Description:

GM / AC Part Number 6499657 — Cluster Component — New Old Stock Original AC‑branded GM service part used in mid‑century GM instrument‑cluster electrical systems. This is a clean, unused NOS unit in its original AC “Quality Parts” packaging — ideal for restorations, dash‑cluster rebuilds, and period‑correct electrical service.

Specifications

• Manufacturer: AC (AC‑Delco Division of General Motors)

• GM Part Number: 6499657

• Component Type: “Cluster” electrical component (GM used this label for cluster resistors, cluster filters, and cluster feed modules)

• Era: 1960s–1970s GM electrical catalog

• Condition: NOS — original box, clean terminals, no corrosion

Typical Uses

This part number falls into the GM “cluster electrical” family, typically used for:

• Instrument cluster voltage stabilization

• Gauge feed resistors

• Printed‑circuit cluster components

• Dash‑panel electrical service parts

🟦 CROSS‑REFERENCE CHART — GM 6499657

Because GM used “cluster” as a category rather than a single function, cross‑references are based on GM electrical service families, not identical part numbers.

If you want, I can decode the exact function (resistor, stabilizer, filter, etc.) once you provide a photo of the component itself outside the box.

🟧 FITMENT MATRIX — GM 6499657

This matrix reflects the most common GM platforms that used AC‑Delco “cluster” electrical components in the 1960s–1970s.

1. GM Passenger Cars (1964–1974)

2. GM Trucks (1964–1974)

3. Industrial & Fleet Equipment

These platforms used GM‑powered engines with AC/Delco dash clusters.

MADE IN THE USA