts 42721828 Battery Negative Cabl
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GM Genuine Parts 42721828 Battery Negative Cabl

GM Genuine Parts 42721828 Battery Negative Cabl

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✔ GM Genuine Parts 42721828 Battery Negative Cable — Genuine OEM Part
✔ Fitment: Select Buick Encore, Chevrolet Trax, and Opel/Vauxhall Mokka models (2013–2022)
✔ Direct replacement for factory negative battery cable — no modifications required
✔ Manufactured to GM’s original specifications — Designed, engineered, and tested to rigorous standards
✔ Genuine OEM quality — ensures reliable electrical connection and proper grounding
✔ Other Names: Negative Battery Cable, Battery Ground Cable

 

GM Genuine Parts 42721828 Battery Negative Cable — for Buick Encore, Chevrolet Trax, and Opel Mokka

Difficulty starting the engine, dim headlights, electrical accessories that work intermittently, or a battery that keeps losing its charge — these are common signs that your battery negative cable is failing. The negative battery cable provides the ground connection between the battery and the vehicle's chassis, completing the electrical circuit. A corroded, loose, or damaged cable can cause poor grounding, leading to starting problems, electrical malfunctions, and potential damage to sensitive electronic components. Replacing it with this genuine GM part restores a reliable ground connection and ensures proper electrical system operation.

This is a factory-original GM battery negative cable (OE part number 42721828). It is a direct replacement component designed, engineered, and tested to rigorous standards and backed by General Motors. This is the same part sold at GM dealerships.

When to Replace

• Difficulty starting the engine
• Dim or flickering headlights
• Electrical accessories working intermittently
• Battery losing charge
• Visible corrosion on the cable or terminals
• Loose or damaged battery terminal clamp

Product Details & Highlights

• ✔ Genuine GM OEM — not an aftermarket or Chinese replica
• ✔ Direct replacement — fits factory grounding points
• ✔ Reliable electrical connection — ensures proper grounding
• ✔ Durable construction — withstands engine bay conditions
• ✔ Manufactured to GM’s strict quality standards
• ✔ Backed by GM’s manufacturer warranty (valid through any authorized dealer)

Package Contents

• 1 × GM Genuine Parts 42721828 battery negative cable

FAQ

FAQ

Is this a genuine GM part or a copy?
This is 100% genuine GM OEM — in original factory packaging with the GM part number printed on the label. It is not an aftermarket brand or a replica.

Does this fit my 2016 Buick Encore?
Yes — the 2016 Encore is listed as compatible. We recommend verifying with your VIN.

Does this fit my 2018 Chevrolet Trax?
Yes — the 2018 Trax is listed as compatible. Please verify with your VIN.

Is this the positive or negative cable?
This is the negative (ground) battery cable. The positive cable is a separate part number.

What are the symptoms of a bad negative battery cable?
Common symptoms include difficulty starting, dim headlights, intermittent electrical issues, and a battery that loses charge.

Can I install this cable myself?
Yes — it is a direct replacement. Disconnect the negative terminal first, then route and connect the new cable. Always consult your vehicle's service manual for the correct procedure and torque specifications.

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