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Volvo VNL Negative Battery Bar – Black 4-Battery Bus Bar – Replaces 21107829
Volvo VNL Negative Battery Bar – Black 4-Battery Bus Bar – Replaces 21107829
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Volvo VNL Negative Battery Bar – Black 4-Battery Bus Bar – Replaces 21107829

Out of stock
SKU: 178.2024BK
$46.10

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Ensure a clean and reliable electrical ground for your rig with the Volvo VNL Negative Battery Bar by Automann. Specifically designed for Volvo VNL, VHD, and VNM series trucks, this heavy-duty bus bar is the essential component for connecting 4-battery power banks. Over time, factory battery bars can succumb to high-resistance corrosion or physical cracking; replacing them with this negative bus bar ensures maximum cranking power and protects your sensitive ECM and electrical modules from dangerous voltage drops.

Engineered for Reliability: The Volvo VNL Negative Battery Bar Advantage

The Volvo VNL Negative Battery Bar (Automann Part # 178.2024BK) is built to Fleet Standard specifications for long-term durability in harsh environments. It features a protective black finish to clearly identify the negative (ground) side of the circuit, significantly reducing the risk of cross-polarity errors during battery swaps. Note: This bar is precision-stamped to align perfectly with terminal spacing on Volvo's standard 4-battery tray, providing the high-conductivity path required for heavy-duty starters.

As we continue to build the largest inventory of commercial truck parts in Illinois, we prioritize electrical components that prevent road-side breakdowns. This component is a direct professional-grade replacement for Volvo 21107829. Compatible with models spanning 1996 through 2019, including the VNL 630, 670, and 780, this bus bar provides the "OE fit and finish" required to keep your Volvo’s electrical system running at peak efficiency.

Comprehensive Compatibility & Matching Positive Parts

To ensure a safe and complete battery service, verify your configuration and matching positive side requirements below:

  • Negative Bar (Black) Replaces: 21107829, 178.2024BK

  • Positive Bar (Red) Match: 21107828, 178.2024RD

  • Configuration: Designed for 4-Battery Group-31 Setups

  • Fits Models: Volvo VNL (Gen 1 & 2), VNM, VHD, and VNX (1996–2019)

  • Benefits: High Amperage Capacity, Corrosion-Resistant Finish, Exact Terminal Alignment