Product Overview

The wheel hub bearing assembly, OEM number A2303300325, is the front axle hub fitted to a wide range of Mercedes-Benz models without 4MATIC, model years 1994-2012, covering the C-Class (C230, C240, C280, C320, C350), CLK-Class (CLK320, CLK350, CLK500), and SLK-Class (SLK280, SLK300, SLK350), among others. Since this single part number spans multiple Mercedes model lines and nearly two decades of production, it's a genuinely high-turnover part for anyone stocking Mercedes front axle components.

Worn units typically show up as a humming or grinding noise from the front wheel that changes with vehicle speed, vibration felt through the steering wheel, or looseness felt when rocking the wheel by hand. GSK Auto manufactures this hub assembly to OEM specification at our Ningbo, China facility, with every unit tested before packing. We supply at wholesale volume with low MOQ and support private label packaging, with our team available to confirm fitment before shipping.

Replacement OEM Numbers

Cross-Reference OEM Number

2103300325, 2093300325, 2303300325

(Confirm against your VIN or chassis code before ordering - this part is specifically for non-4MATIC models and is priced individually with two required per vehicle, so it's worth confirming drivetrain configuration and quantity needs before ordering at volume.)

What Is a Wheel Hub Bearing Assembly?

Function: The wheel hub bearing assembly supports the wheel, allows it to rotate freely with minimal friction, and carries the vehicle's weight at that corner while also serving as the mounting point for the brake disc and wheel.

Working Principle: Sealed bearings inside the hub allow smooth rotation under load while resisting both radial and axial forces from cornering, braking, and road impacts, keeping the wheel running true.

Importance: A worn hub bearing affects both ride comfort and safety, since play or roughness in the bearing can translate into unpredictable handling and, if left unaddressed, complete bearing failure.

Common Failures & Signs: Humming, growling, or grinding noise from the wheel that changes with speed. Vibration felt through the steering wheel, particularly at highway speeds. Looseness or play felt when the wheel is rocked by hand. Uneven tire wear linked to bearing play affecting wheel alignment.

Key Features

OEM-standard fitment - matches factory bearing preload and hub dimensions for the A2303300325 application.

Precision manufacturing - bearing components machined to tight tolerance for smooth, quiet rotation.

Long service life - built to handle sustained daily-driving load.

Excellent fitment - direct bolt-in replacement, no modification required.

Corrosion resistance - housing finish resists moisture and road-salt exposure.

Easy installation - complete assembly, no separate press-fitting required.

Reliable performance - consistent rotation and load-bearing capacity matching factory calibration.

Benefits

Importers - one part number covers multiple Mercedes model lines across nearly two decades of production, simplifying inventory.

Wholesalers - steady demand from a well-established range of C, CLK, and SLK-Class platforms.

Repair Shops - complete assembly reduces installation time compared to bearing-only kits.

Distributors - private label packaging available for building a branded catalog.

End Customers - restored quiet, smooth wheel rotation and steering precision.

Packaging & Shipping

Standard export packaging, sized for a hub assembly. Customized packaging available for distributor branding. OEM-style and private label printing on request. Container loading handled directly, with mixed-SKU consolidation for smaller orders. Worldwide shipping to Europe, North America, South America, the Middle East, Africa, and Southeast Asia.

Frequently Asked Questions

• What does this wheel hub bearing assembly do?

It supports the wheel, allows smooth rotation, and serves as the mounting point for the brake disc and wheel.

• Which vehicles use OEM A2303300325?

Mercedes-Benz C-Class, CLK-Class, and SLK-Class, non-4MATIC, 1994-2012, including C230, C280, C320, C350, CLK320, CLK350, CLK500, SLK280, SLK300, and SLK350 - confirm exact chassis code and drivetrain before ordering.

• Can GSK Auto supply OEM-standard parts?

Yes, this hub assembly is manufactured to match OEM specification for fitment and performance.

• What's the MOQ for wholesale orders?

MOQ varies by order type - contact us directly for current wholesale tiers.

• Do you export worldwide?

Yes, we ship to Europe, North America, South America, the Middle East, Africa, and Southeast Asia.

• Can you customize packaging?

Yes, OEM-style and private label printing are available.

• How do I know if my wheel hub bearing needs replacing?

Common signs include humming or grinding noise from the wheel, vibration through the steering wheel, and play when the wheel is rocked by hand.

Why Choose GSK Auto

GSK Auto manufactures factory-direct, keeping pricing tied to production cost. This hub assembly is built to OEM specification and tested before packing. We support low MOQ, private label packaging, and worldwide shipping, with our technical team available to confirm fitment before you order.

Call to Action

Sourcing front wheel hub bearings for the Mercedes C-Class, CLK, or SLK? Contact GSK Auto for a wholesale quote, catalog, or OEM/private label cooperation.