ACDelco 12479302 Cross Reference to SKF: What You Need to Know

When you're sourcing a replacement part and the original number leads you to a cross-reference search, it helps to understand what you're actually comparing — not just grab the first match that comes up. The ACDelco part number 12479302 is a bearing component, and SKF is one of the most widely recognized bearing manufacturers in the world. Here's how cross-referencing works, what it means for this specific part, and what factors determine whether a cross-referenced part is actually right for your application.

What Is ACDelco 12479302?

ACDelco 12479302 is a wheel hub bearing assembly — the type of component found on the front or rear axle of many GM-platform vehicles. Hub bearing assemblies combine the wheel bearing, hub, and sometimes the ABS tone ring into a single sealed unit. When this assembly wears out, symptoms typically include humming or grinding noises that change with vehicle speed, looseness in the wheel, or ABS warning lights triggered by a damaged tone ring.

ACDelco is GM's OEM (original equipment manufacturer) parts brand. When a part carries an ACDelco number, it was specified for a particular GM vehicle application — often a Chevrolet, GMC, Buick, or Cadillac — and built to meet the original factory specification.

How Cross-Referencing Works

Parts cross-referencing is the process of identifying equivalent or interchangeable parts across different manufacturers. A cross-reference doesn't mean the parts are identical in origin — it means the aftermarket or competing manufacturer has verified that their part meets the same dimensional, load, and performance specs as the original.

For bearing components like hub assemblies, a valid cross-reference should confirm:

• Bolt pattern and flange diameter match your vehicle's hub
• Bearing load rating meets the manufacturer's specification
• ABS sensor compatibility, if the unit includes an integrated tone ring
• Stud count and thread pitch for the wheel mounting surface
• Overall assembled dimensions, so the unit seats and torques correctly

A number match in a cross-reference catalog is a starting point, not a guarantee.

ACDelco 12479302 to SKF: The Cross-Reference

SKF is a Swedish bearing manufacturer with one of the most respected reputations in the industry. Their wheel end products — sold under the SKF brand and sometimes also under the BCA or National umbrella — are widely used in both OEM and aftermarket applications.

The SKF cross-reference to ACDelco 12479302 is commonly listed as BR930643 (an SKF hub bearing assembly). However, cross-reference databases vary by source, and the exact SKF part number that applies depends on the specific vehicle application tied to the ACDelco number.

⚠️ Cross-reference numbers listed in catalogs should always be verified against your vehicle's year, make, model, and drivetrain before purchase. A number that cross-references correctly for one trim level may not fit another — even within the same model year.

What Variables Affect Whether the Cross-Reference Fits

Even with a confirmed cross-reference match, several factors shape whether a specific part is appropriate for a specific vehicle:

Drivetrain configuration — A front-wheel-drive application uses a different hub assembly than an all-wheel-drive or four-wheel-drive application, even on the same vehicle platform. Some GM trucks and SUVs have multiple hub options depending on whether they're 2WD or 4WD.

ABS integration — Vehicles with ABS require a hub assembly that includes the correct tone ring tooth count. Using a unit with the wrong tooth count can trigger false ABS activation or disable the system entirely.

Model year variation — GM sometimes revised hub specs mid-production or between model years. A cross-reference valid for a 2007 application may not apply to a 2009 version of the same vehicle.

Installation method — Some hub assemblies are bolt-on units; others require a press fit. Confirming the installation method matters for both fit and DIY feasibility.

Warranty and quality tier — SKF offers different product lines at different quality and price levels. An SKF bearing marketed as a premium or OE-equivalent unit may differ in specification from a budget-tier cross-reference that carries the same part number across catalogs.

OEM vs. Aftermarket: What the Choice Actually Means 🔩

Choosing between an ACDelco OEM part and an SKF aftermarket cross involves tradeoffs that aren't simply about price:

• ACDelco OEM parts are built to the exact specification GM used during original production. They tend to carry the highest confidence for fit, but are typically priced higher than aftermarket alternatives.
• SKF aftermarket parts are widely respected in the industry and used by professional shops. SKF has OEM supply relationships with many vehicle manufacturers, which speaks to their engineering standards.

Neither choice is universally better. A mechanic's preference, the vehicle's age, intended longevity, and regional parts availability all play into which makes more sense in a given situation.

The Part Number Is the Beginning, Not the End

Cross-referencing ACDelco 12479302 to an SKF equivalent is a reasonable approach to sourcing a hub bearing assembly at a competitive price point. SKF's engineering reputation is strong, and the cross-reference is well-documented in major parts catalogs.

But the specific vehicle it's going into — the year, make, model, drivetrain, ABS configuration, and trim level — is what ultimately determines whether the cross-referenced part number is correct for that application. Those details live with you and your vehicle, not in a general cross-reference chart.